/*
 * Copyright 2011 The Netty Project
 *
 * The Netty Project licenses this file to you under the Apache License,
 * version 2.0 (the "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at:
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations
 * under the License.
 */
package io.netty.example.echo;

import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelOption;
import io.netty.channel.ServerChannelBootstrap;
import io.netty.channel.socket.SocketChannel;
import io.netty.channel.socket.nio.NioEventLoop;
import io.netty.channel.socket.nio.NioServerSocketChannel;
import io.netty.handler.logging.LogLevel;
import io.netty.handler.logging.LoggingHandler;

import java.net.InetSocketAddress;

/**
 * Echoes back any received data from a client.
 */
public class EchoServer {

    private final int port;

    public EchoServer(int port) {
        this.port = port;
    }

    public void run() throws Exception {
        // Configure the server.
        ServerChannelBootstrap b = new ServerChannelBootstrap();
        try {
            b.eventLoop(new NioEventLoop(), new NioEventLoop())
             .channel(new NioServerSocketChannel())
             .option(ChannelOption.SO_BACKLOG, 100)
             .localAddress(new InetSocketAddress(port))
             .childOption(ChannelOption.TCP_NODELAY, true)
             .childInitializer(new ChannelInitializer<SocketChannel>() {
                 @Override
                 public void initChannel(SocketChannel ch) throws Exception {
                     ch.pipeline().addLast(
                             new LoggingHandler(LogLevel.INFO),
                             new EchoServerHandler());
                 }
             });

            // Start the server.
            ChannelFuture f = b.bind().sync();

            // Wait until the server socket is closed.
            f.channel().closeFuture().sync();
        } finally {
            // Shut down all event loops to terminate all threads.
            b.shutdown();
        }
    }

    public static void main(String[] args) throws Exception {
        int port;
        if (args.length > 0) {
            port = Integer.parseInt(args[0]);
        } else {
            port = 8080;
        }
        new EchoServer(port).run();
    }
}

@@ -828,16 +828,68 @@
 tstrap;%0A
+import io.netty.channel.socket.ServerSocketChannel;%0A
 import i
@@ -1776,16 +1776,311 @@
 , true)%0A
+             .initializer(new ChannelInitializer%3CServerSocketChannel%3E() %7B%0A                @Override%0A                public void initChannel(ServerSocketChannel ch) throws Exception %7B%0A                    ch.pipeline().addLast(new LoggingHandler(LogLevel.INFO));%0A                %7D%0A             %7D)%0A
         

Add LoggingHandler to ServerSocketChannel's pipeline