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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.api.ldap.model.schema.parsers;
21  
22  
23  import java.text.ParseException;
24  
25  import org.apache.directory.api.i18n.I18n;
26  import org.apache.directory.api.ldap.model.schema.ObjectClass;
27  
28  import antlr.RecognitionException;
29  import antlr.TokenStreamException;
30  
31  
32  /**
33   * A parser for RFC 4512 object class descriptons
34   * 
35   * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
36   */
37  public class ObjectClassDescriptionSchemaParser extends AbstractSchemaParser<ObjectClass>
38  {
39  
40      /**
41       * Creates a schema parser instance.
42       */
43      public ObjectClassDescriptionSchemaParser()
44      {
45          super( ObjectClass.class, I18n.ERR_04254, I18n.ERR_04255, I18n.ERR_04256 );
46      }
47  
48  
49      /**
50       * Parses a object class definition according to RFC 4512:
51       * 
52       * <pre>
53       * ObjectClassDescription = LPAREN WSP
54       *     numericoid                 ; object identifier
55       *     [ SP "NAME" SP qdescrs ]   ; short names (descriptors)
56       *     [ SP "DESC" SP qdstring ]  ; description
57       *     [ SP "OBSOLETE" ]          ; not active
58       *     [ SP "SUP" SP oids ]       ; superior object classes
59       *     [ SP kind ]                ; kind of class
60       *     [ SP "MUST" SP oids ]      ; attribute types
61       *     [ SP "MAY" SP oids ]       ; attribute types
62       *     extensions WSP RPAREN
63       *
64       * kind = "ABSTRACT" / "STRUCTURAL" / "AUXILIARY"
65       * 
66       * extensions = *( SP xstring SP qdstrings )
67       * xstring = "X" HYPHEN 1*( ALPHA / HYPHEN / USCORE )
68       * </pre>
69       * 
70       * @param objectClassDescription the object class description to be parsed
71       * @return the parsed ObjectClassDescription bean
72       * @throws ParseException if there are any recognition errors (bad syntax)
73       */
74      public ObjectClass parseObjectClassDescription( String objectClassDescription ) throws ParseException
75      {
76          return super.parse( objectClassDescription );
77      }
78  
79  
80      /**
81       * {@inheritDoc}
82       */
83      @Override
84      protected ObjectClass doParse() throws RecognitionException, TokenStreamException
85      {
86          return parser.objectClassDescription();
87      }
88  
89  }