Fix for default policy updates in virtual fire alarm

components/device-types/virtual-fire-alarm-plugin/org.wso2.carbon.device.mgt.iot.virtualfirealarm.agent.advanced.impl/src/main/java/org/wso2/carbon/device/mgt/iot/virtualfirealarm/agent/advanced/communication/mqtt/FireAlarmMQTTCommunicator.java

@@ -176,6 +176,7 @@ public class FireAlarmMQTTCommunicator extends MQTTTransportHandler {
             } else {
                 JSONObject jsonMessage = new JSONObject(receivedMessage);
                 updateCEPPolicy(jsonMessage.getString("policyDefinition"));
+
             }
             log.info(AgentConstants.LOG_APPENDER + "Message [" + receivedMessage + "] was received");
         } catch (AgentCoreOperationException e) {

components/device-types/virtual-fire-alarm-plugin/org.wso2.carbon.device.mgt.iot.virtualfirealarm.agent.advanced.impl/src/main/java/org/wso2/carbon/device/mgt/iot/virtualfirealarm/agent/advanced/core/AgentManager.java

@@ -125,8 +125,8 @@ public class AgentManager {
             agentCommunicator.put(AgentConstants.XMPP_PROTOCOL, xmppCommunicator);
 
         } catch (TransportHandlerException e) {
-            log.error("XMPP Endpoint String - " + agentConfigs.getXmppServerEndpoint() +
-                              ", provided in the configuration file is invalid.");
+            log.info("XMPP Endpoint String - " + agentConfigs.getXmppServerEndpoint() +
+                              ", provided in the configuration file is invalid. XMPP is not configured.");
         }
         String mqttTopic = String.format(AgentConstants.MQTT_SUBSCRIBE_TOPIC, agentConfigs.getTenantDomain(),
                                          agentConfigs.getDeviceId());

components/device-types/virtual-fire-alarm-plugin/org.wso2.carbon.device.mgt.iot.virtualfirealarm.agent.advanced.impl/src/main/java/org/wso2/carbon/device/mgt/iot/virtualfirealarm/agent/advanced/sidhdhi/SidhdhiQuery.java

@@ -68,14 +68,15 @@ public class SidhdhiQuery implements Runnable {
 
         //Start the execution plan with pre-defined or previously persisted Siddhi query
         File f = new File(sidhdhiQueryPath);
+        while (true) {
+
+        if (f.exists()) {
+            //AgentUtilOperations.writeToFile("", sidhdhiQueryPath);
 
-        if (!f.exists()) {
-            AgentUtilOperations.writeToFile("", sidhdhiQueryPath);
-        }
 
             StartExecutionPlan startExecutionPlan = new StartExecutionPlan().invoke();
 
-        while (true) {
+
 
                 //Check if there is new policy update available
                 if (AgentManager.isUpdated()) {
@@ -97,6 +98,7 @@ public class SidhdhiQuery implements Runnable {
                 }
             }
         }
+    }
 
     /**
      * Re-Initialize SiddhiManager
@@ -117,7 +119,9 @@ public class SidhdhiQuery implements Runnable {
     public static String readFile(String path, Charset encoding) {
         byte[] encoded = new byte[0];
         try {
+            if(new File(sidhdhiQueryPath).exists()){
                 encoded = Files.readAllBytes(Paths.get(path));
+            }
         } catch (IOException e) {
             log.error("Error reading Sidhdhi query from file.");
         }
@@ -172,7 +176,7 @@ public class SidhdhiQuery implements Runnable {
             siddhiManager.addCallback("bulbOnStream", new StreamCallback() {
                 @Override
                 public void receive(Event[] events) {
-                    System.out.println("Bulb on Event Fired!");
+                   // System.out.println("Bulb on Event Fired!");
                     if (events.length > 0) {
                         if (!AgentManager.getInstance().isAlarmOn()) {
                             AgentManager.getInstance().changeAlarmStatus(true);
@@ -185,7 +189,7 @@ public class SidhdhiQuery implements Runnable {
             siddhiManager.addCallback("bulbOffStream", new StreamCallback() {
                 @Override
                 public void receive(Event[] inEvents) {
-                    System.out.println("Bulb off Event Fired");
+                   // System.out.println("Bulb off Event Fired");
                     if (AgentManager.getInstance().isAlarmOn()) {
                         AgentManager.getInstance().changeAlarmStatus(false);
                         System.out.println("#### Performed HTTP call! OFF.");
@@ -198,7 +202,7 @@ public class SidhdhiQuery implements Runnable {
             inputHandler = siddhiManager.getInputHandler("fireAlarmEventStream");
 
             //Starting event processing
-            System.out.println("Execution Plan Started!");
+           // System.out.println("Execution Plan Started!");
             return this;
         }
     }

components/device-types/virtual-fire-alarm-plugin/org.wso2.carbon.device.mgt.iot.virtualfirealarm.agent.impl/src/main/java/org/wso2/carbon/device/mgt/iot/virtualfirealarm/agent/core/AgentManager.java

@@ -114,8 +114,8 @@ public class AgentManager {
             agentCommunicator.put(AgentConstants.XMPP_PROTOCOL, xmppCommunicator);
 
         } catch (TransportHandlerException e) {
-            log.error("XMPP Endpoint String - " + agentConfigs.getXmppServerEndpoint() +
-                              ", provided in the configuration file is invalid.");
+            log.info("XMPP Endpoint String - " + agentConfigs.getXmppServerEndpoint() +
+                    ", provided in the configuration file is invalid. XMPP is not configured.");
         }
         String mqttTopic = String.format(AgentConstants.MQTT_SUBSCRIBE_TOPIC, agentConfigs.getTenantDomain(),
                                          agentConfigs.getDeviceId());