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.schema.SyntaxChecker;
024 import org.slf4j.Logger;
025 import 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 * @version $Rev: 736240 $
033 */
034 public class CsnSidSyntaxChecker extends SyntaxChecker
035 {
036 /** A logger for this class */
037 private static final Logger LOG = LoggerFactory.getLogger( CsnSidSyntaxChecker.class );
038
039 /** The serialVersionUID */
040 private static final long serialVersionUID = 1L;
041
042 /**
043 * Creates a new instance of CsnSyntaxChecker.
044 */
045 public CsnSidSyntaxChecker()
046 {
047 super( SchemaConstants.CSN_SID_SYNTAX );
048 }
049
050
051 /**
052 * {@inheritDoc}
053 */
054 public boolean isValidSyntax( Object value )
055 {
056 if ( value == null )
057 {
058 LOG.debug( "Syntax invalid for '{}'", value );
059 return false;
060 }
061
062 if ( ! ( value instanceof String ) )
063 {
064 LOG.debug( "Syntax invalid for '{}'", value );
065 return false;
066 }
067
068 String sidStr = (String)value;
069
070 if ( sidStr.length() > 3 )
071 {
072 LOG.debug( "Syntax invalid for '{}'", value );
073 return false;
074 }
075
076 // The SID must be an hexadecimal number between 0x00 and 0xFFF
077
078 try
079 {
080 int sid = Integer.parseInt( sidStr, 16 );
081
082 if ( ( sid < 0 ) || ( sid > 0x0fff ) )
083 {
084 LOG.debug( "Syntax invalid for '{}'", value );
085 return false;
086 }
087 }
088 catch ( NumberFormatException nfe )
089 {
090 LOG.debug( "Syntax invalid for '{}'", value );
091 return false;
092 }
093
094 LOG.debug( "Syntax valid for '{}'", value );
095 return true;
096 }
097 }