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
021package org.apache.directory.server.dns.io.encoder;
022
023
024import org.apache.directory.server.dns.messages.ResourceRecord;
025import org.apache.directory.server.dns.store.DnsAttribute;
026import 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 */
049public class PointerRecordEncoder extends ResourceRecordEncoder
050{
051    protected void putResourceRecordData( IoBuffer byteBuffer, ResourceRecord record )
052    {
053        String domainName = record.get( DnsAttribute.DOMAIN_NAME );
054
055        putDomainName( byteBuffer, domainName );
056    }
057}