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.directory.api.ldap.codec.decorators;
21
22
23 import java.nio.BufferOverflowException;
24 import java.nio.ByteBuffer;
25
26 import org.apache.directory.api.asn1.EncoderException;
27 import org.apache.directory.api.asn1.ber.tlv.TLV;
28 import org.apache.directory.api.i18n.I18n;
29 import org.apache.directory.api.ldap.codec.api.LdapApiService;
30 import org.apache.directory.api.ldap.codec.api.LdapCodecConstants;
31 import org.apache.directory.api.ldap.model.message.ModifyDnResponse;
32
33
34 /**
35 * A decorator for the ModifyDnResponse message
36 *
37 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
38 */
39 public class ModifyDnResponseDecorator extends ResponseDecorator<ModifyDnResponse>
40 implements ModifyDnResponse
41 {
42 /** The encoded modifyDnResponse length */
43 private int modifyDnResponseLength;
44
45
46 /**
47 * Makes a ModifyDnResponse encodable.
48 *
49 * @param codec The LDAP service instance
50 * @param decoratedMessage the decorated ModifyDnResponse
51 */
52 public ModifyDnResponseDecorator( LdapApiService codec, ModifyDnResponse decoratedMessage )
53 {
54 super( codec, decoratedMessage );
55 }
56
57
58 //-------------------------------------------------------------------------
59 // The Decorator methods
60 //-------------------------------------------------------------------------
61 /**
62 * Compute the ModifyDNResponse length
63 * <br>
64 * ModifyDNResponse :
65 * <pre>
66 * 0x6D L1
67 * |
68 * +--> LdapResult
69 *
70 * L1 = Length(LdapResult)
71 * Length(ModifyDNResponse) = Length(0x6D) + Length(L1) + L1
72 * </pre>
73 */
74 @Override
75 public int computeLength()
76 {
77 modifyDnResponseLength = ( ( LdapResultDecorator ) getLdapResult() ).computeLength();
78
79 return 1 + TLV.getNbBytes( modifyDnResponseLength ) + modifyDnResponseLength;
80 }
81
82
83 /**
84 * Encode the ModifyDnResponse message to a PDU.
85 *
86 * @param buffer The buffer where to put the PDU
87 */
88 @Override
89 public ByteBuffer encode( ByteBuffer buffer ) throws EncoderException
90 {
91 try
92 {
93 // The ModifyResponse Tag
94 buffer.put( LdapCodecConstants.MODIFY_DN_RESPONSE_TAG );
95 buffer.put( TLV.getBytes( modifyDnResponseLength ) );
96
97 // The LdapResult
98 ( ( LdapResultDecorator ) getLdapResult() ).encode( buffer );
99 }
100 catch ( BufferOverflowException boe )
101 {
102 throw new EncoderException( I18n.err( I18n.ERR_04005 ), boe );
103 }
104
105 return buffer;
106 }
107 }