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 java.io.IOException;
024
025 import org.apache.directory.shared.i18n.I18n;
026 import org.apache.directory.shared.ldap.entry.StringValue;
027 import org.apache.directory.shared.ldap.entry.Value;
028 import org.apache.directory.shared.ldap.exception.LdapException;
029 import org.apache.directory.shared.ldap.exception.LdapInvalidAttributeValueException;
030 import org.apache.directory.shared.ldap.message.ResultCodeEnum;
031 import org.apache.directory.shared.ldap.schema.Normalizer;
032 import org.apache.directory.shared.ldap.schema.PrepareString;
033
034
035 /**
036 * Normalizer which trims down whitespace replacing multiple whitespace
037 * characters on the edges and within the string with a single space character
038 * thereby preserving tokenization order - while doing all this in the same pass
039 * it lower cases all characters.
040 *
041 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
042 * @version $Rev: 928945 $
043 */
044 public class DeepTrimToLowerNormalizer extends Normalizer
045 {
046 /** The serial UID */
047 public static final long serialVersionUID = 1L;
048
049 /**
050 * Creates a new instance of DeepTrimToLowerNormalizer.
051 *
052 * @param oid The MR OID to use with this Normalizer
053 */
054 public DeepTrimToLowerNormalizer( String oid )
055 {
056 super( oid );
057 }
058
059
060 /**
061 * Creates a new instance of DeepTrimToLowerNormalizer where the OID is
062 * set after instantiation.
063 */
064 public DeepTrimToLowerNormalizer()
065 {
066 }
067
068
069 /**
070 * {@inheritDoc}
071 */
072 public Value<?> normalize( Value<?> value ) throws LdapException
073 {
074 if ( value == null )
075 {
076 return null;
077 }
078
079 try
080 {
081 String normalized = PrepareString.normalize( value.getString(),
082 PrepareString.StringType.CASE_IGNORE );
083
084 return new StringValue( normalized );
085 }
086 catch ( IOException ioe )
087 {
088 throw new LdapInvalidAttributeValueException( ResultCodeEnum.INVALID_ATTRIBUTE_SYNTAX, I18n.err( I18n.ERR_04224, value ) );
089 }
090 }
091
092
093 /**
094 * {@inheritDoc}
095 */
096 public String normalize( String value ) throws LdapException
097 {
098 if ( value == null )
099 {
100 return null;
101 }
102
103 try
104 {
105 String normalized = PrepareString.normalize( value,
106 PrepareString.StringType.CASE_IGNORE );
107
108 return normalized;
109 }
110 catch ( IOException ioe )
111 {
112 throw new LdapInvalidAttributeValueException( ResultCodeEnum.INVALID_ATTRIBUTE_SYNTAX, I18n.err( I18n.ERR_04224, value ) );
113 }
114 }
115 }