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.api.ldap.model.schema.syntaxCheckers; 021 022 023import org.apache.directory.api.ldap.model.constants.SchemaConstants; 024import org.apache.directory.api.ldap.model.schema.SyntaxChecker; 025import org.apache.directory.api.util.Strings; 026import org.slf4j.Logger; 027import org.slf4j.LoggerFactory; 028 029 030/** 031 * A SyntaxChecker which verifies that a value is a IA5 String according to RFC 4517. 032 * 033 * From RFC 4517 : 034 * IA5String = *(%x00-7F) 035 * 036 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 037 */ 038@SuppressWarnings("serial") 039public class Ia5StringSyntaxChecker extends SyntaxChecker 040{ 041 /** A logger for this class */ 042 private static final Logger LOG = LoggerFactory.getLogger( Ia5StringSyntaxChecker.class ); 043 044 045 /** 046 * Creates a new instance of Ia5StringSyntaxChecker. 047 */ 048 public Ia5StringSyntaxChecker() 049 { 050 super( SchemaConstants.IA5_STRING_SYNTAX ); 051 } 052 053 054 /** 055 * {@inheritDoc} 056 */ 057 public boolean isValidSyntax( Object value ) 058 { 059 String strValue = null; 060 061 if ( value == null ) 062 { 063 LOG.debug( "Syntax invalid for 'null'" ); 064 return true; 065 } 066 067 if ( value instanceof String ) 068 { 069 strValue = ( String ) value; 070 } 071 else if ( value instanceof byte[] ) 072 { 073 strValue = Strings.utf8ToString( ( byte[] ) value ); 074 } 075 else 076 { 077 strValue = value.toString(); 078 } 079 080 boolean result = Strings.isIA5String( strValue ); 081 082 if ( result ) 083 { 084 LOG.debug( "Syntax valid for '{}'", value ); 085 } 086 else 087 { 088 LOG.debug( "Syntax invalid for '{}'", value ); 089 } 090 091 return result; 092 } 093}