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.schema.SyntaxChecker; 025import org.slf4j.Logger; 026import org.slf4j.LoggerFactory; 027 028 029/** 030 * An CSN SID syntax checker. 031 * 032 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 033 */ 034@SuppressWarnings("serial") 035public class CsnSidSyntaxChecker extends SyntaxChecker 036{ 037 /** A logger for this class */ 038 private static final Logger LOG = LoggerFactory.getLogger( CsnSidSyntaxChecker.class ); 039 040 041 /** 042 * Creates a new instance of CsnSyntaxChecker. 043 */ 044 public CsnSidSyntaxChecker() 045 { 046 super( SchemaConstants.CSN_SID_SYNTAX ); 047 } 048 049 050 /** 051 * {@inheritDoc} 052 */ 053 public boolean isValidSyntax( Object value ) 054 { 055 if ( value == null ) 056 { 057 LOG.debug( "Syntax invalid for 'null'" ); 058 return false; 059 } 060 061 if ( !( value instanceof String ) ) 062 { 063 LOG.debug( "Syntax invalid for '{}'", value ); 064 return false; 065 } 066 067 String sidStr = ( String ) value; 068 069 if ( sidStr.length() > 3 ) 070 { 071 LOG.debug( "Syntax invalid for '{}'", value ); 072 return false; 073 } 074 075 // The SID must be an hexadecimal number between 0x00 and 0xFFF 076 077 try 078 { 079 int sid = Integer.parseInt( sidStr, 16 ); 080 081 if ( ( sid < 0 ) || ( sid > 0x0fff ) ) 082 { 083 LOG.debug( "Syntax invalid for '{}'", value ); 084 return false; 085 } 086 } 087 catch ( NumberFormatException nfe ) 088 { 089 LOG.debug( "Syntax invalid for '{}'", value ); 090 return false; 091 } 092 093 LOG.debug( "Syntax valid for '{}'", value ); 094 return true; 095 } 096}