Improve APPM subscription data retrieving logic

Co-authored-by: Rajitha Kumara <rajitha@entgra.io>
Co-committed-by: Rajitha Kumara <rajitha@entgra.io>

components/application-mgt/io.entgra.device.mgt.core.application.mgt.common/src/main/java/io/entgra/device/mgt/core/application/mgt/common/DeviceSubscription.java

@@ -0,0 +1,115 @@
+/*
+ *  Copyright (c) 2018 - 2024, Entgra (Pvt) Ltd. (http://www.entgra.io) All Rights Reserved.
+ *
+ * Entgra (Pvt) Ltd. licenses this file to you under the Apache License,
+ * Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ *
+ */
+
+package io.entgra.device.mgt.core.application.mgt.common;
+
+import java.sql.Timestamp;
+
+public class DeviceSubscription {
+    private int deviceId;
+    private int subscriptionId;
+    private String deviceName;
+    private String deviceIdentifier;
+    private String deviceStatus;
+    private String deviceOwner;
+    private String deviceType;
+    private String ownershipType;
+    private Timestamp dateOfLastUpdate;
+    private SubscriptionData subscriptionData;
+
+    public int getSubscriptionId() {
+        return subscriptionId;
+    }
+
+    public void setSubscriptionId(int subscriptionId) {
+        this.subscriptionId = subscriptionId;
+    }
+
+    public int getDeviceId() {
+        return deviceId;
+    }
+
+    public void setDeviceId(int deviceId) {
+        this.deviceId = deviceId;
+    }
+
+    public String getDeviceName() {
+        return deviceName;
+    }
+
+    public void setDeviceName(String deviceName) {
+        this.deviceName = deviceName;
+    }
+
+    public String getDeviceIdentifier() {
+        return deviceIdentifier;
+    }
+
+    public void setDeviceIdentifier(String deviceIdentifier) {
+        this.deviceIdentifier = deviceIdentifier;
+    }
+
+    public String getDeviceStatus() {
+        return deviceStatus;
+    }
+
+    public void setDeviceStatus(String deviceStatus) {
+        this.deviceStatus = deviceStatus;
+    }
+
+    public String getDeviceOwner() {
+        return deviceOwner;
+    }
+
+    public void setDeviceOwner(String deviceOwner) {
+        this.deviceOwner = deviceOwner;
+    }
+
+    public String getDeviceType() {
+        return deviceType;
+    }
+
+    public void setDeviceType(String deviceType) {
+        this.deviceType = deviceType;
+    }
+
+    public String getOwnershipType() {
+        return ownershipType;
+    }
+
+    public void setOwnershipType(String ownershipType) {
+        this.ownershipType = ownershipType;
+    }
+
+    public Timestamp getDateOfLastUpdate() {
+        return dateOfLastUpdate;
+    }
+
+    public void setDateOfLastUpdate(Timestamp dateOfLastUpdate) {
+        this.dateOfLastUpdate = dateOfLastUpdate;
+    }
+
+    public SubscriptionData getSubscriptionData() {
+        return subscriptionData;
+    }
+
+    public void setSubscriptionData(SubscriptionData subscriptionData) {
+        this.subscriptionData = subscriptionData;
+    }
+}

components/application-mgt/io.entgra.device.mgt.core.application.mgt.common/src/main/java/io/entgra/device/mgt/core/application/mgt/common/DeviceSubscriptionFilterCriteria.java

@@ -0,0 +1,68 @@
+/*
+ *  Copyright (c) 2018 - 2024, Entgra (Pvt) Ltd. (http://www.entgra.io) All Rights Reserved.
+ *
+ * Entgra (Pvt) Ltd. licenses this file to you under the Apache License,
+ * Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ *
+ */
+
+package io.entgra.device.mgt.core.application.mgt.common;
+
+public class DeviceSubscriptionFilterCriteria {
+    private String name;
+    private String owner;
+    private String deviceStatus;
+    private String filteringDeviceSubscriptionStatus; // COMPLETE, PENDING ...
+    private String triggeredBy;
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getOwner() {
+        return owner;
+    }
+
+    public void setOwner(String owner) {
+        this.owner = owner;
+    }
+
+    public String getDeviceStatus() {
+        return deviceStatus;
+    }
+
+    public void setDeviceStatus(String deviceStatus) {
+        this.deviceStatus = deviceStatus;
+    }
+
+    public String getFilteringDeviceSubscriptionStatus() {
+        return filteringDeviceSubscriptionStatus;
+    }
+
+    public void setFilteringDeviceSubscriptionStatus(String filteringDeviceSubscriptionStatus) {
+        this.filteringDeviceSubscriptionStatus = filteringDeviceSubscriptionStatus;
+    }
+
+    public String getTriggeredBy() {
+        return triggeredBy;
+    }
+
+    public void setTriggeredBy(String triggeredBy) {
+        this.triggeredBy = triggeredBy;
+    }
+}

components/application-mgt/io.entgra.device.mgt.core.application.mgt.common/src/main/java/io/entgra/device/mgt/core/application/mgt/common/SubscriptionData.java

@@ -0,0 +1,70 @@
+/*
+ *  Copyright (c) 2018 - 2024, Entgra (Pvt) Ltd. (http://www.entgra.io) All Rights Reserved.
+ *
+ * Entgra (Pvt) Ltd. licenses this file to you under the Apache License,
+ * Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ *
+ */
+
+package io.entgra.device.mgt.core.application.mgt.common;
+
+import java.sql.Timestamp;
+
+public class SubscriptionData {
+    private String deviceSubscriptionStatus;
+    private String triggeredBy;
+    private String subscriptionType;
+    private Timestamp triggeredAt;
+    private int subscriptionId;
+
+    public String getDeviceSubscriptionStatus() {
+        return deviceSubscriptionStatus;
+    }
+
+    public void setDeviceSubscriptionStatus(String deviceSubscriptionStatus) {
+        this.deviceSubscriptionStatus = deviceSubscriptionStatus;
+    }
+
+    public String getTriggeredBy() {
+        return triggeredBy;
+    }
+
+    public void setTriggeredBy(String triggeredBy) {
+        this.triggeredBy = triggeredBy;
+    }
+
+    public String getSubscriptionType() {
+        return subscriptionType;
+    }
+
+    public void setSubscriptionType(String subscriptionType) {
+        this.subscriptionType = subscriptionType;
+    }
+
+    public Timestamp getTriggeredAt() {
+        return triggeredAt;
+    }
+
+    public void setTriggeredAt(Timestamp triggeredAt) {
+        this.triggeredAt = triggeredAt;
+    }
+
+    public int getSubscriptionId() {
+        return subscriptionId;
+    }
+
+    public void setSubscriptionId(int subscriptionId) {
+        this.subscriptionId = subscriptionId;
+    }
+}

components/application-mgt/io.entgra.device.mgt.core.application.mgt.common/src/main/java/io/entgra/device/mgt/core/application/mgt/common/SubscriptionEntity.java

@@ -0,0 +1,88 @@
+/*
+ *  Copyright (c) 2018 - 2024, Entgra (Pvt) Ltd. (http://www.entgra.io) All Rights Reserved.
+ *
+ * Entgra (Pvt) Ltd. licenses this file to you under the Apache License,
+ * Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ *
+ */
+
+package io.entgra.device.mgt.core.application.mgt.common;
+
+import java.sql.Timestamp;
+
+public class SubscriptionEntity {
+    private String identity;
+    private String subscribedBy;
+    private Timestamp subscribedTimestamp;
+    private boolean unsubscribed;
+    private String unsubscribedBy;
+    private Timestamp unsubscribedTimestamp;
+    private int applicationReleaseId;
+
+    public String getIdentity() {
+        return identity;
+    }
+
+    public void setIdentity(String identity) {
+        this.identity = identity;
+    }
+
+    public String getSubscribedBy() {
+        return subscribedBy;
+    }
+
+    public void setSubscribedBy(String subscribedBy) {
+        this.subscribedBy = subscribedBy;
+    }
+
+    public Timestamp getSubscribedTimestamp() {
+        return subscribedTimestamp;
+    }
+
+    public void setSubscribedTimestamp(Timestamp subscribedTimestamp) {
+        this.subscribedTimestamp = subscribedTimestamp;
+    }
+
+    public boolean getUnsubscribed() {
+        return unsubscribed;
+    }
+
+    public void setUnsubscribed(boolean unsubscribed) {
+        this.unsubscribed = unsubscribed;
+    }
+
+    public String getUnsubscribedBy() {
+        return unsubscribedBy;
+    }
+
+    public void setUnsubscribedBy(String unsubscribedBy) {
+        this.unsubscribedBy = unsubscribedBy;
+    }
+
+    public Timestamp getUnsubscribedTimestamp() {
+        return unsubscribedTimestamp;
+    }
+
+    public void setUnsubscribedTimestamp(Timestamp unsubscribedTimestamp) {
+        this.unsubscribedTimestamp = unsubscribedTimestamp;
+    }
+
+    public int getApplicationReleaseId() {
+        return applicationReleaseId;
+    }
+
+    public void setApplicationReleaseId(int applicationReleaseId) {
+        this.applicationReleaseId = applicationReleaseId;
+    }
+}

components/application-mgt/io.entgra.device.mgt.core.application.mgt.common/src/main/java/io/entgra/device/mgt/core/application/mgt/common/SubscriptionInfo.java

@@ -0,0 +1,77 @@
+/*
+ *  Copyright (c) 2018 - 2024, Entgra (Pvt) Ltd. (http://www.entgra.io) All Rights Reserved.
+ *
+ * Entgra (Pvt) Ltd. licenses this file to you under the Apache License,
+ * Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ *
+ */
+
+package io.entgra.device.mgt.core.application.mgt.common;
+
+public class SubscriptionInfo {
+    private String applicationUUID;
+    private String subscriptionType;
+    private String deviceSubscriptionStatus;
+    private String identifier;
+    private String subscriptionStatus;
+    private DeviceSubscriptionFilterCriteria deviceSubscriptionFilterCriteria;
+
+    public String getApplicationUUID() {
+        return applicationUUID;
+    }
+
+    public void setApplicationUUID(String applicationUUID) {
+        this.applicationUUID = applicationUUID;
+    }
+
+    public String getSubscriptionType() {
+        return subscriptionType;
+    }
+
+    public void setSubscriptionType(String subscriptionType) {
+        this.subscriptionType = subscriptionType;
+    }
+
+    public String getDeviceSubscriptionStatus() {
+        return deviceSubscriptionStatus;
+    }
+
+    public void setDeviceSubscriptionStatus(String deviceSubscriptionStatus) {
+        this.deviceSubscriptionStatus = deviceSubscriptionStatus;
+    }
+
+    public String getIdentifier() {
+        return identifier;
+    }
+
+    public void setIdentifier(String identifier) {
+        this.identifier = identifier;
+    }
+
+    public String getSubscriptionStatus() {
+        return subscriptionStatus;
+    }
+
+    public void setSubscriptionStatus(String subscriptionStatus) {
+        this.subscriptionStatus = subscriptionStatus;
+    }
+
+    public DeviceSubscriptionFilterCriteria getDeviceSubscriptionFilterCriteria() {
+        return deviceSubscriptionFilterCriteria;
+    }
+
+    public void setDeviceSubscriptionFilterCriteria(DeviceSubscriptionFilterCriteria deviceSubscriptionFilterCriteria) {
+        this.deviceSubscriptionFilterCriteria = deviceSubscriptionFilterCriteria;
+    }
+}

components/application-mgt/io.entgra.device.mgt.core.application.mgt.common/src/main/java/io/entgra/device/mgt/core/application/mgt/common/SubscriptionMetadata.java

@@ -0,0 +1,68 @@
+/*
+ *  Copyright (c) 2018 - 2024, Entgra (Pvt) Ltd. (http://www.entgra.io) All Rights Reserved.
+ *
+ * Entgra (Pvt) Ltd. licenses this file to you under the Apache License,
+ * Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ *
+ */
+
+package io.entgra.device.mgt.core.application.mgt.common;
+
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+public class SubscriptionMetadata {
+    public static final class DeviceSubscriptionStatus {
+        public static final String NEW = "NEW";
+        public static final String PENDING = "PENDING";
+        public static final String COMPLETED = "COMPLETED";
+        public static final String ERROR = "ERROR";
+        public static final String INVALID = "INVALID";
+        public static final String UNAUTHORIZED = "UNAUTHORIZED";
+        public static final String IN_PROGRESS = "IN_PROGRESS";
+        public static final String REPEAT = "REPEAT";
+    }
+
+    public static final class SubscriptionTypes {
+        public static final String ROLE = "role";
+        public static final String DEVICE = "device";
+        public static final String GROUP = "group";
+        public static final String USER = "user";
+    }
+
+    public static final class DBSubscriptionStatus {
+        public static final List<String> COMPLETED_STATUS_LIST =
+                Collections.singletonList(DeviceSubscriptionStatus.COMPLETED);
+        public static final List<String> ERROR_STATUS_LIST =
+                Arrays.asList(DeviceSubscriptionStatus.ERROR, DeviceSubscriptionStatus.INVALID, DeviceSubscriptionStatus.UNAUTHORIZED);
+        public static final List<String> PENDING_STATUS_LIST =
+                Arrays.asList(DeviceSubscriptionStatus.PENDING, DeviceSubscriptionStatus.IN_PROGRESS, DeviceSubscriptionStatus.REPEAT);
+    }
+
+    public static Map<String, List<String>> deviceSubscriptionStatusToDBSubscriptionStatusMap;
+    static {
+        Map<String, List<String>> statusMap = new HashMap<>();
+        statusMap.put(DeviceSubscriptionStatus.COMPLETED, DBSubscriptionStatus.COMPLETED_STATUS_LIST);
+        statusMap.put(DeviceSubscriptionStatus.PENDING, DBSubscriptionStatus.PENDING_STATUS_LIST);
+        statusMap.put(DeviceSubscriptionStatus.IN_PROGRESS, DBSubscriptionStatus.PENDING_STATUS_LIST);
+        statusMap.put(DeviceSubscriptionStatus.REPEAT, DBSubscriptionStatus.PENDING_STATUS_LIST);
+        statusMap.put(DeviceSubscriptionStatus.ERROR, DBSubscriptionStatus.ERROR_STATUS_LIST);
+        statusMap.put(DeviceSubscriptionStatus.INVALID, DBSubscriptionStatus.ERROR_STATUS_LIST);
+        statusMap.put(DeviceSubscriptionStatus.UNAUTHORIZED, DBSubscriptionStatus.ERROR_STATUS_LIST);
+        deviceSubscriptionStatusToDBSubscriptionStatusMap = Collections.unmodifiableMap(statusMap);
+    }
+}

components/application-mgt/io.entgra.device.mgt.core.application.mgt.common/src/main/java/io/entgra/device/mgt/core/application/mgt/common/SubscriptionResponse.java

@@ -0,0 +1,63 @@
+/*
+ *  Copyright (c) 2018 - 2024, Entgra (Pvt) Ltd. (http://www.entgra.io) All Rights Reserved.
+ *
+ * Entgra (Pvt) Ltd. licenses this file to you under the Apache License,
+ * Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ *
+ */
+
+package io.entgra.device.mgt.core.application.mgt.common;
+
+import java.util.List;
+
+public class SubscriptionResponse {
+    private String applicationUUID;
+    private int count;
+    private List<?> data;
+
+    public SubscriptionResponse(String applicationUUID, int count, List<?> data) {
+        this.applicationUUID = applicationUUID;
+        this.count = count;
+        this.data = data;
+    }
+
+    public SubscriptionResponse(String applicationUUID, List<?> data) {
+        this.applicationUUID = applicationUUID;
+        this.data = data;
+    }
+
+    public String getApplicationUUID() {
+        return applicationUUID;
+    }
+
+    public void setApplicationUUID(String applicationUUID) {
+        this.applicationUUID = applicationUUID;
+    }
+
+    public int getCount() {
+        return count;
+    }
+
+    public void setCount(int count) {
+        this.count = count;
+    }
+
+    public List<?> getData() {
+        return data;
+    }
+
+    public void setData(List<?> data) {
+        this.data = data;
+    }
+}

components/application-mgt/io.entgra.device.mgt.core.application.mgt.common/src/main/java/io/entgra/device/mgt/core/application/mgt/common/SubscriptionStatistics.java

@@ -0,0 +1,68 @@
+/*
+ *  Copyright (c) 2018 - 2024, Entgra (Pvt) Ltd. (http://www.entgra.io) All Rights Reserved.
+ *
+ * Entgra (Pvt) Ltd. licenses this file to you under the Apache License,
+ * Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ *
+ */
+
+package io.entgra.device.mgt.core.application.mgt.common;
+
+public class SubscriptionStatistics {
+    private float completedPercentage;
+    private float failedPercentage;
+    private float pendingPercentage;
+    private float newDevicesPercentage;
+
+    public SubscriptionStatistics() {}
+    public SubscriptionStatistics(float completedPercentage, float failedPercentage, float pendingPercentage,
+                                  float newDevicesPercentage) {
+        this.completedPercentage = completedPercentage;
+        this.failedPercentage = failedPercentage;
+        this.pendingPercentage = pendingPercentage;
+        this.newDevicesPercentage = newDevicesPercentage;
+    }
+
+    public float getCompletedPercentage() {
+        return completedPercentage;
+    }
+
+    public void setCompletedPercentage(float completedPercentage) {
+        this.completedPercentage = completedPercentage;
+    }
+
+    public float getFailedPercentage() {
+        return failedPercentage;
+    }
+
+    public void setFailedPercentage(float failedPercentage) {
+        this.failedPercentage = failedPercentage;
+    }
+
+    public float getPendingPercentage() {
+        return pendingPercentage;
+    }
+
+    public void setPendingPercentage(float pendingPercentage) {
+        this.pendingPercentage = pendingPercentage;
+    }
+
+    public float getNewDevicesPercentage() {
+        return newDevicesPercentage;
+    }
+
+    public void setNewDevicesPercentage(float newDevicesPercentage) {
+        this.newDevicesPercentage = newDevicesPercentage;
+    }
+}

components/application-mgt/io.entgra.device.mgt.core.application.mgt.common/src/main/java/io/entgra/device/mgt/core/application/mgt/common/dto/DeviceSubscriptionDTO.java

@@ -19,6 +19,7 @@
 package io.entgra.device.mgt.core.application.mgt.common.dto;
 
 import java.sql.Timestamp;
+import java.util.Objects;
 
 public class DeviceSubscriptionDTO {
 
@@ -34,6 +35,19 @@ public class DeviceSubscriptionDTO {
     private int appReleaseId;
     private String appUuid;
 
+    public DeviceSubscriptionDTO() {
+
+    }
+
+    public DeviceSubscriptionDTO(int deviceId) {
+        this.deviceId = deviceId;
+    }
+
+    public DeviceSubscriptionDTO(int deviceId, String status) {
+        this.deviceId = deviceId;
+        this.status = status;
+    }
+
     public int getId() {
         return id;
     }
@@ -121,4 +135,17 @@ public class DeviceSubscriptionDTO {
     public void setAppUuid(String appUuid) {
         this.appUuid = appUuid;
     }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        DeviceSubscriptionDTO that = (DeviceSubscriptionDTO) o;
+        return deviceId == that.deviceId;
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(deviceId);
+    }
 }

components/application-mgt/io.entgra.device.mgt.core.application.mgt.common/src/main/java/io/entgra/device/mgt/core/application/mgt/common/dto/SubscriptionStatisticDTO.java

@@ -0,0 +1,62 @@
+/*
+ *  Copyright (c) 2018 - 2024, Entgra (Pvt) Ltd. (http://www.entgra.io) All Rights Reserved.
+ *
+ * Entgra (Pvt) Ltd. licenses this file to you under the Apache License,
+ * Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ *
+ */
+
+package io.entgra.device.mgt.core.application.mgt.common.dto;
+
+public class SubscriptionStatisticDTO {
+    private int completedDeviceCount = 0;
+    private int pendingDevicesCount = 0;
+    private int failedDevicesCount = 0;
+
+    public void addToComplete(int count) {
+        completedDeviceCount += count;
+    }
+
+    public void addToPending(int count) {
+        pendingDevicesCount += count;
+    }
+
+    public void addToFailed(int count) {
+        failedDevicesCount += count ;
+    }
+
+    public int getCompletedDeviceCount() {
+        return completedDeviceCount;
+    }
+
+    public void setCompletedDeviceCount(int completedDeviceCount) {
+        this.completedDeviceCount = completedDeviceCount;
+    }
+
+    public int getPendingDevicesCount() {
+        return pendingDevicesCount;
+    }
+
+    public void setPendingDevicesCount(int pendingDevicesCount) {
+        this.pendingDevicesCount = pendingDevicesCount;
+    }
+
+    public int getFailedDevicesCount() {
+        return failedDevicesCount;
+    }
+
+    public void setFailedDevicesCount(int failedDevicesCount) {
+        this.failedDevicesCount = failedDevicesCount;
+    }
+}

components/application-mgt/io.entgra.device.mgt.core.application.mgt.common/src/main/java/io/entgra/device/mgt/core/application/mgt/common/services/SubscriptionManager.java

@@ -19,9 +19,16 @@ package io.entgra.device.mgt.core.application.mgt.common.services;
 
 import io.entgra.device.mgt.core.application.mgt.common.ApplicationInstallResponse;
 import io.entgra.device.mgt.core.application.mgt.common.CategorizedSubscriptionResult;
+import io.entgra.device.mgt.core.application.mgt.common.DeviceSubscription;
+import io.entgra.device.mgt.core.application.mgt.common.DeviceSubscriptionData;
 import io.entgra.device.mgt.core.application.mgt.common.ExecutionStatus;
+import io.entgra.device.mgt.core.application.mgt.common.SubscriptionEntity;
+import io.entgra.device.mgt.core.application.mgt.common.SubscriptionInfo;
+import io.entgra.device.mgt.core.application.mgt.common.SubscriptionResponse;
+import io.entgra.device.mgt.core.application.mgt.common.SubscriptionStatistics;
 import io.entgra.device.mgt.core.application.mgt.common.SubscriptionType;
 import io.entgra.device.mgt.core.application.mgt.common.dto.CategorizedSubscriptionCountsDTO;
+import io.entgra.device.mgt.core.application.mgt.common.dto.DeviceSubscriptionDTO;
 import io.entgra.device.mgt.core.application.mgt.common.dto.ScheduledSubscriptionDTO;
 import io.entgra.device.mgt.core.application.mgt.common.dto.SubscriptionsDTO;
 import io.entgra.device.mgt.core.application.mgt.common.dto.DeviceOperationDTO;
@@ -224,72 +231,34 @@ public interface SubscriptionManager {
     Activity getOperationAppDetails(String id) throws SubscriptionManagementException;
 
     /**
-     * Retrieves the group details associated with a given app release UUID.
-     *
-     * @param uuid the UUID of the app release
-     * @param subscriptionStatus the status of the subscription (subscribed or unsubscribed)
-     * @param offset the offset for the data set
-     * @param limit the limit for the data set
-     * @return {@link SubscriptionsDTO} which contains the details of subscriptions.
-     * @throws ApplicationManagementException if an error occurs while fetching the group details
-     */
-    public List<SubscriptionsDTO> getGroupsSubscriptionDetailsByUUID(String uuid, String subscriptionStatus,
-                                                                     PaginationRequest request, int offset,
-                                                                     int limit) throws ApplicationManagementException;
-
-    /**
-     * Retrieves the user details associated with a given app release UUID.
-     *
-     * @param uuid the UUID of the app release
-     * @param subscriptionStatus the status of the subscription (subscribed or unsubscribed)
-     * @param offset the offset for the data set
-     * @param limit the limit for the data set
-     * @return {@link SubscriptionsDTO} which contains the details of subscriptions.
-     * @throws ApplicationManagementException if an error occurs while fetching the user details
-    */
-    List<SubscriptionsDTO> getUserSubscriptionsByUUID(String uuid, String subscriptionStatus, PaginationRequest request,
-                                                      int offset, int limit) throws ApplicationManagementException;
-
-    /**
-     * Retrieves the Role details associated with a given app release UUID.
-     *
-     * @param uuid the UUID of the app release
-     * @param subscriptionStatus the status of the subscription (subscribed or unsubscribed)
-     * @param offset the offset for the data set
-     * @param limit the limit for the data set
-     * @return {@link SubscriptionsDTO} which contains the details of subscriptions.
-     * @throws ApplicationManagementException if an error occurs while fetching the role details
+     * Get subscription data describes by {@link SubscriptionInfo} entity
+     * @param subscriptionInfo {@link SubscriptionInfo}
+     * @param limit Limit value
+     * @param offset Offset value
+     * @return {@link SubscriptionResponse}
+     * @throws ApplicationManagementException Throws when error encountered while getting subscription data
      */
-    List<SubscriptionsDTO> getRoleSubscriptionsByUUID(String uuid, String subscriptionStatus, PaginationRequest request,
-                                                      int offset, int limit) throws ApplicationManagementException;
+    SubscriptionResponse getSubscriptions(SubscriptionInfo subscriptionInfo, int limit, int offset)
+            throws ApplicationManagementException;
 
     /**
-     * Retrieves the Device Subscription details associated with a given app release UUID.
-     *
-     * @param uuid the UUID of the app release
-     * @param subscriptionStatus the status of the subscription (subscribed or unsubscribed)
-     * @param offset the offset for the data set
-     * @param limit the limit for the data set
-     * @return {@link DeviceSubscriptionResponseDTO} which contains the details of device subscriptions.
-     * @throws ApplicationManagementException if an error occurs while fetching the device subscription details
+     * Get status based subscription data describes by {@link SubscriptionInfo} entity
+     * @param subscriptionInfo {@link SubscriptionInfo}
+     * @param limit Limit value
+     * @param offset Offset value
+     * @return {@link SubscriptionResponse}
+     * @throws ApplicationManagementException Throws when error encountered while getting subscription data
      */
-    DeviceSubscriptionResponseDTO getDeviceSubscriptionsDetailsByUUID(String uuid, String subscriptionStatus,
-                                                                      PaginationRequest request, int offset,
-                                                                      int limit) throws ApplicationManagementException;
+    SubscriptionResponse getStatusBaseSubscriptions(SubscriptionInfo subscriptionInfo, int limit, int offset)
+            throws ApplicationManagementException;
 
     /**
-     * Retrieves the All Device details associated with a given app release UUID.
-     *
-     * @param uuid the UUID of the app release
-     * @param subscriptionStatus the status of the subscription (subscribed or unsubscribed)
-     * @param offset the offset for the data set
-     * @param limit the limit for the data set
-     * @return {@link DeviceSubscriptionResponseDTO} which contains the details of device subscriptions.
-     * @throws ApplicationManagementException if an error occurs while fetching the subscription details
+     * Get subscription statistics related data describes by the {@link SubscriptionInfo}
+     * @param subscriptionInfo {@link SubscriptionInfo}
+     * @return {@link SubscriptionStatistics}
+     * @throws ApplicationManagementException Throws when error encountered while getting statistics
      */
-    DeviceSubscriptionResponseDTO getAllSubscriptionDetailsByUUID(String uuid, String subscriptionStatus,
-                                                                  PaginationRequest request, int offset,
-                                                                  int limit) throws ApplicationManagementException;
+    SubscriptionStatistics getStatistics(SubscriptionInfo subscriptionInfo) throws ApplicationManagementException;
 
     /**
      * This method is responsible for retrieving device subscription details related to the given UUID.

components/application-mgt/io.entgra.device.mgt.core.application.mgt.core/src/main/java/io/entgra/device/mgt/core/application/mgt/core/dao/SubscriptionDAO.java

@@ -19,6 +19,8 @@ package io.entgra.device.mgt.core.application.mgt.core.dao;
 
 import io.entgra.device.mgt.core.application.mgt.common.ExecutionStatus;
 import io.entgra.device.mgt.core.application.mgt.common.dto.GroupSubscriptionDTO;
+import io.entgra.device.mgt.core.application.mgt.common.SubscriptionEntity;
+import io.entgra.device.mgt.core.application.mgt.common.dto.SubscriptionStatisticDTO;
 import io.entgra.device.mgt.core.application.mgt.common.dto.SubscriptionsDTO;
 import io.entgra.device.mgt.core.application.mgt.common.dto.DeviceSubscriptionDTO;
 import io.entgra.device.mgt.core.application.mgt.common.dto.ApplicationReleaseDTO;
@@ -327,7 +329,7 @@ public interface SubscriptionDAO {
      * @return {@link GroupSubscriptionDTO} which contains the details of group subscriptions.
      * @throws ApplicationManagementDAOException if connection establishment fails.
      */
-    List<GroupSubscriptionDTO> getGroupsSubscriptionDetailsByAppReleaseID(int appReleaseId, boolean unsubscribe, int tenantId, int offset, int limit)
+    List<SubscriptionEntity> getGroupsSubscriptionDetailsByAppReleaseID(int appReleaseId, boolean unsubscribe, int tenantId, int offset, int limit)
             throws ApplicationManagementDAOException;
 
     /**
@@ -341,7 +343,7 @@ public interface SubscriptionDAO {
      * @return {@link SubscriptionsDTO} which contains the details of subscriptions.
      * @throws ApplicationManagementDAOException if connection establishment or SQL execution fails.
      */
-    List<SubscriptionsDTO> getUserSubscriptionsByAppReleaseID(int appReleaseId, boolean unsubscribe, int tenantId,
+    List<SubscriptionEntity> getUserSubscriptionsByAppReleaseID(int appReleaseId, boolean unsubscribe, int tenantId,
                                                                  int offset, int limit) throws ApplicationManagementDAOException;
 
     /**
@@ -355,7 +357,7 @@ public interface SubscriptionDAO {
      * @return {@link SubscriptionsDTO} which contains the details of subscriptions.
      * @throws ApplicationManagementDAOException if connection establishment or SQL execution fails.
      */
-    List<SubscriptionsDTO>  getRoleSubscriptionsByAppReleaseID(int appReleaseId, boolean unsubscribe, int tenantId, int offset, int limit)
+    List<SubscriptionEntity>  getRoleSubscriptionsByAppReleaseID(int appReleaseId, boolean unsubscribe, int tenantId, int offset, int limit)
             throws ApplicationManagementDAOException;
 
     /**
@@ -398,8 +400,11 @@ public interface SubscriptionDAO {
      * @throws ApplicationManagementDAOException if connection establishment or SQL execution fails.
      */
     List<DeviceSubscriptionDTO> getSubscriptionDetailsByDeviceIds(int appReleaseId, boolean unsubscribe, int tenantId,
-                                                                  List<Integer> deviceIds, String actionStatus, String actionType,
-                                                                  String actionTriggeredBy, String tabActionStatus) throws ApplicationManagementDAOException;
+                                                                  List<Integer> deviceIds, List<String> actionStatus, String actionType,
+                                                                  String actionTriggeredBy, int limit, int offset) throws ApplicationManagementDAOException;
+    int getDeviceSubscriptionCount(int appReleaseId, boolean unsubscribe, int tenantId,
+                                   List<Integer> deviceIds, List<String> actionStatus, String actionType,
+                                   String actionTriggeredBy) throws ApplicationManagementDAOException;
 
     /**
      * This method is used to get the details of device subscriptions related to a UUID.
@@ -415,9 +420,13 @@ public interface SubscriptionDAO {
      * @return {@link DeviceOperationDTO} which contains the details of device subscriptions.
      * @throws ApplicationManagementDAOException if connection establishment or SQL execution fails.
      */
-    List<DeviceSubscriptionDTO> getAllSubscriptionsDetails(int appReleaseId, boolean unsubscribe, int tenantId, String actionStatus, String actionType,
+    List<DeviceSubscriptionDTO> getAllSubscriptionsDetails(int appReleaseId, boolean unsubscribe, int tenantId, List<String> actionStatus, String actionType,
                                                            String actionTriggeredBy, int offset, int limit) throws ApplicationManagementDAOException;
 
+    int getAllSubscriptionsCount(int appReleaseId, boolean unsubscribe, int tenantId,
+                              List<String> actionStatus, String actionType, String actionTriggeredBy)
+            throws ApplicationManagementDAOException;
+
     /**
      * This method is used to get the counts of all subscription types related to a UUID.
      *
@@ -518,6 +527,8 @@ public interface SubscriptionDAO {
      */
     int getUserUnsubscriptionCount(int appReleaseId, int tenantId) throws ApplicationManagementDAOException;
 
+    SubscriptionStatisticDTO getSubscriptionStatistic(List<Integer> deviceIds, String subscriptionType, boolean isUnsubscribed,
+                                                      int tenantId) throws ApplicationManagementDAOException;
     /**
      * This method is used to get the counts of devices related to a UUID.
      *

components/application-mgt/io.entgra.device.mgt.core.application.mgt.core/src/main/java/io/entgra/device/mgt/core/application/mgt/core/dao/impl/subscription/GenericSubscriptionDAOImpl.java

@@ -17,8 +17,11 @@
  */
 package io.entgra.device.mgt.core.application.mgt.core.dao.impl.subscription;
 
+import io.entgra.device.mgt.core.application.mgt.common.SubscriptionMetadata;
 import io.entgra.device.mgt.core.application.mgt.common.dto.GroupSubscriptionDTO;
 import io.entgra.device.mgt.core.application.mgt.common.dto.DeviceOperationDTO;
+import io.entgra.device.mgt.core.application.mgt.common.SubscriptionEntity;
+import io.entgra.device.mgt.core.application.mgt.common.dto.SubscriptionStatisticDTO;
 import io.entgra.device.mgt.core.application.mgt.common.dto.SubscriptionsDTO;
 import io.entgra.device.mgt.core.application.mgt.core.dao.SubscriptionDAO;
 import io.entgra.device.mgt.core.application.mgt.core.dao.impl.AbstractDAOImpl;
@@ -43,9 +46,11 @@ import java.sql.Timestamp;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Calendar;
+import java.util.Collections;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.Objects;
 import java.util.StringJoiner;
 import java.util.stream.Collectors;
 
@@ -1641,20 +1646,27 @@ public class GenericSubscriptionDAOImpl extends AbstractDAOImpl implements Subsc
     }
 
     @Override
-    public List<GroupSubscriptionDTO> getGroupsSubscriptionDetailsByAppReleaseID(int appReleaseId, boolean unsubscribe, int tenantId, int offset, int limit)
+    public List<SubscriptionEntity> getGroupsSubscriptionDetailsByAppReleaseID(int appReleaseId, boolean unsubscribe, int tenantId, int offset, int limit)
             throws ApplicationManagementDAOException {
         if (log.isDebugEnabled()) {
             log.debug("Request received in DAO Layer to get groups related to the given AppReleaseID.");
         }
         try {
             Connection conn = this.getDBConnection();
-            List<GroupSubscriptionDTO> groupDetails = new ArrayList<>();
+            List<SubscriptionEntity> subscriptionEntities = new ArrayList<>();
 
             String subscriptionStatusTime = unsubscribe ? "GS.UNSUBSCRIBED_TIMESTAMP" : "GS.SUBSCRIBED_TIMESTAMP";
-            String sql = "SELECT GS.GROUP_NAME, GS.SUBSCRIBED_BY, GS.SUBSCRIBED_TIMESTAMP, GS.UNSUBSCRIBED, " +
-                    "GS.UNSUBSCRIBED_BY, GS.UNSUBSCRIBED_TIMESTAMP, GS.AP_APP_RELEASE_ID " +
+            String sql = "SELECT GS.GROUP_NAME, " +
+                    "GS.SUBSCRIBED_BY, " +
+                    "GS.SUBSCRIBED_TIMESTAMP, " +
+                    "GS.UNSUBSCRIBED, " +
+                    "GS.UNSUBSCRIBED_BY, " +
+                    "GS.UNSUBSCRIBED_TIMESTAMP, " +
+                    "GS.AP_APP_RELEASE_ID " +
                     "FROM AP_GROUP_SUBSCRIPTION GS " +
-                    "WHERE GS.AP_APP_RELEASE_ID = ? AND GS.UNSUBSCRIBED = ? AND GS.TENANT_ID = ? " +
+                    "WHERE GS.AP_APP_RELEASE_ID = ? " +
+                    "AND GS.UNSUBSCRIBED = ? " +
+                    "AND GS.TENANT_ID = ? " +
                     "ORDER BY " + subscriptionStatusTime + " DESC ";
 
             // Append limit and offset only if limit is not -1
@@ -1673,21 +1685,21 @@ public class GenericSubscriptionDAOImpl extends AbstractDAOImpl implements Subsc
                 }
 
                 try (ResultSet rs = ps.executeQuery()) {
-                    GroupSubscriptionDTO groupDetail;
+                    SubscriptionEntity subscriptionEntity;
                     while (rs.next()) {
-                        groupDetail = new GroupSubscriptionDTO();
-                        groupDetail.setGroupName(rs.getString("GROUP_NAME"));
-                        groupDetail.setSubscribedBy(rs.getString("SUBSCRIBED_BY"));
-                        groupDetail.setSubscribedTimestamp(rs.getTimestamp("SUBSCRIBED_TIMESTAMP"));
-                        groupDetail.setUnsubscribed(rs.getBoolean("UNSUBSCRIBED"));
-                        groupDetail.setUnsubscribedBy(rs.getString("UNSUBSCRIBED_BY"));
-                        groupDetail.setUnsubscribedTimestamp(rs.getTimestamp("UNSUBSCRIBED_TIMESTAMP"));
-                        groupDetail.setAppReleaseId(rs.getInt("AP_APP_RELEASE_ID"));
-
-                        groupDetails.add(groupDetail);
+                        subscriptionEntity = new SubscriptionEntity();
+                        subscriptionEntity.setIdentity(rs.getString("GROUP_NAME"));
+                        subscriptionEntity.setSubscribedBy(rs.getString("SUBSCRIBED_BY"));
+                        subscriptionEntity.setSubscribedTimestamp(rs.getTimestamp("SUBSCRIBED_TIMESTAMP"));
+                        subscriptionEntity.setUnsubscribed(rs.getBoolean("UNSUBSCRIBED"));
+                        subscriptionEntity.setUnsubscribedBy(rs.getString("UNSUBSCRIBED_BY"));
+                        subscriptionEntity.setUnsubscribedTimestamp(rs.getTimestamp("UNSUBSCRIBED_TIMESTAMP"));
+                        subscriptionEntity.setApplicationReleaseId(rs.getInt("AP_APP_RELEASE_ID"));
+
+                        subscriptionEntities.add(subscriptionEntity);
                     }
                 }
-                return groupDetails;
+                return subscriptionEntities;
             }
         } catch (DBConnectionException e) {
             String msg = "Error occurred while obtaining the DB connection to get groups for the given UUID.";
@@ -1701,20 +1713,27 @@ public class GenericSubscriptionDAOImpl extends AbstractDAOImpl implements Subsc
     }
 
     @Override
-    public List<SubscriptionsDTO> getUserSubscriptionsByAppReleaseID(int appReleaseId, boolean unsubscribe, int tenantId,
+    public List<SubscriptionEntity> getUserSubscriptionsByAppReleaseID(int appReleaseId, boolean unsubscribe, int tenantId,
                                                                      int offset, int limit) throws ApplicationManagementDAOException {
         if (log.isDebugEnabled()) {
             log.debug("Request received in DAO Layer to get user subscriptions related to the given UUID.");
         }
         try {
             Connection conn = this.getDBConnection();
-            List<SubscriptionsDTO> userSubscriptions = new ArrayList<>();
+            List<SubscriptionEntity> subscriptionEntities = new ArrayList<>();
 
             String subscriptionStatusTime = unsubscribe ? "US.UNSUBSCRIBED_TIMESTAMP" : "US.SUBSCRIBED_TIMESTAMP";
-            String sql = "SELECT US.USER_NAME, US.SUBSCRIBED_BY, US.SUBSCRIBED_TIMESTAMP, US.UNSUBSCRIBED, " +
-                    "US.UNSUBSCRIBED_BY, US.UNSUBSCRIBED_TIMESTAMP, US.AP_APP_RELEASE_ID " +
+            String sql = "SELECT US.USER_NAME, " +
+                    "US.SUBSCRIBED_BY, " +
+                    "US.SUBSCRIBED_TIMESTAMP, " +
+                    "US.UNSUBSCRIBED, " +
+                    "US.UNSUBSCRIBED_BY, " +
+                    "US.UNSUBSCRIBED_TIMESTAMP, " +
+                    "US.AP_APP_RELEASE_ID " +
                     "FROM AP_USER_SUBSCRIPTION US " +
-                    "WHERE US.AP_APP_RELEASE_ID = ? AND US.UNSUBSCRIBED = ? AND US.TENANT_ID = ? " +
+                    "WHERE US.AP_APP_RELEASE_ID = ? " +
+                    "AND US.UNSUBSCRIBED = ? " +
+                    "AND US.TENANT_ID = ? " +
                     "ORDER BY " + subscriptionStatusTime + " DESC " +
                     "LIMIT ? OFFSET ?";
             try (PreparedStatement ps = conn.prepareStatement(sql)) {
@@ -1724,21 +1743,21 @@ public class GenericSubscriptionDAOImpl extends AbstractDAOImpl implements Subsc
                 ps.setInt(4, limit);
                 ps.setInt(5, offset);
                 try (ResultSet rs = ps.executeQuery()) {
+                    SubscriptionEntity subscriptionEntity;
                     while (rs.next()) {
-                        SubscriptionsDTO userSubscription;
-                        userSubscription = new SubscriptionsDTO();
-                        userSubscription.setName(rs.getString("USER_NAME"));
-                        userSubscription.setSubscribedBy(rs.getString("SUBSCRIBED_BY"));
-                        userSubscription.setSubscribedTimestamp(rs.getTimestamp("SUBSCRIBED_TIMESTAMP"));
-                        userSubscription.setUnsubscribed(rs.getBoolean("UNSUBSCRIBED"));
-                        userSubscription.setUnsubscribedBy(rs.getString("UNSUBSCRIBED_BY"));
-                        userSubscription.setUnsubscribedTimestamp(rs.getTimestamp("UNSUBSCRIBED_TIMESTAMP"));
-                        userSubscription.setAppReleaseId(rs.getInt("AP_APP_RELEASE_ID"));
-
-                        userSubscriptions.add(userSubscription);
+                        subscriptionEntity = new SubscriptionEntity();
+                        subscriptionEntity.setIdentity(rs.getString("USER_NAME"));
+                        subscriptionEntity.setSubscribedBy(rs.getString("SUBSCRIBED_BY"));
+                        subscriptionEntity.setSubscribedTimestamp(rs.getTimestamp("SUBSCRIBED_TIMESTAMP"));
+                        subscriptionEntity.setUnsubscribed(rs.getBoolean("UNSUBSCRIBED"));
+                        subscriptionEntity.setUnsubscribedBy(rs.getString("UNSUBSCRIBED_BY"));
+                        subscriptionEntity.setUnsubscribedTimestamp(rs.getTimestamp("UNSUBSCRIBED_TIMESTAMP"));
+                        subscriptionEntity.setApplicationReleaseId(rs.getInt("AP_APP_RELEASE_ID"));
+
+                        subscriptionEntities.add(subscriptionEntity);
                     }
                 }
-                return userSubscriptions;
+                return subscriptionEntities;
             }
         } catch (DBConnectionException e) {
             String msg = "Error occurred while obtaining the DB connection to get user subscriptions for the given UUID.";
@@ -1752,20 +1771,27 @@ public class GenericSubscriptionDAOImpl extends AbstractDAOImpl implements Subsc
     }
 
     @Override
-    public List<SubscriptionsDTO> getRoleSubscriptionsByAppReleaseID(int appReleaseId, boolean unsubscribe, int tenantId, int offset,
-                                                                        int limit) throws ApplicationManagementDAOException {
+    public List<SubscriptionEntity> getRoleSubscriptionsByAppReleaseID(int appReleaseId, boolean unsubscribe, int tenantId, int offset,
+                                                                       int limit) throws ApplicationManagementDAOException {
         if (log.isDebugEnabled()) {
             log.debug("Request received in DAO Layer to get role subscriptions related to the given AppReleaseID.");
         }
         try {
             Connection conn = this.getDBConnection();
-            List<SubscriptionsDTO>  roleSubscriptions = new ArrayList<>();
+            List<SubscriptionEntity> subscriptionEntities = new ArrayList<>();
 
             String subscriptionStatusTime = unsubscribe ? "ARS.UNSUBSCRIBED_TIMESTAMP" : "ARS.SUBSCRIBED_TIMESTAMP";
-            String sql = "SELECT ARS.ROLE_NAME, ARS.SUBSCRIBED_BY, ARS.SUBSCRIBED_TIMESTAMP, ARS.UNSUBSCRIBED, " +
-                    "ARS.UNSUBSCRIBED_BY, ARS.UNSUBSCRIBED_TIMESTAMP, ARS.AP_APP_RELEASE_ID " +
+            String sql = "SELECT ARS.ROLE_NAME, " +
+                    "ARS.SUBSCRIBED_BY, " +
+                    "ARS.SUBSCRIBED_TIMESTAMP, " +
+                    "ARS.UNSUBSCRIBED, " +
+                    "ARS.UNSUBSCRIBED_BY, " +
+                    "ARS.UNSUBSCRIBED_TIMESTAMP, " +
+                    "ARS.AP_APP_RELEASE_ID " +
                     "FROM AP_ROLE_SUBSCRIPTION ARS " +
-                    "WHERE ARS.AP_APP_RELEASE_ID = ? AND ARS.UNSUBSCRIBED = ? AND ARS.TENANT_ID = ? " +
+                    "WHERE ARS.AP_APP_RELEASE_ID = ? " +
+                    "AND ARS.UNSUBSCRIBED = ? " +
+                    "AND ARS.TENANT_ID = ? " +
                     "ORDER BY " + subscriptionStatusTime + " DESC " +
                     "LIMIT ? OFFSET ?";
             try (PreparedStatement ps = conn.prepareStatement(sql)) {
@@ -1775,21 +1801,21 @@ public class GenericSubscriptionDAOImpl extends AbstractDAOImpl implements Subsc
                 ps.setInt(4, limit);
                 ps.setInt(5, offset);
                 try (ResultSet rs = ps.executeQuery()) {
-                    SubscriptionsDTO roleSubscription;
+                    SubscriptionEntity subscriptionEntity;
                     while (rs.next()) {
-                        roleSubscription = new SubscriptionsDTO();
-                        roleSubscription.setName(rs.getString("ROLE_NAME"));
-                        roleSubscription.setSubscribedBy(rs.getString("SUBSCRIBED_BY"));
-                        roleSubscription.setSubscribedTimestamp(rs.getTimestamp("SUBSCRIBED_TIMESTAMP"));
-                        roleSubscription.setUnsubscribed(rs.getBoolean("UNSUBSCRIBED"));
-                        roleSubscription.setUnsubscribedBy(rs.getString("UNSUBSCRIBED_BY"));
-                        roleSubscription.setUnsubscribedTimestamp(rs.getTimestamp("UNSUBSCRIBED_TIMESTAMP"));
-                        roleSubscription.setAppReleaseId(rs.getInt("AP_APP_RELEASE_ID"));
-
-                        roleSubscriptions.add(roleSubscription);
+                        subscriptionEntity = new SubscriptionEntity();
+                        subscriptionEntity.setIdentity(rs.getString("ROLE_NAME"));
+                        subscriptionEntity.setSubscribedBy(rs.getString("SUBSCRIBED_BY"));
+                        subscriptionEntity.setSubscribedTimestamp(rs.getTimestamp("SUBSCRIBED_TIMESTAMP"));
+                        subscriptionEntity.setUnsubscribed(rs.getBoolean("UNSUBSCRIBED"));
+                        subscriptionEntity.setUnsubscribedBy(rs.getString("UNSUBSCRIBED_BY"));
+                        subscriptionEntity.setUnsubscribedTimestamp(rs.getTimestamp("UNSUBSCRIBED_TIMESTAMP"));
+                        subscriptionEntity.setApplicationReleaseId(rs.getInt("AP_APP_RELEASE_ID"));
+
+                        subscriptionEntities.add(subscriptionEntity);
                     }
                 }
-                return roleSubscriptions;
+                return subscriptionEntities;
             }
         } catch (DBConnectionException e) {
             String msg = "Error occurred while obtaining the DB connection to get role subscriptions for the given UUID.";
@@ -1918,14 +1944,20 @@ public class GenericSubscriptionDAOImpl extends AbstractDAOImpl implements Subsc
         }
     }
 
+    // passed the required list for the action status
     @Override
     public List<DeviceSubscriptionDTO> getSubscriptionDetailsByDeviceIds(int appReleaseId, boolean unsubscribe, int tenantId,
-                                                                         List<Integer> deviceIds, String actionStatus, String actionType,
-                                                                         String actionTriggeredBy, String tabActionStatus) throws ApplicationManagementDAOException {
+                                                                         List<Integer> deviceIds, List<String> actionStatus, String actionType,
+                                                                         String actionTriggeredBy, int limit, int offset) throws ApplicationManagementDAOException {
         if (log.isDebugEnabled()) {
             log.debug("Getting device subscriptions for the application release id " + appReleaseId
                     + " and device ids " + deviceIds + " from the database");
         }
+
+        if (deviceIds == null || deviceIds.isEmpty()) {
+            return Collections.emptyList();
+        }
+
         try {
             Connection conn = this.getDBConnection();
             String subscriptionStatusTime = unsubscribe ? "DS.UNSUBSCRIBED_TIMESTAMP" : "DS.SUBSCRIBED_TIMESTAMP";
@@ -1940,11 +1972,15 @@ public class GenericSubscriptionDAOImpl extends AbstractDAOImpl implements Subsc
                     + "DS.STATUS AS STATUS, "
                     + "DS.DM_DEVICE_ID AS DEVICE_ID "
                     + "FROM AP_DEVICE_SUBSCRIPTION DS "
-                    + "WHERE DS.AP_APP_RELEASE_ID = ? AND DS.UNSUBSCRIBED = ? AND DS.TENANT_ID = ? AND DS.DM_DEVICE_ID IN (" +
-                    deviceIds.stream().map(id -> "?").collect(Collectors.joining(",")) + ") ");
+                    + "WHERE DS.AP_APP_RELEASE_ID = ? "
+                    + "AND DS.UNSUBSCRIBED = ? "
+                    + "AND DS.TENANT_ID = ? "
+                    + "AND DS.DM_DEVICE_ID IN ("
+                    + deviceIds.stream().map(id -> "?").collect(Collectors.joining(",")) + ") ");
 
             if (actionStatus != null && !actionStatus.isEmpty()) {
-                sql.append(" AND DS.STATUS = ? ");
+                sql.append(" AND DS.STATUS IN (").
+                        append(actionStatus.stream().map(status -> "?").collect(Collectors.joining(","))).append(") ");
             }
             if (actionType != null && !actionType.isEmpty()) {
                 sql.append(" AND DS.ACTION_TRIGGERED_FROM = ? ");
@@ -1953,27 +1989,41 @@ public class GenericSubscriptionDAOImpl extends AbstractDAOImpl implements Subsc
                 sql.append(" AND DS.SUBSCRIBED_BY LIKE ? ");
             }
 
-            sql.append("ORDER BY ").append(subscriptionStatusTime).append(" DESC");
+            sql.append("ORDER BY ").append(subscriptionStatusTime).
+                    append(" DESC ");
+
+            if (offset >= 0 && limit >= 0) {
+                sql.append("LIMIT ? OFFSET ?");
+            }
 
             try (PreparedStatement ps = conn.prepareStatement(sql.toString())) {
                 int paramIdx = 1;
                 ps.setInt(paramIdx++, appReleaseId);
                 ps.setBoolean(paramIdx++, unsubscribe);
                 ps.setInt(paramIdx++, tenantId);
-                for (int i = 0; i < deviceIds.size(); i++) {
-                    ps.setInt(paramIdx++, deviceIds.get(i));
+                for (Integer deviceId : deviceIds) {
+                    ps.setInt(paramIdx++, deviceId);
                 }
 
                 if (actionStatus != null && !actionStatus.isEmpty()) {
-                    ps.setString(paramIdx++, actionStatus);
+                    for (String status : actionStatus) {
+                        ps.setString(paramIdx++, status);
+                    }
                 }
+
                 if (actionType != null && !actionType.isEmpty()) {
                     ps.setString(paramIdx++, actionType);
                 }
+
                 if (actionTriggeredBy != null && !actionTriggeredBy.isEmpty()) {
                     ps.setString(paramIdx++, "%" + actionTriggeredBy + "%");
                 }
 
+                if (offset >= 0 && limit >= 0) {
+                    ps.setInt(paramIdx++, limit);
+                    ps.setInt(paramIdx, offset);
+                }
+
                 try (ResultSet rs = ps.executeQuery()) {
                     if (log.isDebugEnabled()) {
                         log.debug("Successfully retrieved device subscriptions for application release id "
@@ -2010,9 +2060,178 @@ public class GenericSubscriptionDAOImpl extends AbstractDAOImpl implements Subsc
 
     }
 
+    @Override
+    public int getDeviceSubscriptionCount(int appReleaseId, boolean unsubscribe, int tenantId,
+                                          List<Integer> deviceIds, List<String> actionStatus, String actionType,
+                                          String actionTriggeredBy) throws ApplicationManagementDAOException {
+        int deviceCount = 0;
+
+        if (deviceIds == null || deviceIds.isEmpty()) return deviceCount;
+
+        try {
+            Connection conn = this.getDBConnection();
+            StringBuilder sql = new StringBuilder("SELECT COUNT(DISTINCT DS.DM_DEVICE_ID) AS COUNT "
+                    + "FROM AP_DEVICE_SUBSCRIPTION DS "
+                    + "WHERE DS.AP_APP_RELEASE_ID = ? "
+                    + "AND DS.UNSUBSCRIBED = ? "
+                    + "AND DS.TENANT_ID = ? "
+                    + "AND DS.DM_DEVICE_ID IN ("
+                    + deviceIds.stream().map(id -> "?").collect(Collectors.joining(",")) + ") ");
+
+            if (actionStatus != null && !actionStatus.isEmpty()) {
+                sql.append(" AND DS.STATUS IN (").
+                        append(actionStatus.stream().map(status -> "?").collect(Collectors.joining(","))).append(") ");
+            }
+
+            if (actionType != null && !actionType.isEmpty()) {
+                sql.append(" AND DS.ACTION_TRIGGERED_FROM = ? ");
+            }
+            if (actionTriggeredBy != null && !actionTriggeredBy.isEmpty()) {
+                sql.append(" AND DS.SUBSCRIBED_BY LIKE ?");
+            }
+
+            try (PreparedStatement ps = conn.prepareStatement(sql.toString())) {
+                int paramIdx = 1;
+                ps.setInt(paramIdx++, appReleaseId);
+                ps.setBoolean(paramIdx++, unsubscribe);
+                ps.setInt(paramIdx++, tenantId);
+                for (Integer deviceId : deviceIds) {
+                    ps.setInt(paramIdx++, deviceId);
+                }
+
+                if (actionStatus != null && !actionStatus.isEmpty()) {
+                    for (String status : actionStatus) {
+                        ps.setString(paramIdx++, status);
+                    }
+                }
+
+                if (actionType != null && !actionType.isEmpty()) {
+                    ps.setString(paramIdx++, actionType);
+                }
+
+                if (actionTriggeredBy != null && !actionTriggeredBy.isEmpty()) {
+                    ps.setString(paramIdx, "%" + actionTriggeredBy + "%");
+                }
+
+                try (ResultSet rs = ps.executeQuery()) {
+                    if (log.isDebugEnabled()) {
+                        log.debug("Successfully retrieved device subscriptions for application release id "
+                                + appReleaseId + " and device ids " + deviceIds);
+                    }
+                    if (rs.next()) {
+                        deviceCount = rs.getInt("COUNT");
+                    }
+                    return deviceCount;
+                }
+            } catch (SQLException e) {
+                String msg = "Error occurred while running SQL to get device subscription data for application ID: " + appReleaseId
+                        + " and device ids: " + deviceIds + ".";
+                log.error(msg, e);
+                throw new ApplicationManagementDAOException(msg, e);
+            }
+        } catch (DBConnectionException e) {
+            String msg = "Error occurred while obtaining the DB connection for getting device subscriptions for "
+                    + "application Id: " + appReleaseId + " and device ids: " + deviceIds + ".";
+            log.error(msg, e);
+            throw new ApplicationManagementDAOException(msg, e);
+        }
+    }
+
+//    @Override
+//    public List<DeviceSubscriptionDTO> getSubscriptionDetailsByDeviceIds(int appReleaseId, boolean unsubscribe, int tenantId,
+//                                                                         List<Integer> deviceIds, String actionStatus, String actionType,
+//                                                                         String actionTriggeredBy, String tabActionStatus) throws ApplicationManagementDAOException {
+//        if (log.isDebugEnabled()) {
+//            log.debug("Getting device subscriptions for the application release id " + appReleaseId
+//                    + " and device ids " + deviceIds + " from the database");
+//        }
+//        try {
+//            Connection conn = this.getDBConnection();
+//            String subscriptionStatusTime = unsubscribe ? "DS.UNSUBSCRIBED_TIMESTAMP" : "DS.SUBSCRIBED_TIMESTAMP";
+//            StringBuilder sql = new StringBuilder("SELECT "
+//                    + "DS.ID AS ID, "
+//                    + "DS.SUBSCRIBED_BY AS SUBSCRIBED_BY, "
+//                    + "DS.SUBSCRIBED_TIMESTAMP AS SUBSCRIBED_AT, "
+//                    + "DS.UNSUBSCRIBED AS IS_UNSUBSCRIBED, "
+//                    + "DS.UNSUBSCRIBED_BY AS UNSUBSCRIBED_BY, "
+//                    + "DS.UNSUBSCRIBED_TIMESTAMP AS UNSUBSCRIBED_AT, "
+//                    + "DS.ACTION_TRIGGERED_FROM AS ACTION_TRIGGERED_FROM, "
+//                    + "DS.STATUS AS STATUS, "
+//                    + "DS.DM_DEVICE_ID AS DEVICE_ID "
+//                    + "FROM AP_DEVICE_SUBSCRIPTION DS "
+//                    + "WHERE DS.AP_APP_RELEASE_ID = ? AND DS.UNSUBSCRIBED = ? AND DS.TENANT_ID = ? AND DS.DM_DEVICE_ID IN (" +
+//                    deviceIds.stream().map(id -> "?").collect(Collectors.joining(",")) + ") ");
+//
+//            if (actionStatus != null && !actionStatus.isEmpty()) {
+//                sql.append(" AND DS.STATUS = ? ");
+//            }
+//            if (actionType != null && !actionType.isEmpty()) {
+//                sql.append(" AND DS.ACTION_TRIGGERED_FROM = ? ");
+//            }
+//            if (actionTriggeredBy != null && !actionTriggeredBy.isEmpty()) {
+//                sql.append(" AND DS.SUBSCRIBED_BY LIKE ? ");
+//            }
+//
+//            sql.append("ORDER BY ").append(subscriptionStatusTime).append(" DESC");
+//
+//            try (PreparedStatement ps = conn.prepareStatement(sql.toString())) {
+//                int paramIdx = 1;
+//                ps.setInt(paramIdx++, appReleaseId);
+//                ps.setBoolean(paramIdx++, unsubscribe);
+//                ps.setInt(paramIdx++, tenantId);
+//                for (int i = 0; i < deviceIds.size(); i++) {
+//                    ps.setInt(paramIdx++, deviceIds.get(i));
+//                }
+//
+//                if (actionStatus != null && !actionStatus.isEmpty()) {
+//                    ps.setString(paramIdx++, actionStatus);
+//                }
+//                if (actionType != null && !actionType.isEmpty()) {
+//                    ps.setString(paramIdx++, actionType);
+//                }
+//                if (actionTriggeredBy != null && !actionTriggeredBy.isEmpty()) {
+//                    ps.setString(paramIdx++, "%" + actionTriggeredBy + "%");
+//                }
+//
+//                try (ResultSet rs = ps.executeQuery()) {
+//                    if (log.isDebugEnabled()) {
+//                        log.debug("Successfully retrieved device subscriptions for application release id "
+//                                + appReleaseId + " and device ids " + deviceIds);
+//                    }
+//                    List<DeviceSubscriptionDTO> subscriptions = new ArrayList<>();
+//                    while (rs.next()) {
+//                        DeviceSubscriptionDTO subscription = new DeviceSubscriptionDTO();
+//                        subscription.setId(rs.getInt("ID"));
+//                        subscription.setSubscribedBy(rs.getString("SUBSCRIBED_BY"));
+//                        subscription.setSubscribedTimestamp(rs.getTimestamp("SUBSCRIBED_AT"));
+//                        subscription.setUnsubscribed(rs.getBoolean("IS_UNSUBSCRIBED"));
+//                        subscription.setUnsubscribedBy(rs.getString("UNSUBSCRIBED_BY"));
+//                        subscription.setUnsubscribedTimestamp(rs.getTimestamp("UNSUBSCRIBED_AT"));
+//                        subscription.setActionTriggeredFrom(rs.getString("ACTION_TRIGGERED_FROM"));
+//                        subscription.setStatus(rs.getString("STATUS"));
+//                        subscription.setDeviceId(rs.getInt("DEVICE_ID"));
+//                        subscriptions.add(subscription);
+//                    }
+//                    return subscriptions;
+//                }
+//            } catch (SQLException e) {
+//                String msg = "Error occurred while running SQL to get device subscription data for application ID: " + appReleaseId
+//                        + " and device ids: " + deviceIds + ".";
+//                log.error(msg, e);
+//                throw new ApplicationManagementDAOException(msg, e);
+//            }
+//        } catch (DBConnectionException e) {
+//            String msg = "Error occurred while obtaining the DB connection for getting device subscriptions for "
+//                    + "application Id: " + appReleaseId + " and device ids: " + deviceIds + ".";
+//            log.error(msg, e);
+//            throw new ApplicationManagementDAOException(msg, e);
+//        }
+//
+//    }
+
     @Override
     public List<DeviceSubscriptionDTO> getAllSubscriptionsDetails(int appReleaseId, boolean unsubscribe, int tenantId,
-                                                                  String actionStatus, String actionType, String actionTriggeredBy,
+                                                                  List<String> actionStatus, String actionType, String actionTriggeredBy,
                                                                   int offset, int limit) throws ApplicationManagementDAOException {
         if (log.isDebugEnabled()) {
             log.debug("Getting device subscriptions for the application release id " + appReleaseId
@@ -2032,11 +2251,15 @@ public class GenericSubscriptionDAOImpl extends AbstractDAOImpl implements Subsc
                 + "DS.STATUS AS STATUS, "
                 + "DS.DM_DEVICE_ID AS DEVICE_ID "
                 + "FROM AP_DEVICE_SUBSCRIPTION DS "
-                + "WHERE DS.AP_APP_RELEASE_ID = ? AND DS.UNSUBSCRIBED = ? AND DS.TENANT_ID = ? ");
+                + "WHERE DS.AP_APP_RELEASE_ID = ? "
+                + "AND DS.UNSUBSCRIBED = ? "
+                + "AND DS.TENANT_ID = ? ");
 
         if (actionStatus != null && !actionStatus.isEmpty()) {
-            sql.append(" AND DS.STATUS = ? ");
+            sql.append(" AND DS.STATUS IN (").
+                    append(actionStatus.stream().map(status -> "?").collect(Collectors.joining(","))).append(") ");
         }
+
         if (actionType != null && !actionType.isEmpty()) {
             sql.append(" AND DS.ACTION_TRIGGERED_FROM = ? ");
         }
@@ -2044,8 +2267,11 @@ public class GenericSubscriptionDAOImpl extends AbstractDAOImpl implements Subsc
             sql.append(" AND ").append(actionTriggeredColumn).append(" LIKE ? ");
         }
 
-        sql.append("ORDER BY ").append(subscriptionStatusTime).append(" DESC ")
-                .append("LIMIT ? OFFSET ?");
+        sql.append("ORDER BY ").append(subscriptionStatusTime).append(" DESC ");
+
+        if (limit >= 0 && offset >= 0) {
+            sql.append("LIMIT ? OFFSET ?");
+        }
 
         try {
             Connection conn = this.getDBConnection();
@@ -2056,17 +2282,23 @@ public class GenericSubscriptionDAOImpl extends AbstractDAOImpl implements Subsc
                 ps.setInt(paramIdx++, tenantId);
 
                 if (actionStatus != null && !actionStatus.isEmpty()) {
-                    ps.setString(paramIdx++, actionStatus);
+                    for (String status : actionStatus) {
+                        ps.setString(paramIdx++, status);
+                    }
                 }
+
                 if (actionType != null && !actionType.isEmpty()) {
                     ps.setString(paramIdx++, actionType);
                 }
+
                 if (actionTriggeredBy != null && !actionTriggeredBy.isEmpty()) {
                     ps.setString(paramIdx++, "%" + actionTriggeredBy + "%");
                 }
 
-                ps.setInt(paramIdx++, limit);
-                ps.setInt(paramIdx++, offset);
+                if (limit >= 0 && offset >= 0) {
+                    ps.setInt(paramIdx++, limit);
+                    ps.setInt(paramIdx, offset);
+                }
 
                 try (ResultSet rs = ps.executeQuery()) {
                     if (log.isDebugEnabled()) {
@@ -2104,6 +2336,70 @@ public class GenericSubscriptionDAOImpl extends AbstractDAOImpl implements Subsc
         }
     }
 
+    @Override
+    public int getAllSubscriptionsCount(int appReleaseId, boolean unsubscribe, int tenantId,
+                                        List<String> actionStatus, String actionType, String actionTriggeredBy)
+            throws ApplicationManagementDAOException {
+        if (log.isDebugEnabled()) {
+            log.debug("Getting device subscriptions for the application release id " + appReleaseId
+                    + " from the database");
+        }
+        String actionTriggeredColumn = unsubscribe ? "DS.UNSUBSCRIBED_BY" : "DS.SUBSCRIBED_BY";
+        StringBuilder sql = new StringBuilder("SELECT COUNT(DISTINCT DS.DM_DEVICE_ID) AS COUNT "
+                + "FROM AP_DEVICE_SUBSCRIPTION DS "
+                + "WHERE DS.AP_APP_RELEASE_ID = ? "
+                + "AND DS.UNSUBSCRIBED = ? "
+                + "AND DS.TENANT_ID = ? ");
+
+        if (actionStatus != null && !actionStatus.isEmpty()) {
+            sql.append(" AND DS.STATUS IN (").
+                    append(actionStatus.stream().map(status -> "?").collect(Collectors.joining(","))).append(") ");
+        }
+        if (actionType != null && !actionType.isEmpty()) {
+            sql.append(" AND DS.ACTION_TRIGGERED_FROM = ? ");
+        }
+        if (actionTriggeredBy != null && !actionTriggeredBy.isEmpty()) {
+            sql.append(" AND ").append(actionTriggeredColumn).append(" LIKE ?");
+        }
+        try {
+            Connection conn = this.getDBConnection();
+            try (PreparedStatement ps = conn.prepareStatement(sql.toString())) {
+                int paramIdx = 1;
+                ps.setInt(paramIdx++, appReleaseId);
+                ps.setBoolean(paramIdx++, unsubscribe);
+                ps.setInt(paramIdx++, tenantId);
+
+                if (actionStatus != null && !actionStatus.isEmpty()) {
+                    for (String status : actionStatus) {
+                        ps.setString(paramIdx++, status);
+                    }
+                }
+                if (actionType != null && !actionType.isEmpty()) {
+                    ps.setString(paramIdx++, actionType);
+                }
+                if (actionTriggeredBy != null && !actionTriggeredBy.isEmpty()) {
+                    ps.setString(paramIdx++, "%" + actionTriggeredBy + "%");
+                }
+                try (ResultSet rs = ps.executeQuery()) {
+                    if (log.isDebugEnabled()) {
+                        log.debug("Successfully retrieved device subscriptions for application release id "
+                                + appReleaseId);
+                    }
+                    return rs.next() ? rs.getInt("COUNT") : 0;
+                }
+            }
+        } catch (DBConnectionException e) {
+            String msg = "Error occurred while obtaining the DB connection for getting device subscription for "
+                    + "application Id: " + appReleaseId + ".";
+            log.error(msg, e);
+            throw new ApplicationManagementDAOException(msg, e);
+        } catch (SQLException e) {
+            String msg = "Error occurred while running SQL to get device subscription data for application ID: " + appReleaseId;
+            log.error(msg, e);
+            throw new ApplicationManagementDAOException(msg, e);
+        }
+    }
+
     @Override
     public int getAllSubscriptionCount(int appReleaseId, int tenantId)
             throws ApplicationManagementDAOException {
@@ -2496,13 +2792,85 @@ public class GenericSubscriptionDAOImpl extends AbstractDAOImpl implements Subsc
         }
     }
 
+    // todo: fixed the status
+    @Override
+    public SubscriptionStatisticDTO getSubscriptionStatistic(List<Integer> deviceIds, String subscriptionType,
+                                                             boolean isUnsubscribed, int tenantId)
+            throws ApplicationManagementDAOException {
+        SubscriptionStatisticDTO subscriptionStatisticDTO = new SubscriptionStatisticDTO();
+        if (deviceIds == null || deviceIds.isEmpty()) return subscriptionStatisticDTO;
+
+        boolean doesAllEntriesRequired = true;
+        try {
+            Connection connection = getDBConnection();
+            String sql = "SELECT COUNT(DISTINCT ID) AS COUNT, " +
+                    "STATUS FROM AP_DEVICE_SUBSCRIPTION " +
+                    "WHERE TENANT_ID = ? " +
+                    "AND UNSUBSCRIBED = ?" +
+                    "AND DM_DEVICE_ID IN (" +
+                    deviceIds.stream().map(id -> "?").collect(Collectors.joining(",")) + ")";
+
+            if (!Objects.equals(subscriptionType, SubscriptionMetadata.SubscriptionTypes.DEVICE)) {
+                sql += " AND ACTION_TRIGGERED_FROM = ?";
+                doesAllEntriesRequired = false;
+            }
+
+            sql += " GROUP BY (STATUS)";
+
+            try (PreparedStatement preparedStatement = connection.prepareStatement(sql)) {
+                int idx = 1;
+
+                preparedStatement.setInt(idx++, tenantId);
+                preparedStatement.setBoolean(idx++, isUnsubscribed);
+                for (Integer deviceId : deviceIds) {
+                    preparedStatement.setInt(idx++, deviceId);
+                }
+
+                if (!doesAllEntriesRequired) {
+                    preparedStatement.setString(idx, subscriptionType);
+                }
+                try (ResultSet resultSet = preparedStatement.executeQuery()) {
+                    while (resultSet.next()) {
+                        // add the error and in progress
+                        int count = resultSet.getInt("COUNT");
+                        String status = resultSet.getString("STATUS");
+
+                        if (SubscriptionMetadata.DBSubscriptionStatus.COMPLETED_STATUS_LIST.contains(status)) {
+                            subscriptionStatisticDTO.addToComplete(count);
+                        }
+
+                        if (SubscriptionMetadata.DBSubscriptionStatus.PENDING_STATUS_LIST.contains(status)) {
+                            subscriptionStatisticDTO.addToPending(count);
+                        }
+                        if (SubscriptionMetadata.DBSubscriptionStatus.ERROR_STATUS_LIST.contains(status)) {
+                            subscriptionStatisticDTO.addToFailed(count);
+                        }
+                    }
+                }
+            }
+            return subscriptionStatisticDTO;
+        } catch (DBConnectionException e) {
+            String msg = "Error occurred while obtaining the DB connection for getting subscription statistics";
+            log.error(msg, e);
+            throw new ApplicationManagementDAOException(msg, e);
+        } catch (SQLException e) {
+            String msg = "Error occurred while running SQL for getting subscription statistics";
+            log.error(msg, e);
+            throw new ApplicationManagementDAOException(msg, e);
+        }
+    }
+
     public int countSubscriptionsByStatus(int appReleaseId, int tenantId, String actionStatus, String actionTriggeredFrom) throws ApplicationManagementDAOException {
         if (log.isDebugEnabled()) {
             log.debug("Request received in DAO Layer to count device subscriptions by status and actionTriggeredFrom for the given AppReleaseID.");
         }
         try {
             Connection conn = this.getDBConnection();
-            String sql = "SELECT COUNT(*) FROM AP_DEVICE_SUBSCRIPTION WHERE AP_APP_RELEASE_ID = ? AND TENANT_ID = ? AND STATUS = ? AND ACTION_TRIGGERED_FROM = ?";
+            String sql = "SELECT COUNT(*) FROM AP_DEVICE_SUBSCRIPTION " +
+             "WHERE AP_APP_RELEASE_ID = ? " +
+             "AND TENANT_ID = ? " +
+             "AND STATUS = ?" +
+             " AND ACTION_TRIGGERED_FROM = ?";
             try (PreparedStatement ps = conn.prepareStatement(sql)) {
                 ps.setInt(1, appReleaseId);
                 ps.setInt(2, tenantId);
@@ -2525,4 +2893,5 @@ public class GenericSubscriptionDAOImpl extends AbstractDAOImpl implements Subsc
         }
         return 0;
     }
+
 }

components/application-mgt/io.entgra.device.mgt.core.application.mgt.core/src/main/java/io/entgra/device/mgt/core/application/mgt/core/dao/impl/subscription/OracleSubscriptionDAOImpl.java

@@ -18,6 +18,8 @@
 
 package io.entgra.device.mgt.core.application.mgt.core.dao.impl.subscription;
 
+import io.entgra.device.mgt.core.application.mgt.common.SubscriptionEntity;
+import io.entgra.device.mgt.core.application.mgt.common.dto.DeviceSubscriptionDTO;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import io.entgra.device.mgt.core.application.mgt.common.exception.DBConnectionException;
@@ -28,7 +30,9 @@ import java.sql.PreparedStatement;
 import java.sql.ResultSet;
 import java.sql.SQLException;
 import java.util.ArrayList;
+import java.util.Collections;
 import java.util.List;
+import java.util.stream.Collectors;
 
 /**
  * This handles Application subscribing operations which are specific to Oracle.
@@ -157,4 +161,379 @@ public class OracleSubscriptionDAOImpl extends GenericSubscriptionDAOImpl {
             throw new ApplicationManagementDAOException(msg, e);
         }
     }
+
+    // passed the required list for the action status
+    @Override
+    public List<DeviceSubscriptionDTO> getSubscriptionDetailsByDeviceIds(int appReleaseId, boolean unsubscribe, int tenantId,
+                                                                         List<Integer> deviceIds, List<String> actionStatus, String actionType,
+                                                                         String actionTriggeredBy, int limit, int offset) throws ApplicationManagementDAOException {
+        if (log.isDebugEnabled()) {
+            log.debug("Getting device subscriptions for the application release id " + appReleaseId
+                    + " and device ids " + deviceIds + " from the database");
+        }
+        if (deviceIds == null || deviceIds.isEmpty()) {
+            return Collections.emptyList();
+        }
+        try {
+            Connection conn = this.getDBConnection();
+            String subscriptionStatusTime = unsubscribe ? "DS.UNSUBSCRIBED_TIMESTAMP" : "DS.SUBSCRIBED_TIMESTAMP";
+            StringBuilder sql = new StringBuilder("SELECT "
+                    + "DS.ID AS ID, "
+                    + "DS.SUBSCRIBED_BY AS SUBSCRIBED_BY, "
+                    + "DS.SUBSCRIBED_TIMESTAMP AS SUBSCRIBED_AT, "
+                    + "DS.UNSUBSCRIBED AS IS_UNSUBSCRIBED, "
+                    + "DS.UNSUBSCRIBED_BY AS UNSUBSCRIBED_BY, "
+                    + "DS.UNSUBSCRIBED_TIMESTAMP AS UNSUBSCRIBED_AT, "
+                    + "DS.ACTION_TRIGGERED_FROM AS ACTION_TRIGGERED_FROM, "
+                    + "DS.STATUS AS STATUS, "
+                    + "DS.DM_DEVICE_ID AS DEVICE_ID "
+                    + "FROM AP_DEVICE_SUBSCRIPTION DS "
+                    + "WHERE DS.AP_APP_RELEASE_ID = ? "
+                    + "AND DS.UNSUBSCRIBED = ? "
+                    + "AND DS.TENANT_ID = ? "
+                    + "AND DS.DM_DEVICE_ID IN ("
+                    + deviceIds.stream().map(id -> "?").collect(Collectors.joining(",")) + ") ");
+            if (actionStatus != null && !actionStatus.isEmpty()) {
+                sql.append(" AND DS.STATUS IN (").
+                        append(actionStatus.stream().map(status -> "?").collect(Collectors.joining(","))).append(") ");
+            }
+            if (actionType != null && !actionType.isEmpty()) {
+                sql.append(" AND DS.ACTION_TRIGGERED_FROM = ? ");
+            }
+            if (actionTriggeredBy != null && !actionTriggeredBy.isEmpty()) {
+                sql.append(" AND DS.SUBSCRIBED_BY LIKE ? ");
+            }
+            sql.append("ORDER BY ").append(subscriptionStatusTime).
+                    append(" DESC ");
+            if (offset >= 0 && limit >= 0) {
+                sql.append("OFFSET ? ROWS FETCH NEXT ? ROWS ONLY");
+            }
+            try (PreparedStatement ps = conn.prepareStatement(sql.toString())) {
+                int paramIdx = 1;
+                ps.setInt(paramIdx++, appReleaseId);
+                ps.setBoolean(paramIdx++, unsubscribe);
+                ps.setInt(paramIdx++, tenantId);
+                for (Integer deviceId : deviceIds) {
+                    ps.setInt(paramIdx++, deviceId);
+                }
+                if (actionStatus != null && !actionStatus.isEmpty()) {
+                    for (String status : actionStatus) {
+                        ps.setString(paramIdx++, status);
+                    }
+                }
+                if (actionType != null && !actionType.isEmpty()) {
+                    ps.setString(paramIdx++, actionType);
+                }
+                if (actionTriggeredBy != null && !actionTriggeredBy.isEmpty()) {
+                    ps.setString(paramIdx++, "%" + actionTriggeredBy + "%");
+                }
+                if (offset >= 0 && limit >= 0) {
+                    ps.setInt(paramIdx++, offset);
+                    ps.setInt(paramIdx, limit);
+                }
+                try (ResultSet rs = ps.executeQuery()) {
+                    if (log.isDebugEnabled()) {
+                        log.debug("Successfully retrieved device subscriptions for application release id "
+                                + appReleaseId + " and device ids " + deviceIds);
+                    }
+                    List<DeviceSubscriptionDTO> subscriptions = new ArrayList<>();
+                    while (rs.next()) {
+                        DeviceSubscriptionDTO subscription = new DeviceSubscriptionDTO();
+                        subscription.setId(rs.getInt("ID"));
+                        subscription.setSubscribedBy(rs.getString("SUBSCRIBED_BY"));
+                        subscription.setSubscribedTimestamp(rs.getTimestamp("SUBSCRIBED_AT"));
+                        subscription.setUnsubscribed(rs.getBoolean("IS_UNSUBSCRIBED"));
+                        subscription.setUnsubscribedBy(rs.getString("UNSUBSCRIBED_BY"));
+                        subscription.setUnsubscribedTimestamp(rs.getTimestamp("UNSUBSCRIBED_AT"));
+                        subscription.setActionTriggeredFrom(rs.getString("ACTION_TRIGGERED_FROM"));
+                        subscription.setStatus(rs.getString("STATUS"));
+                        subscription.setDeviceId(rs.getInt("DEVICE_ID"));
+                        subscriptions.add(subscription);
+                    }
+                    return subscriptions;
+                }
+            } catch (SQLException e) {
+                String msg = "Error occurred while running SQL to get device subscription data for application ID: " + appReleaseId
+                        + " and device ids: " + deviceIds + ".";
+                log.error(msg, e);
+                throw new ApplicationManagementDAOException(msg, e);
+            }
+        } catch (DBConnectionException e) {
+            String msg = "Error occurred while obtaining the DB connection for getting device subscriptions for "
+                    + "application Id: " + appReleaseId + " and device ids: " + deviceIds + ".";
+            log.error(msg, e);
+            throw new ApplicationManagementDAOException(msg, e);
+        }
+    }
+
+    @Override
+    public List<SubscriptionEntity> getRoleSubscriptionsByAppReleaseID(int appReleaseId, boolean unsubscribe, int tenantId, int offset,
+                                                                       int limit) throws ApplicationManagementDAOException {
+        if (log.isDebugEnabled()) {
+            log.debug("Request received in DAO Layer to get role subscriptions related to the given AppReleaseID.");
+        }
+        try {
+            Connection conn = this.getDBConnection();
+            List<SubscriptionEntity> subscriptionEntities = new ArrayList<>();
+
+            String subscriptionStatusTime = unsubscribe ? "ARS.UNSUBSCRIBED_TIMESTAMP" : "ARS.SUBSCRIBED_TIMESTAMP";
+            String sql = "SELECT ARS.ROLE_NAME, " +
+                    "ARS.SUBSCRIBED_BY, " +
+                    "ARS.SUBSCRIBED_TIMESTAMP, " +
+                    "ARS.UNSUBSCRIBED, " +
+                    "ARS.UNSUBSCRIBED_BY, " +
+                    "ARS.UNSUBSCRIBED_TIMESTAMP, " +
+                    "ARS.AP_APP_RELEASE_ID " +
+                    "FROM AP_ROLE_SUBSCRIPTION ARS " +
+                    "WHERE ARS.AP_APP_RELEASE_ID = ? " +
+                    "AND ARS.UNSUBSCRIBED = ? " +
+                    "AND ARS.TENANT_ID = ? " +
+                    "ORDER BY " + subscriptionStatusTime + " DESC " +
+                    "OFFSET ? ROWS FETCH NEXT ? ROWS ONLY";
+
+            try (PreparedStatement ps = conn.prepareStatement(sql)) {
+                ps.setInt(1, appReleaseId);
+                ps.setBoolean(2, unsubscribe);
+                ps.setInt(3, tenantId);
+                ps.setInt(4, offset);
+                ps.setInt(5, limit);
+                try (ResultSet rs = ps.executeQuery()) {
+                    SubscriptionEntity subscriptionEntity;
+                    while (rs.next()) {
+                        subscriptionEntity = new SubscriptionEntity();
+                        subscriptionEntity.setIdentity(rs.getString("ROLE_NAME"));
+                        subscriptionEntity.setSubscribedBy(rs.getString("SUBSCRIBED_BY"));
+                        subscriptionEntity.setSubscribedTimestamp(rs.getTimestamp("SUBSCRIBED_TIMESTAMP"));
+                        subscriptionEntity.setUnsubscribed(rs.getBoolean("UNSUBSCRIBED"));
+                        subscriptionEntity.setUnsubscribedBy(rs.getString("UNSUBSCRIBED_BY"));
+                        subscriptionEntity.setUnsubscribedTimestamp(rs.getTimestamp("UNSUBSCRIBED_TIMESTAMP"));
+                        subscriptionEntity.setApplicationReleaseId(rs.getInt("AP_APP_RELEASE_ID"));
+
+                        subscriptionEntities.add(subscriptionEntity);
+                    }
+                }
+                return subscriptionEntities;
+            }
+        } catch (DBConnectionException e) {
+            String msg = "Error occurred while obtaining the DB connection to get role subscriptions for the given UUID.";
+            log.error(msg, e);
+            throw new ApplicationManagementDAOException(msg, e);
+        } catch (SQLException e) {
+            String msg = "SQL Error occurred while getting role subscriptions for the given UUID.";
+            log.error(msg, e);
+            throw new ApplicationManagementDAOException(msg, e);
+        }
+    }
+
+    @Override
+    public List<SubscriptionEntity> getUserSubscriptionsByAppReleaseID(int appReleaseId, boolean unsubscribe, int tenantId,
+                                                                       int offset, int limit) throws ApplicationManagementDAOException {
+        if (log.isDebugEnabled()) {
+            log.debug("Request received in DAO Layer to get user subscriptions related to the given UUID.");
+        }
+        try {
+            Connection conn = this.getDBConnection();
+            List<SubscriptionEntity> subscriptionEntities = new ArrayList<>();
+
+            String subscriptionStatusTime = unsubscribe ? "US.UNSUBSCRIBED_TIMESTAMP" : "US.SUBSCRIBED_TIMESTAMP";
+            String sql = "SELECT US.USER_NAME, " +
+                    "US.SUBSCRIBED_BY, " +
+                    "US.SUBSCRIBED_TIMESTAMP, " +
+                    "US.UNSUBSCRIBED, " +
+                    "US.UNSUBSCRIBED_BY, " +
+                    "US.UNSUBSCRIBED_TIMESTAMP, " +
+                    "US.AP_APP_RELEASE_ID " +
+                    "FROM AP_USER_SUBSCRIPTION US " +
+                    "WHERE US.AP_APP_RELEASE_ID = ? " +
+                    "AND US.UNSUBSCRIBED = ? " +
+                    "AND US.TENANT_ID = ? " +
+                    "ORDER BY " + subscriptionStatusTime + " DESC " +
+                    "OFFSET ? ROWS FETCH NEXT ? ROWS ONLY";
+
+            try (PreparedStatement ps = conn.prepareStatement(sql)) {
+                ps.setInt(1, appReleaseId);
+                ps.setBoolean(2, unsubscribe);
+                ps.setInt(3, tenantId);
+                ps.setInt(4, offset);
+                ps.setInt(5, limit);
+                try (ResultSet rs = ps.executeQuery()) {
+                    SubscriptionEntity subscriptionEntity;
+                    while (rs.next()) {
+                        subscriptionEntity = new SubscriptionEntity();
+                        subscriptionEntity.setIdentity(rs.getString("USER_NAME"));
+                        subscriptionEntity.setSubscribedBy(rs.getString("SUBSCRIBED_BY"));
+                        subscriptionEntity.setSubscribedTimestamp(rs.getTimestamp("SUBSCRIBED_TIMESTAMP"));
+                        subscriptionEntity.setUnsubscribed(rs.getBoolean("UNSUBSCRIBED"));
+                        subscriptionEntity.setUnsubscribedBy(rs.getString("UNSUBSCRIBED_BY"));
+                        subscriptionEntity.setUnsubscribedTimestamp(rs.getTimestamp("UNSUBSCRIBED_TIMESTAMP"));
+                        subscriptionEntity.setApplicationReleaseId(rs.getInt("AP_APP_RELEASE_ID"));
+
+                        subscriptionEntities.add(subscriptionEntity);
+                    }
+                }
+                return subscriptionEntities;
+            }
+        } catch (DBConnectionException e) {
+            String msg = "Error occurred while obtaining the DB connection to get user subscriptions for the given UUID.";
+            log.error(msg, e);
+            throw new ApplicationManagementDAOException(msg, e);
+        } catch (SQLException e) {
+            String msg = "SQL Error occurred while getting user subscriptions for the given UUID.";
+            log.error(msg, e);
+            throw new ApplicationManagementDAOException(msg, e);
+        }
+    }
+
+    @Override
+    public List<SubscriptionEntity> getGroupsSubscriptionDetailsByAppReleaseID(int appReleaseId, boolean unsubscribe, int tenantId, int offset, int limit)
+            throws ApplicationManagementDAOException {
+        if (log.isDebugEnabled()) {
+            log.debug("Request received in DAO Layer to get groups related to the given AppReleaseID.");
+        }
+        try {
+            Connection conn = this.getDBConnection();
+            List<SubscriptionEntity> subscriptionEntities = new ArrayList<>();
+
+            String subscriptionStatusTime = unsubscribe ? "GS.UNSUBSCRIBED_TIMESTAMP" : "GS.SUBSCRIBED_TIMESTAMP";
+            String sql = "SELECT GS.GROUP_NAME, " +
+                    "GS.SUBSCRIBED_BY, " +
+                    "GS.SUBSCRIBED_TIMESTAMP, " +
+                    "GS.UNSUBSCRIBED, " +
+                    "GS.UNSUBSCRIBED_BY, " +
+                    "GS.UNSUBSCRIBED_TIMESTAMP, " +
+                    "GS.AP_APP_RELEASE_ID " +
+                    "FROM AP_GROUP_SUBSCRIPTION GS " +
+                    "WHERE GS.AP_APP_RELEASE_ID = ? " +
+                    "AND GS.UNSUBSCRIBED = ? AND GS.TENANT_ID = ? " +
+                    "ORDER BY " + subscriptionStatusTime + " DESC " +
+                    "OFFSET ? ROWS FETCH NEXT ? ROWS ONLY";
+
+            try (PreparedStatement ps = conn.prepareStatement(sql)) {
+                ps.setInt(1, appReleaseId);
+                ps.setBoolean(2, unsubscribe);
+                ps.setInt(3, tenantId);
+                ps.setInt(4, offset);
+                ps.setInt(5, limit);
+
+                try (ResultSet rs = ps.executeQuery()) {
+                    SubscriptionEntity subscriptionEntity;
+                    while (rs.next()) {
+                        subscriptionEntity = new SubscriptionEntity();
+                        subscriptionEntity.setIdentity(rs.getString("GROUP_NAME"));
+                        subscriptionEntity.setSubscribedBy(rs.getString("SUBSCRIBED_BY"));
+                        subscriptionEntity.setSubscribedTimestamp(rs.getTimestamp("SUBSCRIBED_TIMESTAMP"));
+                        subscriptionEntity.setUnsubscribed(rs.getBoolean("UNSUBSCRIBED"));
+                        subscriptionEntity.setUnsubscribedBy(rs.getString("UNSUBSCRIBED_BY"));
+                        subscriptionEntity.setUnsubscribedTimestamp(rs.getTimestamp("UNSUBSCRIBED_TIMESTAMP"));
+                        subscriptionEntity.setApplicationReleaseId(rs.getInt("AP_APP_RELEASE_ID"));
+
+                        subscriptionEntities.add(subscriptionEntity);
+                    }
+                }
+                return subscriptionEntities;
+            }
+        } catch (DBConnectionException e) {
+            String msg = "Error occurred while obtaining the DB connection to get groups for the given UUID.";
+            log.error(msg, e);
+            throw new ApplicationManagementDAOException(msg, e);
+        } catch (SQLException e) {
+            String msg = "SQL Error occurred while getting groups for the given UUID.";
+            log.error(msg, e);
+            throw new ApplicationManagementDAOException(msg, e);
+        }
+    }
+
+    @Override
+    public List<DeviceSubscriptionDTO> getAllSubscriptionsDetails(int appReleaseId, boolean unsubscribe, int tenantId,
+                                                                  List<String> actionStatus, String actionType, String actionTriggeredBy,
+                                                                  int offset, int limit) throws ApplicationManagementDAOException {
+        if (log.isDebugEnabled()) {
+            log.debug("Getting device subscriptions for the application release id " + appReleaseId + " from the database");
+        }
+        String subscriptionStatusTime = unsubscribe ? "DS.UNSUBSCRIBED_TIMESTAMP" : "DS.SUBSCRIBED_TIMESTAMP";
+        String actionTriggeredColumn = unsubscribe ? "DS.UNSUBSCRIBED_BY" : "DS.SUBSCRIBED_BY";
+        StringBuilder sql = new StringBuilder("SELECT "
+                + "DS.ID AS ID, "
+                + "DS.SUBSCRIBED_BY AS SUBSCRIBED_BY, "
+                + "DS.SUBSCRIBED_TIMESTAMP AS SUBSCRIBED_AT, "
+                + "DS.UNSUBSCRIBED AS IS_UNSUBSCRIBED, "
+                + "DS.UNSUBSCRIBED_BY AS UNSUBSCRIBED_BY, "
+                + "DS.UNSUBSCRIBED_TIMESTAMP AS UNSUBSCRIBED_AT, "
+                + "DS.ACTION_TRIGGERED_FROM AS ACTION_TRIGGERED_FROM, "
+                + "DS.STATUS AS STATUS, "
+                + "DS.DM_DEVICE_ID AS DEVICE_ID "
+                + "FROM AP_DEVICE_SUBSCRIPTION DS "
+                + "WHERE DS.AP_APP_RELEASE_ID = ? "
+                + "AND DS.UNSUBSCRIBED = ? "
+                + "AND DS.TENANT_ID = ? ");
+        if (actionStatus != null && !actionStatus.isEmpty()) {
+            sql.append(" AND DS.STATUS IN (")
+                    .append(actionStatus.stream().map(status -> "?").collect(Collectors.joining(","))).append(") ");
+        }
+        if (actionType != null && !actionType.isEmpty()) {
+            sql.append(" AND DS.ACTION_TRIGGERED_FROM = ? ");
+        }
+        if (actionTriggeredBy != null && !actionTriggeredBy.isEmpty()) {
+            sql.append(" AND ").append(actionTriggeredColumn).append(" LIKE ? ");
+        }
+        sql.append("ORDER BY ").append(subscriptionStatusTime).append(" DESC ");
+        if (limit >= 0 && offset >= 0) {
+            sql.append("OFFSET ? ROWS FETCH NEXT ? ROWS ONLY");
+        }
+        try {
+            Connection conn = this.getDBConnection();
+            try (PreparedStatement ps = conn.prepareStatement(sql.toString())) {
+                int paramIdx = 1;
+                ps.setInt(paramIdx++, appReleaseId);
+                ps.setBoolean(paramIdx++, unsubscribe);
+                ps.setInt(paramIdx++, tenantId);
+                if (actionStatus != null && !actionStatus.isEmpty()) {
+                    for (String status : actionStatus) {
+                        ps.setString(paramIdx++, status);
+                    }
+                }
+                if (actionType != null && !actionType.isEmpty()) {
+                    ps.setString(paramIdx++, actionType);
+                }
+                if (actionTriggeredBy != null && !actionTriggeredBy.isEmpty()) {
+                    ps.setString(paramIdx++, "%" + actionTriggeredBy + "%");
+                }
+                if (limit >= 0 && offset >= 0) {
+                    ps.setInt(paramIdx++, offset);
+                    ps.setInt(paramIdx, limit);
+                }
+                try (ResultSet rs = ps.executeQuery()) {
+                    if (log.isDebugEnabled()) {
+                        log.debug("Successfully retrieved device subscriptions for application release id "
+                                + appReleaseId);
+                    }
+                    List<DeviceSubscriptionDTO> deviceSubscriptions = new ArrayList<>();
+                    while (rs.next()) {
+                        DeviceSubscriptionDTO subscription = new DeviceSubscriptionDTO();
+                        subscription.setId(rs.getInt("ID"));
+                        subscription.setSubscribedBy(rs.getString("SUBSCRIBED_BY"));
+                        subscription.setSubscribedTimestamp(rs.getTimestamp("SUBSCRIBED_AT"));
+                        subscription.setUnsubscribed(rs.getBoolean("IS_UNSUBSCRIBED"));
+                        subscription.setUnsubscribedBy(rs.getString("UNSUBSCRIBED_BY"));
+                        subscription.setUnsubscribedTimestamp(rs.getTimestamp("UNSUBSCRIBED_AT"));
+                        subscription.setActionTriggeredFrom(rs.getString("ACTION_TRIGGERED_FROM"));
+                        subscription.setStatus(rs.getString("STATUS"));
+                        subscription.setDeviceId(rs.getInt("DEVICE_ID"));
+
+                        deviceSubscriptions.add(subscription);
+                    }
+                    return deviceSubscriptions;
+                }
+            }
+        } catch (DBConnectionException e) {
+            String msg = "Error occurred while obtaining the DB connection for getting device subscription for application Id: "
+                    + appReleaseId + ".";
+            log.error(msg, e);
+            throw new ApplicationManagementDAOException(msg, e);
+        } catch (SQLException e) {
+            String msg = "Error occurred while running SQL to get device subscription data for application ID: " + appReleaseId;
+            log.error(msg, e);
+            throw new ApplicationManagementDAOException(msg, e);
+        }
+    }
 }

components/application-mgt/io.entgra.device.mgt.core.application.mgt.core/src/main/java/io/entgra/device/mgt/core/application/mgt/core/util/SubscriptionManagementUtil.java

@@ -0,0 +1,29 @@
+/*
+ *  Copyright (c) 2018 - 2024, Entgra (Pvt) Ltd. (http://www.entgra.io) All Rights Reserved.
+ *
+ * Entgra (Pvt) Ltd. licenses this file to you under the Apache License,
+ * Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ *
+ */
+
+package io.entgra.device.mgt.core.application.mgt.core.util;
+
+public class SubscriptionManagementUtil {
+    public static final class DeviceSubscriptionStatus {
+        public static final String COMPLETED = "COMPLETED";
+        public static final String ERROR ="ERROR";
+        public static final String NEW = "NEW";
+        public static final String SUBSCRIBED = "SUBSCRIBED";
+    }
+}

components/application-mgt/io.entgra.device.mgt.core.application.mgt.core/src/main/java/io/entgra/device/mgt/core/application/mgt/core/util/subscription/mgt/SubscriptionManagementHelperUtil.java

@@ -0,0 +1,207 @@
+/*
+ *  Copyright (c) 2018 - 2024, Entgra (Pvt) Ltd. (http://www.entgra.io) All Rights Reserved.
+ *
+ * Entgra (Pvt) Ltd. licenses this file to you under the Apache License,
+ * Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ *
+ */
+
+package io.entgra.device.mgt.core.application.mgt.core.util.subscription.mgt;
+
+import io.entgra.device.mgt.core.application.mgt.common.DeviceSubscription;
+import io.entgra.device.mgt.core.application.mgt.common.DeviceSubscriptionFilterCriteria;
+import io.entgra.device.mgt.core.application.mgt.common.SubscriptionData;
+import io.entgra.device.mgt.core.application.mgt.common.SubscriptionInfo;
+import io.entgra.device.mgt.core.application.mgt.common.SubscriptionMetadata;
+import io.entgra.device.mgt.core.application.mgt.common.SubscriptionStatistics;
+import io.entgra.device.mgt.core.application.mgt.common.dto.DeviceSubscriptionDTO;
+import io.entgra.device.mgt.core.application.mgt.common.dto.SubscriptionStatisticDTO;
+import io.entgra.device.mgt.core.application.mgt.core.util.HelperUtil;
+import io.entgra.device.mgt.core.device.mgt.common.Device;
+import io.entgra.device.mgt.core.device.mgt.common.PaginationRequest;
+import io.entgra.device.mgt.core.device.mgt.common.exceptions.DeviceManagementException;
+
+import java.sql.Timestamp;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.stream.Collectors;
+
+public class SubscriptionManagementHelperUtil {
+
+    /**
+     * Retrieves device subscription data based on the provided filters.
+     *
+     * @param deviceSubscriptionDTOS List of DeviceSubscriptionDTO objects.
+     * @param deviceSubscriptionFilterCriteria Filter criteria for device subscription.
+     * @param isUnsubscribed Boolean indicating whether to filter unsubscribed devices.
+     * @param deviceTypeId Device type ID.
+     * @param limit Limit for pagination.
+     * @param offset Offset for pagination.
+     * @return List of DeviceSubscription objects.
+     * @throws DeviceManagementException If an error occurs during device management.
+     */
+    public static List<DeviceSubscription> getDeviceSubscriptionData(List<DeviceSubscriptionDTO> deviceSubscriptionDTOS,
+                                                                     DeviceSubscriptionFilterCriteria deviceSubscriptionFilterCriteria,
+                                                                     boolean isUnsubscribed, int deviceTypeId, int limit, int offset)
+            throws DeviceManagementException {
+        List<Integer> deviceIds = deviceSubscriptionDTOS.stream().map(DeviceSubscriptionDTO::getDeviceId).collect(Collectors.toList());
+        PaginationRequest paginationRequest = new PaginationRequest(offset, limit);
+        paginationRequest.setDeviceName(deviceSubscriptionFilterCriteria.getName());
+        paginationRequest.setDeviceStatus(deviceSubscriptionFilterCriteria.getDeviceStatus());
+        paginationRequest.setOwner(deviceSubscriptionFilterCriteria.getOwner());
+        paginationRequest.setDeviceTypeId(deviceTypeId);
+        List<Device> devices = HelperUtil.getDeviceManagementProviderService().getDevicesByDeviceIds(paginationRequest, deviceIds);
+        return populateDeviceData(deviceSubscriptionDTOS, devices, isUnsubscribed);
+    }
+
+    /**
+     * Retrieves the total count of device subscriptions based on the provided filters.
+     *
+     * @param deviceSubscriptionDTOS List of DeviceSubscriptionDTO objects.
+     * @param deviceSubscriptionFilterCriteria Filter criteria for device subscription.
+     * @param deviceTypeId Device type ID.
+     * @return int Total count of device subscriptions.
+     * @throws DeviceManagementException If an error occurs during device management.
+     */
+    public static int getTotalDeviceSubscriptionCount(List<DeviceSubscriptionDTO> deviceSubscriptionDTOS,
+                                                      DeviceSubscriptionFilterCriteria deviceSubscriptionFilterCriteria, int deviceTypeId)
+            throws DeviceManagementException {
+        List<Integer> deviceIds = deviceSubscriptionDTOS.stream().map(DeviceSubscriptionDTO::getDeviceId).collect(Collectors.toList());
+        PaginationRequest paginationRequest = new PaginationRequest(-1, -1);
+        paginationRequest.setDeviceName(deviceSubscriptionFilterCriteria.getName());
+        paginationRequest.setDeviceStatus(deviceSubscriptionFilterCriteria.getDeviceStatus());
+        paginationRequest.setOwner(deviceSubscriptionFilterCriteria.getOwner());
+        paginationRequest.setDeviceTypeId(deviceTypeId);
+        return HelperUtil.getDeviceManagementProviderService().getDeviceCountByDeviceIds(paginationRequest, deviceIds);
+    }
+
+    /**
+     * Populates device subscription data based on the provided devices and subscription DTOs.
+     *
+     * @param deviceSubscriptionDTOS List of DeviceSubscriptionDTO objects.
+     * @param devices List of Device objects.
+     * @param isUnsubscribed Boolean indicating whether to filter unsubscribed devices.
+     * @return List of DeviceSubscription objects.
+     */
+    private static List<DeviceSubscription> populateDeviceData(List<DeviceSubscriptionDTO> deviceSubscriptionDTOS,
+                                                               List<Device> devices, boolean isUnsubscribed) {
+        List<DeviceSubscription> deviceSubscriptions = new ArrayList<>();
+        for (Device device : devices) {
+            int idx = deviceSubscriptionDTOS.indexOf(new DeviceSubscriptionDTO(device.getId()));
+            if (idx >= 0) {
+                DeviceSubscriptionDTO deviceSubscriptionDTO = deviceSubscriptionDTOS.get(idx);
+                DeviceSubscription deviceSubscription = new DeviceSubscription();
+                deviceSubscription.setDeviceId(device.getId());
+                deviceSubscription.setDeviceIdentifier(device.getDeviceIdentifier());
+                deviceSubscription.setDeviceOwner(device.getEnrolmentInfo().getOwner());
+                deviceSubscription.setDeviceType(device.getType());
+                deviceSubscription.setDeviceName(device.getName());
+                deviceSubscription.setDeviceStatus(device.getEnrolmentInfo().getStatus().name());
+                deviceSubscription.setOwnershipType(device.getEnrolmentInfo().getOwnership().name());
+                deviceSubscription.setDateOfLastUpdate(new Timestamp(device.getEnrolmentInfo().getDateOfLastUpdate()));
+                SubscriptionData subscriptionData = getSubscriptionData(isUnsubscribed, deviceSubscriptionDTO);
+                deviceSubscription.setSubscriptionData(subscriptionData);
+                deviceSubscriptions.add(deviceSubscription);
+            }
+        }
+        return deviceSubscriptions;
+    }
+
+    /**
+     * Creates a SubscriptionData object based on the provided subscription DTO.
+     *
+     * @param isUnsubscribed Boolean indicating whether to filter unsubscribed devices.
+     * @param deviceSubscriptionDTO DeviceSubscriptionDTO object.
+     * @return SubscriptionData object.
+     */
+    private static SubscriptionData getSubscriptionData(boolean isUnsubscribed, DeviceSubscriptionDTO deviceSubscriptionDTO) {
+        SubscriptionData subscriptionData = new SubscriptionData();
+        subscriptionData.setTriggeredBy(isUnsubscribed ? deviceSubscriptionDTO.getUnsubscribedBy() :
+                deviceSubscriptionDTO.getSubscribedBy());
+        subscriptionData.setTriggeredAt(deviceSubscriptionDTO.getSubscribedTimestamp());
+        subscriptionData.setDeviceSubscriptionStatus(deviceSubscriptionDTO.getStatus());
+        subscriptionData.setSubscriptionType(deviceSubscriptionDTO.getActionTriggeredFrom());
+        subscriptionData.setSubscriptionId(deviceSubscriptionDTO.getId());
+        return subscriptionData;
+    }
+
+    /**
+     * Retrieves the device subscription status based on the provided subscription info.
+     *
+     * @param subscriptionInfo SubscriptionInfo object.
+     * @return Device subscription status.
+     */
+    public static String getDeviceSubscriptionStatus(SubscriptionInfo subscriptionInfo) {
+        return getDeviceSubscriptionStatus(subscriptionInfo.getDeviceSubscriptionFilterCriteria().
+                getFilteringDeviceSubscriptionStatus(), subscriptionInfo.getDeviceSubscriptionStatus());
+    }
+
+    /**
+     * Retrieves the device subscription status based on the provided filter and status.
+     *
+     * @param deviceSubscriptionStatusFilter Filtered device subscription status.
+     * @param deviceSubscriptionStatus Device subscription status.
+     * @return Device subscription status.
+     */
+    public static String getDeviceSubscriptionStatus(String deviceSubscriptionStatusFilter, String deviceSubscriptionStatus) {
+        return (deviceSubscriptionStatusFilter != null && !deviceSubscriptionStatusFilter.isEmpty()) ?
+                deviceSubscriptionStatusFilter : deviceSubscriptionStatus;
+    }
+
+    /**
+     * Retrieves subscription statistics based on the provided subscription statistics DTO and device count.
+     *
+     * @param subscriptionStatisticDTO SubscriptionStatisticDTO object.
+     * @param allDeviceCount Total count of all devices.
+     * @return SubscriptionStatistics object.
+     */
+    public static SubscriptionStatistics getSubscriptionStatistics(SubscriptionStatisticDTO subscriptionStatisticDTO, int allDeviceCount) {
+        SubscriptionStatistics subscriptionStatistics = new SubscriptionStatistics();
+        subscriptionStatistics.setCompletedPercentage(
+                getPercentage(subscriptionStatisticDTO.getCompletedDeviceCount(), allDeviceCount));
+        subscriptionStatistics.setPendingPercentage(
+                getPercentage(subscriptionStatisticDTO.getPendingDevicesCount(), allDeviceCount));
+        subscriptionStatistics.setFailedPercentage(
+                getPercentage(subscriptionStatisticDTO.getFailedDevicesCount(), allDeviceCount));
+        subscriptionStatistics.setNewDevicesPercentage(getPercentage((allDeviceCount -
+                subscriptionStatisticDTO.getCompletedDeviceCount() -
+                subscriptionStatisticDTO.getPendingDevicesCount() -
+                subscriptionStatisticDTO.getFailedDevicesCount()), allDeviceCount));
+        return subscriptionStatistics;
+    }
+
+    /**
+     * Calculates the percentages.
+     *
+     * @param numerator Numerator value.
+     * @param denominator Denominator value.
+     * @return Calculated percentage.
+     */
+    public static float getPercentage(int numerator, int denominator) {
+        if (denominator <= 0) {
+            return 0.0f;
+        }
+        return ((float) numerator / (float) denominator) * 100;
+    }
+
+    /**
+     * Retrieves database subscription statuses based on the provided device subscription status.
+     *
+     * @param deviceSubscriptionStatus Device subscription status.
+     * @return List of database subscription statuses.
+     */
+    public static List<String> getDBSubscriptionStatus(String deviceSubscriptionStatus) {
+        return SubscriptionMetadata.deviceSubscriptionStatusToDBSubscriptionStatusMap.get(deviceSubscriptionStatus);
+    }
+}

components/application-mgt/io.entgra.device.mgt.core.application.mgt.core/src/main/java/io/entgra/device/mgt/core/application/mgt/core/util/subscription/mgt/SubscriptionManagementServiceProvider.java

@@ -0,0 +1,67 @@
+/*
+ *  Copyright (c) 2018 - 2024, Entgra (Pvt) Ltd. (http://www.entgra.io) All Rights Reserved.
+ *
+ * Entgra (Pvt) Ltd. licenses this file to you under the Apache License,
+ * Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ *
+ */
+
+package io.entgra.device.mgt.core.application.mgt.core.util.subscription.mgt;
+
+import io.entgra.device.mgt.core.application.mgt.common.SubscriptionInfo;
+import io.entgra.device.mgt.core.application.mgt.common.SubscriptionMetadata;
+import io.entgra.device.mgt.core.application.mgt.core.util.subscription.mgt.impl.DeviceBasedSubscriptionManagementHelperServiceImpl;
+import io.entgra.device.mgt.core.application.mgt.core.util.subscription.mgt.impl.GroupBasedSubscriptionManagementHelperServiceImpl;
+import io.entgra.device.mgt.core.application.mgt.core.util.subscription.mgt.impl.RoleBasedSubscriptionManagementHelperServiceImpl;
+import io.entgra.device.mgt.core.application.mgt.core.util.subscription.mgt.impl.UserBasedSubscriptionManagementHelperServiceImpl;
+import io.entgra.device.mgt.core.application.mgt.core.util.subscription.mgt.service.SubscriptionManagementHelperService;
+
+import java.util.Objects;
+
+public class SubscriptionManagementServiceProvider {
+    private SubscriptionManagementServiceProvider() {
+    }
+
+    /**
+     * Retrieves the appropriate SubscriptionManagementHelperService based on the provided SubscriptionInfo.
+     *
+     * @param subscriptionInfo SubscriptionInfo object containing the subscription type.
+     * @return SubscriptionManagementHelperService implementation based on the subscription type.
+     */
+    public SubscriptionManagementHelperService getSubscriptionManagementHelperService(SubscriptionInfo subscriptionInfo) {
+        return getSubscriptionManagementHelperService(subscriptionInfo.getSubscriptionType());
+    }
+
+    /**
+     * Retrieves the appropriate SubscriptionManagementHelperService based on the subscription type.
+     *
+     * @param subscriptionType Type of the subscription.
+     * @return SubscriptionManagementHelperService implementation based on the subscription type.
+     */
+    private SubscriptionManagementHelperService getSubscriptionManagementHelperService(String subscriptionType) {
+        if (Objects.equals(subscriptionType, SubscriptionMetadata.SubscriptionTypes.ROLE))
+            return RoleBasedSubscriptionManagementHelperServiceImpl.getInstance();
+        if (Objects.equals(subscriptionType, SubscriptionMetadata.SubscriptionTypes.GROUP))
+            return GroupBasedSubscriptionManagementHelperServiceImpl.getInstance();
+        if (Objects.equals(subscriptionType, SubscriptionMetadata.SubscriptionTypes.USER))
+            return UserBasedSubscriptionManagementHelperServiceImpl.getInstance();
+        if (Objects.equals(subscriptionType, SubscriptionMetadata.SubscriptionTypes.DEVICE))
+            return DeviceBasedSubscriptionManagementHelperServiceImpl.getInstance();
+        throw new UnsupportedOperationException("Subscription type: " + subscriptionType + " not supports");
+    }
+
+    private static class SubscriptionManagementProviderServiceHolder {
+        private static final SubscriptionManagementServiceProvider INSTANCE = new SubscriptionManagementServiceProvider();
+    }
+}

components/application-mgt/io.entgra.device.mgt.core.application.mgt.core/src/main/java/io/entgra/device/mgt/core/application/mgt/core/util/subscription/mgt/impl/DeviceBasedSubscriptionManagementHelperServiceImpl.java

@@ -0,0 +1,147 @@
+/*
+ *  Copyright (c) 2018 - 2024, Entgra (Pvt) Ltd. (http://www.entgra.io) All Rights Reserved.
+ *
+ * Entgra (Pvt) Ltd. licenses this file to you under the Apache License,
+ * Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ *
+ */
+
+package io.entgra.device.mgt.core.application.mgt.core.util.subscription.mgt.impl;
+
+import io.entgra.device.mgt.core.application.mgt.common.DeviceSubscription;
+import io.entgra.device.mgt.core.application.mgt.common.DeviceSubscriptionFilterCriteria;
+import io.entgra.device.mgt.core.application.mgt.common.SubscriptionInfo;
+import io.entgra.device.mgt.core.application.mgt.common.SubscriptionMetadata;
+import io.entgra.device.mgt.core.application.mgt.common.SubscriptionResponse;
+import io.entgra.device.mgt.core.application.mgt.common.SubscriptionStatistics;
+import io.entgra.device.mgt.core.application.mgt.common.dto.ApplicationDTO;
+import io.entgra.device.mgt.core.application.mgt.common.dto.ApplicationReleaseDTO;
+import io.entgra.device.mgt.core.application.mgt.common.dto.DeviceSubscriptionDTO;
+import io.entgra.device.mgt.core.application.mgt.common.exception.ApplicationManagementException;
+import io.entgra.device.mgt.core.application.mgt.common.exception.DBConnectionException;
+import io.entgra.device.mgt.core.application.mgt.core.exception.ApplicationManagementDAOException;
+import io.entgra.device.mgt.core.application.mgt.core.exception.NotFoundException;
+import io.entgra.device.mgt.core.application.mgt.core.util.ConnectionManagerUtil;
+import io.entgra.device.mgt.core.application.mgt.core.util.HelperUtil;
+import io.entgra.device.mgt.core.application.mgt.core.util.subscription.mgt.SubscriptionManagementHelperUtil;
+import io.entgra.device.mgt.core.application.mgt.core.util.subscription.mgt.service.SubscriptionManagementHelperService;
+import io.entgra.device.mgt.core.device.mgt.common.PaginationRequest;
+import io.entgra.device.mgt.core.device.mgt.common.exceptions.DeviceManagementException;
+import io.entgra.device.mgt.core.device.mgt.core.service.DeviceManagementProviderService;
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.wso2.carbon.context.PrivilegedCarbonContext;
+
+import java.util.Collections;
+import java.util.List;
+import java.util.Objects;
+import java.util.stream.Collectors;
+
+public class DeviceBasedSubscriptionManagementHelperServiceImpl implements SubscriptionManagementHelperService {
+    private static final Log log = LogFactory.getLog(DeviceBasedSubscriptionManagementHelperServiceImpl.class);
+
+    private DeviceBasedSubscriptionManagementHelperServiceImpl() {
+    }
+
+    public static DeviceBasedSubscriptionManagementHelperServiceImpl getInstance() {
+        return DeviceBasedSubscriptionManagementHelperServiceImpl.DeviceBasedSubscriptionManagementHelperServiceImplHolder.INSTANCE;
+    }
+
+    @Override
+    public SubscriptionResponse getStatusBaseSubscriptions(SubscriptionInfo subscriptionInfo, int limit, int offset)
+            throws ApplicationManagementException {
+        final boolean isUnsubscribe = Objects.equals("unsubscribe", subscriptionInfo.getSubscriptionStatus());
+        List<DeviceSubscriptionDTO> deviceSubscriptionDTOS;
+        int deviceCount = 0;
+        int tenantId = PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId();
+
+        try {
+            ConnectionManagerUtil.openDBConnection();
+            ApplicationReleaseDTO applicationReleaseDTO = applicationReleaseDAO.
+                    getReleaseByUUID(subscriptionInfo.getApplicationUUID(), tenantId);
+            if (applicationReleaseDTO == null) {
+                String msg = "Couldn't find an application release for application release UUID: " +
+                        subscriptionInfo.getApplicationUUID();
+                log.error(msg);
+                throw new NotFoundException(msg);
+            }
+
+            ApplicationDTO applicationDTO = this.applicationDAO.getAppWithRelatedRelease(subscriptionInfo.getApplicationUUID(), tenantId);
+            if (applicationDTO == null) {
+                String msg = "Application not found for the release UUID: " + subscriptionInfo.getApplicationUUID();
+                log.error(msg);
+                throw new NotFoundException(msg);
+            }
+
+            String deviceSubscriptionStatus = SubscriptionManagementHelperUtil.getDeviceSubscriptionStatus(subscriptionInfo);
+            DeviceSubscriptionFilterCriteria deviceSubscriptionFilterCriteria = subscriptionInfo.getDeviceSubscriptionFilterCriteria();
+            DeviceManagementProviderService deviceManagementProviderService = HelperUtil.getDeviceManagementProviderService();
+            List<String> dbSubscriptionStatus = SubscriptionManagementHelperUtil.getDBSubscriptionStatus(subscriptionInfo.getDeviceSubscriptionStatus());
+
+            if (Objects.equals(SubscriptionMetadata.DeviceSubscriptionStatus.NEW, deviceSubscriptionStatus)) {
+                deviceSubscriptionDTOS = subscriptionDAO.getAllSubscriptionsDetails(applicationReleaseDTO.
+                                getId(), isUnsubscribe, tenantId, null, null,
+                        deviceSubscriptionFilterCriteria.getTriggeredBy(), -1, -1);
+
+                List<Integer> deviceIdsOfSubscription = deviceSubscriptionDTOS.stream().
+                        map(DeviceSubscriptionDTO::getDeviceId).collect(Collectors.toList());
+
+                List<Integer> newDeviceIds = deviceManagementProviderService.getDevicesNotInGivenIdList(deviceIdsOfSubscription,
+                        new PaginationRequest(offset, limit));
+
+                deviceSubscriptionDTOS = newDeviceIds.stream().map(DeviceSubscriptionDTO::new).collect(Collectors.toList());
+
+                deviceCount = deviceManagementProviderService.getDeviceCountNotInGivenIdList(deviceIdsOfSubscription);
+            } else {
+                deviceSubscriptionDTOS = subscriptionDAO.getAllSubscriptionsDetails(applicationReleaseDTO.
+                        getId(), isUnsubscribe, tenantId, dbSubscriptionStatus, null,
+                        deviceSubscriptionFilterCriteria.getTriggeredBy(), -1, -1);
+
+                deviceCount = SubscriptionManagementHelperUtil.getTotalDeviceSubscriptionCount(deviceSubscriptionDTOS,
+                        subscriptionInfo.getDeviceSubscriptionFilterCriteria(), applicationDTO.getDeviceTypeId());
+            }
+            List<DeviceSubscription> deviceSubscriptions = SubscriptionManagementHelperUtil.getDeviceSubscriptionData(deviceSubscriptionDTOS,
+                    subscriptionInfo.getDeviceSubscriptionFilterCriteria(), isUnsubscribe, applicationDTO.getDeviceTypeId(), limit, offset);
+            return new SubscriptionResponse(subscriptionInfo.getApplicationUUID(), deviceCount, deviceSubscriptions);
+        } catch (DeviceManagementException e) {
+            String msg = "Error encountered while getting device details";
+            log.error(msg, e);
+            throw new ApplicationManagementException(msg, e);
+        } catch (ApplicationManagementDAOException | DBConnectionException e) {
+            String msg = "Error encountered while connecting to the database";
+            log.error(msg, e);
+            throw new ApplicationManagementException(msg, e);
+        } finally {
+            ConnectionManagerUtil.closeDBConnection();
+        }
+    }
+
+    @Override
+    public SubscriptionResponse getSubscriptions(SubscriptionInfo subscriptionInfo, int limit, int offset)
+            throws ApplicationManagementException {
+        return new SubscriptionResponse(subscriptionInfo.getApplicationUUID(), Collections.emptyList());
+    }
+
+    @Override
+    public SubscriptionStatistics getSubscriptionStatistics(SubscriptionInfo subscriptionInfo)
+            throws ApplicationManagementException {
+        return null;
+    }
+
+    private static class DeviceBasedSubscriptionManagementHelperServiceImplHolder {
+        private static final DeviceBasedSubscriptionManagementHelperServiceImpl INSTANCE
+                = new DeviceBasedSubscriptionManagementHelperServiceImpl();
+    }
+
+}

components/application-mgt/io.entgra.device.mgt.core.application.mgt.core/src/main/java/io/entgra/device/mgt/core/application/mgt/core/util/subscription/mgt/impl/GroupBasedSubscriptionManagementHelperServiceImpl.java

@@ -0,0 +1,215 @@
+/*
+ *  Copyright (c) 2018 - 2024, Entgra (Pvt) Ltd. (http://www.entgra.io) All Rights Reserved.
+ *
+ * Entgra (Pvt) Ltd. licenses this file to you under the Apache License,
+ * Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ *
+ */
+
+package io.entgra.device.mgt.core.application.mgt.core.util.subscription.mgt.impl;
+
+import io.entgra.device.mgt.core.application.mgt.common.DeviceSubscription;
+import io.entgra.device.mgt.core.application.mgt.common.DeviceSubscriptionFilterCriteria;
+import io.entgra.device.mgt.core.application.mgt.common.SubscriptionEntity;
+import io.entgra.device.mgt.core.application.mgt.common.SubscriptionInfo;
+import io.entgra.device.mgt.core.application.mgt.common.SubscriptionMetadata;
+import io.entgra.device.mgt.core.application.mgt.common.SubscriptionResponse;
+import io.entgra.device.mgt.core.application.mgt.common.SubscriptionStatistics;
+import io.entgra.device.mgt.core.application.mgt.common.dto.ApplicationDTO;
+import io.entgra.device.mgt.core.application.mgt.common.dto.ApplicationReleaseDTO;
+import io.entgra.device.mgt.core.application.mgt.common.dto.DeviceSubscriptionDTO;
+import io.entgra.device.mgt.core.application.mgt.common.dto.SubscriptionStatisticDTO;
+import io.entgra.device.mgt.core.application.mgt.common.exception.ApplicationManagementException;
+import io.entgra.device.mgt.core.application.mgt.common.exception.DBConnectionException;
+import io.entgra.device.mgt.core.application.mgt.core.exception.ApplicationManagementDAOException;
+import io.entgra.device.mgt.core.application.mgt.core.exception.NotFoundException;
+import io.entgra.device.mgt.core.application.mgt.core.util.ConnectionManagerUtil;
+import io.entgra.device.mgt.core.application.mgt.core.util.HelperUtil;
+import io.entgra.device.mgt.core.application.mgt.core.util.subscription.mgt.SubscriptionManagementHelperUtil;
+import io.entgra.device.mgt.core.application.mgt.core.util.subscription.mgt.service.SubscriptionManagementHelperService;
+import io.entgra.device.mgt.core.device.mgt.common.Device;
+import io.entgra.device.mgt.core.device.mgt.common.PaginationRequest;
+import io.entgra.device.mgt.core.device.mgt.common.exceptions.DeviceManagementException;
+import io.entgra.device.mgt.core.device.mgt.common.group.mgt.GroupManagementException;
+import io.entgra.device.mgt.core.device.mgt.core.dto.GroupDetailsDTO;
+import io.entgra.device.mgt.core.device.mgt.core.service.DeviceManagementProviderService;
+import io.entgra.device.mgt.core.device.mgt.core.service.GroupManagementProviderService;
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.wso2.carbon.context.PrivilegedCarbonContext;
+
+import java.util.List;
+import java.util.Objects;
+import java.util.stream.Collectors;
+
+public class GroupBasedSubscriptionManagementHelperServiceImpl implements SubscriptionManagementHelperService {
+    private static final Log log = LogFactory.getLog(GroupBasedSubscriptionManagementHelperServiceImpl.class);
+
+    private GroupBasedSubscriptionManagementHelperServiceImpl() {
+    }
+
+    public static GroupBasedSubscriptionManagementHelperServiceImpl getInstance() {
+        return GroupBasedSubscriptionManagementHelperServiceImplHolder.INSTANCE;
+    }
+
+    @Override
+    public SubscriptionResponse getStatusBaseSubscriptions(SubscriptionInfo subscriptionInfo, int limit, int offset)
+            throws ApplicationManagementException {
+
+        final boolean isUnsubscribe = Objects.equals("unsubscribe", subscriptionInfo.getSubscriptionStatus());
+        List<DeviceSubscriptionDTO> deviceSubscriptionDTOS;
+        int deviceCount = 0;
+        int tenantId = PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId();
+
+        try {
+            ConnectionManagerUtil.openDBConnection();
+            ApplicationReleaseDTO applicationReleaseDTO = applicationReleaseDAO.
+                    getReleaseByUUID(subscriptionInfo.getApplicationUUID(), tenantId);
+
+            if (applicationReleaseDTO == null) {
+                String msg = "Couldn't find an application release for application release UUID: " +
+                        subscriptionInfo.getApplicationUUID();
+                log.error(msg);
+                throw new NotFoundException(msg);
+            }
+
+            ApplicationDTO applicationDTO = this.applicationDAO.getAppWithRelatedRelease(subscriptionInfo.getApplicationUUID(), tenantId);
+            if (applicationDTO == null) {
+                String msg = "Application not found for the release UUID: " + subscriptionInfo.getApplicationUUID();
+                log.error(msg);
+                throw new NotFoundException(msg);
+            }
+
+            String deviceSubscriptionStatus = SubscriptionManagementHelperUtil.getDeviceSubscriptionStatus(subscriptionInfo);
+            DeviceSubscriptionFilterCriteria deviceSubscriptionFilterCriteria = subscriptionInfo.getDeviceSubscriptionFilterCriteria();
+            DeviceManagementProviderService deviceManagementProviderService = HelperUtil.getDeviceManagementProviderService();
+
+            GroupManagementProviderService groupManagementProviderService = HelperUtil.getGroupManagementProviderService();
+            GroupDetailsDTO groupDetailsDTO;
+            List<String> dbSubscriptionStatus = SubscriptionManagementHelperUtil.getDBSubscriptionStatus(subscriptionInfo.getDeviceSubscriptionStatus());
+
+            if (Objects.equals(SubscriptionMetadata.DeviceSubscriptionStatus.NEW, deviceSubscriptionStatus)) {
+                List<Integer> allDeviceIdsOwnByGroup = groupManagementProviderService.getGroupDetailsWithDevices(subscriptionInfo.getIdentifier(),
+                        applicationDTO.getDeviceTypeId(), deviceSubscriptionFilterCriteria.getOwner(), deviceSubscriptionFilterCriteria.getName(),
+                        deviceSubscriptionFilterCriteria.getDeviceStatus(), -1, -1).getDeviceIds();
+
+                deviceSubscriptionDTOS = subscriptionDAO.getSubscriptionDetailsByDeviceIds(applicationReleaseDTO.getId(),
+                        isUnsubscribe, tenantId, allDeviceIdsOwnByGroup, null,
+                        null, deviceSubscriptionFilterCriteria.getTriggeredBy(), -1, -1);
+
+                List<Integer> deviceIdsOfSubscription = deviceSubscriptionDTOS.stream().
+                        map(DeviceSubscriptionDTO::getDeviceId).collect(Collectors.toList());
+
+                for (Integer deviceId : deviceIdsOfSubscription) {
+                    allDeviceIdsOwnByGroup.remove(deviceId);
+                }
+
+                List<Integer> paginatedNewDeviceIds = deviceManagementProviderService.getDevicesInGivenIdList(allDeviceIdsOwnByGroup,
+                        new PaginationRequest(offset, limit));
+                deviceSubscriptionDTOS = paginatedNewDeviceIds.stream().map(DeviceSubscriptionDTO::new).collect(Collectors.toList());
+
+                deviceCount = allDeviceIdsOwnByGroup.size();
+            } else {
+                groupDetailsDTO = groupManagementProviderService.getGroupDetailsWithDevices(subscriptionInfo.getIdentifier(),
+                        applicationDTO.getDeviceTypeId(), deviceSubscriptionFilterCriteria.getOwner(), deviceSubscriptionFilterCriteria.getName(),
+                        deviceSubscriptionFilterCriteria.getDeviceStatus(), offset, limit);
+                List<Integer> paginatedDeviceIdsOwnByGroup = groupDetailsDTO.getDeviceIds();
+
+                deviceSubscriptionDTOS = subscriptionDAO.getSubscriptionDetailsByDeviceIds(applicationReleaseDTO.getId(),
+                        isUnsubscribe, tenantId, paginatedDeviceIdsOwnByGroup, dbSubscriptionStatus,
+                        null, deviceSubscriptionFilterCriteria.getTriggeredBy(), -1, -1);
+
+                deviceCount = SubscriptionManagementHelperUtil.getTotalDeviceSubscriptionCount(deviceSubscriptionDTOS,
+                        subscriptionInfo.getDeviceSubscriptionFilterCriteria(), applicationDTO.getDeviceTypeId());
+            }
+            List<DeviceSubscription> deviceSubscriptions = SubscriptionManagementHelperUtil.getDeviceSubscriptionData(deviceSubscriptionDTOS,
+                    subscriptionInfo.getDeviceSubscriptionFilterCriteria(), isUnsubscribe, applicationDTO.getDeviceTypeId(), limit, offset);
+            return new SubscriptionResponse(subscriptionInfo.getApplicationUUID(), deviceCount, deviceSubscriptions);
+        } catch (GroupManagementException e) {
+            String msg = "Error encountered while retrieving group details for group: " + subscriptionInfo.getIdentifier();
+            log.error(msg, e);
+            throw new ApplicationManagementException(msg, e);
+        } catch (ApplicationManagementDAOException | DBConnectionException e) {
+            String msg = "Error encountered while connecting to the database";
+            log.error(msg, e);
+            throw new ApplicationManagementException(msg, e);
+        } catch (DeviceManagementException e) {
+            throw new RuntimeException(e);
+        } finally {
+            ConnectionManagerUtil.closeDBConnection();
+        }
+
+    }
+
+    @Override
+    public SubscriptionResponse getSubscriptions(SubscriptionInfo subscriptionInfo, int limit, int offset)
+            throws ApplicationManagementException {
+        final boolean isUnsubscribe = Objects.equals("unsubscribe", subscriptionInfo.getSubscriptionStatus());
+        final int tenantId = PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId();
+        try {
+            ConnectionManagerUtil.openDBConnection();
+            ApplicationReleaseDTO applicationReleaseDTO = applicationReleaseDAO.
+                    getReleaseByUUID(subscriptionInfo.getApplicationUUID(), tenantId);
+            if (applicationReleaseDTO == null) {
+                String msg = "Couldn't find an application release for application release UUID: " +
+                        subscriptionInfo.getApplicationUUID();
+                log.error(msg);
+                throw new NotFoundException(msg);
+            }
+            List<SubscriptionEntity> subscriptionEntities = subscriptionDAO.
+                    getGroupsSubscriptionDetailsByAppReleaseID(applicationReleaseDTO.getId(), isUnsubscribe, tenantId, offset, limit);
+            int subscriptionCount = isUnsubscribe ? subscriptionDAO.getGroupUnsubscriptionCount(applicationReleaseDTO.getId(), tenantId) :
+                    subscriptionDAO.getGroupSubscriptionCount(applicationReleaseDTO.getId(), tenantId);
+            return new SubscriptionResponse(subscriptionInfo.getApplicationUUID(), subscriptionCount, subscriptionEntities);
+        } catch (DBConnectionException | ApplicationManagementDAOException e) {
+            String msg = "Error encountered while connecting to the database";
+            log.error(msg, e);
+            throw new ApplicationManagementException(msg, e);
+        } finally {
+            ConnectionManagerUtil.closeDBConnection();
+        }
+    }
+
+    @Override
+    public SubscriptionStatistics getSubscriptionStatistics(SubscriptionInfo subscriptionInfo)
+            throws ApplicationManagementException {
+        final boolean isUnsubscribe = Objects.equals("unsubscribe", subscriptionInfo.getSubscriptionStatus());
+        int tenantId = PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId();
+        try {
+            ConnectionManagerUtil.openDBConnection();
+            List<Device> devices = HelperUtil.getGroupManagementProviderService().
+                    getAllDevicesOfGroup(subscriptionInfo.getIdentifier(), false);
+            List<Integer> deviceIdsOwnByGroup = devices.stream().map(Device::getId).collect(Collectors.toList());
+            SubscriptionStatisticDTO subscriptionStatisticDTO = subscriptionDAO.
+                    getSubscriptionStatistic(deviceIdsOwnByGroup, null, isUnsubscribe, tenantId);
+            int allDeviceCount = HelperUtil.getGroupManagementProviderService().getDeviceCount(subscriptionInfo.getIdentifier());
+            return SubscriptionManagementHelperUtil.getSubscriptionStatistics(subscriptionStatisticDTO, allDeviceCount);
+        } catch (ApplicationManagementDAOException e) {
+            String msg = "Error encountered while getting subscription statistics for group: " + subscriptionInfo.getIdentifier();
+            log.error(msg, e);
+            throw new ApplicationManagementException(msg, e);
+        } catch (GroupManagementException e) {
+            String msg = "Error encountered while getting device subscription for group: " + subscriptionInfo.getIdentifier();
+            log.error(msg, e);
+            throw new ApplicationManagementException(msg, e);
+        } finally {
+            ConnectionManagerUtil.closeDBConnection();
+        }
+    }
+
+    private static class GroupBasedSubscriptionManagementHelperServiceImplHolder {
+        private static final GroupBasedSubscriptionManagementHelperServiceImpl INSTANCE
+                = new GroupBasedSubscriptionManagementHelperServiceImpl();
+    }
+}

components/application-mgt/io.entgra.device.mgt.core.application.mgt.core/src/main/java/io/entgra/device/mgt/core/application/mgt/core/util/subscription/mgt/impl/RoleBasedSubscriptionManagementHelperServiceImpl.java

@@ -0,0 +1,221 @@
+/*
+ *  Copyright (c) 2018 - 2024, Entgra (Pvt) Ltd. (http://www.entgra.io) All Rights Reserved.
+ *
+ * Entgra (Pvt) Ltd. licenses this file to you under the Apache License,
+ * Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ *
+ */
+
+package io.entgra.device.mgt.core.application.mgt.core.util.subscription.mgt.impl;
+
+import io.entgra.device.mgt.core.application.mgt.common.DeviceSubscription;
+import io.entgra.device.mgt.core.application.mgt.common.DeviceSubscriptionFilterCriteria;
+import io.entgra.device.mgt.core.application.mgt.common.SubscriptionEntity;
+import io.entgra.device.mgt.core.application.mgt.common.SubscriptionInfo;
+import io.entgra.device.mgt.core.application.mgt.common.SubscriptionMetadata;
+import io.entgra.device.mgt.core.application.mgt.common.SubscriptionResponse;
+import io.entgra.device.mgt.core.application.mgt.common.SubscriptionStatistics;
+import io.entgra.device.mgt.core.application.mgt.common.dto.ApplicationDTO;
+import io.entgra.device.mgt.core.application.mgt.common.dto.ApplicationReleaseDTO;
+import io.entgra.device.mgt.core.application.mgt.common.dto.DeviceSubscriptionDTO;
+import io.entgra.device.mgt.core.application.mgt.common.dto.SubscriptionStatisticDTO;
+import io.entgra.device.mgt.core.application.mgt.common.exception.ApplicationManagementException;
+import io.entgra.device.mgt.core.application.mgt.common.exception.DBConnectionException;
+import io.entgra.device.mgt.core.application.mgt.core.exception.ApplicationManagementDAOException;
+import io.entgra.device.mgt.core.application.mgt.core.exception.NotFoundException;
+import io.entgra.device.mgt.core.application.mgt.core.internal.DataHolder;
+import io.entgra.device.mgt.core.application.mgt.core.util.ConnectionManagerUtil;
+import io.entgra.device.mgt.core.application.mgt.core.util.HelperUtil;
+import io.entgra.device.mgt.core.application.mgt.core.util.subscription.mgt.SubscriptionManagementHelperUtil;
+import io.entgra.device.mgt.core.application.mgt.core.util.subscription.mgt.service.SubscriptionManagementHelperService;
+import io.entgra.device.mgt.core.device.mgt.common.Device;
+import io.entgra.device.mgt.core.device.mgt.common.PaginationRequest;
+import io.entgra.device.mgt.core.device.mgt.common.PaginationResult;
+import io.entgra.device.mgt.core.device.mgt.common.exceptions.DeviceManagementException;
+import io.entgra.device.mgt.core.device.mgt.core.service.DeviceManagementProviderService;
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.wso2.carbon.context.PrivilegedCarbonContext;
+import org.wso2.carbon.user.api.UserStoreException;
+import org.wso2.carbon.user.api.UserStoreManager;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.util.Objects;
+import java.util.stream.Collectors;
+
+public class RoleBasedSubscriptionManagementHelperServiceImpl implements SubscriptionManagementHelperService {
+    private static final Log log = LogFactory.getLog(RoleBasedSubscriptionManagementHelperServiceImpl.class);
+
+    private RoleBasedSubscriptionManagementHelperServiceImpl() {
+    }
+
+    public static RoleBasedSubscriptionManagementHelperServiceImpl getInstance() {
+        return RoleBasedSubscriptionManagementHelperServiceImplHolder.INSTANCE;
+    }
+
+    @Override
+    public SubscriptionResponse getStatusBaseSubscriptions(SubscriptionInfo subscriptionInfo, int limit, int offset)
+            throws ApplicationManagementException {
+        final boolean isUnsubscribe = Objects.equals("unsubscribe", subscriptionInfo.getSubscriptionStatus());
+        List<DeviceSubscriptionDTO> deviceSubscriptionDTOS;
+        int deviceCount = 0;
+        int tenantId = PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId();
+
+        try {
+            ConnectionManagerUtil.openDBConnection();
+            List<Integer> deviceIdsOwnByRole = getDeviceIdsOwnByRole(subscriptionInfo.getIdentifier(), tenantId);
+
+            ApplicationReleaseDTO applicationReleaseDTO = applicationReleaseDAO.
+                    getReleaseByUUID(subscriptionInfo.getApplicationUUID(), tenantId);
+            if (applicationReleaseDTO == null) {
+                String msg = "Couldn't find an application release for application release UUID: " +
+                        subscriptionInfo.getApplicationUUID();
+                log.error(msg);
+                throw new NotFoundException(msg);
+            }
+
+            ApplicationDTO applicationDTO = this.applicationDAO.getAppWithRelatedRelease(subscriptionInfo.getApplicationUUID(), tenantId);
+            if (applicationDTO == null) {
+                String msg = "Application not found for the release UUID: " + subscriptionInfo.getApplicationUUID();
+                log.error(msg);
+                throw new NotFoundException(msg);
+            }
+
+            String deviceSubscriptionStatus = SubscriptionManagementHelperUtil.getDeviceSubscriptionStatus(subscriptionInfo);
+            DeviceSubscriptionFilterCriteria deviceSubscriptionFilterCriteria = subscriptionInfo.getDeviceSubscriptionFilterCriteria();
+            DeviceManagementProviderService deviceManagementProviderService = HelperUtil.getDeviceManagementProviderService();
+            List<String> dbSubscriptionStatus = SubscriptionManagementHelperUtil.getDBSubscriptionStatus(subscriptionInfo.getDeviceSubscriptionStatus());
+
+            if (Objects.equals(SubscriptionMetadata.DeviceSubscriptionStatus.NEW, deviceSubscriptionStatus)) {
+                deviceSubscriptionDTOS = subscriptionDAO.getSubscriptionDetailsByDeviceIds(applicationReleaseDTO.getId(),
+                        isUnsubscribe, tenantId, deviceIdsOwnByRole, null,
+                        null, deviceSubscriptionFilterCriteria.getTriggeredBy(), -1, -1);
+
+                List<Integer> deviceIdsOfSubscription = deviceSubscriptionDTOS.stream().
+                        map(DeviceSubscriptionDTO::getDeviceId).collect(Collectors.toList());
+
+                for (Integer deviceId : deviceIdsOfSubscription) {
+                    deviceIdsOwnByRole.remove(deviceId);
+                }
+
+                List<Integer> paginatedNewDeviceIds = deviceManagementProviderService.getDevicesInGivenIdList(deviceIdsOwnByRole,
+                        new PaginationRequest(offset, limit));
+                deviceSubscriptionDTOS = paginatedNewDeviceIds.stream().map(DeviceSubscriptionDTO::new).collect(Collectors.toList());
+                deviceCount = deviceIdsOwnByRole.size();
+            } else {
+                deviceSubscriptionDTOS = subscriptionDAO.getSubscriptionDetailsByDeviceIds(applicationReleaseDTO.getId(),
+                        isUnsubscribe, tenantId, deviceIdsOwnByRole, dbSubscriptionStatus,
+                        subscriptionInfo.getSubscriptionType(), deviceSubscriptionFilterCriteria.getTriggeredBy(), -1, -1);
+
+                deviceCount = SubscriptionManagementHelperUtil.getTotalDeviceSubscriptionCount(deviceSubscriptionDTOS,
+                        subscriptionInfo.getDeviceSubscriptionFilterCriteria(), applicationDTO.getDeviceTypeId());
+            }
+            List<DeviceSubscription> deviceSubscriptions = SubscriptionManagementHelperUtil.
+                    getDeviceSubscriptionData(deviceSubscriptionDTOS,
+                            subscriptionInfo.getDeviceSubscriptionFilterCriteria(), isUnsubscribe, applicationDTO.getDeviceTypeId(), limit, offset);
+            return new SubscriptionResponse(subscriptionInfo.getApplicationUUID(), deviceCount, deviceSubscriptions);
+
+        } catch (UserStoreException e) {
+            String msg = "Error encountered while getting the user management store for tenant id " + tenantId;
+            log.error(msg, e);
+            throw new ApplicationManagementException(msg, e);
+        } catch (DeviceManagementException e) {
+            String msg = "Error encountered while getting device details";
+            log.error(msg, e);
+            throw new ApplicationManagementException(msg, e);
+        } catch (ApplicationManagementDAOException | DBConnectionException e) {
+            String msg = "Error encountered while connecting to the database";
+            log.error(msg, e);
+            throw new ApplicationManagementException(msg, e);
+        } finally {
+            ConnectionManagerUtil.closeDBConnection();
+        }
+    }
+
+    @Override
+    public SubscriptionResponse getSubscriptions(SubscriptionInfo subscriptionInfo, int limit, int offset)
+            throws ApplicationManagementException {
+        final boolean isUnsubscribe = Objects.equals("unsubscribe", subscriptionInfo.getSubscriptionStatus());
+        final int tenantId = PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId();
+        try {
+            ConnectionManagerUtil.openDBConnection();
+            ApplicationReleaseDTO applicationReleaseDTO = applicationReleaseDAO.
+                    getReleaseByUUID(subscriptionInfo.getApplicationUUID(), tenantId);
+            if (applicationReleaseDTO == null) {
+                String msg = "Couldn't find an application release for application release UUID: " +
+                        subscriptionInfo.getApplicationUUID();
+                log.error(msg);
+                throw new NotFoundException(msg);
+            }
+            List<SubscriptionEntity> subscriptionEntities = subscriptionDAO.
+                    getRoleSubscriptionsByAppReleaseID(applicationReleaseDTO.getId(), isUnsubscribe, tenantId, offset, limit);
+            int subscriptionCount = isUnsubscribe ? subscriptionDAO.getRoleUnsubscriptionCount(applicationReleaseDTO.getId(), tenantId) :
+                    subscriptionDAO.getRoleSubscriptionCount(applicationReleaseDTO.getId(), tenantId);
+            return new SubscriptionResponse(subscriptionInfo.getApplicationUUID(), subscriptionCount, subscriptionEntities);
+        } catch (DBConnectionException | ApplicationManagementDAOException e) {
+            String msg = "Error encountered while connecting to the database";
+            log.error(msg, e);
+            throw new ApplicationManagementException(msg, e);
+        } finally {
+            ConnectionManagerUtil.closeDBConnection();
+        }
+    }
+
+    @Override
+    public SubscriptionStatistics getSubscriptionStatistics(SubscriptionInfo subscriptionInfo) throws ApplicationManagementException {
+        final boolean isUnsubscribe = Objects.equals("unsubscribe", subscriptionInfo.getSubscriptionStatus());
+        int tenantId = PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId();
+        try {
+            ConnectionManagerUtil.openDBConnection();
+            List<Integer> deviceIdsOwnByRole = getDeviceIdsOwnByRole(subscriptionInfo.getIdentifier(), tenantId);
+            SubscriptionStatisticDTO subscriptionStatisticDTO = subscriptionDAO.
+                    getSubscriptionStatistic(deviceIdsOwnByRole, null, isUnsubscribe, tenantId);
+            int allDeviceCount = deviceIdsOwnByRole.size();
+            return SubscriptionManagementHelperUtil.getSubscriptionStatistics(subscriptionStatisticDTO, allDeviceCount);
+        } catch (DeviceManagementException | ApplicationManagementDAOException | UserStoreException e) {
+            String msg = "Error encountered while getting subscription statistics for role: " + subscriptionInfo.getIdentifier();
+            log.error(msg, e);
+            throw new ApplicationManagementException(msg, e);
+        } finally {
+            ConnectionManagerUtil.closeDBConnection();
+        }
+    }
+
+    @SuppressWarnings("unchecked")
+    private List<Integer> getDeviceIdsOwnByRole(String roleName, int tenantId) throws UserStoreException, DeviceManagementException {
+        UserStoreManager userStoreManager = DataHolder.getInstance().getRealmService().
+                getTenantUserRealm(tenantId).getUserStoreManager();
+        String[] usersWithRole =
+                userStoreManager.getUserListOfRole(roleName);
+        List<Device> deviceListOwnByRole = new ArrayList<>();
+        for (String user : usersWithRole) {
+            PaginationRequest paginationRequest = new PaginationRequest(-1, -1);
+            paginationRequest.setOwner(user);
+            paginationRequest.setStatusList(Arrays.asList("ACTIVE", "INACTIVE", "UNREACHABLE"));
+            PaginationResult ownDeviceIds = HelperUtil.getDeviceManagementProviderService().
+                    getAllDevicesIdList(paginationRequest);
+            if (ownDeviceIds.getData() != null) {
+                deviceListOwnByRole.addAll((List<Device>) ownDeviceIds.getData());
+            }
+        }
+        return deviceListOwnByRole.stream().map(Device::getId).collect(Collectors.toList());
+    }
+
+    private static class RoleBasedSubscriptionManagementHelperServiceImplHolder {
+        private static final RoleBasedSubscriptionManagementHelperServiceImpl INSTANCE
+                = new RoleBasedSubscriptionManagementHelperServiceImpl();
+    }
+}

components/application-mgt/io.entgra.device.mgt.core.application.mgt.core/src/main/java/io/entgra/device/mgt/core/application/mgt/core/util/subscription/mgt/impl/UserBasedSubscriptionManagementHelperServiceImpl.java

@@ -0,0 +1,206 @@
+/*
+ *  Copyright (c) 2018 - 2024, Entgra (Pvt) Ltd. (http://www.entgra.io) All Rights Reserved.
+ *
+ * Entgra (Pvt) Ltd. licenses this file to you under the Apache License,
+ * Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ *
+ */
+
+package io.entgra.device.mgt.core.application.mgt.core.util.subscription.mgt.impl;
+
+import io.entgra.device.mgt.core.application.mgt.common.DeviceSubscription;
+import io.entgra.device.mgt.core.application.mgt.common.DeviceSubscriptionFilterCriteria;
+import io.entgra.device.mgt.core.application.mgt.common.SubscriptionEntity;
+import io.entgra.device.mgt.core.application.mgt.common.SubscriptionInfo;
+import io.entgra.device.mgt.core.application.mgt.common.SubscriptionMetadata;
+import io.entgra.device.mgt.core.application.mgt.common.SubscriptionResponse;
+import io.entgra.device.mgt.core.application.mgt.common.SubscriptionStatistics;
+import io.entgra.device.mgt.core.application.mgt.common.dto.ApplicationDTO;
+import io.entgra.device.mgt.core.application.mgt.common.dto.ApplicationReleaseDTO;
+import io.entgra.device.mgt.core.application.mgt.common.dto.DeviceSubscriptionDTO;
+import io.entgra.device.mgt.core.application.mgt.common.dto.SubscriptionStatisticDTO;
+import io.entgra.device.mgt.core.application.mgt.common.exception.ApplicationManagementException;
+import io.entgra.device.mgt.core.application.mgt.common.exception.DBConnectionException;
+import io.entgra.device.mgt.core.application.mgt.core.exception.ApplicationManagementDAOException;
+import io.entgra.device.mgt.core.application.mgt.core.exception.NotFoundException;
+import io.entgra.device.mgt.core.application.mgt.core.util.ConnectionManagerUtil;
+import io.entgra.device.mgt.core.application.mgt.core.util.HelperUtil;
+import io.entgra.device.mgt.core.application.mgt.core.util.subscription.mgt.SubscriptionManagementHelperUtil;
+import io.entgra.device.mgt.core.application.mgt.core.util.subscription.mgt.service.SubscriptionManagementHelperService;
+import io.entgra.device.mgt.core.device.mgt.common.Device;
+import io.entgra.device.mgt.core.device.mgt.common.PaginationRequest;
+import io.entgra.device.mgt.core.device.mgt.common.PaginationResult;
+import io.entgra.device.mgt.core.device.mgt.common.exceptions.DeviceManagementException;
+import io.entgra.device.mgt.core.device.mgt.core.service.DeviceManagementProviderService;
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.wso2.carbon.context.PrivilegedCarbonContext;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.util.Objects;
+import java.util.stream.Collectors;
+
+public class UserBasedSubscriptionManagementHelperServiceImpl implements SubscriptionManagementHelperService {
+    private static final Log log = LogFactory.getLog(UserBasedSubscriptionManagementHelperServiceImpl.class);
+
+    private UserBasedSubscriptionManagementHelperServiceImpl() {
+    }
+
+    public static UserBasedSubscriptionManagementHelperServiceImpl getInstance() {
+        return UserBasedSubscriptionManagementHelperServiceImpl.UserBasedSubscriptionManagementHelperServiceImplHolder.INSTANCE;
+    }
+
+    @Override
+    public SubscriptionResponse getStatusBaseSubscriptions(SubscriptionInfo subscriptionInfo, int limit, int offset)
+            throws ApplicationManagementException {
+        final boolean isUnsubscribe = Objects.equals("unsubscribe", subscriptionInfo.getSubscriptionStatus());
+        List<DeviceSubscriptionDTO> deviceSubscriptionDTOS;
+        int deviceCount = 0;
+        int tenantId = PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId();
+
+        try {
+            ConnectionManagerUtil.openDBConnection();
+            List<Integer> deviceIdsOwnByUser = getDeviceIdsOwnByUser(subscriptionInfo.getIdentifier());
+
+            ApplicationReleaseDTO applicationReleaseDTO = applicationReleaseDAO.
+                    getReleaseByUUID(subscriptionInfo.getApplicationUUID(), tenantId);
+            if (applicationReleaseDTO == null) {
+                String msg = "Couldn't find an application release for application release UUID: " +
+                        subscriptionInfo.getApplicationUUID();
+                log.error(msg);
+                throw new NotFoundException(msg);
+            }
+
+            ApplicationDTO applicationDTO = this.applicationDAO.getAppWithRelatedRelease(subscriptionInfo.getApplicationUUID(), tenantId);
+            if (applicationDTO == null) {
+                String msg = "Application not found for the release UUID: " + subscriptionInfo.getApplicationUUID();
+                log.error(msg);
+                throw new NotFoundException(msg);
+            }
+
+            String deviceSubscriptionStatus = SubscriptionManagementHelperUtil.getDeviceSubscriptionStatus(subscriptionInfo);
+            DeviceSubscriptionFilterCriteria deviceSubscriptionFilterCriteria = subscriptionInfo.getDeviceSubscriptionFilterCriteria();
+            DeviceManagementProviderService deviceManagementProviderService = HelperUtil.getDeviceManagementProviderService();
+            List<String> dbSubscriptionStatus = SubscriptionManagementHelperUtil.getDBSubscriptionStatus(subscriptionInfo.getDeviceSubscriptionStatus());
+
+            if (Objects.equals(SubscriptionMetadata.DeviceSubscriptionStatus.NEW, deviceSubscriptionStatus)) {
+                deviceSubscriptionDTOS = subscriptionDAO.getSubscriptionDetailsByDeviceIds(applicationReleaseDTO.getId(),
+                        isUnsubscribe, tenantId, deviceIdsOwnByUser, null,
+                        null, deviceSubscriptionFilterCriteria.getTriggeredBy(), -1, -1);
+
+                List<Integer> deviceIdsOfSubscription = deviceSubscriptionDTOS.stream().
+                        map(DeviceSubscriptionDTO::getDeviceId).collect(Collectors.toList());
+
+                for (Integer deviceId : deviceIdsOfSubscription) {
+                    deviceIdsOwnByUser.remove(deviceId);
+                }
+                List<Integer> paginatedNewDeviceIds = deviceManagementProviderService.getDevicesInGivenIdList(deviceIdsOwnByUser,
+                        new PaginationRequest(offset, limit));
+                deviceSubscriptionDTOS = paginatedNewDeviceIds.stream().map(DeviceSubscriptionDTO::new).collect(Collectors.toList());
+
+                deviceCount = deviceIdsOwnByUser.size();
+            } else {
+                deviceSubscriptionDTOS = subscriptionDAO.getSubscriptionDetailsByDeviceIds(applicationReleaseDTO.getId(),
+                        isUnsubscribe, tenantId, deviceIdsOwnByUser, dbSubscriptionStatus,
+                        null, deviceSubscriptionFilterCriteria.getTriggeredBy(), -1, -1);
+
+                deviceCount = SubscriptionManagementHelperUtil.getTotalDeviceSubscriptionCount(deviceSubscriptionDTOS,
+                        subscriptionInfo.getDeviceSubscriptionFilterCriteria(), applicationDTO.getDeviceTypeId());
+            }
+            List<DeviceSubscription> deviceSubscriptions = SubscriptionManagementHelperUtil.getDeviceSubscriptionData(deviceSubscriptionDTOS,
+                    subscriptionInfo.getDeviceSubscriptionFilterCriteria(), isUnsubscribe, applicationDTO.getDeviceTypeId(), limit, offset);
+            return new SubscriptionResponse(subscriptionInfo.getApplicationUUID(), deviceCount, deviceSubscriptions);
+        } catch (DeviceManagementException e) {
+            String msg = "Error encountered while getting device details";
+            log.error(msg, e);
+            throw new ApplicationManagementException(msg, e);
+        } catch (ApplicationManagementDAOException | DBConnectionException e) {
+            String msg = "Error encountered while connecting to the database";
+            log.error(msg, e);
+            throw new ApplicationManagementException(msg, e);
+        } finally {
+            ConnectionManagerUtil.closeDBConnection();
+        }
+    }
+
+    @Override
+    public SubscriptionResponse getSubscriptions(SubscriptionInfo subscriptionInfo, int limit, int offset)
+            throws ApplicationManagementException {
+        final boolean isUnsubscribe = Objects.equals("unsubscribe", subscriptionInfo.getSubscriptionStatus());
+        final int tenantId = PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId();
+        try {
+            ConnectionManagerUtil.openDBConnection();
+            ApplicationReleaseDTO applicationReleaseDTO = applicationReleaseDAO.
+                    getReleaseByUUID(subscriptionInfo.getApplicationUUID(), tenantId);
+            if (applicationReleaseDTO == null) {
+                String msg = "Couldn't find an application release for application release UUID: " +
+                        subscriptionInfo.getApplicationUUID();
+                log.error(msg);
+                throw new NotFoundException(msg);
+            }
+            List<SubscriptionEntity> subscriptionEntities = subscriptionDAO.
+                    getUserSubscriptionsByAppReleaseID(applicationReleaseDTO.getId(), isUnsubscribe, tenantId, offset, limit);
+            int subscriptionCount = isUnsubscribe ? subscriptionDAO.getUserUnsubscriptionCount(applicationReleaseDTO.getId(), tenantId) :
+                    subscriptionDAO.getUserSubscriptionCount(applicationReleaseDTO.getId(), tenantId);
+            return new SubscriptionResponse(subscriptionInfo.getApplicationUUID(), subscriptionCount, subscriptionEntities);
+        } catch (DBConnectionException | ApplicationManagementDAOException e) {
+            String msg = "Error encountered while connecting to the database";
+            log.error(msg, e);
+            throw new ApplicationManagementException(msg, e);
+        } finally {
+            ConnectionManagerUtil.closeDBConnection();
+        }
+    }
+
+    @Override
+    public SubscriptionStatistics getSubscriptionStatistics(SubscriptionInfo subscriptionInfo) throws ApplicationManagementException {
+        final boolean isUnsubscribe = Objects.equals("unsubscribe", subscriptionInfo.getSubscriptionStatus());
+        int tenantId = PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId();
+        try {
+            ConnectionManagerUtil.openDBConnection();
+            List<Integer> deviceIdsOwnByUser = getDeviceIdsOwnByUser(subscriptionInfo.getIdentifier());
+            SubscriptionStatisticDTO subscriptionStatisticDTO = subscriptionDAO.
+                    getSubscriptionStatistic(deviceIdsOwnByUser, null, isUnsubscribe, tenantId);
+            int allDeviceCount = deviceIdsOwnByUser.size();
+            return SubscriptionManagementHelperUtil.getSubscriptionStatistics(subscriptionStatisticDTO, allDeviceCount);
+        } catch (DeviceManagementException | ApplicationManagementDAOException e) {
+            String msg = "Error encountered while getting subscription statistics for user: " + subscriptionInfo.getIdentifier();
+            log.error(msg, e);
+            throw new ApplicationManagementException(msg, e);
+        } finally {
+            ConnectionManagerUtil.closeDBConnection();
+        }
+    }
+
+    @SuppressWarnings("unchecked")
+    private List<Integer> getDeviceIdsOwnByUser(String username) throws DeviceManagementException {
+        List<Device> deviceListOwnByUser = new ArrayList<>();
+        PaginationRequest paginationRequest = new PaginationRequest(-1, -1);
+        paginationRequest.setOwner(username);
+        paginationRequest.setStatusList(Arrays.asList("ACTIVE", "INACTIVE", "UNREACHABLE"));
+        PaginationResult ownDeviceIds = HelperUtil.getDeviceManagementProviderService().
+                getAllDevicesIdList(paginationRequest);
+        if (ownDeviceIds.getData() != null) {
+            deviceListOwnByUser.addAll((List<Device>) ownDeviceIds.getData());
+        }
+        return deviceListOwnByUser.stream().map(Device::getId).collect(Collectors.toList());
+    }
+
+    private static class UserBasedSubscriptionManagementHelperServiceImplHolder {
+        private static final UserBasedSubscriptionManagementHelperServiceImpl INSTANCE
+                = new UserBasedSubscriptionManagementHelperServiceImpl();
+    }
+}

components/application-mgt/io.entgra.device.mgt.core.application.mgt.core/src/main/java/io/entgra/device/mgt/core/application/mgt/core/util/subscription/mgt/service/SubscriptionManagementHelperService.java

@@ -0,0 +1,44 @@
+/*
+ *  Copyright (c) 2018 - 2024, Entgra (Pvt) Ltd. (http://www.entgra.io) All Rights Reserved.
+ *
+ * Entgra (Pvt) Ltd. licenses this file to you under the Apache License,
+ * Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ *
+ */
+
+package io.entgra.device.mgt.core.application.mgt.core.util.subscription.mgt.service;
+
+import io.entgra.device.mgt.core.application.mgt.common.SubscriptionInfo;
+import io.entgra.device.mgt.core.application.mgt.common.SubscriptionResponse;
+import io.entgra.device.mgt.core.application.mgt.common.SubscriptionStatistics;
+import io.entgra.device.mgt.core.application.mgt.common.exception.ApplicationManagementException;
+import io.entgra.device.mgt.core.application.mgt.core.dao.ApplicationDAO;
+import io.entgra.device.mgt.core.application.mgt.core.dao.ApplicationReleaseDAO;
+import io.entgra.device.mgt.core.application.mgt.core.dao.SubscriptionDAO;
+import io.entgra.device.mgt.core.application.mgt.core.dao.common.ApplicationManagementDAOFactory;
+
+public interface SubscriptionManagementHelperService {
+    SubscriptionDAO subscriptionDAO = ApplicationManagementDAOFactory.getSubscriptionDAO();
+    ApplicationDAO applicationDAO = ApplicationManagementDAOFactory.getApplicationDAO();
+    ApplicationReleaseDAO applicationReleaseDAO = ApplicationManagementDAOFactory.getApplicationReleaseDAO();
+
+    SubscriptionResponse getStatusBaseSubscriptions(SubscriptionInfo subscriptionInfo, int limit, int offset)
+            throws ApplicationManagementException;
+
+    SubscriptionResponse getSubscriptions(SubscriptionInfo subscriptionInfo, int limit, int offset)
+            throws ApplicationManagementException;
+
+    SubscriptionStatistics getSubscriptionStatistics(SubscriptionInfo subscriptionInfo)
+            throws ApplicationManagementException;
+}

components/device-mgt/io.entgra.device.mgt.core.device.mgt.common/src/main/java/io/entgra/device/mgt/core/device/mgt/common/Device.java

@@ -97,6 +97,10 @@ public class Device implements Serializable {
     public Device() {
     }
 
+    public Device(int id) {
+        this.id = id;
+    }
+
     public Device(String name, String type, String description, String deviceId, EnrolmentInfo enrolmentInfo,
                   List<Feature> features, List<Property> properties) {
         this.name = name;
@@ -268,7 +272,9 @@ public class Device implements Serializable {
 
         Device device = (Device) o;
 
-        return getDeviceIdentifier().equals(device.getDeviceIdentifier());
+        if (getDeviceIdentifier().equals(device.getDeviceIdentifier())) return true;
+
+        return getId() == device.getId();
 
     }
 

components/device-mgt/io.entgra.device.mgt.core.device.mgt.common/src/main/java/io/entgra/device/mgt/core/device/mgt/common/PaginationRequest.java

@@ -54,6 +54,7 @@ public class PaginationRequest {
     private List<String> statusList = new ArrayList<>();
     private OperationLogFilters operationLogFilters = new OperationLogFilters();
     private List<SortColumn> sortColumn = new ArrayList<>();
+    private int deviceTypeId;
     public OperationLogFilters getOperationLogFilters() {
         return operationLogFilters;
     }
@@ -292,4 +293,12 @@ public class PaginationRequest {
     public void setTabActionStatus(String tabActionStatus) {
         this.tabActionStatus = tabActionStatus;
     }
+
+    public int getDeviceTypeId() {
+        return deviceTypeId;
+    }
+
+    public void setDeviceTypeId(int deviceTypeId) {
+        this.deviceTypeId = deviceTypeId;
+    }
 }

components/device-mgt/io.entgra.device.mgt.core.device.mgt.core/src/main/java/io/entgra/device/mgt/core/device/mgt/core/dao/DeviceDAO.java

@@ -864,4 +864,19 @@ public interface DeviceDAO {
      * @throws DeviceManagementDAOException
      */
     int getCountOfDevicesNotInGroup(PaginationRequest request, int tenantId) throws DeviceManagementDAOException;
+
+    List<Integer> getDevicesNotInGivenIdList(PaginationRequest request, List<Integer> deviceIds, int tenantId)
+            throws DeviceManagementDAOException;
+
+    List<Integer> getDevicesInGivenIdList(PaginationRequest request, List<Integer> deviceIds, int tenantId)
+            throws DeviceManagementDAOException;
+
+    int getDeviceCountNotInGivenIdList(List<Integer> deviceIds, int tenantId)
+            throws DeviceManagementDAOException;
+
+    List<Device> getDevicesByDeviceIds(PaginationRequest paginationRequest, List<Integer> deviceIds, int tenantId)
+            throws DeviceManagementDAOException;
+
+    int getDeviceCountByDeviceIds(PaginationRequest paginationRequest, List<Integer> deviceIds, int tenantId)
+            throws DeviceManagementDAOException;
 }

components/device-mgt/io.entgra.device.mgt.core.device.mgt.core/src/main/java/io/entgra/device/mgt/core/device/mgt/core/dao/GroupDAO.java

@@ -488,4 +488,5 @@ public interface GroupDAO {
                                                int tenantId, String deviceOwner, String deviceName, String deviceStatus, int offset, int limit)
             throws GroupManagementDAOException;
 
+    int getDeviceCount(String groupName, int tenantId) throws GroupManagementDAOException;
 }

components/device-mgt/io.entgra.device.mgt.core.device.mgt.core/src/main/java/io/entgra/device/mgt/core/device/mgt/core/dao/impl/AbstractDeviceDAOImpl.java

@@ -54,6 +54,7 @@ import java.util.List;
 import java.util.Map;
 import java.util.StringJoiner;
 import java.util.Random;
+import java.util.stream.Collectors;
 
 public abstract class AbstractDeviceDAOImpl implements DeviceDAO {
 
@@ -3298,4 +3299,278 @@ public abstract class AbstractDeviceDAOImpl implements DeviceDAO {
             throw new DeviceManagementDAOException(msg, e);
         }
     }
+
+    @Override
+    public List<Integer> getDevicesNotInGivenIdList(PaginationRequest request, List<Integer> deviceIds, int tenantId)
+            throws DeviceManagementDAOException {
+        List<Integer> filteredDeviceIds = new ArrayList<>();
+        try {
+            Connection connection = getConnection();
+            String sql = "SELECT ID AS DEVICE_ID FROM DM_DEVICE WHERE TENANT_ID = ?";
+
+            if (deviceIds != null && !deviceIds.isEmpty()) {
+                sql += " AND ID NOT IN ( " + deviceIds.stream().map(id -> "?").collect(Collectors.joining(",")) + ")";
+            }
+
+            sql += " LIMIT ? OFFSET ?";
+
+            try (PreparedStatement preparedStatement = connection.prepareStatement(sql)) {
+                int paraIdx = 1;
+                preparedStatement.setInt(paraIdx++, tenantId);
+
+                if (deviceIds != null && !deviceIds.isEmpty()) {
+                    for (Integer deviceId : deviceIds) {
+                        preparedStatement.setInt(paraIdx++, deviceId);
+                    }
+                }
+
+                preparedStatement.setInt(paraIdx++, request.getRowCount());
+                preparedStatement.setInt(paraIdx, request.getStartIndex());
+                try (ResultSet resultSet = preparedStatement.executeQuery()) {
+                    while (resultSet.next()) {
+                        filteredDeviceIds.add(resultSet.getInt("DEVICE_ID"));
+                    }
+                }
+                return filteredDeviceIds;
+            }
+        } catch (SQLException e) {
+            String msg = "Error occurred while retrieving device ids not in: " + filteredDeviceIds;
+            log.error(msg, e);
+            throw new DeviceManagementDAOException(msg, e);
+        }
+    }
+
+    @Override
+    public List<Integer> getDevicesInGivenIdList(PaginationRequest request, List<Integer> deviceIds, int tenantId)
+            throws DeviceManagementDAOException {
+        List<Integer> filteredDeviceIds = new ArrayList<>();
+        if (deviceIds == null || deviceIds.isEmpty()) return filteredDeviceIds;
+
+        String deviceIdStringList = deviceIds.stream().map(id -> "?").collect(Collectors.joining(","));
+        try {
+            Connection connection = getConnection();
+            String sql = "SELECT ID AS DEVICE_ID " +
+                    "FROM DM_DEVICE " +
+                    "WHERE ID IN (" + deviceIdStringList + ")" +
+                    " AND TENANT_ID = ? " +
+                    "LIMIT ? " +
+                    "OFFSET ?";
+            try (PreparedStatement preparedStatement = connection.prepareStatement(sql)) {
+                int paraIdx = 1;
+                for (Integer deviceId : deviceIds) {
+                    preparedStatement.setInt(paraIdx++, deviceId);
+                }
+
+                preparedStatement.setInt(paraIdx++, tenantId);
+                preparedStatement.setInt(paraIdx++, request.getRowCount());
+                preparedStatement.setInt(paraIdx, request.getStartIndex());
+                try (ResultSet resultSet = preparedStatement.executeQuery()) {
+                    while (resultSet.next()) {
+                        filteredDeviceIds.add(resultSet.getInt("DEVICE_ID"));
+                    }
+                }
+                return filteredDeviceIds;
+            }
+        } catch (SQLException e) {
+            String msg = "Error occurred while retrieving device ids in: " + filteredDeviceIds;
+            log.error(msg, e);
+            throw new DeviceManagementDAOException(msg, e);
+        }
+    }
+
+    @Override
+    public int getDeviceCountNotInGivenIdList(List<Integer> deviceIds, int tenantId)
+            throws DeviceManagementDAOException {
+        int deviceCount = 0;
+        try {
+            Connection connection = getConnection();
+            String sql = "SELECT COUNT(ID) AS COUNT " +
+                    "FROM DM_DEVICE " +
+                    "WHERE TENANT_ID = ?";
+
+            if (deviceIds != null && !deviceIds.isEmpty()) {
+                sql += " AND ID NOT IN ( " + deviceIds.stream().map(id -> "?").collect(Collectors.joining(",")) + ")";
+            }
+
+            try (PreparedStatement preparedStatement = connection.prepareStatement(sql)) {
+                int paraIdx = 1;
+                preparedStatement.setInt(paraIdx++, tenantId);
+
+                if (deviceIds != null && !deviceIds.isEmpty()) {
+                    for (Integer deviceId : deviceIds) {
+                        preparedStatement.setInt(paraIdx++, deviceId);
+                    }
+                }
+
+                try (ResultSet resultSet = preparedStatement.executeQuery()) {
+                    if (resultSet.next()) {
+                        deviceCount = resultSet.getInt("COUNT");
+                    }
+                }
+                return deviceCount;
+            }
+        } catch (SQLException e) {
+            String msg = "Error occurred while retrieving device count";
+            log.error(msg, e);
+            throw new DeviceManagementDAOException(msg, e);
+        }
+    }
+
+    @Override
+    public List<Device> getDevicesByDeviceIds(PaginationRequest paginationRequest, List<Integer> deviceIds, int tenantId)
+            throws DeviceManagementDAOException {
+        List<Device> devices = new ArrayList<>();
+        if (deviceIds == null || deviceIds.isEmpty()) return devices;
+
+        String deviceIdStringList = deviceIds.stream().map(id -> "?").collect(Collectors.joining(","));
+        boolean isOwnerProvided = false;
+        boolean isDeviceStatusProvided = false;
+        boolean isDeviceNameProvided = false;
+        try {
+            Connection connection = getConnection();
+            String sql = "SELECT e.DEVICE_ID, " +
+                    "d.DEVICE_IDENTIFICATION, " +
+                    "e.STATUS, " +
+                    "e.OWNER, " +
+                    "d.NAME AS DEVICE_NAME, " +
+                    "e.DEVICE_TYPE, " +
+                    "e.OWNERSHIP, " +
+                    "e.DATE_OF_LAST_UPDATE " +
+                    "FROM DM_DEVICE d " +
+                    "INNER JOIN DM_ENROLMENT e " +
+                    "ON d.ID = e.DEVICE_ID " +
+                    "WHERE d.DEVICE_TYPE_ID = ? " +
+                    "AND d.TENANT_ID = ? " +
+                    "AND e.DEVICE_ID IN (" + deviceIdStringList+ ") " +
+                    "AND e.STATUS NOT IN ('DELETED', 'REMOVED')";
+
+            if (paginationRequest.getOwner() != null) {
+                sql = sql + " AND e.OWNER LIKE ?";
+                isOwnerProvided = true;
+            }
+
+            if (paginationRequest.getDeviceStatus() != null) {
+                sql = sql + " AND e.STATUS = ?";
+                isDeviceStatusProvided = true;
+            }
+
+            if (paginationRequest.getDeviceName() != null) {
+                sql = sql + " AND d.NAME LIKE ?";
+                isDeviceNameProvided = true;
+            }
+
+            sql = sql + " LIMIT ? OFFSET ?";
+
+            try (PreparedStatement preparedStatement = connection.prepareStatement(sql)) {
+                int parameterIdx = 1;
+                preparedStatement.setInt(parameterIdx++, paginationRequest.getDeviceTypeId());
+                preparedStatement.setInt(parameterIdx++, tenantId);
+
+                for (Integer deviceId : deviceIds) {
+                    preparedStatement.setInt(parameterIdx++, deviceId);
+                }
+
+                if (isOwnerProvided)
+                    preparedStatement.setString(parameterIdx++, "%" + paginationRequest.getOwner() + "%");
+                if (isDeviceStatusProvided)
+                    preparedStatement.setString(parameterIdx++, paginationRequest.getDeviceStatus());
+                if (isDeviceNameProvided)
+                    preparedStatement.setString(parameterIdx++, "%" + paginationRequest.getDeviceName() + "%");
+
+                preparedStatement.setInt(parameterIdx++, paginationRequest.getRowCount());
+                preparedStatement.setInt(parameterIdx, paginationRequest.getStartIndex());
+
+                try(ResultSet resultSet = preparedStatement.executeQuery()) {
+                    Device device;
+                    while(resultSet.next()) {
+                        device = new Device();
+                        device.setId(resultSet.getInt("DEVICE_ID"));
+                        device.setDeviceIdentifier(resultSet.getString("DEVICE_IDENTIFICATION"));
+                        device.setName(resultSet.getString("DEVICE_NAME"));
+                        device.setType(resultSet.getString("DEVICE_TYPE"));
+                        EnrolmentInfo enrolmentInfo = new EnrolmentInfo();
+                        enrolmentInfo.setStatus(EnrolmentInfo.Status.valueOf(resultSet.getString("STATUS")));
+                        enrolmentInfo.setOwner(resultSet.getString("OWNER"));
+                        enrolmentInfo.setOwnership(EnrolmentInfo.OwnerShip.valueOf(resultSet.getString("OWNERSHIP")));
+                        enrolmentInfo.setDateOfLastUpdate(resultSet.getTimestamp("DATE_OF_LAST_UPDATE").getTime());
+                        device.setEnrolmentInfo(enrolmentInfo);
+                        devices.add(device);
+                    }
+                }
+            }
+            return devices;
+        } catch (SQLException e) {
+            String msg = "Error occurred while retrieving devices for device ids in: " + deviceIds;
+            log.error(msg, e);
+            throw new DeviceManagementDAOException(msg, e);
+        }
+    }
+
+    // todo: fix the join query
+    @Override
+    public int getDeviceCountByDeviceIds(PaginationRequest paginationRequest, List<Integer> deviceIds, int tenantId)
+            throws DeviceManagementDAOException {
+        int deviceCount = 0;
+        if (deviceIds == null || deviceIds.isEmpty()) return deviceCount;
+
+        String deviceIdStringList = deviceIds.stream().map(id -> "?").collect(Collectors.joining(","));
+        boolean isOwnerProvided = false;
+        boolean isDeviceStatusProvided = false;
+        boolean isDeviceNameProvided = false;
+        try {
+            Connection connection = getConnection();
+            String sql = "SELECT COUNT(DISTINCT e.DEVICE_ID) AS COUNT " +
+                    "FROM DM_DEVICE d " +
+                    "INNER JOIN DM_ENROLMENT e " +
+                    "ON d.ID = e.DEVICE_ID " +
+                    "WHERE e.TENANT_ID = ? " +
+                    "AND e.DEVICE_ID IN (" + deviceIdStringList+ ") " +
+                    "AND d.DEVICE_TYPE_ID = ? " +
+                    "AND e.STATUS NOT IN ('DELETED', 'REMOVED')";
+
+            if (paginationRequest.getOwner() != null) {
+                sql = sql + " AND e.OWNER LIKE ?";
+                isOwnerProvided = true;
+            }
+
+            if (paginationRequest.getDeviceStatus() != null) {
+                sql = sql + " AND e.STATUS = ?";
+                isDeviceStatusProvided = true;
+            }
+
+            if (paginationRequest.getDeviceName() != null) {
+                sql = sql + " AND d.NAME LIKE ?";
+                isDeviceNameProvided = true;
+            }
+
+            try (PreparedStatement preparedStatement = connection.prepareStatement(sql)) {
+                int parameterIdx = 1;
+                preparedStatement.setInt(parameterIdx++, tenantId);
+
+                for (Integer deviceId : deviceIds) {
+                    preparedStatement.setInt(parameterIdx++, deviceId);
+                }
+
+                preparedStatement.setInt(parameterIdx++, paginationRequest.getDeviceTypeId());
+                if (isOwnerProvided)
+                    preparedStatement.setString(parameterIdx++, "%" + paginationRequest.getOwner() + "%");
+                if (isDeviceStatusProvided)
+                    preparedStatement.setString(parameterIdx++, paginationRequest.getDeviceStatus());
+                if (isDeviceNameProvided)
+                    preparedStatement.setString(parameterIdx, "%" + paginationRequest.getDeviceName() + "%");
+
+                try(ResultSet resultSet = preparedStatement.executeQuery()) {
+                    if (resultSet.next()) {
+                        deviceCount = resultSet.getInt("COUNT");
+                    }
+                }
+            }
+            return deviceCount;
+        } catch (SQLException e) {
+            String msg = "Error occurred while retrieving device count for device ids in: " + deviceIds;
+            log.error(msg, e);
+            throw new DeviceManagementDAOException(msg, e);
+        }
+    }
+
 }

components/device-mgt/io.entgra.device.mgt.core.device.mgt.core/src/main/java/io/entgra/device/mgt/core/device/mgt/core/dao/impl/AbstractEnrollmentDAOImpl.java

@@ -587,9 +587,9 @@ public abstract class AbstractEnrollmentDAOImpl implements EnrollmentDAO {
                         "d.NAME AS DEVICE_NAME, " +
                         "e.DEVICE_TYPE AS DEVICE_TYPE, " +
                         "e.DEVICE_IDENTIFICATION AS DEVICE_IDENTIFICATION " +
-                "FROM DM_ENROLMENT e " +
-                "JOIN DM_DEVICE d ON e.DEVICE_ID = d.ID " +
-                "WHERE e.OWNER = ? AND e.TENANT_ID = ? AND e.STATUS IN (" + deviceFilters + ")");
+                        "FROM DM_ENROLMENT e " +
+                        "JOIN DM_DEVICE d ON e.DEVICE_ID = d.ID " +
+                        "WHERE e.OWNER = ? AND e.TENANT_ID = ? AND e.STATUS IN (" + deviceFilters + ")");
 
         if (deviceTypeId != 0) {
             sql.append(" AND d.DEVICE_TYPE_ID = ?");
@@ -629,13 +629,6 @@ public abstract class AbstractEnrollmentDAOImpl implements EnrollmentDAO {
 
                 try (ResultSet rs = stmt.executeQuery()) {
                     while (rs.next()) {
-                        if (ownerDetails.getUserName() == null) {
-                            ownerDetails.setUserName(rs.getString("OWNER"));
-                        }
-                        ownerDetails.setDeviceStatus(rs.getString("DEVICE_STATUS"));
-                        ownerDetails.setDeviceNames(rs.getString("DEVICE_NAME"));
-                        ownerDetails.setDeviceTypes(rs.getString("DEVICE_TYPE"));
-                        ownerDetails.setDeviceIdentifiers(rs.getString("DEVICE_IDENTIFICATION"));
                         deviceIds.add(rs.getInt("DEVICE_ID"));
                         deviceCount++;
                     }
@@ -646,11 +639,95 @@ public abstract class AbstractEnrollmentDAOImpl implements EnrollmentDAO {
             log.error(msg, e);
             throw new DeviceManagementDAOException(msg, e);
         }
+        ownerDetails.setUserName(deviceOwner);
         ownerDetails.setDeviceIds(deviceIds);
         ownerDetails.setDeviceCount(deviceCount);
         return ownerDetails;
     }
 
+//    @Override
+//    public OwnerWithDeviceDTO getOwnersWithDevices(String owner, List<String> allowingDeviceStatuses, int tenantId,
+//                                                   int deviceTypeId, String deviceOwner, String deviceName,
+//                                                   String deviceStatus) throws DeviceManagementDAOException {
+//        Connection conn = null;
+//        OwnerWithDeviceDTO ownerDetails = new OwnerWithDeviceDTO();
+//        List<Integer> deviceIds = new ArrayList<>();
+//        int deviceCount = 0;
+//
+//        StringBuilder deviceFilters = new StringBuilder();
+//        for (int i = 0; i < allowingDeviceStatuses.size(); i++) {
+//            deviceFilters.append("?");
+//            if (i < allowingDeviceStatuses.size() - 1) {
+//                deviceFilters.append(",");
+//            }
+//        }
+//
+//        StringBuilder sql = new StringBuilder(
+//                "SELECT e.DEVICE_ID, " +
+//                        "e.OWNER, " +
+//                        "e.STATUS AS DEVICE_STATUS, " +
+//                        "d.NAME AS DEVICE_NAME, " +
+//                        "e.DEVICE_TYPE AS DEVICE_TYPE, " +
+//                        "e.DEVICE_IDENTIFICATION AS DEVICE_IDENTIFICATION " +
+//                "FROM DM_ENROLMENT e " +
+//                "JOIN DM_DEVICE d ON e.DEVICE_ID = d.ID " +
+//                "WHERE e.OWNER = ? AND e.TENANT_ID = ? AND d.DEVICE_TYPE_ID = ? AND e.STATUS IN (" + deviceFilters + ")");
+//
+//        if (deviceOwner != null && !deviceOwner.isEmpty()) {
+//            sql.append(" AND e.OWNER LIKE ?");
+//        }
+//        if (deviceName != null && !deviceName.isEmpty()) {
+//            sql.append(" AND d.NAME LIKE ?");
+//        }
+//        if (deviceStatus != null && !deviceStatus.isEmpty()) {
+//            sql.append(" AND e.STATUS = ?");
+//        }
+//
+//        try {
+//            conn = this.getConnection();
+//            try (PreparedStatement stmt = conn.prepareStatement(sql.toString())) {
+//                int index = 1;
+//                stmt.setString(index++, owner);
+//                stmt.setInt(index++, tenantId);
+//                stmt.setInt(index++, deviceTypeId);
+//                for (String status : allowingDeviceStatuses) {
+//                    stmt.setString(index++, status);
+//                }
+//
+//                if (deviceOwner != null && !deviceOwner.isEmpty()) {
+//                    stmt.setString(index++, "%" + deviceOwner + "%");
+//                }
+//                if (deviceName != null && !deviceName.isEmpty()) {
+//                    stmt.setString(index++, "%" + deviceName + "%");
+//                }
+//                if (deviceStatus != null && !deviceStatus.isEmpty()) {
+//                    stmt.setString(index++, deviceStatus);
+//                }
+//
+//                try (ResultSet rs = stmt.executeQuery()) {
+//                    while (rs.next()) {
+//                        if (ownerDetails.getUserName() == null) {
+//                            ownerDetails.setUserName(rs.getString("OWNER"));
+//                        }
+//                        ownerDetails.setDeviceStatus(rs.getString("DEVICE_STATUS"));
+//                        ownerDetails.setDeviceNames(rs.getString("DEVICE_NAME"));
+//                        ownerDetails.setDeviceTypes(rs.getString("DEVICE_TYPE"));
+//                        ownerDetails.setDeviceIdentifiers(rs.getString("DEVICE_IDENTIFICATION"));
+//                        deviceIds.add(rs.getInt("DEVICE_ID"));
+//                        deviceCount++;
+//                    }
+//                }
+//            }
+//        } catch (SQLException e) {
+//            String msg = "Error occurred while retrieving owners and device IDs for owner: " + owner;
+//            log.error(msg, e);
+//            throw new DeviceManagementDAOException(msg, e);
+//        }
+//        ownerDetails.setDeviceIds(deviceIds);
+//        ownerDetails.setDeviceCount(deviceCount);
+//        return ownerDetails;
+//    }
+
     @Override
     public OwnerWithDeviceDTO getOwnerWithDeviceByDeviceId(int deviceId, int tenantId, String deviceOwner, String deviceName,
                                                            String deviceStatus) throws DeviceManagementDAOException {

components/device-mgt/io.entgra.device.mgt.core.device.mgt.core/src/main/java/io/entgra/device/mgt/core/device/mgt/core/dao/impl/AbstractGroupDAOImpl.java

@@ -1496,9 +1496,7 @@ public abstract class AbstractGroupDAOImpl implements GroupDAO {
         if (deviceStatus != null && !deviceStatus.isEmpty()) {
             sql.append(" AND e.STATUS = ?");
         }
-
-        // Append limit and offset only if limit is not -1
-        if (limit != -1) {
+        if (limit >= 0 && offset >=0 ) {
             sql.append(" LIMIT ? OFFSET ?");
         }
 
@@ -1525,8 +1523,7 @@ public abstract class AbstractGroupDAOImpl implements GroupDAO {
                     stmt.setString(index++, deviceStatus);
                 }
 
-                // Set limit and offset parameters only if limit is not -1
-                if (limit != -1) {
+                if (limit >= 0 && offset >=0 ) {
                     stmt.setInt(index++, limit);
                     stmt.setInt(index++, offset);
                 }
@@ -1562,4 +1559,29 @@ public abstract class AbstractGroupDAOImpl implements GroupDAO {
             throw new GroupManagementDAOException(msg, e);
         }
     }
+
+    @Override
+    public int getDeviceCount(String groupName, int tenantId) throws GroupManagementDAOException {
+        int deviceCount = 0;
+        try {
+            Connection connection = GroupManagementDAOFactory.getConnection();
+            String sql = "SELECT COUNT(d.ID) AS COUNT FROM DM_GROUP d INNER JOIN " +
+                    "DM_DEVICE_GROUP_MAP m ON  " +
+                    "d.ID = m.GROUP_ID WHERE d.TENANT_ID = ? AND d.GROUP_NAME = ?";
+            try (PreparedStatement preparedStatement = connection.prepareStatement(sql)) {
+                preparedStatement.setInt(1, tenantId);
+                preparedStatement.setString(2, groupName);
+                try (ResultSet resultSet = preparedStatement.executeQuery()) {
+                    if (resultSet.next()) {
+                        deviceCount = resultSet.getInt("COUNT");
+                    }
+                }
+            }
+            return deviceCount;
+        } catch (SQLException e) {
+            String msg = "Error occurred while retrieving device count for the group: " + groupName;
+            log.error(msg, e);
+            throw new GroupManagementDAOException(msg, e);
+        }
+    }
 }

components/device-mgt/io.entgra.device.mgt.core.device.mgt.core/src/main/java/io/entgra/device/mgt/core/device/mgt/core/dao/impl/device/GenericDeviceDAOImpl.java

@@ -42,6 +42,7 @@ import java.util.Date;
 import java.util.List;
 import java.util.StringJoiner;
 import java.util.Map;
+import java.util.stream.Collectors;
 
 /**
  * This class holds the generic implementation of DeviceDAO which can be used to support ANSI db syntax.
@@ -457,6 +458,7 @@ public class GenericDeviceDAOImpl extends AbstractDeviceDAOImpl {
                     "e.ID AS ENROLMENT_ID " +
                     "FROM DM_ENROLMENT e, " +
                     "(SELECT d.ID, " +
+                    "d.LAST_UPDATED_TIMESTAMP, " +
                     "d.DEVICE_IDENTIFICATION " +
                     "FROM DM_DEVICE d WHERE d.TENANT_ID = ?) d1 " +
                     "WHERE d1.ID = e.DEVICE_ID AND e.TENANT_ID = ? ";
@@ -1857,4 +1859,156 @@ public class GenericDeviceDAOImpl extends AbstractDeviceDAOImpl {
         }
     }
 
+    @Override
+    public List<Device> getDevicesByDeviceIds(PaginationRequest paginationRequest, List<Integer> deviceIds, int tenantId)
+            throws DeviceManagementDAOException {
+        List<Device> devices = new ArrayList<>();
+        if (deviceIds == null || deviceIds.isEmpty()) return devices;
+
+        String deviceIdStringList = deviceIds.stream().map(id -> "?").collect(Collectors.joining(","));
+        boolean isOwnerProvided = false;
+        boolean isDeviceStatusProvided = false;
+        boolean isDeviceNameProvided = false;
+        try {
+            Connection connection = getConnection();
+            String sql = "SELECT e.DEVICE_ID, " +
+                    "d.DEVICE_IDENTIFICATION, " +
+                    "e.STATUS, " +
+                    "e.OWNER, " +
+                    "d.NAME AS DEVICE_NAME, " +
+                    "e.DEVICE_TYPE, " +
+                    "e.OWNERSHIP, " +
+                    "e.DATE_OF_LAST_UPDATE " +
+                    "FROM DM_DEVICE d " +
+                    "INNER JOIN DM_ENROLMENT e " +
+                    "WHERE d.ID = e.DEVICE_ID " +
+                    "AND d.TENANT_ID = ? " +
+                    "AND e.DEVICE_ID IN (" + deviceIdStringList+ ") " +
+                    "AND e.STATUS NOT IN ('DELETED', 'REMOVED')";
+            if (paginationRequest.getOwner() != null) {
+                sql = sql + " AND e.OWNER LIKE ?";
+                isOwnerProvided = true;
+            }
+            if (paginationRequest.getDeviceStatus() != null) {
+                sql = sql + " AND e.STATUS = ?";
+                isDeviceStatusProvided = true;
+            }
+            if (paginationRequest.getDeviceName() != null) {
+                sql = sql + " AND d.NAME LIKE ?";
+                isDeviceNameProvided = true;
+            }
+            sql = sql + " LIMIT ? OFFSET ?";
+            try (PreparedStatement preparedStatement = connection.prepareStatement(sql)) {
+                int parameterIdx = 1;
+                preparedStatement.setInt(parameterIdx++, tenantId);
+                for (Integer deviceId : deviceIds) {
+                    preparedStatement.setInt(parameterIdx++, deviceId);
+                }
+                if (isOwnerProvided)
+                    preparedStatement.setString(parameterIdx++, "%" + paginationRequest.getOwner() + "%");
+                if (isDeviceStatusProvided)
+                    preparedStatement.setString(parameterIdx++, paginationRequest.getDeviceStatus());
+                if (isDeviceNameProvided)
+                    preparedStatement.setString(parameterIdx++, "%" + paginationRequest.getDeviceName() + "%");
+                preparedStatement.setInt(parameterIdx++, paginationRequest.getRowCount());
+                preparedStatement.setInt(parameterIdx, paginationRequest.getStartIndex());
+                try(ResultSet resultSet = preparedStatement.executeQuery()) {
+                    Device device;
+                    while(resultSet.next()) {
+                        device = new Device();
+                        device.setId(resultSet.getInt("DEVICE_ID"));
+                        device.setDeviceIdentifier(resultSet.getString("DEVICE_IDENTIFICATION"));
+                        device.setName(resultSet.getString("DEVICE_NAME"));
+                        device.setType(resultSet.getString("DEVICE_TYPE"));
+                        EnrolmentInfo enrolmentInfo = new EnrolmentInfo();
+                        enrolmentInfo.setStatus(EnrolmentInfo.Status.valueOf(resultSet.getString("STATUS")));
+                        enrolmentInfo.setOwner(resultSet.getString("OWNER"));
+                        enrolmentInfo.setOwnership(EnrolmentInfo.OwnerShip.valueOf(resultSet.getString("OWNERSHIP")));
+                        enrolmentInfo.setDateOfLastUpdate(resultSet.getTimestamp("DATE_OF_LAST_UPDATE").getTime());
+                        device.setEnrolmentInfo(enrolmentInfo);
+                        devices.add(device);
+                    }
+                }
+            }
+            return devices;
+        } catch (SQLException e) {
+            String msg = "Error occurred while retrieving devices for device ids in: " + deviceIds;
+            log.error(msg, e);
+            throw new DeviceManagementDAOException(msg, e);
+        }
+    }
+
+    @Override
+    public List<Integer> getDevicesInGivenIdList(PaginationRequest request, List<Integer> deviceIds, int tenantId)
+            throws DeviceManagementDAOException {
+        List<Integer> filteredDeviceIds = new ArrayList<>();
+        if (deviceIds == null || deviceIds.isEmpty()) return filteredDeviceIds;
+        String deviceIdStringList = deviceIds.stream().map(id -> "?").collect(Collectors.joining(","));
+        try {
+            Connection connection = getConnection();
+            String sql = "SELECT ID AS DEVICE_ID " +
+                    "FROM DM_DEVICE WHERE ID IN " +
+                    "(" + deviceIdStringList + ") " +
+                    "AND TENANT_ID = ? " +
+                    "LIMIT ? " +
+                    "OFFSET ?";
+            try (PreparedStatement preparedStatement = connection.prepareStatement(sql)) {
+                int paraIdx = 1;
+                for (Integer deviceId : deviceIds) {
+                    preparedStatement.setInt(paraIdx++, deviceId);
+                }
+                preparedStatement.setInt(paraIdx++, tenantId);
+                preparedStatement.setInt(paraIdx++, request.getRowCount());
+                preparedStatement.setInt(paraIdx, request.getStartIndex());
+                try (ResultSet resultSet = preparedStatement.executeQuery()) {
+                    while (resultSet.next()) {
+                        filteredDeviceIds.add(resultSet.getInt("DEVICE_ID"));
+                    }
+                }
+                return filteredDeviceIds;
+            }
+        } catch (SQLException e) {
+            String msg = "Error occurred while retrieving device ids in: " + filteredDeviceIds;
+            log.error(msg, e);
+            throw new DeviceManagementDAOException(msg, e);
+        }
+    }
+
+    @Override
+    public List<Integer> getDevicesNotInGivenIdList(PaginationRequest request, List<Integer> deviceIds, int tenantId)
+            throws DeviceManagementDAOException {
+        List<Integer> filteredDeviceIds = new ArrayList<>();
+        try {
+            Connection connection = getConnection();
+            String sql = "SELECT ID AS DEVICE_ID " +
+                    "FROM DM_DEVICE" +
+                    " WHERE TENANT_ID = ?";
+
+            if (deviceIds != null && !deviceIds.isEmpty()) {
+                sql += " AND ID NOT IN ( " + deviceIds.stream().map(id -> "?").collect(Collectors.joining(",")) + ")";
+            }
+            sql += " LIMIT ? OFFSET ?";
+            try (PreparedStatement preparedStatement = connection.prepareStatement(sql)) {
+                int paraIdx = 1;
+                preparedStatement.setInt(paraIdx++, tenantId);
+                if (deviceIds != null && !deviceIds.isEmpty()) {
+                    for (Integer deviceId : deviceIds) {
+                        preparedStatement.setInt(paraIdx++, deviceId);
+                    }
+                }
+                preparedStatement.setInt(paraIdx++, request.getRowCount());
+                preparedStatement.setInt(paraIdx, request.getStartIndex());
+                try (ResultSet resultSet = preparedStatement.executeQuery()) {
+                    while (resultSet.next()) {
+                        filteredDeviceIds.add(resultSet.getInt("DEVICE_ID"));
+                    }
+                }
+                return filteredDeviceIds;
+            }
+        } catch (SQLException e) {
+            String msg = "Error occurred while retrieving device ids not in: " + filteredDeviceIds;
+            log.error(msg, e);
+            throw new DeviceManagementDAOException(msg, e);
+        }
+    }
 }

components/device-mgt/io.entgra.device.mgt.core.device.mgt.core/src/main/java/io/entgra/device/mgt/core/device/mgt/core/dao/impl/device/OracleDeviceDAOImpl.java

@@ -20,6 +20,7 @@ package io.entgra.device.mgt.core.device.mgt.core.dao.impl.device;
 
 import io.entgra.device.mgt.core.device.mgt.common.Device;
 import io.entgra.device.mgt.core.device.mgt.common.EnrolmentInfo;
+import io.entgra.device.mgt.core.device.mgt.common.PaginationRequest;
 import io.entgra.device.mgt.core.device.mgt.core.dao.DeviceManagementDAOException;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
@@ -28,7 +29,9 @@ import java.sql.Connection;
 import java.sql.PreparedStatement;
 import java.sql.ResultSet;
 import java.sql.SQLException;
+import java.util.ArrayList;
 import java.util.List;
+import java.util.stream.Collectors;
 
 /**
  * This class holds the generic implementation of DeviceDAO which can be used to support ANSI db syntax.
@@ -69,4 +72,162 @@ public class OracleDeviceDAOImpl extends SQLServerDeviceDAOImpl {
         }
     }
 
+    @Override
+    public List<Device> getDevicesByDeviceIds(PaginationRequest paginationRequest, List<Integer> deviceIds, int tenantId)
+            throws DeviceManagementDAOException {
+        List<Device> devices = new ArrayList<>();
+        if (deviceIds == null || deviceIds.isEmpty()) return devices;
+
+        String deviceIdStringList = deviceIds.stream().map(id -> "?").collect(Collectors.joining(","));
+        boolean isOwnerProvided = false;
+        boolean isDeviceStatusProvided = false;
+        boolean isDeviceNameProvided = false;
+        try {
+            Connection connection = getConnection();
+            String sql = "SELECT e.DEVICE_ID, " +
+                    "d.DEVICE_IDENTIFICATION, " +
+                    "e.STATUS, " +
+                    "e.OWNER, " +
+                    "d.NAME AS DEVICE_NAME, " +
+                    "e.DEVICE_TYPE, " +
+                    "e.OWNERSHIP, " +
+                    "e.DATE_OF_LAST_UPDATE " +
+                    "FROM DM_DEVICE d " +
+                    "INNER JOIN DM_ENROLMENT e " +
+                    "ON d.ID = e.DEVICE_ID " +
+                    "WHERE d.TENANT_ID = ? " +
+                    "AND e.DEVICE_ID IN (" + deviceIdStringList + ") " +
+                    "AND e.STATUS NOT IN ('DELETED', 'REMOVED')";
+            if (paginationRequest.getOwner() != null) {
+                sql += " AND e.OWNER LIKE ?";
+                isOwnerProvided = true;
+            }
+            if (paginationRequest.getDeviceStatus() != null) {
+                sql += " AND e.STATUS = ?";
+                isDeviceStatusProvided = true;
+            }
+            if (paginationRequest.getDeviceName() != null) {
+                sql += " AND d.NAME LIKE ?";
+                isDeviceNameProvided = true;
+            }
+            sql += " OFFSET ? ROWS FETCH NEXT ? ROWS ONLY";
+            try (PreparedStatement preparedStatement = connection.prepareStatement(sql)) {
+                int parameterIdx = 1;
+                preparedStatement.setInt(parameterIdx++, tenantId);
+                for (Integer deviceId : deviceIds) {
+                    preparedStatement.setInt(parameterIdx++, deviceId);
+                }
+                if (isOwnerProvided) {
+                    preparedStatement.setString(parameterIdx++, "%" + paginationRequest.getOwner() + "%");
+                }
+                if (isDeviceStatusProvided) {
+                    preparedStatement.setString(parameterIdx++, paginationRequest.getDeviceStatus());
+                }
+                if (isDeviceNameProvided) {
+                    preparedStatement.setString(parameterIdx++, "%" + paginationRequest.getDeviceName() + "%");
+                }
+                preparedStatement.setInt(parameterIdx++, paginationRequest.getStartIndex());
+                preparedStatement.setInt(parameterIdx, paginationRequest.getRowCount());
+                try (ResultSet resultSet = preparedStatement.executeQuery()) {
+                    while (resultSet.next()) {
+                        Device device = new Device();
+                        device.setId(resultSet.getInt("DEVICE_ID"));
+                        device.setDeviceIdentifier(resultSet.getString("DEVICE_IDENTIFICATION"));
+                        device.setName(resultSet.getString("DEVICE_NAME"));
+                        device.setType(resultSet.getString("DEVICE_TYPE"));
+                        EnrolmentInfo enrolmentInfo = new EnrolmentInfo();
+                        enrolmentInfo.setStatus(EnrolmentInfo.Status.valueOf(resultSet.getString("STATUS")));
+                        enrolmentInfo.setOwner(resultSet.getString("OWNER"));
+                        enrolmentInfo.setOwnership(EnrolmentInfo.OwnerShip.valueOf(resultSet.getString("OWNERSHIP")));
+                        enrolmentInfo.setDateOfLastUpdate(resultSet.getTimestamp("DATE_OF_LAST_UPDATE").getTime());
+                        device.setEnrolmentInfo(enrolmentInfo);
+                        devices.add(device);
+                    }
+                }
+            }
+            return devices;
+        } catch (SQLException e) {
+            String msg = "Error occurred while retrieving devices for device ids in: " + deviceIds;
+            log.error(msg, e);
+            throw new DeviceManagementDAOException(msg, e);
+        }
+    }
+
+    @Override
+    public List<Integer> getDevicesInGivenIdList(PaginationRequest request, List<Integer> deviceIds, int tenantId)
+            throws DeviceManagementDAOException {
+        List<Integer> filteredDeviceIds = new ArrayList<>();
+        if (deviceIds == null || deviceIds.isEmpty()) return filteredDeviceIds;
+
+        String deviceIdStringList = deviceIds.stream().map(id -> "?").collect(Collectors.joining(","));
+        try {
+            Connection connection = getConnection();
+            String sql = "SELECT ID AS DEVICE_ID " +
+                    "FROM DM_DEVICE WHERE ID IN " +
+                    "(" + deviceIdStringList + ") " +
+                    "AND TENANT_ID = ? " +
+                    "OFFSET ? ROWS FETCH NEXT ? ROWS ONLY";
+            try (PreparedStatement preparedStatement = connection.prepareStatement(sql)) {
+                int paraIdx = 1;
+                for (Integer deviceId : deviceIds) {
+                    preparedStatement.setInt(paraIdx++, deviceId);
+                }
+                preparedStatement.setInt(paraIdx++, tenantId);
+                preparedStatement.setInt(paraIdx++, request.getStartIndex());
+                preparedStatement.setInt(paraIdx, request.getRowCount());
+
+                try (ResultSet resultSet = preparedStatement.executeQuery()) {
+                    while (resultSet.next()) {
+                        filteredDeviceIds.add(resultSet.getInt("DEVICE_ID"));
+                    }
+                }
+                return filteredDeviceIds;
+            }
+        } catch (SQLException e) {
+            String msg = "Error occurred while retrieving device ids in: " + deviceIds;
+            log.error(msg, e);
+            throw new DeviceManagementDAOException(msg, e);
+        }
+    }
+
+    @Override
+    public List<Integer> getDevicesNotInGivenIdList(PaginationRequest request, List<Integer> deviceIds, int tenantId)
+            throws DeviceManagementDAOException {
+        List<Integer> filteredDeviceIds = new ArrayList<>();
+        try {
+            Connection connection = getConnection();
+            String sql = "SELECT ID AS DEVICE_ID " +
+                    "FROM DM_DEVICE " +
+                    "WHERE TENANT_ID = ?";
+
+            if (deviceIds != null && !deviceIds.isEmpty()) {
+                sql += " AND ID NOT IN (" + deviceIds.stream().map(id -> "?").collect(Collectors.joining(",")) + ")";
+            }
+
+            sql += "OFFSET ? ROWS FETCH NEXT ? ROWS ONLY";
+
+            try (PreparedStatement preparedStatement = connection.prepareStatement(sql)) {
+                int paraIdx = 1;
+                preparedStatement.setInt(paraIdx++, tenantId);
+                if (deviceIds != null && !deviceIds.isEmpty()) {
+                    for (Integer deviceId : deviceIds) {
+                        preparedStatement.setInt(paraIdx++, deviceId);
+                    }
+                }
+                preparedStatement.setInt(paraIdx++, request.getStartIndex());
+                preparedStatement.setInt(paraIdx, request.getRowCount());
+
+                try (ResultSet resultSet = preparedStatement.executeQuery()) {
+                    while (resultSet.next()) {
+                        filteredDeviceIds.add(resultSet.getInt("DEVICE_ID"));
+                    }
+                }
+                return filteredDeviceIds;
+            }
+        } catch (SQLException e) {
+            String msg = "Error occurred while retrieving device ids not in: " + deviceIds;
+            log.error(msg, e);
+            throw new DeviceManagementDAOException(msg, e);
+        }
+    }
 }

components/device-mgt/io.entgra.device.mgt.core.device.mgt.core/src/main/java/io/entgra/device/mgt/core/device/mgt/core/service/DeviceManagementProviderService.java

@@ -1152,4 +1152,16 @@ public interface DeviceManagementProviderService {
      */
     Device updateDeviceName(Device device, String deviceType, String deviceId)
             throws DeviceManagementException, DeviceNotFoundException, ConflictException;
+
+    List<Integer> getDevicesNotInGivenIdList(List<Integer> deviceIds, PaginationRequest paginationRequest)
+            throws DeviceManagementException;
+
+    List<Integer> getDevicesInGivenIdList(List<Integer> deviceIds, PaginationRequest paginationRequest)
+            throws DeviceManagementException;
+    int getDeviceCountNotInGivenIdList(List<Integer> deviceIds) throws DeviceManagementException;
+
+    List<Device> getDevicesByDeviceIds(PaginationRequest paginationRequest, List<Integer> deviceIds)
+            throws DeviceManagementException;
+    public int getDeviceCountByDeviceIds(PaginationRequest paginationRequest, List<Integer> deviceIds)
+            throws DeviceManagementException;
 }

components/device-mgt/io.entgra.device.mgt.core.device.mgt.core/src/main/java/io/entgra/device/mgt/core/device/mgt/core/service/DeviceManagementProviderServiceImpl.java

@@ -161,6 +161,7 @@ import javax.xml.bind.Marshaller;
 import java.io.IOException;
 import java.io.StringWriter;
 import java.lang.reflect.Type;
+import java.sql.Array;
 import java.sql.SQLException;
 import java.sql.Timestamp;
 import java.time.LocalDateTime;
@@ -5359,25 +5360,13 @@ public class DeviceManagementProviderServiceImpl implements DeviceManagementProv
         int tenantId = PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId(true);
         OwnerWithDeviceDTO ownerWithDeviceDTO;
 
-        List<String> allowingDeviceStatuses = new ArrayList<>();
-        allowingDeviceStatuses.add(EnrolmentInfo.Status.ACTIVE.toString());
-        allowingDeviceStatuses.add(EnrolmentInfo.Status.INACTIVE.toString());
-        allowingDeviceStatuses.add(EnrolmentInfo.Status.UNREACHABLE.toString());
+        List<String> allowingDeviceStatuses = Arrays.asList(EnrolmentInfo.Status.ACTIVE.toString(),
+                EnrolmentInfo.Status.INACTIVE.toString(), EnrolmentInfo.Status.UNREACHABLE.toString());
 
         try {
             DeviceManagementDAOFactory.openConnection();
-            ownerWithDeviceDTO = this.enrollmentDAO.getOwnersWithDevices(owner, allowingDeviceStatuses, tenantId, deviceTypeId, deviceOwner, deviceName, deviceStatus);
-            if (ownerWithDeviceDTO == null) {
-                String msg = "No data found for owner: " + owner;
-                log.error(msg);
-                throw new DeviceManagementDAOException(msg);
-            }
-            List<Integer> deviceIds = ownerWithDeviceDTO.getDeviceIds();
-            if (deviceIds != null) {
-                ownerWithDeviceDTO.setDeviceCount(deviceIds.size());
-            } else {
-                ownerWithDeviceDTO.setDeviceCount(0);
-            }
+            ownerWithDeviceDTO = this.enrollmentDAO.getOwnersWithDevices(owner, allowingDeviceStatuses,
+                    tenantId, deviceTypeId, deviceOwner, deviceName, deviceStatus);
         } catch (DeviceManagementDAOException | SQLException e) {
             String msg = "Error occurred while retrieving device IDs for owner: " + owner;
             log.error(msg, e);
@@ -5388,6 +5377,41 @@ public class DeviceManagementProviderServiceImpl implements DeviceManagementProv
         return ownerWithDeviceDTO;
     }
 
+//    @Override
+//    public OwnerWithDeviceDTO getOwnersWithDeviceIds(String owner, int deviceTypeId, String deviceOwner, String deviceName, String deviceStatus)
+//            throws DeviceManagementDAOException {
+//        int tenantId = PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId(true);
+//        OwnerWithDeviceDTO ownerWithDeviceDTO;
+//
+//        List<String> allowingDeviceStatuses = new ArrayList<>();
+//        allowingDeviceStatuses.add(EnrolmentInfo.Status.ACTIVE.toString());
+//        allowingDeviceStatuses.add(EnrolmentInfo.Status.INACTIVE.toString());
+//        allowingDeviceStatuses.add(EnrolmentInfo.Status.UNREACHABLE.toString());
+//
+//        try {
+//            DeviceManagementDAOFactory.openConnection();
+//            ownerWithDeviceDTO = this.enrollmentDAO.getOwnersWithDevices(owner, allowingDeviceStatuses, tenantId, deviceTypeId, deviceOwner, deviceName, deviceStatus);
+//            if (ownerWithDeviceDTO == null) {
+//                String msg = "No data found for owner: " + owner;
+//                log.error(msg);
+//                throw new DeviceManagementDAOException(msg);
+//            }
+//            List<Integer> deviceIds = ownerWithDeviceDTO.getDeviceIds();
+//            if (deviceIds != null) {
+//                ownerWithDeviceDTO.setDeviceCount(deviceIds.size());
+//            } else {
+//                ownerWithDeviceDTO.setDeviceCount(0);
+//            }
+//        } catch (DeviceManagementDAOException | SQLException e) {
+//            String msg = "Error occurred while retrieving device IDs for owner: " + owner;
+//            log.error(msg, e);
+//            throw new DeviceManagementDAOException(msg, e);
+//        } finally {
+//            DeviceManagementDAOFactory.closeConnection();
+//        }
+//        return ownerWithDeviceDTO;
+//    }
+
 
     @Override
     public OwnerWithDeviceDTO getOwnerWithDeviceByDeviceId(int deviceId, String deviceOwner, String deviceName, String deviceStatus)
@@ -5568,4 +5592,130 @@ public class DeviceManagementProviderServiceImpl implements DeviceManagementProv
             DeviceManagementDAOFactory.closeConnection();
         }
     }
+
+    @Override
+    public List<Integer> getDevicesNotInGivenIdList(List<Integer> deviceIds, PaginationRequest paginationRequest)
+            throws DeviceManagementException {
+        int tenantId = PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId();
+        if (paginationRequest == null) {
+            String msg = "Received null for pagination request";
+            log.error(msg);
+            throw new DeviceManagementException(msg);
+        }
+
+        try {
+            DeviceManagementDAOFactory.openConnection();
+            return deviceDAO.getDevicesNotInGivenIdList(paginationRequest, deviceIds, tenantId);
+        } catch (DeviceManagementDAOException e) {
+            String msg = "Error encountered while getting device ids";
+            log.error(msg, e);
+            throw new DeviceManagementException(msg, e);
+        } catch (SQLException e) {
+            String msg = "Error encountered while getting the database connection";
+            log.error(msg, e);
+            throw new DeviceManagementException(msg, e);
+        } finally {
+            DeviceManagementDAOFactory.closeConnection();
+        }
+    }
+
+    @Override
+    public List<Integer> getDevicesInGivenIdList(List<Integer> deviceIds, PaginationRequest paginationRequest)
+            throws DeviceManagementException {
+
+        int tenantId = PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId();
+        if (paginationRequest == null) {
+            String msg = "Received null for pagination request";
+            log.error(msg);
+            throw new DeviceManagementException(msg);
+        }
+
+        try {
+            DeviceManagementDAOFactory.openConnection();
+            return deviceDAO.getDevicesInGivenIdList(paginationRequest, deviceIds, tenantId);
+        } catch (DeviceManagementDAOException e) {
+            String msg = "Error encountered while getting device ids";
+            log.error(msg, e);
+            throw new DeviceManagementException(msg, e);
+        } catch (SQLException e) {
+            String msg = "Error encountered while getting the database connection";
+            log.error(msg, e);
+            throw new DeviceManagementException(msg, e);
+        } finally {
+            DeviceManagementDAOFactory.closeConnection();
+        }
+    }
+
+    @Override
+    public int getDeviceCountNotInGivenIdList(List<Integer> deviceIds)
+            throws DeviceManagementException {
+
+        int tenantId = PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId();
+        try {
+            DeviceManagementDAOFactory.openConnection();
+            return deviceDAO.getDeviceCountNotInGivenIdList(deviceIds, tenantId);
+        } catch (DeviceManagementDAOException e) {
+            String msg = "Error encountered while getting device ids";
+            log.error(msg, e);
+            throw new DeviceManagementException(msg, e);
+        } catch (SQLException e) {
+            String msg = "Error encountered while getting the database connection";
+            log.error(msg, e);
+            throw new DeviceManagementException(msg, e);
+        } finally {
+            DeviceManagementDAOFactory.closeConnection();
+        }
+    }
+
+    @Override
+    public List<Device> getDevicesByDeviceIds(PaginationRequest paginationRequest, List<Integer> deviceIds)
+            throws DeviceManagementException {
+        int tenantId = PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId();
+        if (paginationRequest == null) {
+            String msg = "Received null for pagination request";
+            log.error(msg);
+            throw new DeviceManagementException(msg);
+        }
+
+        try {
+            DeviceManagementDAOFactory.openConnection();
+            return deviceDAO.getDevicesByDeviceIds(paginationRequest, deviceIds, tenantId);
+        } catch (DeviceManagementDAOException e) {
+            String msg = "Error encountered while getting devices for device ids in " + deviceIds;
+            log.error(msg, e);
+            throw new DeviceManagementException(msg, e);
+        } catch (SQLException e) {
+            String msg = "Error encountered while getting the database connection";
+            log.error(msg, e);
+            throw new DeviceManagementException(msg, e);
+        } finally {
+            DeviceManagementDAOFactory.closeConnection();
+        }
+    }
+
+    @Override
+    public int getDeviceCountByDeviceIds(PaginationRequest paginationRequest, List<Integer> deviceIds)
+            throws DeviceManagementException {
+        int tenantId = PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId();
+        if (paginationRequest == null) {
+            String msg = "Received null for pagination request";
+            log.error(msg);
+            throw new DeviceManagementException(msg);
+        }
+
+        try {
+            DeviceManagementDAOFactory.openConnection();
+            return deviceDAO.getDeviceCountByDeviceIds(paginationRequest, deviceIds, tenantId);
+        } catch (DeviceManagementDAOException e) {
+            String msg = "Error encountered while getting devices for device ids in " + deviceIds;
+            log.error(msg, e);
+            throw new DeviceManagementException(msg, e);
+        } catch (SQLException e) {
+            String msg = "Error encountered while getting the database connection";
+            log.error(msg, e);
+            throw new DeviceManagementException(msg, e);
+        } finally {
+            DeviceManagementDAOFactory.closeConnection();
+        }
+    }
 }

components/device-mgt/io.entgra.device.mgt.core.device.mgt.core/src/main/java/io/entgra/device/mgt/core/device/mgt/core/service/GroupManagementProviderService.java

@@ -30,6 +30,7 @@ import io.entgra.device.mgt.core.device.mgt.common.group.mgt.GroupAlreadyExistEx
 import io.entgra.device.mgt.core.device.mgt.common.group.mgt.GroupManagementException;
 import io.entgra.device.mgt.core.device.mgt.common.group.mgt.GroupNotExistException;
 import io.entgra.device.mgt.core.device.mgt.common.group.mgt.RoleDoesNotExistException;
+import io.entgra.device.mgt.core.device.mgt.core.dao.GroupManagementDAOException;
 import io.entgra.device.mgt.core.device.mgt.core.dto.GroupDetailsDTO;
 import org.wso2.carbon.user.api.AuthorizationManager;
 import org.wso2.carbon.user.api.UserStoreManager;
@@ -389,4 +390,6 @@ public interface GroupManagementProviderService {
     GroupDetailsDTO getGroupDetailsWithDevices(String groupName, int deviceTypeId, String deviceOwner, String deviceName, String deviceStatus,
                                                int offset, int limit) throws GroupManagementException;
 
+    int getDeviceCount(String groupName) throws GroupManagementException;
+
 }

components/device-mgt/io.entgra.device.mgt.core.device.mgt.core/src/main/java/io/entgra/device/mgt/core/device/mgt/core/service/GroupManagementProviderServiceImpl.java

@@ -1725,4 +1725,18 @@ public class GroupManagementProviderServiceImpl implements GroupManagementProvid
         return groupDetailsWithDevices;
     }
 
+    @Override
+    public int getDeviceCount(String groupName) throws GroupManagementException {
+        int tenantId = PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId();
+        try {
+            GroupManagementDAOFactory.openConnection();
+            return groupDAO.getDeviceCount(groupName, tenantId);
+        } catch (SQLException | GroupManagementDAOException e) {
+            String msg = "Error occurred while retrieving device count.";
+            log.error(msg, e);
+            throw new GroupManagementException(msg, e);
+        } finally {
+            GroupManagementDAOFactory.closeConnection();
+        }
+    }
 }