added main() for SwissTiming UDP receiver

java/com.sap.sailing.domain.swisstimingadapter/src/com/sap/sailing/domain/swisstimingadapter/SwissTimingListener.java

@@ -1,5 +0,0 @@
-package com.sap.sailing.domain.swisstimingadapter;
-
-public interface SwissTimingListener {
-    void received(SwissTimingMessage message);
-}

java/com.sap.sailing.domain.swisstimingadapter/src/com/sap/sailing/domain/swisstimingadapter/impl/SwissTimingUDPReceiverImpl.java

@@ -1,5 +1,6 @@
 package com.sap.sailing.domain.swisstimingadapter.impl;
 
+import java.io.IOException;
 import java.net.SocketException;
 
 import com.sap.sailing.domain.swisstimingadapter.SwissTimingMessage;
@@ -20,5 +21,22 @@ public class SwissTimingUDPReceiverImpl extends UDPReceiver<SwissTimingMessage,
     protected UDPMessageParser<SwissTimingMessage> getParser() {
         return parser;
     }
+    
+    /**
+     * Launches a listener and dumps messages received to the console
+     * @param args 0: port to listen on
+     *  
+     * @throws IOException
+     */
+    public static void main(String[] args) throws IOException {
+        SwissTimingUDPReceiverImpl receiver = new SwissTimingUDPReceiverImpl(Integer.valueOf(args[0]));
+        receiver.addListener(new SwissTimingMessageListener() {
+            @Override
+            public void received(SwissTimingMessage message) {
+                System.out.println(message);
+            }
+        }, /* validMessagesOnly */ false);
+        receiver.run();
+    }
 
 }