#Overview

This project is an open-source Java implementation of Socket.IO server. Based on Netty server framework. Required JDK 1.5 (or above).

Licensed under the Apache License 2.0.

Features

• Supports 0.7+ version of Socket.IO-client up to latest - 0.9.6
• Supports xhr-polling transport
• Supports websocket transport (Hixie-75/76/Hybi-00, Hybi-10..Hybi-13)

#Usage example

##Server

SocketIOListener handler = new SocketIOListener() {

	@Override
	public void onEvent(SocketIOClient client, Packet packet) {
        ...
	}

	@Override
	public void onMessage(SocketIOClient client, Packet packet) {
                    // get a message
                    packet.getData().toString();
        ...
	}

	@Override
	public void onDisconnect(SocketIOClient client) {
        ...
	}

	@Override
	public void onConnect(final SocketIOClient client) {
        ...
	}

	@Override
	public void onJsonObject(SocketIOClient client, Packet packet) {
                    // get a json object
                    packet.getData();

        ...
                    SampleObject obj = new SampleObject();
                    // send object to socket.io client
                    client.sendJsonObject(obj);
	}
};

Configuration config = new Configuration();
config.setHostname("localhost");
config.setPort(81);
config.setListener(handler);

SocketIOServer server = new SocketIOServer(config);
server.start();
...

server.stop();

##Client

    <script type="text/javascript" src="socket.io.js" charset="utf-8"></script>

    <script type="text/javascript">

           var socket = io.connect('http://localhost:81', {
             'reconnection delay' : 2000,
             'force new connection' : true
           });

           socket.on('message', function(data) {
                // here is your handler on messages from server
           });

       socket.on('connect', function() {
        // connection established, now we can send an objects

                // send json-object to server
                var obj = ...
                socket.json.send(obj);
       });

    </script>