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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  
21  package org.apache.directory.server.dns.messages;
22  
23  
24  import org.apache.directory.server.dns.util.EnumConverter;
25  import org.apache.directory.server.dns.util.ReverseEnumMap;
26  
27  
28  /**
29   * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
30   * @version $Rev: 547524 $, $Date: 2007-06-15 06:42:26 +0200 (Fr, 15 Jun 2007) $
31   */
32  public enum ResponseCode implements EnumConverter<Byte>
33  {
34      /** No error condition. */
35      NO_ERROR(0),
36  
37      /** The name server was unable to interpret the query. */
38      FORMAT_ERROR(1),
39  
40      /** The name server was unable to process this query due to a problem with the name server. */
41      SERVER_FAILURE(2),
42  
43      /** The domain name referenced in the query does not exist. */
44      NAME_ERROR(3),
45  
46      /** The name server does not support the requested kind of query. */
47      NOT_IMPLEMENTED(4),
48  
49      /** The name server refuses to perform the specified operation for policy reasons. */
50      REFUSED(5);
51  
52      private static ReverseEnumMap<Byte, ResponseCode> map = new ReverseEnumMap<Byte, ResponseCode>( ResponseCode.class );
53  
54      private final byte value;
55  
56  
57      private ResponseCode( int value )
58      {
59          this.value = ( byte ) value;
60      }
61  
62  
63      public Byte convert()
64      {
65          return this.value;
66      }
67  
68  
69      /**
70       * Converts an ordinal value into a {@link ResponseCode}.
71       *
72       * @param value
73       * @return The {@link ResponseCode}.
74       */
75      public static ResponseCode convert( byte value )
76      {
77          return map.get( value );
78      }
79  }