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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.MatchingRuleUse;
27  
28  import antlr.RecognitionException;
29  import antlr.TokenStreamException;
30  
31  
32  /**
33   * A parser for RFC 4512 matching rule use descriptions.
34   * 
35   * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
36   */
37  public class MatchingRuleUseDescriptionSchemaParser extends AbstractSchemaParser<MatchingRuleUse>
38  {
39  
40      /**
41       * Creates a schema parser instance.
42       */
43      public MatchingRuleUseDescriptionSchemaParser()
44      {
45          super( MatchingRuleUse.class, I18n.ERR_04245, I18n.ERR_04246, I18n.ERR_04247 );
46      }
47  
48  
49      /**
50       * Parses a matching rule use description according to RFC 4512:
51       * 
52       * <pre>
53       * MatchingRuleUseDescription = 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 "APPLIES" SP oids       ; attribute types
59       *    extensions WSP RPAREN      ; extensions
60       * 
61       * extensions = *( SP xstring SP qdstrings )
62       * xstring = "X" HYPHEN 1*( ALPHA / HYPHEN / USCORE ) 
63       * </pre>
64       * 
65       * @param matchingRuleUseDescription the matching rule use description to be parsed
66       * @return the parsed MatchingRuleUseDescription bean
67       * @throws ParseException if there are any recognition errors (bad syntax)
68       */
69      public MatchingRuleUse parseMatchingRuleUseDescription( String matchingRuleUseDescription ) throws ParseException
70      {
71          return super.parse( matchingRuleUseDescription );
72      }
73  
74  
75      /**
76       * {@inheritDoc}
77       */
78      @Override
79      protected MatchingRuleUse doParse() throws RecognitionException, TokenStreamException
80      {
81          return parser.matchingRuleUseDescription();
82      }
83  
84  }