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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  package org.apache.directory.server.kerberos.shared.io.encoder;
21  
22  
23  import org.apache.directory.server.kerberos.shared.messages.value.HostAddress;
24  import org.apache.directory.server.kerberos.shared.messages.value.HostAddresses;
25  import org.apache.directory.shared.asn1.der.DERInteger;
26  import org.apache.directory.shared.asn1.der.DEROctetString;
27  import org.apache.directory.shared.asn1.der.DERSequence;
28  import org.apache.directory.shared.asn1.der.DERTaggedObject;
29  
30  
31  /**
32   * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
33   * @version $Rev: 587242 $, $Date: 2007-10-22 22:42:40 +0200 (Mo, 22 Okt 2007) $
34   */
35  public class HostAddressesEncoder
36  {
37      /**
38       * HostAddresses ::=   SEQUENCE OF SEQUENCE {
39       *                     addr-type[0]             INTEGER,
40       *                     address[1]               OCTET STRING
41       * }
42       */
43      protected static DERSequence encodeSequence( HostAddresses hosts )
44      {
45          HostAddress[] addresses = hosts.getAddresses();
46          DERSequence sequence = new DERSequence();
47  
48          for ( int ii = 0; ii < addresses.length; ii++ )
49          {
50              sequence.add( encode( addresses[ii] ) );
51          }
52  
53          return sequence;
54      }
55  
56  
57      /**
58       *  HostAddress ::=     SEQUENCE  {
59       *                     addr-type[0]             INTEGER,
60       *                     address[1]               OCTET STRING
61       * }
62       */
63      protected static DERSequence encode( HostAddress host )
64      {
65          DERSequence sequence = new DERSequence();
66  
67          sequence.add( new DERTaggedObject( 0, DERInteger.valueOf( host.getAddrType().getOrdinal() ) ) );
68          sequence.add( new DERTaggedObject( 1, new DEROctetString( host.getAddress() ) ) );
69  
70          return sequence;
71      }
72  }