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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.compareResponse;
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.CompareResponseDecorator;
29  import org.apache.directory.api.ldap.model.message.CompareResponseImpl;
30  import org.slf4j.Logger;
31  import org.slf4j.LoggerFactory;
32  
33  
34  /**
35   * The action used to initialize the CompareResponse
36   * <pre>
37   * LdapMessage ::= ... CompareResponse ...
38   * CompareResponse ::= [APPLICATION 15] LDAPResult
39   * </pre>
40   * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
41   */
42  public class InitCompareResponse extends GrammarAction<LdapMessageContainer<CompareResponseDecorator>>
43  {
44      /** The logger */
45      private static final Logger LOG = LoggerFactory.getLogger( InitCompareResponse.class );
46  
47  
48      /**
49       * Instantiates a new action.
50       */
51      public InitCompareResponse()
52      {
53          super( "Compare Response initialization" );
54      }
55  
56  
57      /**
58       * {@inheritDoc}
59       */
60      public void action( LdapMessageContainer<CompareResponseDecorator> container ) throws DecoderException
61      {
62          // Now, we can allocate the CompareResponse Object
63          CompareResponseDecorator compareResponse = new CompareResponseDecorator(
64              container.getLdapCodecService(), new CompareResponseImpl( container.getMessageId() ) );
65          container.setMessage( compareResponse );
66  
67          // We will check that the request is not null
68          TLV tlv = container.getCurrentTLV();
69  
70          if ( tlv.getLength() == 0 )
71          {
72              String msg = I18n.err( I18n.ERR_04094 );
73              LOG.error( msg );
74              throw new DecoderException( msg );
75          }
76  
77          LOG.debug( "Compare response " );
78      }
79  }