Add app release inserting API

components/application-mgt/org.wso2.carbon.device.application.mgt.common/src/main/java/org/wso2/carbon/device/application/mgt/common/services/ApplicationManager.java

@@ -93,7 +93,7 @@ public interface ApplicationManager {
     String getUuidOfLatestRelease(int appId) throws ApplicationManagementException;
 
     /**
-     * To get Application with the given Id.
+     * To get the Application for given Id.
      *
      * @param id id of the Application
      * @param state state of the Application
@@ -102,6 +102,16 @@ public interface ApplicationManager {
      */
     Application getApplicationById(int id, String state) throws ApplicationManagementException;
 
+    /**
+     * To get the Application for given application relase UUID.
+     *
+     * @param uuid UUID of the Application
+     * @param state state of the Application
+     * @return the Application identified by the ID
+     * @throws ApplicationManagementException Application Management Exception.
+     */
+    Application getApplicationByUuid(String uuid, String state) throws ApplicationManagementException;
+
     /**
      * To get an application associated with the release.
      *
@@ -146,11 +156,9 @@ public interface ApplicationManager {
      * @param releaseUuid UUID of the Application Release.
      * @param state Lifecycle state to change the app
      * @param checkExist whether it is needed to check if the app and release already exist in the database
-     * @param handleDBConnections Whether it is necessary to open connections
      * @throws ApplicationManagementException Application Management Exception.
      */
-    void changeLifecycleState(int applicationId, String releaseUuid, LifecycleState state, Boolean checkExist,
-                              Boolean handleDBConnections)
+    void changeLifecycleState(int applicationId, String releaseUuid, LifecycleState state, Boolean checkExist)
             throws ApplicationManagementException;
 
     /**

components/application-mgt/org.wso2.carbon.device.application.mgt.core/src/main/java/org/wso2/carbon/device/application/mgt/core/dao/ApplicationDAO.java

@@ -96,7 +96,7 @@ public interface ApplicationDAO {
             ApplicationManagementDAOException;
 
     /**
-     * To get the application with the given uuid
+     * To get the application with the given id
      *
      * @param applicationId Id of the application to be retrieved.
      * @param tenantId ID of the tenant.
@@ -105,6 +105,16 @@ public interface ApplicationDAO {
      */
     Application getApplicationById(int applicationId, int tenantId) throws ApplicationManagementDAOException;
 
+    /**
+     * To get the application with the given uuid
+     *
+     * @param releaseUuid UUID of the application release.
+     * @param tenantId ID of the tenant.
+     * @return the application
+     * @throws ApplicationManagementDAOException Application Management DAO Exception.
+     */
+    Application getApplicationByUUID(String releaseUuid, int tenantId) throws ApplicationManagementDAOException;
+
     /**
      * To get the application with the given uuid
      *

components/application-mgt/org.wso2.carbon.device.application.mgt.core/src/main/java/org/wso2/carbon/device/application/mgt/core/dao/ApplicationReleaseDAO.java

@@ -138,6 +138,16 @@ public interface ApplicationReleaseDAO {
      */
     boolean verifyReleaseExistence(int appId, String uuid, int tenantId) throws ApplicationManagementDAOException;
 
+    /**
+     * To verify whether application release exist or not for the given app release version.
+     *
+     * @param appId ID of the application.
+     * @param hashVal Hash value of the application release.
+     * @param tenantId Tenant Id
+     * @throws ApplicationManagementDAOException Application Management DAO Exception.
+     */
+    boolean verifyReleaseExistenceByHash(int appId, String hashVal, int tenantId) throws ApplicationManagementDAOException;
+
     /**
      * To verify whether application release exist or not for given application release uuid.
      *

components/application-mgt/org.wso2.carbon.device.application.mgt.core/src/main/java/org/wso2/carbon/device/application/mgt/core/dao/impl/application/GenericApplicationDAOImpl.java

@@ -389,6 +389,53 @@ public class GenericApplicationDAOImpl extends AbstractDAOImpl implements Applic
         }
     }
 
+    @Override
+    public Application getApplicationByUUID(String releaseUuid, int tenantId) throws
+                                                                           ApplicationManagementDAOException {
+        if (log.isDebugEnabled()) {
+            log.debug("Getting application with the release UUID: " + releaseUuid + " from the database");
+        }
+        Connection conn;
+        PreparedStatement stmt = null;
+        ResultSet rs = null;
+        try {
+            conn = this.getDBConnection();
+            String sql =
+                    "SELECT AP_APP.ID AS APP_ID, AP_APP.NAME AS APP_NAME, AP_APP.TYPE AS APP_TYPE, AP_APP.APP_CATEGORY "
+                            + "AS APP_CATEGORY, AP_APP.SUB_TYPE AS SUB_TYPE, AP_APP.CURRENCY AS CURRENCY, "
+                            + "AP_APP.RESTRICTED AS RESTRICTED, AP_APP.DEVICE_TYPE_ID AS DEVICE_TYPE_ID, "
+                            + "AP_APP_TAG.TAG AS APP_TAG, AP_UNRESTRICTED_ROLE.ROLE AS "
+                            + "ROLE FROM ((AP_APP LEFT JOIN AP_APP_TAG ON AP_APP.ID = AP_APP_TAG.AP_APP_ID) "
+                            + "LEFT JOIN AP_UNRESTRICTED_ROLE ON AP_APP.ID = AP_UNRESTRICTED_ROLE.AP_APP_ID) "
+                            + "WHERE AP_APP.ID = (SELECT AP_APP_ID FROM AP_APP_RELEASE WHERE UUID =? ) AND "
+                            + "AP_APP.TENANT_ID = ? AND AP_APP.STATUS != ?;";
+
+            stmt = conn.prepareStatement(sql);
+            stmt.setString(1, releaseUuid);
+            stmt.setInt(2, tenantId);
+            stmt.setString(3, AppLifecycleState.REMOVED.toString());
+            rs = stmt.executeQuery();
+
+            if (log.isDebugEnabled()) {
+                log.debug("Successfully retrieved basic details of the application for the application release UUID:  "
+                                  + releaseUuid);
+            }
+
+            return Util.loadApplication(rs);
+
+        } catch (SQLException e) {
+            throw new ApplicationManagementDAOException(
+                    "Error occurred while getting application details with app release uuid " + releaseUuid +
+                            " While executing query ", e);
+        } catch (JSONException e) {
+            throw new ApplicationManagementDAOException("Error occurred while parsing JSON", e);
+        } catch (DBConnectionException e) {
+            throw new ApplicationManagementDAOException("Error occurred while obtaining the DB connection.", e);
+        } finally {
+            Util.cleanupResources(stmt, rs);
+        }
+    }
+
     @Override
     public Application getApplicationById(int applicationId, int tenantId) throws
             ApplicationManagementDAOException {

components/application-mgt/org.wso2.carbon.device.application.mgt.core/src/main/java/org/wso2/carbon/device/application/mgt/core/dao/impl/application/release/GenericApplicationReleaseDAOImpl.java

@@ -431,6 +431,43 @@ public class GenericApplicationReleaseDAOImpl extends AbstractDAOImpl implements
         }
     }
 
+    @Override
+    public boolean verifyReleaseExistenceByHash(int appId, String hashVal, int tenantId) throws ApplicationManagementDAOException {
+        if (log.isDebugEnabled()) {
+            log.debug("Verifying application release existence by application id:" + appId
+                    + " and application hash value: " + hashVal);
+        }
+        Connection conn;
+        PreparedStatement stmt = null;
+        ResultSet rs = null;
+        try {
+            conn = this.getDBConnection();
+            String sql =
+                    "SELECT AR.ID AS RELEASE_ID FROM AP_APP_RELEASE AS AR WHERE AR.AP_APP_ID = ? AND "
+                            + "AR.APP_HASH_VALUE = ? AND AR.TENANT_ID = ?;";
+
+            stmt = conn.prepareStatement(sql);
+            stmt.setInt(1, appId);
+            stmt.setString(2, hashVal);
+            stmt.setInt(3, tenantId);
+            rs = stmt.executeQuery();
+
+            if (log.isDebugEnabled()) {
+                log.debug("Successfully retrieved basic details of the application release with the application ID "
+                        + appId + " Application release hash value: " + hashVal);
+            }
+            return rs.next();
+        } catch (SQLException e) {
+            throw new ApplicationManagementDAOException(
+                    "Error occurred while getting application release details with app ID: " + appId
+                            + " App release hash value: " + hashVal + " While executing query ", e);
+        } catch (DBConnectionException e) {
+            throw new ApplicationManagementDAOException("Error occurred while obtaining the DB connection.", e);
+        } finally {
+            Util.cleanupResources(stmt, rs);
+        }
+    }
+
     @Override
     public boolean verifyReleaseExistence(int appId, String uuid, int tenantId) throws ApplicationManagementDAOException {
         if (log.isDebugEnabled()) {

components/application-mgt/org.wso2.carbon.device.application.mgt.core/src/main/java/org/wso2/carbon/device/application/mgt/core/impl/ApplicationManagerImpl.java

@@ -46,6 +46,7 @@ import org.wso2.carbon.device.application.mgt.core.dao.VisibilityDAO;
 import org.wso2.carbon.device.application.mgt.core.dao.common.ApplicationManagementDAOFactory;
 import org.wso2.carbon.device.application.mgt.core.dao.common.Util;
 import org.wso2.carbon.device.application.mgt.core.exception.ApplicationManagementDAOException;
+import org.wso2.carbon.device.application.mgt.core.exception.BadRequestException;
 import org.wso2.carbon.device.application.mgt.core.exception.ForbiddenException;
 import org.wso2.carbon.device.application.mgt.core.exception.LifeCycleManagementDAOException;
 import org.wso2.carbon.device.application.mgt.core.exception.NotFoundException;
@@ -165,7 +166,7 @@ public class ApplicationManagerImpl implements ApplicationManager {
                 LifecycleState lifecycleState = new LifecycleState();
                 lifecycleState.setCurrentState(AppLifecycleState.CREATED.toString());
                 lifecycleState.setPreviousState(AppLifecycleState.CREATED.toString());
-                changeLifecycleState(appId, applicationRelease.getUuid(), lifecycleState, false, false);
+                changeLifecycleState(appId, applicationRelease.getUuid(), lifecycleState, false);
 
                 applicationRelease.setLifecycleState(lifecycleState);
                 applicationReleases.add(applicationRelease);
@@ -245,14 +246,22 @@ public class ApplicationManagerImpl implements ApplicationManager {
             log.debug("Application release request is received for the application " + application.toString());
         }
         try {
-            ConnectionManagerUtil.getDBConnection();
+            ConnectionManagerUtil.openDBConnection();
+            if (!this.applicationDAO.verifyApplicationExistenceById(applicationId, tenantId)){
+                throw new NotFoundException(
+                        "Couldn't found application for the application Id: " + applicationId);
+            }
+            if (this.applicationReleaseDAO
+                    .verifyReleaseExistenceByHash(applicationId, applicationRelease.getAppHashValue(), tenantId)) {
+                throw new BadRequestException("Application release exists for the application Id: " + applicationId
+                        + " and uploaded binary file");
+            }
             applicationRelease = this.applicationReleaseDAO
                     .createRelease(applicationRelease, application.getId(), tenantId);
             LifecycleState lifecycleState = new LifecycleState();
             lifecycleState.setCurrentState(AppLifecycleState.CREATED.toString());
             lifecycleState.setPreviousState(AppLifecycleState.CREATED.toString());
-            changeLifecycleState(application.getId(), applicationRelease.getUuid(), lifecycleState, true,
-                    false);
+            changeLifecycleState(application.getId(), applicationRelease.getUuid(), lifecycleState, false);
             return applicationRelease;
         } catch (ApplicationManagementDAOException e) {
             throw new ApplicationManagementException(
@@ -321,6 +330,53 @@ public class ApplicationManagerImpl implements ApplicationManager {
         }
     }
 
+    @Override
+    public Application getApplicationByUuid(String uuid, String state) throws ApplicationManagementException {
+        int tenantId = PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId(true);
+        String userName = PrivilegedCarbonContext.getThreadLocalCarbonContext().getUsername();
+        Application application;
+        boolean isAppAllowed = false;
+        boolean isOpenConnection = false;
+        List<ApplicationRelease> applicationReleases = null;
+        try {
+            if (state != null) {
+                ConnectionManagerUtil.openDBConnection();
+                isOpenConnection = true;
+            }
+            application = this.applicationDAO.getApplicationByUUID(uuid, tenantId);
+            if (application == null) {
+                throw new NotFoundException("Couldn't find an application for application release UUID:: " + uuid);
+            }
+            if (isAdminUser(userName, tenantId, CarbonConstants.UI_ADMIN_PERMISSION_COLLECTION)) {
+                applicationReleases = getReleases(application, state);
+                application.setApplicationReleases(applicationReleases);
+                return application;
+            }
+
+            if (!application.getUnrestrictedRoles().isEmpty()) {
+                if (isRoleExists(application.getUnrestrictedRoles(), userName)) {
+                    isAppAllowed = true;
+                }
+            } else {
+                isAppAllowed = true;
+            }
+
+            if (!isAppAllowed) {
+                return null;
+            }
+            applicationReleases = getReleases(application, state);
+            application.setApplicationReleases(applicationReleases);
+            return application;
+        } catch (UserStoreException e) {
+            throw new ApplicationManagementException(
+                    "User-store exception while getting application with the application release UUID " + uuid);
+        } finally {
+            if (isOpenConnection) {
+                ConnectionManagerUtil.closeDBConnection();
+            }
+        }
+    }
+
     private boolean isRoleExists(Collection<UnrestrictedRole> unrestrictedRoleList, String userName)
             throws UserStoreException {
         String[] roleList;
@@ -467,6 +523,14 @@ public class ApplicationManagerImpl implements ApplicationManager {
             if (AppLifecycleState.PUBLISHED.toString()
                     .equals(state) && filteredReleases.size() > 1) {
                 log.warn("There are more than one application releases is found which is in PUBLISHED state");
+                filteredReleases.sort((r1, r2) -> {
+                    if (r1.getLifecycleState().getUpdatedAt().after(r2.getLifecycleState().getUpdatedAt())) {
+                        return -1;
+                    } else if (r2.getLifecycleState().getUpdatedAt().after(r1.getLifecycleState().getUpdatedAt())) {
+                        return 1;
+                    }
+                    return 0;
+                });
             }
             return filteredReleases;
         }
@@ -502,7 +566,7 @@ public class ApplicationManagerImpl implements ApplicationManager {
                 LifecycleState newAppLifecycleState = new LifecycleState();
                 newAppLifecycleState.setPreviousState(appLifecycleState.getCurrentState());
                 newAppLifecycleState.setCurrentState(AppLifecycleState.REMOVED.toString());
-                changeLifecycleState(applicationId, applicationRelease.getUuid(), newAppLifecycleState, true, false);
+                changeLifecycleState(applicationId, applicationRelease.getUuid(), newAppLifecycleState, false);
                 storedLocations.add(applicationRelease.getAppHashValue());
             }
             this.applicationDAO.deleteApplication(applicationId);
@@ -537,7 +601,7 @@ public class ApplicationManagerImpl implements ApplicationManager {
                 LifecycleState newAppLifecycleState = new LifecycleState();
                 newAppLifecycleState.setPreviousState(appLifecycleState.getCurrentState());
                 newAppLifecycleState.setCurrentState(AppLifecycleState.REMOVED.toString());
-                changeLifecycleState(applicationId, applicationRelease.getUuid(), newAppLifecycleState, true, false);
+                changeLifecycleState(applicationId, applicationRelease.getUuid(), newAppLifecycleState, false);
             } else {
                 throw new ApplicationManagementException("Can't delete the application release, You have to move the " +
                         "lifecycle state from " + currentState + " to acceptable " +
@@ -849,15 +913,14 @@ public class ApplicationManagerImpl implements ApplicationManager {
         return lifecycleState;
     }
 
-    @Override
-    public void changeLifecycleState(int applicationId, String releaseUuid, LifecycleState state, Boolean checkExist,
-                                     Boolean handleDBConnections) throws ApplicationManagementException {
-        try {
+    @Override public void changeLifecycleState(int applicationId, String releaseUuid, LifecycleState state,
+            Boolean checkExist) throws ApplicationManagementException {
         int tenantId = PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId(true);
+        boolean handleDBConnection = false;
+        try {
             if (checkExist) {
-                if (handleDBConnections) {
                 ConnectionManagerUtil.openDBConnection();
-                }
+                handleDBConnection = true;
                 if (!this.applicationDAO.verifyApplicationExistenceById(applicationId, tenantId)){
                     throw new NotFoundException(
                             "Couldn't found application for the application Id: " + applicationId);
@@ -890,7 +953,7 @@ public class ApplicationManagerImpl implements ApplicationManager {
                     "Failed to add lifecycle state. Application Id: " + applicationId + " Application release UUID: "
                             + releaseUuid, e);
         } finally {
-            if (handleDBConnections) {
+            if (handleDBConnection) {
                 ConnectionManagerUtil.closeDBConnection();
             }
         }

components/application-mgt/org.wso2.carbon.device.application.mgt.publisher.api/src/main/java/org/wso2/carbon/device/application/mgt/publisher/api/services/impl/ApplicationManagementAPIImpl.java

@@ -484,7 +484,7 @@ public class ApplicationManagementAPIImpl implements ApplicationManagementAPI {
             LifecycleState state) {
         ApplicationManager applicationManager = APIUtil.getApplicationManager();
         try {
-            applicationManager.changeLifecycleState(applicationId, applicationUuid, state, true, true);
+            applicationManager.changeLifecycleState(applicationId, applicationUuid, state, true);
         } catch (NotFoundException e) {
             String msg = "Could,t find application release for application id: " + applicationId
                     + " and application release uuid: " + applicationUuid;

components/application-mgt/org.wso2.carbon.device.application.mgt.store.api/src/main/java/org/wso2/carbon/device/application/mgt/store/api/services/ApplicationManagementAPI.java

@@ -30,12 +30,10 @@ import io.swagger.annotations.SwaggerDefinition;
 import io.swagger.annotations.Tag;
 import org.wso2.carbon.apimgt.annotations.api.Scope;
 import org.wso2.carbon.apimgt.annotations.api.Scopes;
-import org.wso2.carbon.device.application.mgt.common.Filter;
 import org.wso2.carbon.device.application.mgt.common.ErrorResponse;
 import org.wso2.carbon.device.application.mgt.common.Application;
 import org.wso2.carbon.device.application.mgt.common.ApplicationList;
 
-import javax.validation.Valid;
 import javax.ws.rs.Consumes;
 import javax.ws.rs.GET;
 import javax.ws.rs.Path;
@@ -69,52 +67,14 @@ import javax.ws.rs.core.Response;
                 @Scope(
                         name = "Get Application Details",
                         description = "Get application details",
-                        key = "perm:application:get",
+                        key = "perm:app:store:view",
                         permissions = {"/device-mgt/application/get"}
-                ),
-                @Scope(
-                        name = "Create an Application",
-                        description = "Create an application",
-                        key = "perm:application:create",
-                        permissions = {"/device-mgt/application/create"}
-                ),
-                @Scope(
-                        name = "Update an Application",
-                        description = "Update an application",
-                        key = "perm:application:update",
-                        permissions = {"/device-mgt/application/update"}
-                ),
-                @Scope(
-                        name = "Create an Application",
-                        description = "Create an application",
-                        key = "perm:application-mgt:login",
-                        permissions = {"/device-mgt/application-mgt/login"}
-                ),
-                @Scope(
-                        name = "Delete an Application",
-                        description = "Delete an application",
-                        key = "perm:application:delete",
-                        permissions = {"/device-mgt/application/delete"}
-                ),
-                @Scope(
-                        name = "Create an application category",
-                        description = "Create an application category",
-                        key = "perm:application-category:create",
-                        permissions = {"/device-mgt/application/category/create"}
-                ),
-                @Scope(
-                        name = "Delete an Application category",
-                        description = "Delete an application category",
-                        key = "perm:application-category:delete",
-                        permissions = {"/device-mgt/application/category/delete"}
                 )
-
-
         }
 )
 @Path("/store/applications")
-@Api(value = "Application Management", description = "This API carries all application management related operations " +
-        "such as get all the applications, add application, etc.")
+@Api(value = "Application Management", description = "This API carries all app store management related operations " +
+        "such as get all the applications etc.")
 @Produces(MediaType.APPLICATION_JSON)
 public interface ApplicationManagementAPI {
 
@@ -143,9 +103,8 @@ public interface ApplicationManagementAPI {
                             message = "OK. \n Successfully got application list.",
                             response = ApplicationList.class),
                     @ApiResponse(
-                            code = 304,
-                            message = "Not Modified. Empty body because the client already has the latest version "
-                                    + "of the requested resource."),
+                            code = 404,
+                            message = "Not Found. Not Found Applications."),
                     @ApiResponse(
                             code = 500,
                             message = "Internal Server Error. \n Error occurred while getting the application list.",
@@ -153,10 +112,21 @@ public interface ApplicationManagementAPI {
             })
     Response getApplications(
             @ApiParam(
-                    name = "filter",
-                    value = "Filter to get application list",
-                    required = true)
-            @Valid Filter filter,
+                    name = "name",
+                    value = "Name of the application")
+            @QueryParam("name") String appName,
+            @ApiParam(
+                    name = "type",
+                    value = "Type of the application")
+            @QueryParam("type") String appType,
+            @ApiParam(
+                    name = "category",
+                    value = "Category of the application")
+            @QueryParam("category") String appCategory,
+            @ApiParam(
+                    name = "exact-match",
+                    value = "Is it requesting exactly matching application or partially matching application.")
+            @QueryParam("exact-match") boolean isFullMatch,
             @ApiParam(
                     name = "offset",
                     value = "Provide from which position apps should return", defaultValue = "0")
@@ -164,12 +134,16 @@ public interface ApplicationManagementAPI {
             @ApiParam(
                     name = "limit",
                     value = "Provide how many apps it should return", defaultValue = "20")
-            @QueryParam("limit") int limit
+            @QueryParam("limit") int limit,
+            @ApiParam(
+                    name = "limit",
+                    value = "Provide how many apps it should return", defaultValue = "ASC")
+            @QueryParam("sort") String sortBy
 
     );
 
     @GET
-    @Path("/{appType}")
+    @Path("/{uuid}")
     @Produces(MediaType.APPLICATION_JSON)
     @Consumes(MediaType.APPLICATION_JSON)
     @ApiOperation(
@@ -201,15 +175,10 @@ public interface ApplicationManagementAPI {
             })
     Response getApplication(
             @ApiParam(
-                    name = "appType",
+                    name = "uuid",
                     value = "Type of the application",
                     required = true)
-            @PathParam("appType") String appType,
-            @ApiParam(
-                    name = "appName",
-                    value = "Application name",
-                    required = true)
-            @QueryParam("appName") String appName
+            @PathParam("uuid") String uuid
     );
 
 

components/application-mgt/org.wso2.carbon.device.application.mgt.store.api/src/main/java/org/wso2/carbon/device/application/mgt/store/api/services/impl/ApplicationManagementAPIImpl.java

@@ -21,7 +21,6 @@ package org.wso2.carbon.device.application.mgt.store.api.services.impl;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.wso2.carbon.device.application.mgt.common.AppLifecycleState;
-import org.wso2.carbon.device.application.mgt.common.ApplicationRelease;
 import org.wso2.carbon.device.application.mgt.common.Application;
 import org.wso2.carbon.device.application.mgt.common.ApplicationList;
 import org.wso2.carbon.device.application.mgt.common.Filter;
@@ -31,117 +30,84 @@ import org.wso2.carbon.device.application.mgt.core.exception.NotFoundException;
 import org.wso2.carbon.device.application.mgt.core.util.APIUtil;
 import org.wso2.carbon.device.application.mgt.store.api.services.ApplicationManagementAPI;
 
-import javax.validation.Valid;
 import javax.ws.rs.Consumes;
+import javax.ws.rs.DefaultValue;
 import javax.ws.rs.GET;
 import javax.ws.rs.Path;
 import javax.ws.rs.PathParam;
 import javax.ws.rs.Produces;
 import javax.ws.rs.QueryParam;
 import javax.ws.rs.core.Response;
-import java.util.ArrayList;
-import java.util.List;
 
 /**
  * Implementation of Application Management related APIs.
  */
-@Produces({"application/json"})
+@Produces({ "application/json" })
 @Path("/store/applications")
 public class ApplicationManagementAPIImpl implements ApplicationManagementAPI {
 
     private static Log log = LogFactory.getLog(ApplicationManagementAPIImpl.class);
 
     @GET
-    @Consumes("application/json")
     @Override
+    @Consumes("application/json")
     public Response getApplications(
-            @Valid Filter filter,
-            @QueryParam("offset") int offset,
-            @QueryParam("limit") int limit) {
-        ApplicationManager applicationManager = APIUtil.getApplicationManager();
+            @QueryParam("name") String appName,
+            @QueryParam("type") String appType,
+            @QueryParam("category") String appCategory,
+            @QueryParam("exact-match") boolean isFullMatch,
+            @DefaultValue("0") @QueryParam("offset") int offset,
+            @DefaultValue("20") @QueryParam("limit") int limit,
+            @DefaultValue("ASC") @QueryParam("sort") String sortBy) {
 
+        ApplicationManager applicationManager = APIUtil.getApplicationManager();
         try {
+            Filter filter = new Filter();
             filter.setOffset(offset);
             filter.setLimit(limit);
-
-            ApplicationList applications = applicationManager.getApplications(filter);
-            List<ApplicationRelease> publishedApplicationRelease = new ArrayList<>();
-
-            for (Application application : applications.getApplications()) {
-
-                for (ApplicationRelease appRelease: application.getApplicationReleases()){
-                    if (AppLifecycleState.PUBLISHED.toString()
-                            .equals(appRelease.getLifecycleState().getCurrentState())) {
-                        publishedApplicationRelease.add(appRelease);
+            filter.setSortBy(sortBy);
+            filter.setFullMatch(isFullMatch);
+            filter.setCurrentAppReleaseState(AppLifecycleState.PUBLISHED.toString());
+            if (appName != null && !appName.isEmpty()) {
+                filter.setAppName(appName);
             }
+            if (appType != null && !appType.isEmpty()) {
+                filter.setAppType(appType);
             }
-                if (publishedApplicationRelease.size()>1){
-                    String msg = "Application " + application.getName()
-                            + " has more than one PUBLISHED application releases";
-                    log.error(msg);
-                    return Response.status(Response.Status.INTERNAL_SERVER_ERROR)
-                            .entity(msg).build();
+            if (appCategory != null && !appCategory.isEmpty()) {
+                filter.setAppCategory(appCategory);
             }
-                application.setApplicationReleases(publishedApplicationRelease);
-                publishedApplicationRelease.clear();
+            ApplicationList applications = applicationManager.getApplications(filter);
+            if (applications.getApplications().isEmpty()) {
+                return Response.status(Response.Status.NOT_FOUND)
+                        .entity("Couldn't find any application for requested query.").build();
             }
             return Response.status(Response.Status.OK).entity(applications).build();
-        } catch (NotFoundException e) {
-            return Response.status(Response.Status.NOT_FOUND).build();
         } catch (ApplicationManagementException e) {
-            String msg = "Error occurred while getting the application list";
+            String msg = "Error occurred while getting the application list for publisher ";
             log.error(msg, e);
-            return Response.status(Response.Status.BAD_REQUEST).build();
+            return Response.status(Response.Status.INTERNAL_SERVER_ERROR).entity(msg).build();
         }
     }
 
     @GET
     @Consumes("application/json")
-    @Path("/{appType}")
-    public Response getApplication(@PathParam("appType") String appType,
-            @QueryParam("appName") String appName) {
+    @Path("/{uuid}")
+    public Response getApplication(
+            @PathParam("uuid") String uuid) {
         ApplicationManager applicationManager = APIUtil.getApplicationManager();
-        List<Application> filteredApps = new ArrayList<>();
-        Filter filter;
         try {
-            filter = new Filter();
-            filter.setOffset(0);
-            filter.setLimit(20);
-            filter.setAppType(appType);
-            filter.setAppName(appName);
-            ApplicationList applications = applicationManager.getApplications(filter);
-            if (applications.getApplications().isEmpty()) {
-                return Response.status(Response.Status.NOT_FOUND)
-                        .entity("Application with application type: " + appType + " not found").build();
-            }
-            for (Application application : applications.getApplications()) {
-                List<ApplicationRelease> publishedApplicationRelease = new ArrayList<>();
-                for (ApplicationRelease appRelease : application.getApplicationReleases()) {
-                    if (AppLifecycleState.PUBLISHED.toString()
-                            .equals(appRelease.getLifecycleState().getCurrentState())) {
-                        publishedApplicationRelease.add(appRelease);
-                    }
-                }
-                if (publishedApplicationRelease.size() > 1) {
-                    String msg = "Application " + application.getName()
-                            + " has more than one PUBLISHED application releases";
-                    log.error(msg);
-                    return Response.status(Response.Status.INTERNAL_SERVER_ERROR).entity(msg).build();
-                }
-                application.setApplicationReleases(publishedApplicationRelease);
-                filteredApps.add(application);
-            }
-            applications.setApplications(filteredApps);
-            return Response.status(Response.Status.OK).entity(applications).build();
+            Application application = applicationManager
+                    .getApplicationByUuid(uuid, AppLifecycleState.PUBLISHED.toString());
+            return Response.status(Response.Status.OK).entity(application).build();
         } catch (NotFoundException e) {
-            return Response.status(Response.Status.NOT_FOUND).build();
+            String msg = "Application with application release UUID: " + uuid + " is not found";
+            log.error(msg, e);
+            return Response.status(Response.Status.NOT_FOUND).entity(msg).build();
         } catch (ApplicationManagementException e) {
-            log.error("Error occurred while getting application with the application type: " + appType
-                    + " and application name: " + appName, e);
-            return APIUtil.getResponse(e, Response.Status.INTERNAL_SERVER_ERROR);
+            String msg = "Error occurred while getting application with the application release uuid: " + uuid;
+            log.error(msg, e);
+            return Response.status(Response.Status.INTERNAL_SERVER_ERROR).entity(msg).build();
         }
     }
-
-//    todo --> get applications by category
-
 }