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
21 package org.apache.directory.server.kerberos.changepwd.protocol;
22
23
24 import org.apache.directory.server.i18n.I18n;
25 import org.apache.directory.server.kerberos.changepwd.io.ChangePasswordDecoder;
26 import org.apache.mina.core.buffer.IoBuffer;
27 import org.apache.mina.core.session.IoSession;
28 import org.apache.mina.filter.codec.CumulativeProtocolDecoder;
29 import org.apache.mina.filter.codec.ProtocolDecoderOutput;
30
31
32 /**
33 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
34 */
35 public class MinaChangePasswordDecoder extends CumulativeProtocolDecoder
36 {
37 private int maxObjectSize = 16384; // 16KB
38
39
40 /**
41 * Returns the allowed maximum size of the object to be decoded.
42 *
43 * @return The max object size.
44 */
45 public int getMaxObjectSize()
46 {
47 return maxObjectSize;
48 }
49
50
51 /**
52 * Sets the allowed maximum size of the object to be decoded.
53 * If the size of the object to be decoded exceeds this value, this
54 * decoder will throw a {@link IllegalArgumentException}. The default
55 * value is <tt>16384</tt> (16KB).
56 *
57 * @param maxObjectSize The maximum size for a PDU
58 */
59 public void setMaxObjectSize( int maxObjectSize )
60 {
61 if ( maxObjectSize <= 0 )
62 {
63 throw new IllegalArgumentException( I18n.err( I18n.ERR_634, maxObjectSize ) );
64 }
65
66 this.maxObjectSize = maxObjectSize;
67 }
68
69
70 @Override
71 protected boolean doDecode( IoSession session, IoBuffer in, ProtocolDecoderOutput out ) throws Exception
72 {
73 boolean isTcp = !session.getTransportMetadata().isConnectionless();
74
75 out.write( ChangePasswordDecoder.decode( in.buf(), isTcp ) );
76
77 return true;
78 }
79 }