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 * https://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.search.filter; 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.AttributeValueAssertion; 028import org.apache.directory.api.ldap.codec.api.LdapMessageContainer; 029import org.apache.directory.api.ldap.codec.search.AttributeValueAssertionFilter; 030import org.apache.directory.api.ldap.model.message.SearchRequest; 031import org.apache.directory.api.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<SearchRequest>> 042{ 043 /** The logger */ 044 private static final Logger LOG = LoggerFactory.getLogger( InitAttributeDescFilter.class ); 045 046 /** 047 * Instantiates a new init attribute desc filter action. 048 */ 049 public InitAttributeDescFilter() 050 { 051 super( "Initialize AttributeDesc filter" ); 052 } 053 054 055 /** 056 * {@inheritDoc} 057 */ 058 public void action( LdapMessageContainer<SearchRequest> container ) throws DecoderException 059 { 060 TLV tlv = container.getCurrentTLV(); 061 062 AttributeValueAssertion assertion = new AttributeValueAssertion(); 063 064 if ( tlv.getLength() == 0 ) 065 { 066 String msg = I18n.err( I18n.ERR_05135_EMPTY_ATTRIBUTE_DESCRIPTION ); 067 LOG.error( msg ); 068 throw new DecoderException( msg ); 069 } 070 else 071 { 072 String type = Strings.utf8ToString( tlv.getValue().getData() ); 073 assertion.setAttributeDesc( type ); 074 075 AttributeValueAssertionFilter terminalFilter = ( AttributeValueAssertionFilter ) 076 container.getTerminalFilter(); 077 terminalFilter.setAssertion( assertion ); 078 } 079 080 if ( LOG.isDebugEnabled() ) 081 { 082 LOG.debug( I18n.msg( I18n.MSG_05143_INITIALIZE_ATT_DESC_FILTER ) ); 083 } 084 } 085}