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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.MutableObjectClass;
27  import org.apache.directory.api.ldap.model.schema.ObjectClass;
28  
29  import antlr.RecognitionException;
30  import antlr.TokenStreamException;
31  
32  
33  /**
34   * A parser for RFC 4512 object class descriptons
35   * 
36   * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
37   */
38  public class ObjectClassDescriptionSchemaParser extends AbstractSchemaParser<ObjectClass>
39  {
40  
41      /**
42       * Creates a schema parser instance.
43       */
44      public ObjectClassDescriptionSchemaParser()
45      {
46          super( ObjectClass.class, I18n.ERR_04254, I18n.ERR_04255, I18n.ERR_04256 );
47      }
48  
49  
50      /**
51       * Parses a object class definition according to RFC 4512:
52       * 
53       * <pre>
54       * ObjectClassDescription = LPAREN WSP
55       *     numericoid                 ; object identifier
56       *     [ SP "NAME" SP qdescrs ]   ; short names (descriptors)
57       *     [ SP "DESC" SP qdstring ]  ; description
58       *     [ SP "OBSOLETE" ]          ; not active
59       *     [ SP "SUP" SP oids ]       ; superior object classes
60       *     [ SP kind ]                ; kind of class
61       *     [ SP "MUST" SP oids ]      ; attribute types
62       *     [ SP "MAY" SP oids ]       ; attribute types
63       *     extensions WSP RPAREN
64       *
65       * kind = "ABSTRACT" / "STRUCTURAL" / "AUXILIARY"
66       * 
67       * extensions = *( SP xstring SP qdstrings )
68       * xstring = "X" HYPHEN 1*( ALPHA / HYPHEN / USCORE )
69       * </pre>
70       * 
71       * @param objectClassDescription the object class description to be parsed
72       * @return the parsed ObjectClassDescription bean
73       * @throws ParseException if there are any recognition errors (bad syntax)
74       */
75      public ObjectClass parseObjectClassDescription( String objectClassDescription ) throws ParseException
76      {
77          return super.parse( objectClassDescription );
78      }
79  
80  
81      /**
82       * {@inheritDoc}
83       */
84      @Override
85      protected ObjectClass doParse() throws RecognitionException, TokenStreamException
86      {
87          return parser.objectClassDescription();
88      }
89  
90  }