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.add.AddRequestCodec;
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 AddRequest
035     * 
036     * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
037     * @version $Rev$, $Date$, 
038     */
039    public class ValueAction extends GrammarAction
040    {
041        /** The logger */
042        private static final Logger log = LoggerFactory.getLogger( ValueAction.class );
043    
044        /** Speedup for logs */
045        private static final boolean IS_DEBUG = log.isDebugEnabled();
046    
047    
048        public ValueAction()
049        {
050            super( "Store a value" );
051        }
052    
053    
054        /**
055         * The initialization action
056         */
057        public void action( IAsn1Container container )
058        {
059    
060            LdapMessageContainer ldapMessageContainer = ( LdapMessageContainer ) container;
061            AddRequestCodec addRequest = ldapMessageContainer.getAddRequest();
062    
063            TLV tlv = ldapMessageContainer.getCurrentTLV();
064    
065            // Store the value. It can't be null
066            Object value = null;
067    
068            if ( tlv.getLength() == 0 )
069            {
070                addRequest.addAttributeValue( "" );
071            }
072            else
073            {
074                if ( ldapMessageContainer.isBinary( addRequest.getCurrentAttributeType() ) )
075                {
076                    value = tlv.getValue().getData();
077    
078                    if ( IS_DEBUG )
079                    {
080                        log.debug( "Adding value {}", StringTools.dumpBytes( ( byte[] ) value ) );
081                    }
082    
083                    addRequest.addAttributeValue( ( byte[] ) value );
084                }
085                else
086                {
087                    value = StringTools.utf8ToString( tlv.getValue().getData() );
088    
089                    if ( IS_DEBUG )
090                    {
091                        log.debug( "Adding value {}" + value );
092                    }
093    
094                    addRequest.addAttributeValue( ( String ) value );
095                }
096    
097            }
098    
099            // We can have an END transition
100            ldapMessageContainer.grammarEndAllowed( true );
101        }
102    }