com.liusu.tcp.proxy.mine.server.ReadBackServer.java Source code

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Here is the source code for com.liusu.tcp.proxy.mine.server.ReadBackServer.java

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/*
 * Copyright 2013-2018 Lilinfeng.
 *  
 * Licensed 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 com.liusu.tcp.proxy.mine.server;

import io.netty.bootstrap.ServerBootstrap;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelOption;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.SocketChannel;
import io.netty.channel.socket.nio.NioServerSocketChannel;
import io.netty.handler.codec.LineBasedFrameDecoder;
import io.netty.handler.codec.string.StringDecoder;

/**
 * @author zzh
 * 
 */
public class ReadBackServer {

    public void bind(int port) throws Exception {
        // ??NIO
        EventLoopGroup bossGroup = new NioEventLoopGroup();
        EventLoopGroup workerGroup = new NioEventLoopGroup();
        try {
            ServerBootstrap b = new ServerBootstrap();
            b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
                    .option(ChannelOption.SO_BACKLOG, 1024).childHandler(new ChildChannelHandler());
            // ???
            ChannelFuture f = b.bind(port).sync();

            // f.addListener(ChannelFutureListener.CLOSE);
            // ???
            f.channel().closeFuture().sync();
        } finally {
            // ?
            bossGroup.shutdownGracefully();
            workerGroup.shutdownGracefully();
        }
    }

    private class ChildChannelHandler extends ChannelInitializer<SocketChannel> {
        @Override
        protected void initChannel(SocketChannel channel) throws Exception {
            //          channel.pipeline().addLast(new LineBasedFrameDecoder(1024));
            //          channel.pipeline().addLast(new StringDecoder());
            channel.pipeline().addLast(new ReadBackServerChannelHandler());
        }

    }

    /**
     * @param args
     * @throws Exception
     */
    public static void main(String[] args) throws Exception {
        int port = 50088;
        if (args != null && args.length > 0) {
            try {
                port = Integer.valueOf(args[0]);
            } catch (NumberFormatException e) {
                // 
            }
        }
        new ReadBackServer().bind(port);
    }
}