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 */ 020package org.apache.directory.api.ldap.model.schema.normalizers; 021 022 023import java.io.IOException; 024 025import org.apache.directory.api.i18n.I18n; 026import org.apache.directory.api.ldap.model.entry.StringValue; 027import org.apache.directory.api.ldap.model.entry.Value; 028import org.apache.directory.api.ldap.model.exception.LdapException; 029import org.apache.directory.api.ldap.model.exception.LdapInvalidAttributeValueException; 030import org.apache.directory.api.ldap.model.message.ResultCodeEnum; 031import org.apache.directory.api.ldap.model.schema.Normalizer; 032import org.apache.directory.api.ldap.model.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 */ 043@SuppressWarnings("serial") 044public class DeepTrimToLowerNormalizer extends Normalizer 045{ 046 /** 047 * Creates a new instance of DeepTrimToLowerNormalizer. 048 * 049 * @param oid The MR OID to use with this Normalizer 050 */ 051 public DeepTrimToLowerNormalizer( String oid ) 052 { 053 super( oid ); 054 } 055 056 057 /** 058 * Creates a new instance of DeepTrimToLowerNormalizer where the OID is 059 * set after instantiation. 060 */ 061 public DeepTrimToLowerNormalizer() 062 { 063 } 064 065 066 /** 067 * {@inheritDoc} 068 */ 069 public Value<?> normalize( Value<?> value ) throws LdapException 070 { 071 if ( value == null ) 072 { 073 return null; 074 } 075 076 try 077 { 078 String normalized = PrepareString.normalize( value.getString(), 079 PrepareString.StringType.CASE_IGNORE ); 080 081 return new StringValue( normalized ); 082 } 083 catch ( IOException ioe ) 084 { 085 throw new LdapInvalidAttributeValueException( ResultCodeEnum.INVALID_ATTRIBUTE_SYNTAX, I18n.err( 086 I18n.ERR_04224, value ), ioe ); 087 } 088 } 089 090 091 /** 092 * {@inheritDoc} 093 */ 094 public String normalize( String value ) throws LdapException 095 { 096 if ( value == null ) 097 { 098 return null; 099 } 100 101 try 102 { 103 String normalized = PrepareString.normalize( value, 104 PrepareString.StringType.CASE_IGNORE ); 105 106 return normalized; 107 } 108 catch ( IOException ioe ) 109 { 110 throw new LdapInvalidAttributeValueException( ResultCodeEnum.INVALID_ATTRIBUTE_SYNTAX, I18n.err( 111 I18n.ERR_04224, value ), ioe ); 112 } 113 } 114}