package com.zuidaima.mina.server;

import java.io.IOException;
import java.net.InetSocketAddress;

import org.apache.mina.common.DefaultIoFilterChainBuilder;
import org.apache.mina.common.IoAcceptor;
import org.apache.mina.common.IoAcceptorConfig;
import org.apache.mina.common.IoHandlerAdapter;
import org.apache.mina.common.IoSession;
import org.apache.mina.filter.codec.ProtocolCodecFilter;
import org.apache.mina.filter.codec.textline.TextLineCodecFactory;
import org.apache.mina.transport.socket.nio.SocketAcceptor;
import org.apache.mina.transport.socket.nio.SocketAcceptorConfig;

public class HelloWorldServer {

	private static final int PORT = 8080;

	/**
	 * @param args
	 * @throws IOException
	 */
	public static void main(String[] args) throws IOException {
		IoAcceptor acceptor = new SocketAcceptor();
		IoAcceptorConfig config = new SocketAcceptorConfig();
		DefaultIoFilterChainBuilder chain = config.getFilterChain();
		// 使用字符串编码
		chain.addLast("codec", new ProtocolCodecFilter(
				new TextLineCodecFactory()));
		// 启动HelloServer
		acceptor.bind(new InetSocketAddress(PORT), new HelloHandler(), config);
		System.out.println("HelloServer started on port " + PORT);
	}
}

/**
 * HelloServer的处理逻辑
 * 
 * @author liudong
 */
class HelloHandler extends IoHandlerAdapter {
	/**
	 * 当有异常发生时触发
	 */
	@Override
	public void exceptionCaught(IoSession ssn, Throwable cause) {
		cause.printStackTrace();
		ssn.close();
	}

	/**
	 * 有新连接时触发
	 */
	@Override
	public void sessionOpened(IoSession ssn) throws Exception {
		System.out.println("session open for " + ssn.getRemoteAddress());
	}

	/**
	 * 连接被关闭时触发
	 */
	@Override
	public void sessionClosed(IoSession ssn) throws Exception {
		System.out.println("session closed from " + ssn.getRemoteAddress());
	}

	/**
	 * 收到来自客户端的消息
	 */
	public void messageReceived(IoSession ssn, Object msg) throws Exception {
		String ip = ssn.getRemoteAddress().toString();
		System.out.println("===> Message From " + ip + " : " + msg);
		ssn.write("Hello " + msg);
	}

}