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, eCopyOfUuidSyntaxCheckerither express or implied. See the License for the 016 * specific language governing permissions and limitations 017 * under the License. 018 * 019 */ 020 package org.apache.directory.shared.ldap.schema.syntaxCheckers; 021 022 import org.apache.directory.shared.ldap.constants.SchemaConstants; 023 import org.apache.directory.shared.ldap.csn.Csn; 024 import org.apache.directory.shared.ldap.csn.InvalidCSNException; 025 import org.apache.directory.shared.ldap.schema.SyntaxChecker; 026 import org.slf4j.Logger; 027 import org.slf4j.LoggerFactory; 028 029 030 /** 031 * An CSN syntax checker. 032 * 033 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 034 * @version $Rev: 736240 $ 035 */ 036 public class CsnSyntaxChecker extends SyntaxChecker 037 { 038 /** A logger for this class */ 039 private static final Logger LOG = LoggerFactory.getLogger( CsnSyntaxChecker.class ); 040 041 /** The serialVersionUID */ 042 private static final long serialVersionUID = 1L; 043 044 /** 045 * Creates a new instance of CsnSyntaxChecker. 046 */ 047 public CsnSyntaxChecker() 048 { 049 super( SchemaConstants.CSN_SYNTAX ); 050 } 051 052 053 /** 054 * {@inheritDoc} 055 */ 056 public boolean isValidSyntax( Object value ) 057 { 058 if ( value == null ) 059 { 060 LOG.debug( "Syntax invalid for '{}'", value ); 061 return false; 062 } 063 064 if ( ! ( value instanceof String ) ) 065 { 066 LOG.debug( "Syntax invalid for '{}'", value ); 067 return false; 068 } 069 070 String csnStr = (String)value; 071 072 // It must be a valid CSN : try to create a new one. 073 try 074 { 075 boolean result = Csn.isValid( csnStr ); 076 077 if ( result ) 078 { 079 LOG.debug( "Syntax valid for '{}'", value ); 080 } 081 else 082 { 083 LOG.debug( "Syntax invalid for '{}'", value ); 084 } 085 086 return result; 087 } 088 catch ( InvalidCSNException icsne ) 089 { 090 LOG.debug( "Syntax invalid for '{}'", value ); 091 return false; 092 } 093 } 094 }