1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 *
19 */
20
21 package org.apache.directory.server.dns.io.decoder;
22
23
24 import java.io.IOException;
25 import java.net.InetAddress;
26 import java.util.HashMap;
27 import java.util.Map;
28
29 import org.apache.directory.server.dns.store.DnsAttribute;
30 import org.apache.mina.common.ByteBuffer;
31
32
33 /**
34 * A decoder for AAAA records. AAAA records are encoded as per RFC-3596:
35 *
36 * <pre>
37 * 2.2. AAAA data format
38 *
39 * A 128 bit IPv6 address is encoded in the data portion of an AAAA
40 * resource record in network byte order (high-order byte first).
41 * </pre>
42 *
43 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
44 * @version $Rev$, $Date$
45 */
46 public class IPv6RecordDecoder implements RecordDecoder
47 {
48
49 public Map<String, Object> decode( ByteBuffer byteBuffer, short length ) throws IOException
50 {
51 Map<String, Object> attributes = new HashMap<String, Object>();
52 byte[] addressBytes = new byte[length];
53 byteBuffer.get( addressBytes );
54 attributes.put( DnsAttribute.IP_ADDRESS, InetAddress.getByAddress( addressBytes ) );
55 return attributes;
56 }
57
58 }