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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.normalizers;
21  
22  
23  import org.apache.directory.api.ldap.model.constants.SchemaConstants;
24  import org.apache.directory.api.ldap.model.entry.StringValue;
25  import org.apache.directory.api.ldap.model.entry.Value;
26  import org.apache.directory.api.ldap.model.exception.LdapException;
27  import org.apache.directory.api.ldap.model.schema.Normalizer;
28  import org.apache.directory.api.util.Strings;
29  
30  
31  /**
32   * A normalizer for the objectIdentifierMatch matching rule.
33   * 
34   * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
35   */
36  @SuppressWarnings("serial")
37  public class ObjectIdentifierNormalizer extends Normalizer
38  {
39      /**
40       * Creates a new instance of ObjectIdentifierNormalizer.
41       */
42      public ObjectIdentifierNormalizer()
43      {
44          super( SchemaConstants.OBJECT_IDENTIFIER_MATCH_MR_OID );
45      }
46  
47  
48      /**
49       * {@inheritDoc}
50       */
51      public Value<?> normalize( Value<?> value ) throws LdapException
52      {
53          if ( value == null )
54          {
55              return null;
56          }
57  
58          String str = value.getString().trim();
59  
60          if ( str.length() == 0 )
61          {
62              return new StringValue( "" );
63          }
64          else if ( Character.isDigit( str.charAt( 0 ) ) )
65          {
66              // We do this test to avoid a lowerCasing which cost time
67              return new StringValue( str );
68          }
69          else
70          {
71              return new StringValue( Strings.toLowerCase( str ) );
72          }
73      }
74  
75  
76      /**
77       * {@inheritDoc}
78       */
79      public String normalize( String value ) throws LdapException
80      {
81          if ( value == null )
82          {
83              return null;
84          }
85  
86          String str = value.trim();
87  
88          if ( str.length() == 0 )
89          {
90              return "";
91          }
92          else if ( Character.isDigit( str.charAt( 0 ) ) )
93          {
94              // We do this test to avoid a lowerCasing which cost time
95              return str;
96          }
97          else
98          {
99              return Strings.toLowerCase( str );
100         }
101     }
102 }