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.codec.actions.compareRequest; 021 022 023import org.apache.directory.shared.asn1.DecoderException; 024import org.apache.directory.shared.asn1.ber.grammar.GrammarAction; 025import org.apache.directory.shared.asn1.ber.tlv.TLV; 026import org.apache.directory.shared.i18n.I18n; 027import org.apache.directory.shared.ldap.codec.api.LdapMessageContainer; 028import org.apache.directory.shared.ldap.codec.api.ResponseCarryingException; 029import org.apache.directory.shared.ldap.codec.decorators.CompareRequestDecorator; 030import org.apache.directory.shared.ldap.model.message.CompareRequest; 031import org.apache.directory.shared.ldap.model.message.CompareResponseImpl; 032import org.apache.directory.shared.ldap.model.message.ResultCodeEnum; 033import org.apache.directory.shared.util.Strings; 034import org.slf4j.Logger; 035import org.slf4j.LoggerFactory; 036 037 038/** 039 * The action used to store the AssertionValue attributeDescription in a Compare Request 040 * <pre> 041 * CompareRequest ::= [APPLICATION 14] SEQUENCE { 042 * ... 043 * ava AttributeValueAssertion } 044 * 045 * AttributeValueAssertion ::= SEQUENCE { 046 * attributeDesc AttributeDescription, 047 * ... 048 * </pre> 049 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 050 */ 051public class StoreCompareRequestAttributeDesc extends GrammarAction<LdapMessageContainer<CompareRequestDecorator>> 052{ 053 /** The logger */ 054 private static final Logger LOG = LoggerFactory.getLogger( StoreCompareRequestAttributeDesc.class ); 055 056 /** Speedup for logs */ 057 private static final boolean IS_DEBUG = LOG.isDebugEnabled(); 058 059 /** 060 * Instantiates a new action. 061 */ 062 public StoreCompareRequestAttributeDesc() 063 { 064 super( "Store CompareRequest assertion description" ); 065 } 066 067 068 /** 069 * {@inheritDoc} 070 */ 071 public void action( LdapMessageContainer<CompareRequestDecorator> container ) throws DecoderException 072 { 073 // Get the CompareRequest Object 074 CompareRequest compareRequest = container.getMessage(); 075 076 // Get the Value and store it in the CompareRequest 077 TLV tlv = container.getCurrentTLV(); 078 079 // We have to handle the special case of a 0 length matched 080 // Dn 081 if ( tlv.getLength() == 0 ) 082 { 083 String msg = I18n.err( I18n.ERR_04093 ); 084 LOG.error( msg ); 085 CompareResponseImpl response = new CompareResponseImpl( compareRequest.getMessageId() ); 086 087 throw new ResponseCarryingException( msg, response, ResultCodeEnum.INVALID_ATTRIBUTE_SYNTAX, 088 compareRequest.getName(), null ); 089 } 090 091 String type = Strings.utf8ToString( tlv.getValue().getData() ); 092 compareRequest.setAttributeId( type ); 093 094 if ( IS_DEBUG ) 095 { 096 LOG.debug( "Comparing attribute description {}", compareRequest.getAttributeId() ); 097 } 098 } 099}