用mina写了一个Memcache服务端的通讯模拟程序

我用mina写了一个Memcache服务端的通讯模拟程序
使用的是 mina-core-2.0.0-M1.jar
一共3各类
HypTestServerHandler
MinaUtilRun 启动类
TimeServerHandler

欢迎和我交流着方面的问题。

public class TimeServerHandler extends IoHandlerAdapter {
	public void exceptionCaught(IoSession session, Throwable t)
			throws Exception { // 出现异常的时候调用.
		t.printStackTrace();
		session.close();
	}

	public void messageReceived(IoSession session, Object msg) throws Exception { // 接收客户端新的消息的时候调用.
		String str = msg.toString();
		if (str.trim().equalsIgnoreCase("quit")) {
			session.close();
			return;
		}

		Date date = new Date();
		session.write(date.toString());
		System.out.println("Message written...");
	}

	public void sessionCreated(IoSession session) throws Exception { // 当一个客户端连接到服务器的时候被调用.
		System.out.println("Session created...");

		if (session.getTransportType() == TransportType.SOCKET)
			((SocketSessionConfig) session.getConfig())
					.setReceiveBufferSize(2048);

		session.setIdleTime(IdleStatus.BOTH_IDLE, 10);
	}
}

public class MinaUtilRun {

	private static final int PORT = 11211;

    public static void test() throws Exception {

        ByteBuffer.setUseDirectBuffers(false);
        ByteBuffer.setAllocator(new SimpleByteBufferAllocator());

        IoAcceptor acceptor = new SocketAcceptor();

        SocketAcceptorConfig cfg = new SocketAcceptorConfig(); //创建一个与SocketAcceptor相关联的配置对象.
        cfg.getSessionConfig().setReuseAddress( true );
        cfg.getFilterChain().addLast( "logger", new LoggingFilter() );
        cfg.getFilterChain().addLast( "codec", new ProtocolCodecFilter( new HypLineCodecFactory( Charset.forName( "GBK" ))));

        //acceptor.bind( new InetSocketAddress(PORT), new TimeServerHandler(), cfg);//绑定端口,处理对象和配置对象.
        acceptor.bind( new InetSocketAddress(PORT), new HypTestServerHandler(), cfg);//绑定端口,处理对象和配置对象.

        System.out.println("MINA Time server started.");

    }

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		try {
			test();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

}

public class HypTestServerHandler extends IoHandlerAdapter {
	public void exceptionCaught(IoSession session, Throwable t)
			throws Exception { // 出现异常的时候调用.
		t.printStackTrace();
		session.close();
	}

	public void messageReceived(IoSession session, Object msg) throws Exception { // 接收客户端新的消息的时候调用.
		String stat = (String) session.getAttribute("stat");
		String str = msg.toString();
		JavaUtil.debugPrint("receive:" + str);
		if(stat.equals("GetCommand")){
			if(str.equals("version")){
				session.write("VERSION 1.2.2");
				JavaUtil.debugPrint("response verison .... VERSION 1.2.2");
				return;
			}	
			if(str.startsWith("set ")){
				String[] parts = str.split(" ");
				int dataSize = Integer.parseInt(parts[4]);
				JavaUtil.debugPrint("dataSize:" + dataSize);
				session.setAttribute("dataSize", dataSize);
				session.setAttribute("readSize", 0);
				session.setAttribute("stat", "readData");
				session.setAttribute("dataBuf", new StringBuilder());
				session.setAttribute("currentCmd", parts);
			}
		}else if(stat.equals("readData")){
			int dataSize = (Integer)session.getAttribute("dataSize");
			int readSize = (Integer)session.getAttribute("readSize");
			StringBuilder buf = (StringBuilder)session.getAttribute("dataBuf");
			if(buf.length() > 0){
				buf.append("\r\n");
			}
			buf.append(str);
			readSize += str.length() + 2;
			session.setAttribute("readSize", readSize);
			JavaUtil.debugPrint("read data:" + readSize + "/" +dataSize );
			if(readSize == dataSize){
				//处理命令
				String[] parts = (String[])session.getAttribute("currentCmd");				
				System.out.println("buf.length():" + buf.length());
				System.out.println(buf.toString());
				session.write("STORED");				
				session.setAttribute("stat", "GetCommand");
				}
		}







		//Date date = new Date();
		//session.write(date.toString());
		System.out.println("Message written...");
	}

	public void sessionCreated(IoSession session) throws Exception { // 当一个客户端连接到服务器的时候被调用.
		System.out.println("Session created...");

		if (session.getTransportType() == TransportType.SOCKET)
			((SocketSessionConfig) session.getConfig())
					.setReceiveBufferSize(2048);

		session.setIdleTime(IdleStatus.BOTH_IDLE, 10);
		session.setAttribute("stat", "GetCommand");
	}
}