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 */
020 package org.apache.directory.shared.ldap.codec.actions;
021
022
023 import org.apache.directory.shared.asn1.ber.IAsn1Container;
024 import org.apache.directory.shared.asn1.ber.grammar.GrammarAction;
025 import org.apache.directory.shared.asn1.ber.tlv.TLV;
026 import org.apache.directory.shared.asn1.codec.DecoderException;
027 import org.apache.directory.shared.ldap.codec.LdapMessageContainer;
028 import org.apache.directory.shared.ldap.codec.search.SearchRequestCodec;
029 import org.apache.directory.shared.ldap.util.StringTools;
030
031 import org.slf4j.Logger;
032 import org.slf4j.LoggerFactory;
033
034
035 /**
036 * The action used to store the attribute description
037 *
038 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
039 * @version $Rev$, $Date$,
040 */
041 public class AttributeDescAction extends GrammarAction
042 {
043 /** The logger */
044 private static final Logger log = LoggerFactory.getLogger( AttributeDescAction.class );
045
046 /** Speedup for logs */
047 private static final boolean IS_DEBUG = log.isDebugEnabled();
048
049 public AttributeDescAction()
050 {
051 super( "Store attribute description" );
052 }
053
054 /**
055 * The initialization action
056 */
057 public void action( IAsn1Container container ) throws DecoderException
058 {
059 LdapMessageContainer ldapMessageContainer = ( LdapMessageContainer ) container;
060
061 SearchRequestCodec searchRequest = ldapMessageContainer.getLdapMessage().getSearchRequest();
062
063 TLV tlv = ldapMessageContainer.getCurrentTLV();
064 String attributeDescription = null;
065
066 if ( tlv.getLength() != 0 )
067 {
068 attributeDescription = StringTools.utf8ToString( tlv.getValue().getData() );
069
070 // If the attributeDescription is empty, we won't add it
071 if ( !StringTools.isEmpty( attributeDescription.trim() ) )
072 {
073 searchRequest.addAttribute( attributeDescription );
074 }
075 }
076
077 // We can have an END transition
078 ldapMessageContainer.grammarEndAllowed( true );
079
080 if ( IS_DEBUG )
081 {
082 log.debug( "Decoded Attribute Description : {}", attributeDescription );
083 }
084
085 return;
086 }
087 }