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 java.net.InetAddress;
025 import java.net.UnknownHostException;
026
027 import org.apache.directory.server.dns.messages.ResourceRecord;
028 import org.apache.directory.server.dns.store.DnsAttribute;
029 import org.apache.mina.core.buffer.IoBuffer;
030
031
032 /**
033 * 3.4.1. A RDATA format
034 *
035 * +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
036 * | ADDRESS |
037 * +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
038 *
039 * where:
040 *
041 * ADDRESS A 32 bit Internet address.
042 *
043 * Hosts that have multiple Internet addresses will have multiple A
044 * records.
045 *
046 * A records cause no additional section processing. The RDATA section of
047 * an A line in a master file is an Internet address expressed as four
048 * decimal numbers separated by dots without any imbedded spaces (e.g.,
049 * "10.2.0.52" or "192.0.5.6").
050 *
051 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
052 * @version $Rev: 725712 $, $Date: 2008-12-11 17:32:04 +0200 (Thu, 11 Dec 2008) $
053 */
054 public class AddressRecordEncoder extends ResourceRecordEncoder
055 {
056 protected void putResourceRecordData( IoBuffer byteBuffer, ResourceRecord record )
057 {
058 String ipAddress = record.get( DnsAttribute.IP_ADDRESS );
059
060 try
061 {
062 byteBuffer.put( InetAddress.getByName( ipAddress ).getAddress() );
063 }
064 catch ( UnknownHostException uhe )
065 {
066 }
067 }
068 }