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package com.acme;
//========================================================================
//Copyright 2011-2012 Mort Bay Consulting Pty. Ltd.
//------------------------------------------------------------------------
//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.
//========================================================================
import java.io.IOException;
import java.util.Set;
import java.util.concurrent.CopyOnWriteArraySet;
import javax.servlet.RequestDispatcher;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.eclipse.jetty.util.TypeUtil;
import org.eclipse.jetty.util.log.Log;
import org.eclipse.jetty.util.log.Logger;
import org.eclipse.jetty.websocket.WebSocket;
import org.eclipse.jetty.websocket.WebSocketServlet;
public class WebSocketChatServlet extends WebSocketServlet
{
private static final Logger LOG = Log.getLogger(WebSocketChatServlet.class);
private final Set<ChatWebSocket> _members = new CopyOnWriteArraySet<ChatWebSocket>();
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws javax.servlet.ServletException ,IOException
{
getServletContext().getNamedDispatcher("default").forward(request,response);
};
public WebSocket doWebSocketConnect(HttpServletRequest request, String protocol)
{
return new ChatWebSocket();
}
/* ------------------------------------------------------------ */
/* ------------------------------------------------------------ */
class ChatWebSocket implements WebSocket.OnTextMessage
{
Connection _connection;
public void onOpen(Connection connection)
{
// LOG.info(this+" onConnect");
_connection=connection;
_members.add(this);
}
public void onMessage(byte frame, byte[] data,int offset, int length)
{
// LOG.info(this+" onMessage: "+TypeUtil.toHexString(data,offset,length));
}
public void onMessage(String data)
{
if (data.indexOf("disconnect")>=0)
_connection.disconnect();
else
{
// LOG.info(this+" onMessage: "+data);
for (ChatWebSocket member : _members)
{
try
{
member._connection.sendMessage(data);
}
catch(IOException e)
{
LOG.warn(e);
}
}
}
}
public void onClose(int code, String message)
{
// LOG.info(this+" onDisconnect");
_members.remove(this);
}
}
}
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