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.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.DeepTrimNormalizer; 027import org.slf4j.Logger; 028import org.slf4j.LoggerFactory; 029 030 031/** 032 * A comparator that uses the DeepTrimNormalizer before comparing two values 033 * 034 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 035 */ 036public class DeepTrimComparator 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( DeepTrimComparator.class ); 043 044 /** 045 * The NormalizingComparator constructor. Its OID is the matching rule OID. 046 * 047 * @param oid The Comparator's OID 048 */ 049 public DeepTrimComparator( String oid ) 050 { 051 super( oid ); 052 normalizer = new DeepTrimNormalizer(); 053 } 054 055 056 /** 057 * {@inheritDoc} 058 */ 059 public int compare( String o1, String o2 ) 060 { 061 String n1 = o1; 062 String n2; 063 064 try 065 { 066 n1 = normalizer.normalize( o1 ); 067 } 068 catch ( LdapException e ) 069 { 070 if ( LOG.isWarnEnabled() ) 071 { 072 LOG.warn( I18n.msg( I18n.MSG_13700_FAILED_TO_NORMALIZE, o1 ), e ); 073 } 074 075 n1 = o1; 076 } 077 078 try 079 { 080 n2 = normalizer.normalize( o2 ); 081 } 082 catch ( LdapException e ) 083 { 084 if ( LOG.isWarnEnabled() ) 085 { 086 LOG.warn( I18n.msg( I18n.MSG_13700_FAILED_TO_NORMALIZE, o2 ), e ); 087 } 088 089 n2 = o2; 090 } 091 092 return n1.compareTo( n2 ); 093 } 094}