1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 *
19 */
20 package org.apache.mina.example.tennis;
21
22 import org.apache.mina.common.IoHandler;
23 import org.apache.mina.common.IoHandlerAdapter;
24 import org.apache.mina.common.IoSession;
25
26 /**
27 * A {@link IoHandler} implementation which plays a tennis game.
28 *
29 * @author The Apache Directory Project (mina-dev@directory.apache.org)
30 * @version $Rev: 555855 $, $Date: 2007-07-13 12:19:00 +0900 (Fri, 13 Jul 2007) $
31 */
32 public class TennisPlayer extends IoHandlerAdapter {
33 private static int nextId = 0;
34
35 /** Player ID **/
36 private final int id = nextId++;
37
38 public void sessionOpened(IoSession session) {
39 System.out.println("Player-" + id + ": READY");
40 }
41
42 public void sessionClosed(IoSession session) {
43 System.out.println("Player-" + id + ": QUIT");
44 }
45
46 public void messageReceived(IoSession session, Object message) {
47 System.out.println("Player-" + id + ": RCVD " + message);
48
49 TennisBall ball = (TennisBall) message;
50
51 // Stroke: TTL decreases and PING/PONG state changes.
52 ball = ball.stroke();
53
54 if (ball.getTTL() > 0) {
55 // If the ball is still alive, pass it back to peer.
56 session.write(ball);
57 } else {
58 // If the ball is dead, this player loses.
59 System.out.println("Player-" + id + ": LOSE");
60 session.close();
61 }
62 }
63
64 public void messageSent(IoSession session, Object message) {
65 System.out.println("Player-" + id + ": SENT " + message);
66 }
67
68 public void exceptionCaught(IoSession session, Throwable cause) {
69 cause.printStackTrace();
70 session.close();
71 }
72 }