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 */
020 package org.apache.directory.shared.ldap.schema.syntaxCheckers;
021
022
023 import org.apache.directory.shared.ldap.constants.SchemaConstants;
024 import org.apache.directory.shared.ldap.schema.SyntaxChecker;
025 import org.apache.directory.shared.ldap.util.StringTools;
026 import org.slf4j.Logger;
027 import org.slf4j.LoggerFactory;
028
029
030 /**
031 * A syntax checker which checks to see if an attributeType's type is either:
032 * userApplications
033 * directoryOperation
034 * distributedOperation
035 * dSAOperation
036 .* The case is NOT ignored.
037 *
038 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
039 * @version $Rev$
040 */
041 public class AttributeTypeUsageSyntaxChecker extends SyntaxChecker
042 {
043 /** A logger for this class */
044 private static final Logger LOG = LoggerFactory.getLogger( AttributeTypeUsageSyntaxChecker.class );
045
046 /** The serialVersionUID */
047 private static final long serialVersionUID = 1L;
048
049 /**
050 *
051 * Creates a new instance of AttributeTypeUsageSyntaxChecker.
052 *
053 */
054 public AttributeTypeUsageSyntaxChecker()
055 {
056 super( SchemaConstants.ATTRIBUTE_TYPE_USAGE_SYNTAX );
057 }
058
059
060 /**
061 * {@inheritDoc}
062 */
063 public boolean isValidSyntax( Object value )
064 {
065 String strValue = null;
066
067 if ( value == null )
068 {
069 LOG.debug( "Syntax invalid for '{}'", value );
070 return false;
071 }
072
073 if ( value instanceof String )
074 {
075 strValue = ( String ) value;
076 }
077 else if ( value instanceof byte[] )
078 {
079 strValue = StringTools.utf8ToString( ( byte[] ) value );
080 }
081 else
082 {
083 strValue = value.toString();
084 }
085
086 if ( ( strValue.length() < "userApplications".length() ) ||
087 ( strValue.length() > "userApplications".length() ) )
088 {
089 LOG.debug( "Syntax invalid for '{}'", value );
090 return false;
091 }
092
093 char ch = strValue.charAt( 0 );
094
095 switch ( ch )
096 {
097 case( 'd' ):
098 if ( "dSAOperation".equals( strValue ) ||
099 "directoryOperation".equals( strValue ) ||
100 "distributedOperation".equals( strValue ) )
101 {
102 LOG.debug( "Syntax valid for '{}'", value );
103 return true;
104 }
105
106 LOG.debug( "Syntax invalid for '{}'", value );
107 return false;
108
109 case( 'u' ):
110 boolean comp = "userApplications".equals( strValue );
111
112 if ( comp )
113 {
114 LOG.debug( "Syntax valid for '{}'", value );
115 }
116 else
117 {
118 LOG.debug( "Syntax valid for '{}'", value );
119
120 }
121
122 return comp;
123
124 default:
125 LOG.debug( "Syntax invalid for '{}'", value );
126 return false;
127 }
128 }
129 }