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.common.ByteBuffer;
23 import org.apache.mina.common.IdleStatus;
24 import org.apache.mina.common.IoHandler;
25 import org.apache.mina.common.IoHandlerAdapter;
26 import org.apache.mina.common.IoSession;
27
28 /**
29 * {@link IoHandler} implementation for NetCat client. This class extended
30 * {@link IoHandlerAdapter} for convenience.
31 *
32 * @author The Apache Directory Project (mina-dev@directory.apache.org)
33 * @version $Rev: 555855 $, $Date: 2007-07-13 12:19:00 +0900 (Fri, 13 Jul 2007) $,
34 */
35 public class NetCatProtocolHandler extends IoHandlerAdapter {
36 public void sessionOpened(IoSession session) {
37 // Set reader idle time to 10 seconds.
38 // sessionIdle(...) method will be invoked when no data is read
39 // for 10 seconds.
40 session.setIdleTime(IdleStatus.READER_IDLE, 10);
41 }
42
43 public void sessionClosed(IoSession session) {
44 // Print out total number of bytes read from the remote peer.
45 System.err.println("Total " + session.getReadBytes() + " byte(s)");
46 }
47
48 public void sessionIdle(IoSession session, IdleStatus status) {
49 // Close the connection if reader is idle.
50 if (status == IdleStatus.READER_IDLE)
51 session.close();
52 }
53
54 public void messageReceived(IoSession session, Object message) {
55 ByteBuffer buf = (ByteBuffer) message;
56 // Print out read buffer content.
57 while (buf.hasRemaining()) {
58 System.out.print((char) buf.get());
59 }
60 System.out.flush();
61 }
62 }