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.codec.actions.compareRequest; 021 022 023import org.apache.directory.api.asn1.DecoderException; 024import org.apache.directory.api.asn1.ber.grammar.GrammarAction; 025import org.apache.directory.api.asn1.ber.tlv.TLV; 026import org.apache.directory.api.i18n.I18n; 027import org.apache.directory.api.ldap.codec.api.LdapMessageContainer; 028import org.apache.directory.api.ldap.codec.api.ResponseCarryingException; 029import org.apache.directory.api.ldap.codec.decorators.CompareRequestDecorator; 030import org.apache.directory.api.ldap.model.message.CompareRequest; 031import org.apache.directory.api.ldap.model.message.CompareResponseImpl; 032import org.apache.directory.api.ldap.model.message.ResultCodeEnum; 033import org.apache.directory.api.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 /** 061 * Instantiates a new action. 062 */ 063 public StoreCompareRequestAttributeDesc() 064 { 065 super( "Store CompareRequest assertion description" ); 066 } 067 068 069 /** 070 * {@inheritDoc} 071 */ 072 public void action( LdapMessageContainer<CompareRequestDecorator> container ) throws DecoderException 073 { 074 // Get the CompareRequest Object 075 CompareRequest compareRequest = container.getMessage(); 076 077 // Get the Value and store it in the CompareRequest 078 TLV tlv = container.getCurrentTLV(); 079 080 // We have to handle the special case of a 0 length matched 081 // Dn 082 if ( tlv.getLength() == 0 ) 083 { 084 String msg = I18n.err( I18n.ERR_04093 ); 085 LOG.error( msg ); 086 CompareResponseImpl response = new CompareResponseImpl( compareRequest.getMessageId() ); 087 088 throw new ResponseCarryingException( msg, response, ResultCodeEnum.INVALID_ATTRIBUTE_SYNTAX, 089 compareRequest.getName(), null ); 090 } 091 092 String type = Strings.utf8ToString( tlv.getValue().getData() ); 093 compareRequest.setAttributeId( type ); 094 095 if ( IS_DEBUG ) 096 { 097 LOG.debug( "Comparing attribute description {}", compareRequest.getAttributeId() ); 098 } 099 } 100}