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 org.apache.directory.api.i18n.I18n; 024import org.apache.directory.api.ldap.model.constants.SchemaConstants; 025import org.apache.directory.api.ldap.model.entry.StringValue; 026import org.apache.directory.api.ldap.model.entry.Value; 027import org.apache.directory.api.ldap.model.exception.LdapException; 028import org.apache.directory.api.ldap.model.name.Dn; 029import org.apache.directory.api.ldap.model.schema.Normalizer; 030import org.apache.directory.api.ldap.model.schema.SchemaManager; 031import org.apache.directory.api.util.Strings; 032 033 034/** 035 * A noirmalizer for UniqueMember 036 * 037 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 038 */ 039@SuppressWarnings("serial") 040public class UniqueMemberNormalizer extends Normalizer 041{ 042 /** A reference to the schema manager used to normalize the Dn */ 043 private SchemaManager schemaManager; 044 045 046 public UniqueMemberNormalizer() 047 { 048 super( SchemaConstants.UNIQUE_MEMBER_MATCH_MR_OID ); 049 } 050 051 052 public Value<?> normalize( Value<?> value ) throws LdapException 053 { 054 String nameAndUid = value.getString(); 055 056 if ( nameAndUid.length() == 0 ) 057 { 058 return null; 059 } 060 061 // Let's see if we have an UID part 062 int sharpPos = nameAndUid.lastIndexOf( '#' ); 063 064 if ( sharpPos != -1 ) 065 { 066 // Now, check that we don't have another '#' 067 if ( nameAndUid.indexOf( '#' ) != sharpPos ) 068 { 069 // Yes, we have one : this is not allowed, it should have been 070 // escaped. 071 return null; 072 } 073 074 // This is an UID if the '#' is immediately 075 // followed by a BitString, except if the '#' is 076 // on the last position 077 String uid = nameAndUid.substring( sharpPos + 1 ); 078 079 if ( sharpPos > 0 ) 080 { 081 Dn dn = new Dn( schemaManager, nameAndUid.substring( 0, sharpPos ) ); 082 083 return new StringValue( dn.getNormName() + '#' + uid ); 084 } 085 else 086 { 087 throw new IllegalStateException( I18n.err( I18n.ERR_04226, value.getClass() ) ); 088 } 089 } 090 else 091 { 092 // No UID, the strValue is a Dn 093 // Return the normalized Dn 094 return new StringValue( new Dn( nameAndUid ).getNormName() ); 095 } 096 } 097 098 099 public String normalize( String value ) throws LdapException 100 { 101 if ( Strings.isEmpty( value ) ) 102 { 103 return null; 104 } 105 106 // Let's see if we have an UID part 107 int sharpPos = value.lastIndexOf( '#' ); 108 109 if ( sharpPos != -1 ) 110 { 111 // Now, check that we don't have another '#' 112 if ( value.indexOf( '#' ) != sharpPos ) 113 { 114 // Yes, we have one : this is not allowed, it should have been 115 // escaped. 116 return null; 117 } 118 119 // This is an UID if the '#' is immediatly 120 // followed by a BitString, except if the '#' is 121 // on the last position 122 String uid = value.substring( sharpPos + 1 ); 123 124 if ( sharpPos > 0 ) 125 { 126 Dn dn = new Dn( schemaManager, value.substring( 0, sharpPos ) ); 127 128 return dn.getNormName() + '#' + uid; 129 } 130 else 131 { 132 throw new IllegalStateException( I18n.err( I18n.ERR_04226, value.getClass() ) ); 133 } 134 } 135 else 136 { 137 // No UID, the strValue is a Dn 138 // Return the normalized Dn 139 return new Dn( schemaManager, value ).getNormName(); 140 } 141 } 142 143 144 /** 145 * {@inheritDoc} 146 */ 147 public void setSchemaManager( SchemaManager schemaManager ) 148 { 149 this.schemaManager = schemaManager; 150 } 151}