View Javadoc

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.dns.io.encoder;
22  
23  
24  import org.apache.directory.server.dns.messages.ResourceRecord;
25  import org.apache.directory.server.dns.store.DnsAttribute;
26  import org.apache.mina.common.ByteBuffer;
27  
28  
29  /**
30   * 3.3.12. PTR RDATA format
31   * 
32   *     +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
33   *     /                   PTRDNAME                    /
34   *     +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
35   * 
36   * where:
37   * 
38   * PTRDNAME        A <domain-name> which points to some location in the
39   *                 domain name space.
40   * 
41   * PTR records cause no additional section processing.  These RRs are used
42   * in special domains to point to some other location in the domain space.
43   * These records are simple data, and don't imply any special processing
44   * similar to that performed by CNAME, which identifies aliases.  See the
45   * description of the IN-ADDR.ARPA domain for an example.
46   * 
47   * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
48   * @version $Rev: 501531 $, $Date: 2007-01-30 20:51:18 +0100 (Di, 30 Jan 2007) $
49   */
50  public class PointerRecordEncoder extends ResourceRecordEncoder
51  {
52      protected void putResourceRecordData( ByteBuffer byteBuffer, ResourceRecord record )
53      {
54          String domainName = record.get( DnsAttribute.DOMAIN_NAME );
55  
56          putDomainName( byteBuffer, domainName );
57      }
58  }