/** * User triggered attempt to reconnect * * @throws MqttException */ public void reconnect() throws MqttException { final String methodName = "reconnect"; // @Trace 500=Attempting to reconnect client: {0} log.fine(CLASS_NAME, methodName, "500", new Object[] {this.clientId}); // Some checks to make sure that we're not attempting to reconnect an already connected client if (comms.isConnected()) { throw ExceptionHelper.createMqttException(MqttException.REASON_CODE_CLIENT_CONNECTED); } if (comms.isConnecting()) { throw new MqttException(MqttException.REASON_CODE_CONNECT_IN_PROGRESS); } if (comms.isDisconnecting()) { throw new MqttException(MqttException.REASON_CODE_CLIENT_DISCONNECTING); } if (comms.isClosed()) { throw new MqttException(MqttException.REASON_CODE_CLIENT_CLOSED); } // We don't want to spam the server stopReconnectCycle(); attemptReconnect(); }
/* (non-Javadoc) * @see org.eclipse.paho.client.mqttv3.IMqttAsyncClient#connect(org.eclipse.paho.client.mqttv3.MqttConnectOptions, java.lang.Object, org.eclipse.paho.client.mqttv3.IMqttActionListener) */ public IMqttToken connect( MqttConnectOptions options, Object userContext, IMqttActionListener callback) throws MqttException, MqttSecurityException { final String methodName = "connect"; if (comms.isConnected()) { throw ExceptionHelper.createMqttException(MqttException.REASON_CODE_CLIENT_CONNECTED); } if (comms.isConnecting()) { throw new MqttException(MqttException.REASON_CODE_CONNECT_IN_PROGRESS); } if (comms.isDisconnecting()) { throw new MqttException(MqttException.REASON_CODE_CLIENT_DISCONNECTING); } if (comms.isClosed()) { throw new MqttException(MqttException.REASON_CODE_CLIENT_CLOSED); } this.connOpts = options; this.userContext = userContext; final boolean automaticReconnect = options.isAutomaticReconnect(); // @TRACE 103=cleanSession={0} connectionTimeout={1} TimekeepAlive={2} userName={3} password={4} // will={5} userContext={6} callback={7} log.fine( CLASS_NAME, methodName, "103", new Object[] { Boolean.valueOf(options.isCleanSession()), new Integer(options.getConnectionTimeout()), new Integer(options.getKeepAliveInterval()), options.getUserName(), ((null == options.getPassword()) ? "[null]" : "[notnull]"), ((null == options.getWillMessage()) ? "[null]" : "[notnull]"), userContext, callback }); comms.setNetworkModules(createNetworkModules(serverURI, options)); comms.setReconnectCallback( new MqttCallbackExtended() { public void messageArrived(String topic, MqttMessage message) throws Exception {} public void deliveryComplete(IMqttDeliveryToken token) {} public void connectComplete(boolean reconnect, String serverURI) {} public void connectionLost(Throwable cause) { if (automaticReconnect) { // Automatic reconnect is set so make sure comms is in resting state comms.setRestingState(true); reconnecting = true; startReconnectCycle(); } } }); // Insert our own callback to iterate through the URIs till the connect succeeds MqttToken userToken = new MqttToken(getClientId()); ConnectActionListener connectActionListener = new ConnectActionListener( this, persistence, comms, options, userToken, userContext, callback, reconnecting); userToken.setActionCallback(connectActionListener); userToken.setUserContext(this); // If we are using the MqttCallbackExtended, set it on the connectActionListener if (this.mqttCallback instanceof MqttCallbackExtended) { connectActionListener.setMqttCallbackExtended((MqttCallbackExtended) this.mqttCallback); } comms.setNetworkModuleIndex(0); connectActionListener.connect(); return userToken; }