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 */ 020package org.apache.directory.api.ldap.model.schema.syntaxCheckers; 021 022 023import org.apache.directory.api.ldap.model.constants.SchemaConstants; 024import org.apache.directory.api.ldap.model.csn.Csn; 025import org.apache.directory.api.ldap.model.csn.InvalidCSNException; 026import org.apache.directory.api.ldap.model.schema.SyntaxChecker; 027import org.slf4j.Logger; 028import org.slf4j.LoggerFactory; 029 030 031/** 032 * An CSN syntax checker. 033 * 034 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 035 */ 036@SuppressWarnings("serial") 037public class CsnSyntaxChecker extends SyntaxChecker 038{ 039 /** A logger for this class */ 040 private static final Logger LOG = LoggerFactory.getLogger( CsnSyntaxChecker.class ); 041 042 043 /** 044 * Creates a new instance of CsnSyntaxChecker. 045 */ 046 public CsnSyntaxChecker() 047 { 048 super( SchemaConstants.CSN_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 String csnStr = ( String ) value; 070 071 // It must be a valid CSN : try to create a new one. 072 try 073 { 074 boolean result = Csn.isValid( csnStr ); 075 076 if ( result ) 077 { 078 LOG.debug( "Syntax valid for '{}'", value ); 079 } 080 else 081 { 082 LOG.debug( "Syntax invalid for '{}'", value ); 083 } 084 085 return result; 086 } 087 catch ( InvalidCSNException icsne ) 088 { 089 LOG.debug( "Syntax invalid for '{}'", value ); 090 return false; 091 } 092 } 093}