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.shared.ldap.model.schema.normalizers; 021 022 023import org.apache.directory.shared.ldap.model.entry.Value; 024import org.apache.directory.shared.ldap.model.exception.LdapException; 025import org.apache.directory.shared.ldap.model.schema.Normalizer; 026import org.apache.directory.shared.ldap.model.schema.SchemaManager; 027import org.apache.directory.shared.ldap.model.schema.registries.Registries; 028 029 030/** 031 * Caches previously normalized values. 032 * 033 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 034 */ 035@SuppressWarnings("serial") 036public class CachingNormalizer extends Normalizer 037{ 038 /** Cache maximum size default */ 039 public static final int CACHE_MAX = 250; 040 041 /** The underlying decorated Normalizer */ 042 protected final Normalizer normalizer; 043 044 045 // ------------------------------------------------------------------------ 046 // C O N S T R U C T O R S 047 // ------------------------------------------------------------------------ 048 049 /** 050 * Creates a CachingNormalizer that decorates another normalizer using a 051 * default cache size. This Normalizer delegates 052 * 053 * @param normalizer the underlying Normalizer being decorated 054 */ 055 public CachingNormalizer( Normalizer normalizer ) 056 { 057 this( normalizer, CACHE_MAX ); 058 } 059 060 061 /** 062 * Creates a CachingNormalizer that decorates another normalizer using a 063 * specified cache size. 064 * 065 * @param normalizer the underlying Normalizer being decorated 066 * @param cacheSz the maximum size of the name cache 067 */ 068 public CachingNormalizer( Normalizer normalizer, int cacheSz ) 069 { 070 super( normalizer.getOid() ); 071 this.normalizer = normalizer; 072 } 073 074 075 /** 076 * Overrides default behavior by returning the OID of the wrapped 077 * Normalizer. 078 */ 079 @Override 080 public String getOid() 081 { 082 return normalizer.getOid(); 083 } 084 085 086 /** 087 * Overrides default behavior by setting the OID of the wrapped Normalizer. 088 * 089 * @param oid the object identifier to set 090 */ 091 @Override 092 public void setOid( String oid ) 093 { 094 super.setOid( oid ); 095 normalizer.setOid( oid ); 096 } 097 098 099 /** 100 * {@inheritDoc} 101 */ 102 public Value<?> normalize( Value<?> value ) throws LdapException 103 { 104 if ( value == null ) 105 { 106 return null; 107 } 108 109 Value<?> normalized = normalizer.normalize( value ); 110 111 return normalized; 112 } 113 114 115 /** 116 * {@inheritDoc} 117 */ 118 public String normalize( String value ) throws LdapException 119 { 120 if ( value == null ) 121 { 122 return null; 123 } 124 125 String normalized = normalizer.normalize( value ); 126 127 return normalized; 128 } 129 130 131 /** 132 * {@inheritDoc} 133 */ 134 public void setRegistries( Registries registries ) 135 { 136 normalizer.setRegistries( registries ); 137 } 138 139 140 /** 141 * Sets the SchemaManager 142 * 143 * @param schemaManager The SchemaManager 144 */ 145 public void setSchemaManager( SchemaManager schemaManager ) 146 { 147 normalizer.setSchemaManager( schemaManager ); 148 } 149}