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.syntaxCheckers; 021 022 023import org.apache.directory.shared.ldap.model.constants.SchemaConstants; 024import org.apache.directory.shared.ldap.model.schema.SyntaxChecker; 025import org.apache.directory.shared.util.Strings; 026import org.slf4j.Logger; 027import org.slf4j.LoggerFactory; 028 029 030/** 031 * An UUID syntax checker. 032 * 033 * UUID ::= OCTET STRING (SIZE(16)) -- constrained to an UUID [RFC4122] 034 * 035 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 036 */ 037@SuppressWarnings("serial") 038public class UuidSyntaxChecker extends SyntaxChecker 039{ 040 /** A logger for this class */ 041 private static final Logger LOG = LoggerFactory.getLogger( UuidSyntaxChecker.class ); 042 043 /** 044 * Creates a new instance of UUIDSyntaxChecker. 045 */ 046 public UuidSyntaxChecker() 047 { 048 super( SchemaConstants.UUID_SYNTAX ); 049 } 050 051 052 /** 053 * {@inheritDoc} 054 */ 055 public boolean isValidSyntax( Object value ) 056 { 057 if ( value == null ) 058 { 059 LOG.debug( "Syntax invalid for 'null'" ); 060 return false; 061 } 062 063 if ( ! ( value instanceof String ) ) 064 { 065 LOG.debug( "Syntax invalid for '{}'", value ); 066 return false; 067 } 068 069 return Strings.isValidUuid((String) value); 070 } 071}