1 files changed, 110 insertions, 0 deletions
diff --git a/src/main/java/protocols/implementations/VSPingPongProtocol.java b/src/main/java/protocols/implementations/VSPingPongProtocol.java
new file mode 100644
index 0000000..b1f3d20
--- /dev/null
+++ b/src/main/java/protocols/implementations/VSPingPongProtocol.java
@@ -0,0 +1,110 @@
+package protocols.implementations;
+
+import core.VSMessage;
+import protocols.VSAbstractProtocol;
+
+/**
+ * The class VSPingPongProtocol, an implementation of the ping pong protocol.
+ *
+ * @author Paul C. Buetow
+ */
+public class VSPingPongProtocol extends VSAbstractProtocol {
+    /** The client counter. */
+    private int clientCounter;
+
+    /** The server counter. */
+    private int serverCounter;
+
+    /**
+     * Instantiates a new ping pong protocol.
+     */
+    public VSPingPongProtocol() {
+        super(VSAbstractProtocol.HAS_ON_CLIENT_START);
+        setClassname(getClass().toString());
+    }
+
+    /* (non-Javadoc)
+     * @see events.VSAbstractProtocol#onClientInit()
+     */
+    public void onClientInit() {
+    }
+
+    /* (non-Javadoc)
+     * @see protocols.VSAbstractProtocol#onClientReset()
+     */
+    public void onClientReset() {
+        clientCounter = 0;
+    }
+
+    /* (non-Javadoc)
+     * @see protocols.VSAbstractProtocol#onClientStart()
+     */
+    public void onClientStart() {
+        VSMessage message = new VSMessage();
+        message.setBoolean("fromClient", true);
+        message.setInteger("counter", ++clientCounter);
+        super.sendMessage(message);
+    }
+
+    /* (non-Javadoc)
+     * @see protocols.VSAbstractProtocol#onClientRecv(core.VSMessage)
+     */
+    public void onClientRecv(VSMessage recvMessage) {
+        if (!recvMessage.getBoolean("fromServer"))
+            return;
+
+        super.log("message: " + recvMessage.getInteger("counter"));
+
+        VSMessage message = new VSMessage();
+        message.setBoolean("fromClient", true);
+        message.setInteger("counter", ++clientCounter);
+        super.sendMessage(message);
+    }
+
+    /* (non-Javadoc)
+     * @see protocols.VSAbstractProtocol#onClientSchedule()
+     */
+    public void onClientSchedule() {
+    }
+
+    /* (non-Javadoc)
+     * @see events.VSAbstractProtocol#onServerInit()
+     */
+    public void onServerInit() {
+    }
+
+    /* (non-Javadoc)
+     * @see protocols.VSAbstractProtocol#onServerReset()
+     */
+    public void onServerReset() {
+        serverCounter = 0;
+    }
+
+    /* (non-Javadoc)
+     * @see protocols.VSAbstractProtocol#onServerRecv(core.VSMessage)
+     */
+    public void onServerRecv(VSMessage recvMessage) {
+        if (!recvMessage.getBoolean("fromClient"))
+            return;
+
+        super.log("message: " + recvMessage.getInteger("counter"));
+
+        VSMessage message = new VSMessage();
+        message.setBoolean("fromServer", true);
+        message.setInteger("counter", ++serverCounter);
+        super.sendMessage(message);
+    }
+
+    /* (non-Javadoc)
+     * @see protocols.VSAbstractProtocol#onServerSchedule()
+     */
+    public void onServerSchedule() {
+    }
+
+    /* (non-Javadoc)
+     * @see protocols.VSAbstractProtocol#toString()
+     */
+    public String toString() {
+        return super.toString() + "; New message afterwards";
+    }
+}