View Javadoc
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.shared.kerberos.codec.apReq.actions;
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.shared.kerberos.codec.apReq.ApReqContainer;
28  import org.apache.directory.shared.kerberos.messages.ApReq;
29  import org.slf4j.Logger;
30  import org.slf4j.LoggerFactory;
31  
32  
33  /**
34   * The action used to initialize the AP-REQ object
35   *
36   * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
37   */
38  public class ApReqInit extends GrammarAction<ApReqContainer>
39  {
40      /** The logger */
41      private static final Logger LOG = LoggerFactory.getLogger( ApReqInit.class );
42  
43  
44      /**
45       * Instantiates a new ApReqInit action.
46       */
47      public ApReqInit()
48      {
49          super( "AP-REQ initialization" );
50      }
51  
52  
53      /**
54       * {@inheritDoc}
55       */
56      public void action( ApReqContainer apReqContainer ) throws DecoderException
57      {
58          TLV tlv = apReqContainer.getCurrentTLV();
59  
60          // The Length should not be null
61          if ( tlv.getLength() == 0 )
62          {
63              LOG.error( I18n.err( I18n.ERR_01308_ZERO_LENGTH_TLV ) );
64  
65              // This will generate a PROTOCOL_ERROR
66              throw new DecoderException( I18n.err( I18n.ERR_01309_EMPTY_TLV ) );
67          }
68  
69          // Create the AP-REQ now
70          ApReqectory/shared/kerberos/messages/ApReq.html#ApReq">ApReq apReq = new ApReq();
71  
72          apReqContainer.setApReq( apReq );
73      }
74  }