Fix osgi issuees and remove unwanted dependencies

components/extensions/remote-session-extension/org.wso2.carbon.device.mgt.extensions.remote.session/pom.xml

@@ -38,26 +38,6 @@
             <groupId>org.wso2.carbon</groupId>
             <artifactId>org.wso2.carbon.logging</artifactId>
         </dependency>
-        <dependency>
-            <groupId>org.wso2.carbon</groupId>
-            <artifactId>org.wso2.carbon.core</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>javax.websocket</groupId>
-            <artifactId>javax.websocket-api</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>com.google.code.gson</groupId>
-            <artifactId>gson</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>org.apache.httpcomponents.wso2</groupId>
-            <artifactId>httpcore</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>org.wso2.orbit.org.apache.httpcomponents</groupId>
-            <artifactId>httpclient</artifactId>
-        </dependency>
         <dependency>
             <groupId>org.wso2.carbon.identity.inbound.auth.oauth2</groupId>
             <artifactId>org.wso2.carbon.identity.oauth.stub</artifactId>
@@ -66,10 +46,6 @@
             <groupId>commons-pool.wso2</groupId>
             <artifactId>commons-pool</artifactId>
         </dependency>
-        <dependency>
-            <groupId>javax.ws.rs</groupId>
-            <artifactId>jsr311-api</artifactId>
-        </dependency>
         <dependency>
             <groupId>org.wso2.carbon.devicemgt</groupId>
             <artifactId>org.wso2.carbon.device.mgt.core</artifactId>
@@ -111,7 +87,28 @@
                             org.wso2.carbon.device.mgt.extensions.remote.session.*
                         </Export-Package>
                         <Import-Package>
-                            *;resolution:=optional
+                            javax.websocket,
+                            org.apache.axis2; version="${axis2.osgi.version.range}",
+                            org.apache.axis2.client; version="${axis2.osgi.version.range}",
+                            org.apache.axis2.context; version="${axis2.osgi.version.range}",
+                            org.apache.axis2.transport.http; version="${axis2.osgi.version.range}",
+                            org.apache.commons.httpclient,
+                            org.apache.commons.httpclient.contrib.ssl,
+                            org.apache.commons.httpclient.params,
+                            org.apache.commons.httpclient.protocol,
+                            org.apache.commons.logging,
+                            org.apache.commons.pool,
+                            org.apache.commons.pool.impl,
+                            org.json,
+                            org.osgi.framework,
+                            org.osgi.service.component,
+                            org.wso2.carbon.context,
+                            org.wso2.carbon.core,
+                            org.wso2.carbon.device.mgt.common.*,
+                            org.wso2.carbon.device.mgt.core.*,
+                            org.wso2.carbon.identity.oauth2.stub,
+                            org.wso2.carbon.identity.oauth2.stub.dto,
+                            org.wso2.carbon.utils.multitenancy
                         </Import-Package>
                     </instructions>
                 </configuration>

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

@@ -17,7 +17,6 @@
  */
 package org.wso2.carbon.device.mgt.extensions.remote.session;
 
-import org.apache.commons.collections.map.HashedMap;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.json.JSONObject;
@@ -43,6 +42,7 @@ import java.io.IOException;
 import java.text.SimpleDateFormat;
 import java.util.ArrayList;
 import java.util.Date;
+import java.util.HashMap;
 import java.util.LinkedList;
 import java.util.List;
 import java.util.Map;
@@ -67,7 +67,7 @@ public class RemoteSessionManagementServiceImpl implements RemoteSessionManageme
         }
 
         // Read Query Parameters for obtain the token
-        Map<String, List<String>> sessionQueryParam = new HashedMap();
+        Map<String, List<String>> sessionQueryParam = new HashMap();
         List<String> sessionQueryParamList = new LinkedList<>();
         sessionQueryParamList.add(session.getQueryString());
         sessionQueryParam.put(RemoteSessionConstants.QUERY_STRING, sessionQueryParamList);
@@ -94,8 +94,10 @@ public class RemoteSessionManagementServiceImpl implements RemoteSessionManageme
                             .isUserAuthorized(deviceIdentifier, authenticationInfo.getUsername());
                     if (userAuthorized) {
                         // set common settings for session
-                        session.setMaxBinaryMessageBufferSize(RemoteSessionConstants.MAX_BUFFER_SIZE);
+                        session.setMaxBinaryMessageBufferSize(RemoteSessionManagementDataHolder.getInstance()
-                        session.setMaxTextMessageBufferSize(RemoteSessionConstants.MAX_BUFFER_SIZE);
+                                .getMaxMessageBufferSize());
+                        session.setMaxTextMessageBufferSize(RemoteSessionManagementDataHolder.getInstance()
+                                .getMaxMessageBufferSize());
                         session.setMaxIdleTimeout(RemoteSessionManagementDataHolder.getInstance().getMaxIdleTimeout());
 
                         // if session initiated using operation id means request came from device

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

@@ -38,6 +38,7 @@ public class RemoteSessionManagementDataHolder {
     private boolean isEnabled;
     private String serverUrl;
     private long maxIdleTimeout;
+    private int maxMessageBufferSize;
     private int maxMessagesPerSecond;
     private OAuthAuthenticator oAuthAuthenticator;
     private Map<String, RemoteSession> activeDeviceClientSessionMap = new ConcurrentHashMap<String, RemoteSession>();
@@ -110,4 +111,12 @@ public class RemoteSessionManagementDataHolder {
     public void setMaxIdleTimeout(long maxIdleTimeout) {
         this.maxIdleTimeout = maxIdleTimeout;
     }
+
+    public int getMaxMessageBufferSize() {
+        return maxMessageBufferSize;
+    }
+
+    public void setMaxMessageBufferSize(int MaxMessageBufferSize) {
+        this.maxMessageBufferSize = MaxMessageBufferSize;
+    }
 }

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

@@ -64,6 +64,14 @@ public class RemoteSessionManagerStartupListener implements ServerStartupObserve
             // Set max idle timeout in milliseconds
             RemoteSessionManagementDataHolder.getInstance().setMaxIdleTimeout((long) rsConfig.getSessionIdleTimeOut() *
                     60000);
+            // Set max buffer size for messages.
+            if (rsConfig.getMaxMessageBufferSize() > 0) {
+                RemoteSessionManagementDataHolder.getInstance()
+                        .setMaxMessageBufferSize(rsConfig.getMaxMessageBufferSize() * 1024);
+            } else {
+                RemoteSessionManagementDataHolder.getInstance().
+                        setMaxMessageBufferSize(RemoteSessionConstants.MAX_BUFFER_SIZE);
+            }
 
             // Set max messages per second.
             if (rsConfig.getMaxMessagesPerSession() > 0) {

components/extensions/remote-session-extension/pom.xml

@@ -43,7 +43,7 @@
                 <plugin>
                     <groupId>org.apache.felix</groupId>
                     <artifactId>maven-scr-plugin</artifactId>
-                    <version>1.7.2</version>
+                    <version>${maven.scr.version}</version>
                     <executions>
                         <execution>
                             <id>generate-scr-scrdescriptor</id>