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 */ 020package org.apache.directory.api.ldap.codec.actions.request.modify; 021 022 023import org.apache.directory.api.asn1.ber.grammar.GrammarAction; 024import org.apache.directory.api.asn1.ber.tlv.TLV; 025import org.apache.directory.api.i18n.I18n; 026import org.apache.directory.api.ldap.codec.api.LdapMessageContainer; 027import org.apache.directory.api.ldap.model.entry.Attribute; 028import org.apache.directory.api.ldap.model.exception.LdapException; 029import org.apache.directory.api.ldap.model.message.ModifyRequest; 030import org.apache.directory.api.util.Strings; 031import org.slf4j.Logger; 032import org.slf4j.LoggerFactory; 033 034 035/** 036 * The action used to store a Value to an modifyRequest 037 * 038 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 039 */ 040public class StoreModifyRequestAttributeValue extends GrammarAction<LdapMessageContainer<ModifyRequest>> 041{ 042 /** The logger */ 043 private static final Logger LOG = LoggerFactory.getLogger( StoreModifyRequestAttributeValue.class ); 044 045 /** 046 * Instantiates a new modify attribute value action. 047 */ 048 public StoreModifyRequestAttributeValue() 049 { 050 super( "Stores AttributeValue" ); 051 } 052 053 054 /** 055 * {@inheritDoc} 056 */ 057 @Override 058 public void action( LdapMessageContainer<ModifyRequest> container ) 059 { 060 TLV tlv = container.getCurrentTLV(); 061 062 // Store the value. It can't be null 063 byte[] value = Strings.EMPTY_BYTES; 064 Attribute currentAttribute = container.getCurrentAttribute(); 065 066 try 067 { 068 if ( tlv.getLength() == 0 ) 069 { 070 currentAttribute.add( "" ); 071 } 072 else 073 { 074 value = tlv.getValue().getData(); 075 076 if ( container.isBinary( currentAttribute.getId() ) ) 077 { 078 container.getCurrentAttribute().add( value ); 079 } 080 else 081 { 082 currentAttribute.add( Strings.utf8ToString( ( byte[] ) value ) ); 083 } 084 } 085 } 086 catch ( LdapException le ) 087 { 088 // Just swallow the exception, it can't occur here 089 } 090 091 // We can have an END transition 092 container.setGrammarEndAllowed( true ); 093 094 if ( LOG.isDebugEnabled() ) 095 { 096 LOG.debug( I18n.msg( I18n.MSG_05131_VALUE_MODIFIED, value ) ); 097 } 098 } 099}