set default value for mqtt input adapter

components/extensions/cdmf-transport-adapters/input/org.wso2.carbon.device.mgt.input.adapter.mqtt/src/main/java/org/wso2/carbon/device/mgt/input/adapter/mqtt/MQTTEventAdapterFactory.java

@@ -120,7 +120,7 @@ public class MQTTEventAdapterFactory extends InputEventAdapterFactory {
         // set clientId
         Property clientId = new Property(MQTTEventAdapterConstants.ADAPTER_CONF_CLIENTID);
         clientId.setDisplayName(resourceBundle.getString(MQTTEventAdapterConstants.ADAPTER_CONF_CLIENTID));
-        clientId.setRequired(false);
+        clientId.setRequired(true);
         clientId.setHint(resourceBundle.getString(MQTTEventAdapterConstants.ADAPTER_CONF_CLIENTID_HINT));
         propertyList.add(clientId);
 

components/extensions/cdmf-transport-adapters/output/org.wso2.carbon.device.mgt.output.adapter.mqtt/src/main/java/org/wso2/carbon/device/mgt/output/adapter/mqtt/MQTTEventAdapterFactory.java

@@ -90,9 +90,9 @@ public class MQTTEventAdapterFactory extends OutputEventAdapterFactory {
         // set Quality of Service
         Property qos = new Property(MQTTEventAdapterConstants.ADAPTER_MESSAGE_QOS);
         qos.setDisplayName(resourceBundle.getString(MQTTEventAdapterConstants.ADAPTER_MESSAGE_QOS));
-        qos.setRequired(true);
+        qos.setRequired(false);
         qos.setOptions(new String[]{"0", "1", "2"});
-        qos.setDefaultValue("1");
+        qos.setDefaultValue("2");
 
         staticPropertyList.add(brokerUrl);
         staticPropertyList.add(userName);