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.DecoderException;
024import org.apache.directory.api.asn1.ber.grammar.GrammarAction;
025import org.apache.directory.api.asn1.ber.tlv.TLV;
026import org.apache.directory.api.i18n.I18n;
027import org.apache.directory.api.ldap.codec.api.LdapMessageContainer;
028import org.apache.directory.api.ldap.codec.api.ResponseCarryingException;
029import org.apache.directory.api.ldap.codec.decorators.ModifyRequestDecorator;
030import org.apache.directory.api.ldap.model.message.ModifyRequest;
031import org.apache.directory.api.ldap.model.message.ModifyResponseImpl;
032import org.apache.directory.api.ldap.model.message.ResultCodeEnum;
033import org.apache.directory.api.util.Strings;
034import org.slf4j.Logger;
035import org.slf4j.LoggerFactory;
036
037
038/**
039 * The action used to store the ModificationRequest's attribute type
040 * <pre>
041 * ModifyRequest ::= [APPLICATION 6] SEQUENCE {
042 *     ...
043 *     modification SEQUENCE OF SEQUENCE {
044 *             ...
045 *         modification   AttributeTypeAndValues }
046 *
047 * AttributeTypeAndValues ::= SEQUENCE {
048 *     type AttributeDescription,
049 *     ...
050 * </pre>
051 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
052 */
053public class AddModifyRequestAttribute extends GrammarAction<LdapMessageContainer<ModifyRequestDecorator>>
054{
055    /** The logger */
056    private static final Logger LOG = LoggerFactory.getLogger( AddModifyRequestAttribute.class );
057
058    /** Speedup for logs */
059    private static final boolean IS_DEBUG = LOG.isDebugEnabled();
060
061
062    /**
063     * Instantiates a new action.
064     */
065    public AddModifyRequestAttribute()
066    {
067        super( "Store Modify request operation type" );
068    }
069
070
071    /**
072     * {@inheritDoc}
073     */
074    public void action( LdapMessageContainer<ModifyRequestDecorator> container ) throws DecoderException
075    {
076        ModifyRequestDecorator modifyRequestDecorator = container.getMessage();
077        ModifyRequest modifyRequest = modifyRequestDecorator.getDecorated();
078
079        TLV tlv = container.getCurrentTLV();
080
081        // Store the value. It can't be null
082        String type;
083
084        if ( tlv.getLength() == 0 )
085        {
086            String msg = I18n.err( I18n.ERR_04083 );
087            LOG.error( msg );
088
089            ModifyResponseImpl response = new ModifyResponseImpl( modifyRequest.getMessageId() );
090            throw new ResponseCarryingException( msg, response, ResultCodeEnum.INVALID_ATTRIBUTE_SYNTAX,
091                modifyRequest.getName(), null );
092        }
093        else
094        {
095            type = Strings.utf8ToString( tlv.getValue().getData() );
096            modifyRequestDecorator.addAttributeTypeAndValues( type );
097        }
098
099        if ( IS_DEBUG )
100        {
101            LOG.debug( "Modifying type : {}", type );
102        }
103    }
104}