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.ldap.codec.LdapMessageContainer;
027    import org.apache.directory.shared.ldap.codec.search.SearchResultEntryCodec;
028    import org.apache.directory.shared.ldap.util.StringTools;
029    import org.slf4j.Logger;
030    import org.slf4j.LoggerFactory;
031    
032    
033    /**
034     * The action used to store a Value to an search result entry
035     * 
036     * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
037     * @version $Rev$, $Date$, 
038     */
039    public class SearchResultAttributeValueAction extends GrammarAction
040    {
041        /** The logger */
042        private static final Logger log = LoggerFactory.getLogger( SearchResultAttributeValueAction.class );
043    
044        /** Speedup for logs */
045        private static final boolean IS_DEBUG = log.isDebugEnabled();
046    
047        public SearchResultAttributeValueAction()
048        {
049            super( "Stores AttributeValue" );
050        }
051    
052        /**
053         * The initialization action
054         */
055        public void action( IAsn1Container container )
056        {
057            LdapMessageContainer ldapMessageContainer = ( LdapMessageContainer ) container;
058            SearchResultEntryCodec searchResultEntry = ldapMessageContainer.getSearchResultEntry();
059    
060            TLV tlv = ldapMessageContainer.getCurrentTLV();
061    
062            // Store the value
063            Object value = null;
064    
065            if ( tlv.getLength() == 0 )
066            {
067                searchResultEntry.addAttributeValue( "" );
068    
069                log.debug( "The attribute value is null" );
070            }
071            else
072            {
073                if ( ldapMessageContainer.isBinary( searchResultEntry.getCurrentAttributeValueType() ) )
074                {
075                    value = tlv.getValue().getData();
076    
077                    if ( IS_DEBUG )
078                    {
079                        log.debug( "Attribute value {}", StringTools.dumpBytes( ( byte[] ) value ) );
080                    }
081                }
082                else
083                {
084                    value = StringTools.utf8ToString( tlv.getValue().getData() );
085    
086                    log.debug( "Attribute value {}", value );
087                }
088    
089                searchResultEntry.addAttributeValue( value );
090            }
091    
092            // We can have an END transition
093            ldapMessageContainer.grammarEndAllowed( true );
094        }
095    }