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 * https://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.comparators; 021 022 023import org.apache.directory.api.i18n.I18n; 024import org.apache.directory.api.ldap.model.exception.LdapException; 025import org.apache.directory.api.ldap.model.schema.LdapComparator; 026import org.apache.directory.api.ldap.model.schema.normalizers.DeepTrimToLowerNormalizer; 027import org.slf4j.Logger; 028import org.slf4j.LoggerFactory; 029 030 031/** 032 * A comparator that uses the DeepTrimToLowerNormalizer before comparing two values 033 * 034 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 035 */ 036public class DeepTrimToLowerComparator extends LdapComparator<String> 037{ 038 /** The serial version UID */ 039 private static final long serialVersionUID = 2L; 040 041 /** A logger for this class */ 042 private static final Logger LOG = LoggerFactory.getLogger( DeepTrimToLowerComparator.class ); 043 044 045 /** 046 * The NormalizingComparator constructor. Its OID is the matching rule OID. 047 * 048 * @param oid The Comparator's OID 049 */ 050 public DeepTrimToLowerComparator( String oid ) 051 { 052 super( oid ); 053 normalizer = new DeepTrimToLowerNormalizer(); 054 } 055 056 057 /** 058 * {@inheritDoc} 059 */ 060 public int compare( String key, String value ) 061 { 062 String normalizedValue; 063 064 try 065 { 066 normalizedValue = normalizer.normalize( value ); 067 } 068 catch ( LdapException e ) 069 { 070 if ( LOG.isWarnEnabled() ) 071 { 072 LOG.warn( I18n.msg( I18n.MSG_13700_FAILED_TO_NORMALIZE, value ), e ); 073 } 074 075 normalizedValue = value; 076 } 077 078 return key.compareTo( normalizedValue ); 079 } 080}