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.netcat;
21
22 import org.apache.mina.core.buffer.IoBuffer;
23 import org.apache.mina.core.service.IoHandler;
24 import org.apache.mina.core.service.IoHandlerAdapter;
25 import org.apache.mina.core.session.IdleStatus;
26 import org.apache.mina.core.session.IoSession;
27
28 /**
29 * {@link IoHandler} implementation for NetCat client. This class extended
30 * {@link IoHandlerAdapter} for convenience.
31 *
32 * @author The Apache MINA Project (dev@mina.apache.org)
33 * @version $Rev: 671827 $, $Date: 2008-06-26 10:49:48 +0200 (jeu, 26 jun 2008) $,
34 */
35 public class NetCatProtocolHandler extends IoHandlerAdapter {
36 @Override
37 public void sessionOpened(IoSession session) {
38 // Set reader idle time to 10 seconds.
39 // sessionIdle(...) method will be invoked when no data is read
40 // for 10 seconds.
41 session.getConfig().setIdleTime(IdleStatus.READER_IDLE, 10);
42 }
43
44 @Override
45 public void sessionClosed(IoSession session) {
46 // Print out total number of bytes read from the remote peer.
47 System.err.println("Total " + session.getReadBytes() + " byte(s)");
48 }
49
50 @Override
51 public void sessionIdle(IoSession session, IdleStatus status) {
52 // Close the connection if reader is idle.
53 if (status == IdleStatus.READER_IDLE) {
54 session.close();
55 }
56 }
57
58 @Override
59 public void messageReceived(IoSession session, Object message) {
60 IoBuffer buf = (IoBuffer) message;
61 // Print out read buffer content.
62 while (buf.hasRemaining()) {
63 System.out.print((char) buf.get());
64 }
65 System.out.flush();
66 }
67 }