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.api.ldap.model.schema.syntaxCheckers; 021 022 023import java.text.ParseException; 024 025import org.apache.directory.api.ldap.model.constants.SchemaConstants; 026import org.apache.directory.api.ldap.model.schema.SchemaManager; 027import org.apache.directory.api.ldap.model.schema.SyntaxChecker; 028import org.apache.directory.api.ldap.model.subtree.SubtreeSpecificationChecker; 029import org.apache.directory.api.util.Strings; 030import org.slf4j.Logger; 031import org.slf4j.LoggerFactory; 032 033 034/** 035 * A SyntaxChecker which verifies that a value is a subtree specification. 036 * 037 * It has been removed in RFC 4517 038 * 039 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 040 */ 041@SuppressWarnings("serial") 042public class SubtreeSpecificationSyntaxChecker extends SyntaxChecker 043{ 044 /** A logger for this class */ 045 private static final Logger LOG = LoggerFactory.getLogger( SubtreeSpecificationSyntaxChecker.class ); 046 047 /** The associated checker */ 048 private SubtreeSpecificationChecker subtreeSpecificationChecker; 049 050 051 /** 052 * Creates an instance of SubtreeSpecificationSyntaxChecker 053 */ 054 public SubtreeSpecificationSyntaxChecker() 055 { 056 super( SchemaConstants.SUBTREE_SPECIFICATION_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 'null'" ); 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 = Strings.utf8ToString( ( byte[] ) value ); 080 } 081 else 082 { 083 strValue = value.toString(); 084 } 085 086 if ( strValue.length() == 0 ) 087 { 088 LOG.debug( "Syntax invalid for '{}'", value ); 089 return false; 090 } 091 092 try 093 { 094 synchronized ( subtreeSpecificationChecker ) 095 { 096 subtreeSpecificationChecker.parse( strValue ); 097 } 098 099 LOG.debug( "Syntax valid for '{}'", value ); 100 return true; 101 } 102 catch ( ParseException pe ) 103 { 104 LOG.debug( "Syntax invalid for '{}'", value ); 105 return false; 106 } 107 } 108 109 110 /** 111 * {@inheritDoc} 112 */ 113 public void setSchemaManager( SchemaManager schemaManager ) 114 { 115 subtreeSpecificationChecker = new SubtreeSpecificationChecker( schemaManager ); 116 } 117}