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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.addRequest;
21  
22  
23  import org.apache.directory.api.asn1.DecoderException;
24  import org.apache.directory.api.asn1.ber.grammar.GrammarAction;
25  import org.apache.directory.api.asn1.ber.tlv.TLV;
26  import org.apache.directory.api.i18n.I18n;
27  import org.apache.directory.api.ldap.codec.api.LdapMessageContainer;
28  import org.apache.directory.api.ldap.codec.decorators.AddRequestDecorator;
29  import org.apache.directory.api.ldap.model.message.AddRequest;
30  import org.apache.directory.api.ldap.model.message.AddRequestImpl;
31  import org.slf4j.Logger;
32  import org.slf4j.LoggerFactory;
33  
34  
35  /**
36   * The action used to initialize the AddRequest response
37   * <pre>
38   * LdapMessage ::= ... AddRequest ...
39   * AddRequest ::= [APPLICATION 8] SEQUENCE { ...
40   * </pre>
41   * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
42   */
43  public class InitAddRequest extends GrammarAction<LdapMessageContainer<AddRequestDecorator>>
44  {
45      /** The logger */
46      private static final Logger LOG = LoggerFactory.getLogger( InitAddRequest.class );
47  
48  
49      /**
50       * Instantiates a new action.
51       */
52      public InitAddRequest()
53      {
54          super( "Init AddRequest" );
55      }
56  
57  
58      /**
59       * {@inheritDoc}
60       */
61      public void action( LdapMessageContainer<AddRequestDecorator> container ) throws DecoderException
62      {
63          // Now, we can allocate the AddRequest Object
64          int messageId = container.getMessageId();
65          AddRequest internalAddRequest = new AddRequestImpl();
66          internalAddRequest.setMessageId( messageId );
67          AddRequestDecorator addRequest = new AddRequestDecorator(
68              container.getLdapCodecService(), internalAddRequest );
69          container.setMessage( addRequest );
70  
71          // We will check that the request is not null
72          TLV tlv = container.getCurrentTLV();
73  
74          if ( tlv.getLength() == 0 )
75          {
76              String msg = I18n.err( I18n.ERR_04084 );
77              LOG.error( msg );
78  
79              // Will generate a PROTOCOL_ERROR
80              throw new DecoderException( msg );
81          }
82      }
83  }