001    /*
002     *  Licensed to the Apache Software Foundation (ASF) under one
003     *  or more contributor license agreements.  See the NOTICE file
004     *  distributed with this work for additional information
005     *  regarding copyright ownership.  The ASF licenses this file
006     *  to you under the Apache License, Version 2.0 (the
007     *  "License"); you may not use this file except in compliance
008     *  with the License.  You may obtain a copy of the License at
009     *  
010     *    http://www.apache.org/licenses/LICENSE-2.0
011     *  
012     *  Unless required by applicable law or agreed to in writing,
013     *  software distributed under the License is distributed on an
014     *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015     *  KIND, either express or implied.  See the License for the
016     *  specific language governing permissions and limitations
017     *  under the License. 
018     *  
019     */
020    package org.apache.directory.shared.ldap.schema.normalizers;
021    
022    
023    import org.apache.directory.shared.ldap.constants.SchemaConstants;
024    import org.apache.directory.shared.ldap.entry.StringValue;
025    import org.apache.directory.shared.ldap.entry.Value;
026    import org.apache.directory.shared.ldap.exception.LdapException;
027    import org.apache.directory.shared.ldap.schema.Normalizer;
028    
029    
030    /**
031     * A normalizer for the objectIdentifierMatch matching rule.
032     * 
033     * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
034     * @version $Rev: 928945 $
035     */
036    public class ObjectIdentifierNormalizer extends Normalizer
037    {
038        /** The serial UID */
039        public static final long serialVersionUID = 1L;
040    
041        /**
042         * Creates a new instance of ObjectIdentifierNormalizer.
043         */
044        public ObjectIdentifierNormalizer()
045        {
046            super( SchemaConstants.OBJECT_IDENTIFIER_MATCH_MR_OID );
047        }
048    
049    
050        /**
051         * {@inheritDoc}
052         */
053        public Value<?> normalize( Value<?> value ) throws LdapException
054        {
055            if ( value == null )
056            {
057                return null;
058            }
059    
060            String str = value.getString().trim();
061    
062            if ( str.length() == 0 )
063            {
064                return new StringValue( "" );
065            }
066            else if ( Character.isDigit( str.charAt( 0 ) ) )
067            {
068                // We do this test to avoid a lowerCasing which cost time
069                return new StringValue( str );
070            }
071            else
072            {
073                return new StringValue( str.toLowerCase() );
074            }
075        }
076        
077        
078        /**
079         * {@inheritDoc}
080         */
081        public String normalize( String value ) throws LdapException
082        {
083            if ( value == null )
084            {
085                return null;
086            }
087    
088            String str = value.trim();
089    
090            if ( str.length() == 0 )
091            {
092                return "";
093            }
094            else if ( Character.isDigit( str.charAt( 0 ) ) )
095            {
096                // We do this test to avoid a lowerCasing which cost time
097                return str;
098            }
099            else
100            {
101                return str.toLowerCase();
102            }
103        }
104    }