TelnetServer.java

package com.github.nettybook.ch7;

import io.netty.bootstrap.ServerBootstrap;
import io.netty.channel.ChannelFuture;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.nio.NioServerSocketChannel;
import io.netty.handler.logging.LogLevel;
import io.netty.handler.logging.LoggingHandler;

public final class TelnetServer {
	private static final int PORT = 8023;

	public static void main(String[] args) throws Exception {
		EventLoopGroup bossGroup = new NioEventLoopGroup(1);
		EventLoopGroup workerGroup = new NioEventLoopGroup();

		try {
			ServerBootstrap b = new ServerBootstrap();
			b.group(bossGroup, workerGroup)
					.channel(NioServerSocketChannel.class)
					.handler(new LoggingHandler(LogLevel.INFO))
					.childHandler(new TelnetServerInitializer());

			ChannelFuture future = b.bind(PORT).sync();
			future.channel().closeFuture().sync();
		}
		finally {
			bossGroup.shutdownGracefully();
			workerGroup.shutdownGracefully();
		}
	}
}