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 */ 020package org.apache.directory.shared.ldap.model.schema.syntaxCheckers; 021 022 023import org.apache.directory.shared.ldap.model.constants.SchemaConstants; 024import org.apache.directory.shared.ldap.model.schema.SyntaxChecker; 025import org.apache.directory.shared.util.Strings; 026import org.slf4j.Logger; 027import 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 */ 040@SuppressWarnings("serial") 041public class MailPreferenceSyntaxChecker extends SyntaxChecker 042{ 043 /** A logger for this class */ 044 private static final Logger LOG = LoggerFactory.getLogger( MailPreferenceSyntaxChecker.class ); 045 046 /** 047 * Creates a new instance of MailPreferenceSyntaxChecker. 048 */ 049 public MailPreferenceSyntaxChecker() 050 { 051 super( SchemaConstants.MAIL_PREFERENCE_SYNTAX ); 052 } 053 054 /** 055 * 056 * Creates a new instance of MailPreferenceSyntaxChecker. 057 * 058 * @param oid the oid to associate with this new SyntaxChecker 059 * 060 */ 061 protected MailPreferenceSyntaxChecker( String oid ) 062 { 063 super( oid ); 064 } 065 066 067 /** 068 * {@inheritDoc} 069 */ 070 public boolean isValidSyntax( Object value ) 071 { 072 String strValue =null; 073 074 if ( value == null ) 075 { 076 LOG.debug( "Syntax invalid for 'null'" ); 077 return false; 078 } 079 080 if ( value instanceof String ) 081 { 082 strValue = ( String ) value; 083 } 084 else if ( value instanceof byte[] ) 085 { 086 strValue = Strings.utf8ToString((byte[]) value); 087 } 088 else 089 { 090 strValue = value.toString(); 091 } 092 093 if ( ( strValue.length() < 8 ) || ( strValue.length() > 18 ) ) 094 { 095 LOG.debug( "Syntax invalid for '{}'", value ); 096 return false; 097 } 098 099 boolean result = ( ( "NO-LISTS".equals( strValue ) ) || ( "ANY-LIST".equals( strValue ) ) 100 || ( "PROFESSIONAL-LISTS".equals( strValue ) ) ); 101 102 if ( result ) 103 { 104 LOG.debug( "Syntax valid for '{}'", value ); 105 } 106 else 107 { 108 LOG.debug( "Syntax invalid for '{}'", value ); 109 } 110 111 return result; 112 } 113}