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.request.compare; 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.model.message.CompareRequest; 030import org.apache.directory.api.ldap.model.message.CompareResponseImpl; 031import org.apache.directory.api.ldap.model.message.ResultCodeEnum; 032import org.apache.directory.api.util.Strings; 033import org.slf4j.Logger; 034import org.slf4j.LoggerFactory; 035 036 037/** 038 * The action used to store the AssertionValue attributeDescription in a Compare Request 039 * <pre> 040 * CompareRequest ::= [APPLICATION 14] SEQUENCE { 041 * ... 042 * ava AttributeValueAssertion } 043 * 044 * AttributeValueAssertion ::= SEQUENCE { 045 * attributeDesc AttributeDescription, 046 * ... 047 * </pre> 048 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 049 */ 050public class StoreCompareRequestAttributeDesc extends GrammarAction<LdapMessageContainer<CompareRequest>> 051{ 052 /** The logger */ 053 private static final Logger LOG = LoggerFactory.getLogger( StoreCompareRequestAttributeDesc.class ); 054 055 /** 056 * Instantiates a new action. 057 */ 058 public StoreCompareRequestAttributeDesc() 059 { 060 super( "Store CompareRequest assertion description" ); 061 } 062 063 064 /** 065 * {@inheritDoc} 066 */ 067 @Override 068 public void action( LdapMessageContainer<CompareRequest> container ) throws DecoderException 069 { 070 // Get the CompareRequest Object 071 CompareRequest compareRequest = container.getMessage(); 072 073 // Get the Value and store it in the CompareRequest 074 TLV tlv = container.getCurrentTLV(); 075 076 // We have to handle the special case of a 0 length matched 077 // Dn 078 if ( tlv.getLength() == 0 ) 079 { 080 String msg = I18n.err( I18n.ERR_05118_NULL_ATTRIBUTE_DESC ); 081 LOG.error( msg ); 082 CompareResponseImpl response = new CompareResponseImpl( compareRequest.getMessageId() ); 083 084 throw new ResponseCarryingException( msg, response, ResultCodeEnum.INVALID_ATTRIBUTE_SYNTAX, 085 compareRequest.getName(), null ); 086 } 087 088 String type = Strings.utf8ToString( tlv.getValue().getData() ); 089 compareRequest.setAttributeId( type ); 090 091 if ( LOG.isDebugEnabled() ) 092 { 093 LOG.debug( I18n.msg( I18n.MSG_05122_COMPARING_ATTRIBUTE_DESCRIPTION, compareRequest.getAttributeId() ) ); 094 } 095 } 096}