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.aci; 021 022import java.text.ParseException; 023 024import org.apache.directory.shared.ldap.model.constants.SchemaConstants; 025import org.apache.directory.shared.ldap.model.schema.SchemaManager; 026import org.apache.directory.shared.ldap.model.schema.SyntaxChecker; 027import org.apache.directory.shared.util.Strings; 028import org.slf4j.Logger; 029import org.slf4j.LoggerFactory; 030 031 032/** 033 * A SyntaxChecker which verifies that a value is a valid ACIItem. 034 * 035 * 036 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 037 */ 038@SuppressWarnings("serial") 039public class ACIItemSyntaxChecker extends SyntaxChecker 040{ 041 /** A logger for this class */ 042 private static final Logger LOG = LoggerFactory.getLogger( ACIItemSyntaxChecker.class ); 043 044 /** An instance of ACI Item Checker */ 045 private ACIItemChecker aciItemChecker; 046 047 /** 048 * Creates a new instance of ACIItemSyntaxChecker 049 */ 050 public ACIItemSyntaxChecker() 051 { 052 super( SchemaConstants.ACI_ITEM_SYNTAX ); 053 } 054 055 056 /** 057 * {@inheritDoc} 058 */ 059 public boolean isValidSyntax( Object value ) 060 { 061 String strValue = null; 062 063 if ( value == null ) 064 { 065 LOG.debug( "Syntax invalid for 'null'" ); 066 return false; 067 } 068 069 if ( value instanceof String ) 070 { 071 strValue = ( String ) value; 072 } 073 else if ( value instanceof byte[] ) 074 { 075 strValue = Strings.utf8ToString((byte[]) value); 076 } 077 else 078 { 079 strValue = value.toString(); 080 } 081 082 if ( strValue.length() == 0 ) 083 { 084 LOG.debug( "Syntax invalid for '{}'", value ); 085 return false; 086 } 087 088 try 089 { 090 synchronized( aciItemChecker ) 091 { 092 aciItemChecker.parse( strValue ); 093 } 094 095 LOG.debug( "Syntax valid for '{}'", value ); 096 return true; 097 } 098 catch ( ParseException pe ) 099 { 100 LOG.debug( "Syntax invalid for '{}'", value ); 101 return false; 102 } 103 } 104 105 106 /** 107 * {@inheritDoc} 108 */ 109 public void setSchemaManager( SchemaManager schemaManager ) 110 { 111 aciItemChecker = new ACIItemChecker( schemaManager ); 112 } 113}