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.encoder;
22
23
24 import org.apache.directory.server.dns.messages.ResourceRecord;
25 import org.apache.directory.server.dns.store.DnsAttribute;
26 import org.apache.mina.core.buffer.IoBuffer;
27
28
29 /**
30 * 3.3.11. NS RDATA format
31 *
32 * +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
33 * / NSDNAME /
34 * / /
35 * +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
36 *
37 * where:
38 *
39 * NSDNAME A <domain-name> which specifies a host which should be
40 * authoritative for the specified class and domain.
41 *
42 * NS records cause both the usual additional section processing to locate
43 * a type A record, and, when used in a referral, a special search of the
44 * zone in which they reside for glue information.
45 *
46 * The NS RR states that the named host should be expected to have a zone
47 * starting at owner name of the specified class. Note that the class may
48 * not indicate the protocol family which should be used to communicate
49 * with the host, although it is typically a strong hint. For example,
50 * hosts which are name servers for either Internet (IN) or Hesiod (HS)
51 * class information are normally queried using IN class protocols.
52 *
53 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
54 */
55 public class NameServerRecordEncoder extends ResourceRecordEncoder
56 {
57 protected void putResourceRecordData( IoBuffer byteBuffer, ResourceRecord record )
58 {
59 String domainName = record.get( DnsAttribute.DOMAIN_NAME );
60
61 putDomainName( byteBuffer, domainName );
62 }
63 }