LeanerServer.java

package org.ruogu.netty.server;

import io.netty.bootstrap.ServerBootstrap;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelOption;
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;

import org.ruogu.netty.initializer.LeanerServerInitializer;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class LeanerServer {
	private static Logger LOG = LoggerFactory.getLogger(LeanerServer.class);

	private final int port;

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

	public void run() throws Exception {
		EventLoopGroup bossGroup = new NioEventLoopGroup();
		EventLoopGroup workerGroup = new NioEventLoopGroup();
		try {
			ServerBootstrap b = new ServerBootstrap();
			b.group(bossGroup, workerGroup);
			b.channel(NioServerSocketChannel.class);
			b.option(ChannelOption.SO_BACKLOG, 100);
			b.option(ChannelOption.TCP_NODELAY, true);
			b.option(ChannelOption.SO_KEEPALIVE, true);
			b.handler(new LoggingHandler(LogLevel.INFO));
			b.childHandler(new LeanerServerInitializer());

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

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

	public static void main(String[] args) throws Exception {
		int port;
		if (args.length > 0) {
			port = Integer.parseInt(args[0]);
		} else {
			port = 8090;
		}
		new LeanerServer(port).run();
	}

}