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.syntaxCheckers; 021 022 023import java.util.UUID; 024 025import org.apache.directory.api.i18n.I18n; 026import org.apache.directory.api.ldap.model.constants.SchemaConstants; 027import org.apache.directory.api.ldap.model.schema.SyntaxChecker; 028import org.apache.directory.api.util.Strings; 029 030 031/** 032 * An UUID syntax checker. 033 * <pre> 034 * UUID ::= OCTET STRING (SIZE(16)) -- constrained to an UUID [RFC4122] 035 * </pre> 036 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 037 */ 038@SuppressWarnings("serial") 039public final class UuidSyntaxChecker extends SyntaxChecker 040{ 041 /** 042 * A static instance of UuidSyntaxChecker 043 */ 044 public static final UuidSyntaxChecker INSTANCE = new UuidSyntaxChecker( SchemaConstants.UUID_SYNTAX ); 045 046 /** 047 * A static Builder for this class 048 */ 049 public static final class Builder extends SCBuilder<UuidSyntaxChecker> 050 { 051 /** 052 * The Builder constructor 053 */ 054 private Builder() 055 { 056 super( SchemaConstants.UUID_SYNTAX ); 057 } 058 059 060 /** 061 * Create a new instance of UuidSyntaxChecker 062 * @return A new instance of UuidSyntaxChecker 063 */ 064 @Override 065 public UuidSyntaxChecker build() 066 { 067 return new UuidSyntaxChecker( oid ); 068 } 069 } 070 071 072 /** 073 * Creates a new instance of UUIDSyntaxChecker. 074 * 075 * @param oid The OID to use for this SyntaxChecker 076 */ 077 private UuidSyntaxChecker( String oid ) 078 { 079 super( oid ); 080 } 081 082 083 /** 084 * @return An instance of the Builder for this class 085 */ 086 public static Builder builder() 087 { 088 return new Builder(); 089 } 090 091 092 /** 093 * {@inheritDoc} 094 */ 095 @Override 096 public boolean isValidSyntax( Object value ) 097 { 098 if ( value == null ) 099 { 100 if ( LOG.isDebugEnabled() ) 101 { 102 LOG.debug( I18n.err( I18n.ERR_13210_SYNTAX_INVALID, "null" ) ); 103 } 104 105 return false; 106 } 107 108 if ( value instanceof UUID ) 109 { 110 return true; 111 } 112 113 if ( !( value instanceof String ) ) 114 { 115 if ( LOG.isDebugEnabled() ) 116 { 117 LOG.debug( I18n.err( I18n.ERR_13210_SYNTAX_INVALID, value ) ); 118 } 119 120 return false; 121 } 122 123 return Strings.isValidUuid( ( String ) value ); 124 } 125}