001    /*
002     *  Licensed to the Apache Software Foundation (ASF) under one
003     *  or more contributor license agreements.  See the NOTICE file
004     *  distributed with this work for additional information
005     *  regarding copyright ownership.  The ASF licenses this file
006     *  to you under the Apache License, Version 2.0 (the
007     *  "License"); you may not use this file except in compliance
008     *  with the License.  You may obtain a copy of the License at
009     *  
010     *    http://www.apache.org/licenses/LICENSE-2.0
011     *  
012     *  Unless required by applicable law or agreed to in writing,
013     *  software distributed under the License is distributed on an
014     *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015     *  KIND, either express or implied.  See the License for the
016     *  specific language governing permissions and limitations
017     *  under the License. 
018     *  
019     */
020    
021    package org.apache.directory.server.dns.io.encoder;
022    
023    
024    import org.apache.directory.server.dns.messages.ResourceRecord;
025    import org.apache.directory.server.dns.store.DnsAttribute;
026    import org.apache.mina.core.buffer.IoBuffer;
027    
028    
029    /**
030     * 3.3.12. PTR RDATA format
031     * 
032     *     +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
033     *     /                   PTRDNAME                    /
034     *     +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
035     * 
036     * where:
037     * 
038     * PTRDNAME        A <domain-name> which points to some location in the
039     *                 domain name space.
040     * 
041     * PTR records cause no additional section processing.  These RRs are used
042     * in special domains to point to some other location in the domain space.
043     * These records are simple data, and don't imply any special processing
044     * similar to that performed by CNAME, which identifies aliases.  See the
045     * description of the IN-ADDR.ARPA domain for an example.
046     * 
047     * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
048     * @version $Rev: 725712 $, $Date: 2008-12-11 16:32:04 +0100 (Thu, 11 Dec 2008) $
049     */
050    public class PointerRecordEncoder extends ResourceRecordEncoder
051    {
052        protected void putResourceRecordData( IoBuffer byteBuffer, ResourceRecord record )
053        {
054            String domainName = record.get( DnsAttribute.DOMAIN_NAME );
055    
056            putDomainName( byteBuffer, domainName );
057        }
058    }