RequestHandler.java

package com.snda.mzang.tvtogether.server.handler;

import org.jboss.netty.buffer.ChannelBuffer;
import org.jboss.netty.buffer.ChannelBuffers;
import org.jboss.netty.channel.Channel;
import org.jboss.netty.channel.ChannelFuture;
import org.jboss.netty.channel.ChannelFutureListener;
import org.jboss.netty.channel.ChannelHandlerContext;
import org.jboss.netty.channel.ExceptionEvent;
import org.jboss.netty.channel.MessageEvent;
import org.jboss.netty.channel.SimpleChannelHandler;

import com.snda.mzang.tvtogether.base.B;
import com.snda.mzang.tvtogether.server.protocol.CommPackage;
import com.snda.mzang.tvtogether.server.protocol.CommPackageProcessor;

public class RequestHandler extends SimpleChannelHandler {

	public static final RequestHandler INSTANCE = new RequestHandler();

	private CommPackageProcessor commPackageProcessor = new CommPackageProcessor();

	private RequestHandler() {

	}

	@Override
	public void messageReceived(ChannelHandlerContext ctx, MessageEvent e) throws Exception {
		Channel channel = e.getChannel();
		CommPackage msg = (CommPackage) e.getMessage();
		System.out.println("Message Recieved:" + msg);

		byte[] ret = commPackageProcessor.process(msg);

		ChannelBuffer buff = ChannelBuffers.buffer(ret.length + B.MSG_INT_LEN);
		buff.writeInt(ret.length);
		buff.writeBytes(ret);

		try {
			ChannelFuture future = channel.write(buff);

			future.addListener(new ChannelFutureListener() {

				public void operationComplete(ChannelFuture future) throws Exception {
					future.getChannel().close();
				}

			});

		} catch (Throwable ex) {
			ex.printStackTrace();
		}

		super.messageReceived(ctx, e);
	}

	@Override
	public void exceptionCaught(ChannelHandlerContext ctx, ExceptionEvent e) throws Exception {
		ctx.getChannel().close();
	}
}