Add reconnect method to interface #483

Author: Ian Craggs

org.eclipse.paho.mqttv5.client/src/main/java/org/eclipse/paho/mqttv5/client/IMqttClient.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2009, 2015 IBM Corp.
+ * Copyright (c) 2009, 2018 IBM Corp.
  *
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
@@ -11,10 +11,7 @@
  *   http://www.eclipse.org/org/documents/edl-v10.php.
  *
  * Contributors:
- *    Dave Locke - initial API and implementation and/or initial documentation
- *    Ian Craggs - MQTT 3.1.1 support
- *    Ian Craggs - per subscription message handlers (bug 466579)
- *    Ian Craggs - ack control (bug 472172)
+ *    James Sutton - MQTT V5 support
  */
 
 package org.eclipse.paho.mqttv5.client;
@@ -878,6 +875,12 @@ public interface IMqttClient { //extends IMqttAsyncClient {
 	 */
 	public void setManualAcks(boolean manualAcks);
 
+	/**
+	 * Will attempt to reconnect to the server after the client has lost connection.
+	 * @throws MqttException if an error occurs attempting to reconnect
+	 */
+	public void reconnect() throws MqttException;
+
 	/**
 	 * Indicate that the application has completed processing the message with id messageId.
 	 * This will cause the MQTT acknowledgement to be sent to the server.