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