1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 *
19 */
20 package org.apache.directory.api.ldap.codec.actions.modifyRequest;
21
22
23 import org.apache.directory.api.asn1.ber.grammar.GrammarAction;
24 import org.apache.directory.api.asn1.ber.tlv.TLV;
25 import org.apache.directory.api.ldap.codec.api.LdapMessageContainer;
26 import org.apache.directory.api.ldap.codec.decorators.ModifyRequestDecorator;
27 import org.slf4j.Logger;
28 import org.slf4j.LoggerFactory;
29
30
31 /**
32 * The action used to initialize the set of ModificationRequest AVAs
33 * <pre>
34 * ModifyRequest ::= [APPLICATION 6] SEQUENCE {
35 * ...
36 * modification SEQUENCE OF SEQUENCE {
37 * ...
38 * modification AttributeTypeAndValues }
39 *
40 * AttributeTypeAndValues ::= SEQUENCE {
41 * ...
42 * vals SET OF AttributeValue }
43 * </pre>
44 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
45 */
46 public class InitAttributeVals extends GrammarAction<LdapMessageContainer<ModifyRequestDecorator>>
47 {
48 /** The logger */
49 private static final Logger LOG = LoggerFactory.getLogger( InitAttributeVals.class );
50
51
52 /**
53 * Instantiates a new action.
54 */
55 public InitAttributeVals()
56 {
57 super( "Init Attribute vals" );
58 }
59
60
61 /**
62 * {@inheritDoc}
63 */
64 public void action( LdapMessageContainer<ModifyRequestDecorator> container )
65 {
66 TLV tlv = container.getCurrentTLV();
67
68 // If the length is null, we store an empty value
69 if ( tlv.getLength() == 0 )
70 {
71 LOG.debug( "No vals for this attribute" );
72 }
73
74 // We can have an END transition
75 container.setGrammarEndAllowed( true );
76
77 LOG.debug( "Some vals are to be decoded" );
78 }
79 }