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 SyntaxChecker which verifies that a value is a Boolean according to RFC 1778.
032 *
033 * From RFC 1778 :
034 *
035 * <mail-preference> ::= "NO-LISTS" | "ANY-LIST" | "PROFESSIONAL-LISTS"
036 *
037 *
038 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
039 * @version $Rev$
040 */
041 public class MailPreferenceSyntaxChecker extends SyntaxChecker
042 {
043 /** A logger for this class */
044 private static final Logger LOG = LoggerFactory.getLogger( MailPreferenceSyntaxChecker.class );
045
046 /** The serialVersionUID */
047 private static final long serialVersionUID = 1L;
048
049 /**
050 * Creates a new instance of MailPreferenceSyntaxChecker.
051 */
052 public MailPreferenceSyntaxChecker()
053 {
054 super( SchemaConstants.MAIL_PREFERENCE_SYNTAX );
055 }
056
057 /**
058 *
059 * Creates a new instance of MailPreferenceSyntaxChecker.
060 *
061 * @param oid the oid to associate with this new SyntaxChecker
062 *
063 */
064 protected MailPreferenceSyntaxChecker( String oid )
065 {
066 super( oid );
067 }
068
069
070 /**
071 * {@inheritDoc}
072 */
073 public boolean isValidSyntax( Object value )
074 {
075 String strValue =null;
076
077 if ( value == null )
078 {
079 LOG.debug( "Syntax invalid for '{}'", value );
080 return false;
081 }
082
083 if ( value instanceof String )
084 {
085 strValue = ( String ) value;
086 }
087 else if ( value instanceof byte[] )
088 {
089 strValue = StringTools.utf8ToString( ( byte[] ) value );
090 }
091 else
092 {
093 strValue = value.toString();
094 }
095
096 if ( ( strValue.length() < 8 ) || ( strValue.length() > 18 ) )
097 {
098 LOG.debug( "Syntax invalid for '{}'", value );
099 return false;
100 }
101
102 boolean result = ( ( "NO-LISTS".equals( strValue ) ) || ( "ANY-LIST".equals( strValue ) ) ||
103 ( "PROFESSIONAL-LISTS".equals( strValue ) ) );
104
105 if ( result )
106 {
107 LOG.debug( "Syntax valid for '{}'", value );
108 }
109 else
110 {
111 LOG.debug( "Syntax invalid for '{}'", value );
112 }
113
114 return result;
115 }
116 }