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.modify.ModifyRequestCodec;
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 modifyRequest
035 *
036 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
037 * @version $Rev$, $Date$,
038 */
039 public class ModifyAttributeValueAction extends GrammarAction
040 {
041 /** The logger */
042 private static final Logger log = LoggerFactory.getLogger( ModifyAttributeValueAction.class );
043
044 /** Speedup for logs */
045 private static final boolean IS_DEBUG = log.isDebugEnabled();
046
047 public ModifyAttributeValueAction()
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 ModifyRequestCodec modifyRequest = ldapMessageContainer.getModifyRequest();
059
060 TLV tlv = ldapMessageContainer.getCurrentTLV();
061
062 // Store the value. It can't be null
063 byte[] value = StringTools.EMPTY_BYTES;
064
065 if ( tlv.getLength() == 0 )
066 {
067 modifyRequest.addAttributeValue( "" );
068 }
069 else
070 {
071 value = tlv.getValue().getData();
072
073 if ( ldapMessageContainer.isBinary( modifyRequest.getCurrentAttributeType() ) )
074 {
075 modifyRequest.addAttributeValue( value );
076 }
077 else
078 {
079 modifyRequest.addAttributeValue( StringTools.utf8ToString( ( byte[] ) value ) );
080 }
081 }
082
083 // We can have an END transition
084 ldapMessageContainer.grammarEndAllowed( true );
085
086 if ( IS_DEBUG )
087 {
088 log.debug( "Value modified : {}", value );
089 }
090 }
091 }