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.api.ldap.codec.actions.searchRequest.filter;
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.ldap.codec.api.LdapMessageContainer;
27  import org.apache.directory.api.ldap.codec.decorators.SearchRequestDecorator;
28  import org.apache.directory.api.ldap.codec.search.ExtensibleMatchFilter;
29  import org.apache.directory.api.ldap.model.entry.BinaryValue;
30  import org.slf4j.Logger;
31  import org.slf4j.LoggerFactory;
32  
33  
34  /**
35   * The action used to store a match value
36   * <pre>
37   * Filter ::= CHOICE {
38   *     ...
39   *     extensibleMatch  [9] MatchingRuleAssertion }
40   *
41   * MatchingRuleAssertion ::= SEQUENCE {
42   *     ...
43   *     matchValue [3] AssertionValue,
44   *     ...
45   * </pre>
46   * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
47   */
48  public class StoreMatchValue extends GrammarAction<LdapMessageContainer<SearchRequestDecorator>>
49  {
50      /** The logger */
51      private static final Logger LOG = LoggerFactory.getLogger( StoreMatchValue.class );
52  
53      /** Speedup for logs */
54      private static final boolean IS_DEBUG = LOG.isDebugEnabled();
55  
56  
57      /**
58       * Instantiates a new store match value action.
59       */
60      public StoreMatchValue()
61      {
62          super( "Store match Value" );
63      }
64  
65  
66      /**
67       * {@inheritDoc}
68       */
69      public void action( LdapMessageContainer<SearchRequestDecorator> container ) throws DecoderException
70      {
71          SearchRequestDecorator decorator = container.getMessage();
72  
73          TLV tlv = container.getCurrentTLV();
74  
75          // Store the value.
76          ExtensibleMatchFilter extensibleMatchFilter = ( ExtensibleMatchFilter ) decorator.getTerminalFilter();
77  
78          byte[] value = tlv.getValue().getData();
79          extensibleMatchFilter.setMatchValue( new BinaryValue( value ) );
80  
81          // unstack the filters if needed
82          decorator.unstackFilters( container );
83  
84          if ( IS_DEBUG )
85          {
86              LOG.debug( "Stored a match value : {}", value );
87          }
88      }
89  }