Added trivial client implementation

src/main/java/org/dna/mqtt/moquette/client/Client.java

@@ -0,0 +1,75 @@
+package org.dna.mqtt.moquette.client;
+
+import java.net.InetSocketAddress;
+import java.util.logging.Logger;
+import org.apache.mina.core.RuntimeIoException;
+import org.apache.mina.core.future.ConnectFuture;
+import org.apache.mina.core.session.IoSession;
+import org.apache.mina.filter.codec.ProtocolCodecFilter;
+import org.apache.mina.filter.codec.demux.DemuxingProtocolDecoder;
+import org.apache.mina.filter.codec.demux.DemuxingProtocolEncoder;
+import org.apache.mina.filter.logging.LoggingFilter;
+import org.apache.mina.transport.socket.nio.NioSocketConnector;
+import org.dna.mqtt.moquette.proto.ConnAckDecoder;
+import org.dna.mqtt.moquette.proto.ConnectDecoder;
+import org.dna.mqtt.moquette.proto.ConnectEncoder;
+import org.dna.mqtt.moquette.proto.messages.ConnectMessage;
+import org.dna.mqtt.moquette.server.Server;
+
+/**
+ * Simple client to connect to a server
+ * 
+ * 
+ * @author andrea
+ */
+public class Client {
+    
+    private static final Logger LOG = Logger.getLogger(Client.class.getName());
+
+    private static final String HOSTNAME = /*"localhost"*/ "127.0.0.1";
+    private static final int PORT = Server.PORT;
+    private static final long CONNECT_TIMEOUT = 30 * 1000L; // 30 seconds
+
+    public static void main(String[] args) throws Throwable {
+        DemuxingProtocolDecoder decoder = new DemuxingProtocolDecoder();
+        decoder.addMessageDecoder(new ConnAckDecoder());
+        
+        DemuxingProtocolEncoder encoder = new DemuxingProtocolEncoder();
+        encoder.addMessageEncoder(ConnectMessage.class, new ConnectEncoder());
+        
+        
+        NioSocketConnector connector = new NioSocketConnector();
+
+        // Configure the service.
+        connector.setConnectTimeoutMillis(CONNECT_TIMEOUT);
+        connector.getFilterChain().addLast("codec", new ProtocolCodecFilter(encoder, decoder));
+        connector.getFilterChain().addLast("logger", new LoggingFilter());
+        connector.setHandler(new  ClientMQTTHandler());
+
+        IoSession session;
+        for (;;) {
+            try {
+                ConnectFuture future = connector.connect(new InetSocketAddress(HOSTNAME, PORT));
+                LOG.info("Client waiting to connect to server");
+                future.awaitUninterruptibly();
+                session = future.getSession();
+                break;
+            } catch (RuntimeIoException e) {
+                System.err.println("Failed to connect.");
+                e.printStackTrace();
+                Thread.sleep(5000);
+            }
+        }
+        
+        //send a message over the session
+        ConnectMessage connMsg = new ConnectMessage();
+        connMsg.setKeepAlive(3);
+        session.write(connMsg);
+        LOG.info("Client wrote message to server");
+
+        // wait until the summation is done
+        session.getCloseFuture().awaitUninterruptibly();
+        connector.dispose();
+    }
+    
+}

src/main/java/org/dna/mqtt/moquette/client/ClientMQTTHandler.java

@@ -0,0 +1,12 @@
+package org.dna.mqtt.moquette.client;
+
+import org.apache.mina.core.service.IoHandlerAdapter;
+
+/**
+ *
+ * @author andrea
+ */
+public class ClientMQTTHandler extends IoHandlerAdapter {
+//    public void sessionOpened(IoSession session) {}
+//    public void messageReceived(IoSession session, Object message) {
+}