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.searchRequest.filter; 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.AttributeValueAssertion; 028import org.apache.directory.shared.ldap.codec.api.LdapMessageContainer; 029import org.apache.directory.shared.ldap.codec.decorators.SearchRequestDecorator; 030import org.apache.directory.shared.ldap.codec.search.AttributeValueAssertionFilter; 031import org.apache.directory.shared.util.Strings; 032import org.slf4j.Logger; 033import org.slf4j.LoggerFactory; 034 035 036/** 037 * The action used to initialize the AttributeDesc filter 038 * 039 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 040 */ 041public class InitAttributeDescFilter extends GrammarAction<LdapMessageContainer<SearchRequestDecorator>> 042{ 043 /** The logger */ 044 private static final Logger LOG = LoggerFactory.getLogger( InitAttributeDescFilter.class ); 045 046 /** Speedup for logs */ 047 private static final boolean IS_DEBUG = LOG.isDebugEnabled(); 048 049 050 /** 051 * Instantiates a new init attribute desc filter action. 052 */ 053 public InitAttributeDescFilter() 054 { 055 super( "Initialize AttributeDesc filter" ); 056 } 057 058 059 /** 060 * {@inheritDoc} 061 */ 062 public void action( LdapMessageContainer<SearchRequestDecorator> container ) throws DecoderException 063 { 064 SearchRequestDecorator searchRequestDecorator = container.getMessage(); 065 066 TLV tlv = container.getCurrentTLV(); 067 068 AttributeValueAssertion assertion = new AttributeValueAssertion(); 069 070 if ( tlv.getLength() == 0 ) 071 { 072 String msg = I18n.err( I18n.ERR_04007 ); 073 LOG.error( msg ); 074 throw new DecoderException( msg ); 075 } 076 else 077 { 078 String type = Strings.utf8ToString(tlv.getValue().getData()); 079 assertion.setAttributeDesc( type ); 080 081 AttributeValueAssertionFilter terminalFilter = ( AttributeValueAssertionFilter ) 082 searchRequestDecorator.getTerminalFilter(); 083 terminalFilter.setAssertion( assertion ); 084 } 085 086 if ( IS_DEBUG ) 087 { 088 LOG.debug( "Initialize AttributeDesc filter" ); 089 } 090 } 091}