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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   *    https://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.extras.extended.ads_impl.endTransaction.controls.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.BerValue;
26  import org.apache.directory.api.asn1.ber.tlv.BooleanDecoder;
27  import org.apache.directory.api.asn1.ber.tlv.BooleanDecoderException;
28  import org.apache.directory.api.asn1.ber.tlv.TLV;
29  import org.apache.directory.api.i18n.I18n;
30  import org.apache.directory.api.ldap.extras.extended.ads_impl.endTransaction.controls.ControlsContainer;
31  import org.apache.directory.api.ldap.model.message.Control;
32  import org.apache.directory.api.util.Strings;
33  import org.slf4j.Logger;
34  import org.slf4j.LoggerFactory;
35  
36  
37  /**
38   * The action used to set the control criticality flag
39   * <pre>
40   * Control ::= SEQUENCE {
41   *     ...
42   *     criticality BOOLEAN DEFAULT FALSE,
43   *     ...
44   * </pre>
45   *
46   * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
47   */
48  public class StoreControlCriticality extends GrammarAction<ControlsContainer>
49  {
50      /** The logger */
51      private static final Logger LOG = LoggerFactory.getLogger( StoreControlCriticality.class );
52  
53      /**
54       * Instantiates a new StoreControlCriticality action.
55       */
56      public StoreControlCriticality()
57      {
58          super( "Store the control criticality" );
59      }
60  
61  
62      /**
63       * {@inheritDoc}
64       */
65      public void action( ControlsContainer container ) throws DecoderException
66      {
67          TLV tlv = container.getCurrentTLV();
68  
69          // Get the current control
70          Control control = container.getCurrentControl();
71  
72          // Store the criticality
73          // We get the value. If it's a 0, it's a FALSE. If it's
74          // a FF, it's a TRUE. Any other value should be an error,
75          // but we could relax this constraint. So if we have
76          // something
77          // which is not 0, it will be interpreted as TRUE, but we
78          // will generate a warning.
79          BerValue value = tlv.getValue();
80  
81          try
82          {
83              control.setCritical( BooleanDecoder.parse( value ) );
84          }
85          catch ( BooleanDecoderException bde )
86          {
87              LOG.error( I18n
88                  .err( I18n.ERR_08103_BAD_CONTROL_CRITICALITY, Strings.dumpBytes( value.getData() ), bde.getMessage() ) );
89  
90              // This will generate a PROTOCOL_ERROR
91              throw new DecoderException( bde.getMessage(), bde );
92          }
93  
94          // We can have an END transition
95          container.setGrammarEndAllowed( true );
96  
97          if ( LOG.isDebugEnabled() )
98          {
99              LOG.debug( I18n.msg( I18n.MSG_08202_CONTROL_CRITICALITY, control.isCritical() ) );
100         }
101     }
102 }