GWTChatServer.java

/**
 * The MIT License
 * Copyright (c) 2010 Tad Glines
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package com.glines.socketio.sample.gwtchat;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.server.nio.SelectChannelConnector;
import org.eclipse.jetty.servlet.DefaultServlet;
import org.eclipse.jetty.servlet.ServletContextHandler;
import org.eclipse.jetty.servlet.ServletHolder;

import com.glines.socketio.server.transport.FlashSocketTransport;

public class GWTChatServer {
	private static class StaticServlet extends HttpServlet {
		@Override
		protected void doGet(HttpServletRequest req, HttpServletResponse resp)
				throws ServletException, IOException {
			String path = req.getRequestURI();
			path = path.substring(req.getContextPath().length());
			if ("/gwtchat.html".equals(path)) {
				resp.setContentType("text/html");
				InputStream is = this.getClass().getClassLoader().getResourceAsStream("com/glines/socketio/examples/gwtchat/gwtchat.html");
				OutputStream os = resp.getOutputStream();
				byte[] data = new byte[8192];
				int nread = 0;
				while ((nread = is.read(data)) > 0) {
					os.write(data, 0, nread);
					if (nread < data.length) {
						break;
					}
				}
			}
		}
	}

	/**
	 * @param args
	 * @throws Exception 
	 */
	public static void main(String[] args) throws Exception {
		String war_dir = "./war";
		String host = "localhost";
		int port = 8080;

		if (args.length > 0) {
			war_dir = args[0];
		}

		if (args.length > 1) {
			host = args[1];
		}

		if (args.length > 2) {
			port = Integer.parseInt(args[2]);
		}
		
		Server server = new Server();
	    SelectChannelConnector connector = new SelectChannelConnector();
	    connector.setHost(host);
	    connector.setPort(port);

	    server.addConnector(connector);

	    ServletContextHandler context = new ServletContextHandler(ServletContextHandler.SESSIONS);
	    context.setResourceBase(war_dir);
	    ServletHolder holder = new ServletHolder(new GWTChatSocketServlet());
	    holder.setInitParameter(FlashSocketTransport.FLASHPOLICY_SERVER_HOST_KEY, host);
	    holder.setInitParameter(FlashSocketTransport.FLASHPOLICY_DOMAIN_KEY, host);
	    holder.setInitParameter(FlashSocketTransport.FLASHPOLICY_PORTS_KEY, ""+ port);
	    context.addServlet(holder, "/socket.io/*");
	    context.addServlet(new ServletHolder(new StaticServlet()), "/gwtchat.html");
	    ServletHolder defaultServlet = new ServletHolder(new DefaultServlet());
	    context.addServlet(defaultServlet, "/com.glines.socketio.examples.gwtchat.GWTChat/*");

	    server.setHandler(context);
	    server.start();
	}

}