nettyprivateprotocolclientdemo.NettyClient.java Source code

Introduction

Here is the source code for nettyprivateprotocolclientdemo.NettyClient.java

Source

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package nettyprivateprotocolclientdemo;

import io.netty.bootstrap.Bootstrap;
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.NioSocketChannel;
import io.netty.handler.timeout.ReadTimeoutHandler;
import java.net.InetSocketAddress;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;
import util.NettyConstant;
import util.NettyMessageDecoder;
import util.NettyMessageEncoder;

/**
 *
 * @author allen
 */
public class NettyClient {
    private ScheduledExecutorService executor = Executors.newScheduledThreadPool(1);
    EventLoopGroup group = new NioEventLoopGroup();

    public void connect(int port, String host) throws InterruptedException {
        try {
            Bootstrap bootstrap = new Bootstrap();

            bootstrap.group(group).channel(NioSocketChannel.class).option(ChannelOption.TCP_NODELAY, true)
                    .handler(new ChannelInitializer<SocketChannel>() {

                        @Override
                        protected void initChannel(SocketChannel ch) throws Exception {
                            ch.pipeline().addLast(new NettyMessageDecoder(1024 * 1024, 4, 4));
                            ch.pipeline().addLast("MessageEncoder", new NettyMessageEncoder());
                            ch.pipeline().addLast("readTimeoutHandler", new ReadTimeoutHandler(50));
                            ch.pipeline().addLast("LoginAuthHandler", new LoginAuthReqHandler());
                            ch.pipeline().addLast("HeartBeatHandler", new HeartBeatReqHandler());
                        } //initChannel()

                    });

            ChannelFuture future = bootstrap.connect(new InetSocketAddress(host, port),
                    new InetSocketAddress(NettyConstant.LOCAL_IP, NettyConstant.LOCAL_PORT)).sync();

            future.channel().closeFuture().sync();
        } finally {
            executor.execute(new Runnable() {

                @Override
                public void run() {
                    try {
                        TimeUnit.SECONDS.sleep(5);
                        try {
                            connect(NettyConstant.PORT, NettyConstant.REMOTEIP);
                        } catch (Exception e) {
                            e.printStackTrace();
                        }

                    } catch (InterruptedException ie) {
                        ie.printStackTrace();
                    }
                } //run()

            });

        } //try-finally

    } //connect()

} //NettyClient