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.StringConstants; 029import org.apache.directory.api.util.Strings; 030import org.slf4j.Logger; 031import org.slf4j.LoggerFactory; 032 033 034/** 035 * The action used to store a Value to an modifyRequest 036 * 037 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 038 */ 039public class StoreModifyRequestAttributeValue extends GrammarAction<LdapMessageContainer<ModifyRequestDecorator>> 040{ 041 /** The logger */ 042 private static final Logger LOG = LoggerFactory.getLogger( StoreModifyRequestAttributeValue.class ); 043 044 /** Speedup for logs */ 045 private static final boolean IS_DEBUG = LOG.isDebugEnabled(); 046 047 048 /** 049 * Instantiates a new modify attribute value action. 050 */ 051 public StoreModifyRequestAttributeValue() 052 { 053 super( "Stores AttributeValue" ); 054 } 055 056 057 /** 058 * {@inheritDoc} 059 */ 060 public void action( LdapMessageContainer<ModifyRequestDecorator> container ) 061 { 062 ModifyRequestDecorator modifyRequestDecorator = container.getMessage(); 063 064 TLV tlv = container.getCurrentTLV(); 065 066 // Store the value. It can't be null 067 byte[] value = StringConstants.EMPTY_BYTES; 068 069 try 070 { 071 if ( tlv.getLength() == 0 ) 072 { 073 modifyRequestDecorator.addAttributeValue( "" ); 074 } 075 else 076 { 077 value = tlv.getValue().getData(); 078 079 if ( container.isBinary( modifyRequestDecorator.getCurrentAttributeType() ) ) 080 { 081 modifyRequestDecorator.addAttributeValue( value ); 082 } 083 else 084 { 085 modifyRequestDecorator.addAttributeValue( Strings.utf8ToString( ( byte[] ) value ) ); 086 } 087 } 088 } 089 catch ( LdapException le ) 090 { 091 // Just swallow the exception, it can't occur here 092 } 093 094 // We can have an END transition 095 container.setGrammarEndAllowed( true ); 096 097 if ( IS_DEBUG ) 098 { 099 LOG.debug( "Value modified : {}", value ); 100 } 101 } 102}