trunk/protocol-dns/src/main/java/org/apache/directory/server/dns/io/encoder/CanonicalNameRecordEncoder.java

/*
 *  Licensed to the Apache Software Foundation (ASF) under one
 *  or more contributor license agreements.  See the NOTICE file
 *  distributed with this work for additional information
 *  regarding copyright ownership.  The ASF licenses this file
 *  to you under the Apache License, Version 2.0 (the
 *  "License"); you may not use this file except in compliance
 *  with the License.  You may obtain a copy of the License at
 *  
 *    http://www.apache.org/licenses/LICENSE-2.0
 *  
 *  Unless required by applicable law or agreed to in writing,
 *  software distributed under the License is distributed on an
 *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 *  KIND, either express or implied.  See the License for the
 *  specific language governing permissions and limitations
 *  under the License. 
 *  
 */

package org.apache.directory.server.dns.io.encoder;


import org.apache.directory.server.dns.messages.ResourceRecord;
import org.apache.directory.server.dns.store.DnsAttribute;
import org.apache.mina.core.buffer.IoBuffer;


/**
 * 3.3.1. CNAME RDATA format
 * 
 *     +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
 *     /                     CNAME                     /
 *     /                                               /
 *     +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
 * 
 * where:
 * 
 * CNAME           A <domain-name> which specifies the canonical or primary
 *                 name for the owner.  The owner name is an alias.
 * 
 * CNAME RRs cause no additional section processing, but name servers may
 * choose to restart the query at the canonical name in certain cases.  See
 * the description of name server logic in [RFC-1034] for details.
 * 
 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
 */
public class CanonicalNameRecordEncoder extends ResourceRecordEncoder
{
    protected void putResourceRecordData( IoBuffer byteBuffer, ResourceRecord record )
    {
        String domainName = record.get( DnsAttribute.DOMAIN_NAME );

        putDomainName( byteBuffer, domainName );
    }
}