add remote session dependency

components/extensions/remote-session-extension/org.wso2.carbon.device.mgt.extensions.remote.session/src/main/java/org/wso2/carbon/device/mgt/extensions/remote.session/dto/ClientSession.java

@@ -1,39 +0,0 @@
-/*
- * Copyright (c) 2017, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
- *
- * WSO2 Inc. 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 org.wso2.carbon.device.mgt.extensions.remote.session.dto;
-
-import org.wso2.carbon.device.mgt.extensions.remote.session.dto.common.RemoteSession;
-
-import javax.websocket.Session;
-
-/**
- * {@link ClientSession} is the represent of client which will be connecting to the device
- */
-public class ClientSession extends RemoteSession {
-
-
-    public ClientSession(Session session, String tenantDomain, String deviceType, String deviceId, String operationId) {
-        super(session, tenantDomain, deviceType, deviceId, operationId);
-    }
-
-
-    @Override
-    public boolean applyThrottlingPolicy() {
-        return false;
-    }
-}

components/extensions/remote-session-extension/org.wso2.carbon.device.mgt.extensions.remote.session/src/main/java/org/wso2/carbon/device/mgt/extensions/remote.session/dto/DeviceSession.java

@@ -1,47 +0,0 @@
-/*
- * Copyright (c) 2017, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
- *
- * WSO2 Inc. 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 org.wso2.carbon.device.mgt.extensions.remote.session.dto;
-
-import org.wso2.carbon.device.mgt.extensions.remote.session.dto.common.RemoteSession;
-import org.wso2.carbon.device.mgt.extensions.remote.session.internal.RemoteSessionManagementDataHolder;
-
-import javax.websocket.Session;
-
-/**
- * {@link DeviceSession} is the represent of device which will be connecting based on client request
- */
-public class DeviceSession extends RemoteSession {
-
-
-    public DeviceSession(Session session, String tenantDomain, String deviceType, String deviceId, String operationId) {
-        super(session, tenantDomain, deviceType, deviceId, operationId);
-    }
-
-
-    @Override
-    public boolean applyThrottlingPolicy() {
-        if (RemoteSessionManagementDataHolder.getInstance().getMessagesPerSession() > 0) {
-            long minDurationMessagesPerSecond = 1000 / RemoteSessionManagementDataHolder.getInstance()
-                    .getMessagesPerSession();
-            if ((System.currentTimeMillis() - getLastMessageTimeStamp()) < minDurationMessagesPerSecond) {
-                return true;
-            }
-        }
-        return false;
-    }
-}

components/extensions/remote-session-extension/org.wso2.carbon.device.mgt.extensions.remote.session/src/main/java/org/wso2/carbon/device/mgt/extensions/remote.session/dto/RemoteSession.java

@@ -19,8 +19,6 @@ package org.wso2.carbon.device.mgt.extensions.remote.session.dto.common;
 
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
-import org.json.JSONObject;
-import org.wso2.carbon.device.mgt.extensions.remote.session.constants.RemoteSessionConstants;
 import org.wso2.carbon.device.mgt.extensions.remote.session.exception.RemoteSessionInvalidException;
 import org.wso2.carbon.device.mgt.extensions.remote.session.exception.RemoteSessionManagementException;
 
@@ -32,9 +30,8 @@ import java.nio.ByteBuffer;
 /**
  * {@link RemoteSession} will represent remote websocket session
  * This class implements the behaviours of sending message to the session in multithreaded environment.
- *
  */
-public abstract class RemoteSession {
+public class RemoteSession {
 
     private static final Log log = LogFactory.getLog(RemoteSession.class);
     private String tenantDomain, operationId, deviceType, deviceId;
@@ -44,23 +41,21 @@ public abstract class RemoteSession {
     private Session mySession;
     private final Object writeLockObject = new Object();
 
-    protected RemoteSession(Session session, String tenantDomain, String deviceType, String deviceId, String
+    protected RemoteSession(Session session, String tenantDomain, String deviceType, String deviceId) {
-            operationId) {
         this.mySession = session;
         this.deviceType = deviceType;
         this.deviceId = deviceId;
         this.tenantDomain = tenantDomain;
-        this.operationId = operationId;
     }
 
-    public void sendMessage(Object message) throws RemoteSessionInvalidException, RemoteSessionManagementException {
+    private void sendMessage(Object message) throws RemoteSessionInvalidException, RemoteSessionManagementException {
 
         if (message != null) {
             boolean isMessageCountExceed = false;
             if (mySession != null && mySession.isOpen()) {
                 synchronized (writeLockObject) {
                     try {
-                        isMessageCountExceed = applyThrottlingPolicy();
+                        isMessageCountExceed = applyRateLimit();
                         if (!isMessageCountExceed) {
                             if (message instanceof String) {
                                 mySession.getBasicRemote().sendText(message.toString());
@@ -68,6 +63,8 @@ public abstract class RemoteSession {
                                 mySession.getBasicRemote().sendBinary(ByteBuffer.wrap((byte[]) message));
                             }
                             this.lastMessageTimeStamp = System.currentTimeMillis();
+                        } else {
+                            log.warn("Message count per second is exceeded for device id :" + deviceId);
                         }
                     } catch (IOException e) {
                         log.warn("Send data to session failed due to ", e);
@@ -77,23 +74,25 @@ public abstract class RemoteSession {
                 throw new RemoteSessionInvalidException("Peer Session already closed ", new CloseReason
                         (CloseReason.CloseCodes.CANNOT_ACCEPT, "Peer Session already closed "));
             }
-
-            if (isMessageCountExceed) {
-                JSONObject response = new JSONObject();
-                response.put("code", RemoteSessionConstants.THROTTLE_OUT);
-                sendMessageToPeer(message.toString());
-            }
         } else {
             throw new RemoteSessionManagementException("Message is empty");
         }
     }
 
-    public void sendMessageToPeer(Object message) throws RemoteSessionInvalidException, RemoteSessionManagementException {
+    public void sendMessageToPeer(Object message) throws RemoteSessionInvalidException,
+            RemoteSessionManagementException {
         peerSession.sendMessage(message);
     }
 
 
-    public abstract boolean applyThrottlingPolicy();
+    /**
+     * Use for limit the messages for given time
+     *
+     * @return message rate applied
+     */
+    public boolean applyRateLimit(){
+        return false;
+    }
 
 
     public Session getMySession() {

components/extensions/remote-session-extension/org.wso2.carbon.device.mgt.extensions.remote.session/src/main/java/org/wso2/carbon/device/mgt/extensions/remote.session/exception/RemoteSessionInvalidException.java

@@ -1,52 +0,0 @@
-/*
- * Copyright (c) 2017, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
- *
- * WSO2 Inc. 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 org.wso2.carbon.device.mgt.extensions.remote.session.exception;
-
-
-import javax.websocket.CloseReason;
-
-/**
- * This Exception will be thrown, when there any interference with Remote RemoteSession.
- */
-public class RemoteSessionInvalidException extends Exception {
-
-    CloseReason closeReason;
-
-    public RemoteSessionInvalidException(String msg, CloseReason closeReason, Exception nestedEx) {
-        super(msg, nestedEx);
-        this.closeReason = closeReason;
-    }
-
-    public RemoteSessionInvalidException(String message, CloseReason closeReason, Throwable cause) {
-        super(message, cause);
-        this.closeReason = closeReason;
-    }
-
-    public RemoteSessionInvalidException(String msg, CloseReason closeReason) {
-        super(msg);
-        this.closeReason = closeReason;
-    }
-
-    public CloseReason getCloseReason() {
-        return closeReason;
-    }
-
-    public void setCloseReason(CloseReason closeReason) {
-        this.closeReason = closeReason;
-    }
-}

pom.xml

@@ -460,6 +460,11 @@
                 <version>${carbon.devicemgt.plugins.version}</version>
                 <type>war</type>
             </dependency>
+            <dependency>
+                <groupId>org.wso2.carbon.devicemgt-plugins</groupId>
+                <artifactId>org.wso2.carbon.device.mgt.extensions.remote.session</artifactId>
+                <version>${carbon.devicemgt.plugins.version}</version>
+            </dependency>
 
             <!--Arduino DeviceType Impl, API and Agent-->
             <dependency>
@@ -1141,7 +1146,7 @@
         <javax.ws.rs.version>1.1.1</javax.ws.rs.version>
 
         <!-- Carbon Device Management -->
-        <carbon.devicemgt.version>3.0.75</carbon.devicemgt.version>
+        <carbon.devicemgt.version>3.0.93-SNAPSHOT</carbon.devicemgt.version>
         <carbon.devicemgt.version.range>[3.0.0, 4.0.0)</carbon.devicemgt.version.range>
 
         <!-- Carbon App Management -->