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.schema.LdapComparator; 025import org.slf4j.Logger; 026import org.slf4j.LoggerFactory; 027 028 029/** 030 * A comparator for TelephoneNumber. 031 * 032 * The rules for matching are identical to those for caseIgnoreMatch, except that 033 * all space and "-" characters are skipped during the comparison. 034 * 035 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 036 */ 037public class TelephoneNumberComparator extends LdapComparator<String> 038{ 039 /** The serial version UID */ 040 private static final long serialVersionUID = 2L; 041 042 /** A logger for this class */ 043 private static final Logger LOG = LoggerFactory.getLogger( TelephoneNumberComparator.class ); 044 045 046 /** 047 * The TelephoneNumberComparator constructor. Its OID is the TelephoneNumberMatch matching 048 * rule OID. 049 * 050 * @param oid The Comparator's OID 051 */ 052 public TelephoneNumberComparator( String oid ) 053 { 054 super( oid ); 055 } 056 057 058 /** 059 * Remove all spaces and '-' from the telephone number 060 * 061 * @param telephoneNumber The telephoneNumber to strip 062 * @return teh stripped telephoneNumber 063 */ 064 private String strip( String telephoneNumber ) 065 { 066 char[] telephoneNumberArray = telephoneNumber.toCharArray(); 067 int pos = 0; 068 069 for ( char c : telephoneNumberArray ) 070 { 071 if ( ( c == ' ' ) || ( c == '-' ) ) 072 { 073 continue; 074 } 075 076 telephoneNumberArray[pos++] = c; 077 } 078 079 return new String( telephoneNumberArray, 0, pos ); 080 } 081 082 083 /** 084 * {@inheritDoc} 085 */ 086 public int compare( String telephoneNumber1, String telephoneNumber2 ) 087 { 088 if ( LOG.isDebugEnabled() ) 089 { 090 LOG.debug( I18n.msg( I18n.MSG_13750_COMPARING_TELEPHONE_NUMBER, telephoneNumber1, telephoneNumber2 ) ); 091 } 092 093 // ------------------------------------------------------------------- 094 // Handle some basis cases 095 // ------------------------------------------------------------------- 096 if ( telephoneNumber1 == null ) 097 { 098 return ( telephoneNumber2 == null ) ? 0 : -1; 099 } 100 101 if ( telephoneNumber2 == null ) 102 { 103 return 1; 104 } 105 106 // ------------------------------------------------------------------- 107 // Remove all spaces and '-' 108 // ------------------------------------------------------------------- 109 String strippedTelephoneNumber1 = strip( telephoneNumber1 ); 110 String strippedTelephoneNumber2 = strip( telephoneNumber2 ); 111 112 return strippedTelephoneNumber1.compareToIgnoreCase( strippedTelephoneNumber2 ); 113 } 114}