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.modifyRequest; 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.ldap.codec.api.LdapMessageContainer; 026import org.apache.directory.api.ldap.codec.decorators.ModifyRequestDecorator; 027import org.apache.directory.api.ldap.model.exception.LdapException; 028import org.apache.directory.api.util.Strings; 029import org.slf4j.Logger; 030import 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 */ 038public class StoreModifyRequestAttributeValue extends GrammarAction<LdapMessageContainer<ModifyRequestDecorator>> 039{ 040 /** The logger */ 041 private static final Logger LOG = LoggerFactory.getLogger( StoreModifyRequestAttributeValue.class ); 042 043 /** Speedup for logs */ 044 private static final boolean IS_DEBUG = LOG.isDebugEnabled(); 045 046 047 /** 048 * Instantiates a new modify attribute value action. 049 */ 050 public StoreModifyRequestAttributeValue() 051 { 052 super( "Stores AttributeValue" ); 053 } 054 055 056 /** 057 * {@inheritDoc} 058 */ 059 public void action( LdapMessageContainer<ModifyRequestDecorator> container ) 060 { 061 ModifyRequestDecorator modifyRequestDecorator = container.getMessage(); 062 063 TLV tlv = container.getCurrentTLV(); 064 065 // Store the value. It can't be null 066 byte[] value = Strings.EMPTY_BYTES; 067 068 try 069 { 070 if ( tlv.getLength() == 0 ) 071 { 072 modifyRequestDecorator.addAttributeValue( "" ); 073 } 074 else 075 { 076 value = tlv.getValue().getData(); 077 078 if ( container.isBinary( modifyRequestDecorator.getCurrentAttributeType() ) ) 079 { 080 modifyRequestDecorator.addAttributeValue( value ); 081 } 082 else 083 { 084 modifyRequestDecorator.addAttributeValue( Strings.utf8ToString( ( byte[] ) value ) ); 085 } 086 } 087 } 088 catch ( LdapException le ) 089 { 090 // Just swallow the exception, it can't occur here 091 } 092 093 // We can have an END transition 094 container.setGrammarEndAllowed( true ); 095 096 if ( IS_DEBUG ) 097 { 098 LOG.debug( "Value modified : {}", value ); 099 } 100 } 101}