Added sample publish InterceptHandler implementation to EmbeddedLauncher (#104 publish listner part)

embedding_moquette/src/main/java/io/moquette/testembedded/EmbeddedLauncher.java

@@ -1,21 +1,56 @@
+    /*
+ * Copyright (c) 2012-2015 The original author or authors
+ * ------------------------------------------------------
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * and Apache License v2.0 which accompanies this distribution.
+ *
+ * The Eclipse Public License is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * The Apache License v2.0 is available at
+ * http://www.opensource.org/licenses/apache2.0.php
+ *
+ * You may elect to redistribute this code under either of these licenses.
+ */
 package io.moquette.testembedded;
 
+import io.moquette.interception.AbstractInterceptHandler;
+import io.moquette.interception.InterceptHandler;
+import io.moquette.interception.messages.*;
 import io.moquette.server.Server;
 import io.moquette.server.config.IConfig;
 import io.moquette.server.config.ClasspathConfig;
 
 import java.io.IOException;
+import java.util.List;
+
+import static java.util.Arrays.asList;
+
+    public class EmbeddedLauncher {
+    static class PublisherListener extends AbstractInterceptHandler {
+
+        @Override
+        public void onPublish(InterceptPublishMessage msg) {
+            System.out.println("Received on topic: " + msg.getTopicName() + " content: " + new String(msg.getPayload().array()));
+        }
+    }
 
-public class EmbeddedLauncher {
     public static void main(String[] args) throws InterruptedException, IOException {
         final IConfig classPathConfig = new ClasspathConfig();
 
         final Server mqttBroker = new Server();
-        mqttBroker.startServer(classPathConfig);
-        System.out.println("Broker started");
-        Thread.sleep(1000);
-        System.out.println("Stopping broker");
-        mqttBroker.stopServer();
-        System.out.println("Broker stopped");
+        List<? extends InterceptHandler> userHandlers = asList(new PublisherListener());
+        mqttBroker.startServer(classPathConfig, userHandlers);
+        System.out.println("Broker started press [CRTL+C] to stop");
+        //Bind  a shutdown hook
+        Runtime.getRuntime().addShutdownHook(new Thread() {
+            @Override
+            public void run() {
+                System.out.println("Stopping broker");
+                mqttBroker.stopServer();
+                System.out.println("Broker stopped");
+            }
+        });
     }
 }