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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.LdapSyntax;
27  
28  import antlr.RecognitionException;
29  import antlr.TokenStreamException;
30  
31  
32  /**
33   * A parser for RFC 4512 LDAP syntx descriptions.
34   * 
35   * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
36   */
37  public class LdapSyntaxDescriptionSchemaParser extends AbstractSchemaParser<LdapSyntax>
38  {
39  
40      /**
41       * Creates a schema parser instance.
42       */
43      public LdapSyntaxDescriptionSchemaParser()
44      {
45          super( LdapSyntax.class, I18n.ERR_04239, I18n.ERR_04240, I18n.ERR_04241 );
46      }
47  
48  
49      /**
50       * Parses a LDAP syntax description according to RFC 4512:
51       * 
52       * <pre>
53       * SyntaxDescription = LPAREN WSP
54       *    numericoid                 ; object identifier
55       *    [ SP "DESC" SP qdstring ]  ; description
56       *    extensions WSP RPAREN      ; extensions
57       * </pre>
58       * 
59       * @param ldapSyntaxDescription the LDAP syntax description to be parsed
60       * @return the parsed LdapSyntax bean
61       * @throws ParseException if there are any recognition errors (bad syntax)
62       */
63      public LdapSyntax parseLdapSyntaxDescription( String ldapSyntaxDescription ) throws ParseException
64      {
65          return super.parse( ldapSyntaxDescription );
66      }
67  
68  
69      /**
70       * {@inheritDoc}
71       */
72      @Override
73      protected LdapSyntax doParse() throws RecognitionException, TokenStreamException
74      {
75          return parser.ldapSyntaxDescription();
76      }
77  
78  }