| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| */ |
| package org.apache.directory.shared.ldap.codec.actions; |
| |
| |
| import org.apache.directory.shared.asn1.ber.grammar.GrammarAction; |
| import org.apache.directory.shared.asn1.ber.tlv.TLV; |
| import org.apache.directory.shared.asn1.DecoderException; |
| import org.apache.directory.shared.ldap.codec.LdapMessageContainer; |
| import org.apache.directory.shared.ldap.codec.decorators.SearchRequestDecorator; |
| import org.apache.directory.shared.ldap.codec.search.PresentFilter; |
| |
| import org.apache.directory.shared.util.Strings; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| |
| /** |
| * The action used to initialize the Present filter |
| * |
| * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> |
| */ |
| public class InitPresentFilterAction extends GrammarAction<LdapMessageContainer<SearchRequestDecorator>> |
| { |
| /** The logger */ |
| private static final Logger LOG = LoggerFactory.getLogger( InitPresentFilterAction.class ); |
| |
| /** Speedup for logs */ |
| private static final boolean IS_DEBUG = LOG.isDebugEnabled(); |
| |
| |
| /** |
| * Instantiates a new init present filter action. |
| */ |
| public InitPresentFilterAction() |
| { |
| super( "Init present filter Value" ); |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public void action( LdapMessageContainer<SearchRequestDecorator> container ) throws DecoderException |
| { |
| SearchRequestDecorator searchRequestDecorator = container.getMessage(); |
| |
| TLV tlv = container.getCurrentTLV(); |
| |
| // We can allocate the Attribute Value Assertion |
| PresentFilter presentFilter = new PresentFilter( container.getTlvId() ); |
| |
| // add the filter to the request filter |
| searchRequestDecorator.addCurrentFilter( presentFilter ); |
| searchRequestDecorator.setTerminalFilter( presentFilter ); |
| |
| String value = Strings.utf8ToString(tlv.getValue().getData()); |
| |
| if ( Strings.isEmpty(value) ) |
| { |
| presentFilter.setAttributeDescription( "" ); |
| } |
| else |
| { |
| // Store the value. |
| String type = Strings.utf8ToString(tlv.getValue().getData()); |
| presentFilter.setAttributeDescription( type ); |
| } |
| |
| // We now have to get back to the nearest filter which is |
| // not terminal. |
| searchRequestDecorator.unstackFilters( container ); |
| |
| if ( IS_DEBUG ) |
| { |
| LOG.debug( "Initialize Present filter" ); |
| } |
| } |
| } |