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.schema.LdapComparator; 025import org.slf4j.Logger; 026import org.slf4j.LoggerFactory; 027 028 029/** 030 * A class for the BooleanComparator matchingRule (RFC 4517, par. 4.2.2) 031 * 032 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 033 */ 034public class BooleanComparator extends LdapComparator<String> 035{ 036 /** The serial version UID */ 037 private static final long serialVersionUID = 2L; 038 039 /** A logger for this class */ 040 private static final Logger LOG = LoggerFactory.getLogger( BooleanComparator.class ); 041 042 043 /** 044 * The BooleanComparator constructor. Its OID is the BooleanMatch matching 045 * rule OID. 046 * 047 * @param oid The Comparator's OID 048 */ 049 public BooleanComparator( String oid ) 050 { 051 super( oid ); 052 } 053 054 055 /** 056 * {@inheritDoc} 057 */ 058 public int compare( String b1, String b2 ) 059 { 060 if ( LOG.isDebugEnabled() ) 061 { 062 LOG.debug( I18n.msg( I18n.MSG_13752_COMPARING_BOOLEAN, b1, b2 ) ); 063 } 064 065 // First, shortcut the process by comparing 066 // references. If they are equals, then o1 and o2 067 // reference the same object 068 if ( b1 == b2 ) 069 { 070 return 0; 071 } 072 073 // Then, deal with one of o1 or o2 being null 074 // Both can't be null, because then they would 075 // have been catched by the previous test 076 if ( ( b1 == null ) || ( b2 == null ) ) 077 { 078 return b1 == null ? -1 : 1; 079 } 080 081 // The boolean should have been stored as 'TRUE' or 'FALSE' 082 // into the server, and the compare method will be called 083 // with normalized booleans, so no need to upper case them. 084 // We don't need to check the assertion value, because we 085 // are dealing with booleans. 086 boolean boolean1 = Boolean.parseBoolean( b1 ); 087 boolean boolean2 = Boolean.parseBoolean( b2 ); 088 089 if ( boolean1 == boolean2 ) 090 { 091 return 0; 092 } 093 094 return boolean1 ? 1 : -1; 095 } 096}