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.shared.ldap.model.schema.syntaxCheckers; 021 022import org.apache.directory.shared.ldap.model.constants.SchemaConstants; 023import org.apache.directory.shared.ldap.model.schema.SyntaxChecker; 024import org.slf4j.Logger; 025import org.slf4j.LoggerFactory; 026 027 028/** 029 * An CSN SID syntax checker. 030 * 031 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 032 */ 033@SuppressWarnings("serial") 034public class CsnSidSyntaxChecker extends SyntaxChecker 035{ 036 /** A logger for this class */ 037 private static final Logger LOG = LoggerFactory.getLogger( CsnSidSyntaxChecker.class ); 038 039 /** 040 * Creates a new instance of CsnSyntaxChecker. 041 */ 042 public CsnSidSyntaxChecker() 043 { 044 super( SchemaConstants.CSN_SID_SYNTAX ); 045 } 046 047 048 /** 049 * {@inheritDoc} 050 */ 051 public boolean isValidSyntax( Object value ) 052 { 053 if ( value == null ) 054 { 055 LOG.debug( "Syntax invalid for 'null'" ); 056 return false; 057 } 058 059 if ( ! ( value instanceof String ) ) 060 { 061 LOG.debug( "Syntax invalid for '{}'", value ); 062 return false; 063 } 064 065 String sidStr = (String)value; 066 067 if ( sidStr.length() > 3 ) 068 { 069 LOG.debug( "Syntax invalid for '{}'", value ); 070 return false; 071 } 072 073 // The SID must be an hexadecimal number between 0x00 and 0xFFF 074 075 try 076 { 077 int sid = Integer.parseInt( sidStr, 16 ); 078 079 if ( ( sid < 0 ) || ( sid > 0x0fff ) ) 080 { 081 LOG.debug( "Syntax invalid for '{}'", value ); 082 return false; 083 } 084 } 085 catch ( NumberFormatException nfe ) 086 { 087 LOG.debug( "Syntax invalid for '{}'", value ); 088 return false; 089 } 090 091 LOG.debug( "Syntax valid for '{}'", value ); 092 return true; 093 } 094}