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 * 3.3.1. CNAME RDATA format
031 * 
032 *     +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
033 *     /                     CNAME                     /
034 *     /                                               /
035 *     +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
036 * 
037 * where:
038 * 
039 * CNAME           A <domain-name> which specifies the canonical or primary
040 *                 name for the owner.  The owner name is an alias.
041 * 
042 * CNAME RRs cause no additional section processing, but name servers may
043 * choose to restart the query at the canonical name in certain cases.  See
044 * the description of name server logic in [RFC-1034] for details.
045 * 
046 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
047 */
048public class CanonicalNameRecordEncoder extends ResourceRecordEncoder
049{
050    protected void putResourceRecordData( IoBuffer byteBuffer, ResourceRecord record )
051    {
052        String domainName = record.get( DnsAttribute.DOMAIN_NAME );
053
054        putDomainName( byteBuffer, domainName );
055    }
056}