nettyechoserverdemo.EchoServerHandler.java Source code

Introduction

Here is the source code for nettyechoserverdemo.EchoServerHandler.java

Source

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package nettyechoserverdemo;

import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.channel.ChannelHandlerAdapter;
import io.netty.channel.ChannelHandlerContext;

/**
 *
 * @author allen
 */
public class EchoServerHandler extends ChannelHandlerAdapter {

    private int counter;

    public EchoServerHandler() {
        counter = 0;
    } //EchoServerHandler()

    @Override
    public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
        String body = (String) msg;

        System.out.println("This is " + ++counter + " times receive client : [" + body + "]");

        body += "$_";

        ByteBuf echo = Unpooled.copiedBuffer(body.getBytes());

        ctx.writeAndFlush(echo);
    } //channelRead()

    @Override
    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
        cause.printStackTrace();
        ctx.close();
    } //exceptionCaught()

} //EchoServerHandler