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 }