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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.server.ldap.handlers;
21  
22  
23  import org.apache.directory.server.core.entry.ClonedServerEntry;
24  import org.apache.directory.server.ldap.LdapSession;
25  import org.apache.directory.shared.ldap.message.CompareRequest;
26  import org.apache.directory.shared.ldap.message.LdapResult;
27  import org.apache.directory.shared.ldap.message.ResultCodeEnum;
28  import org.apache.directory.shared.ldap.name.LdapDN;
29  
30  import org.slf4j.Logger;
31  import org.slf4j.LoggerFactory;
32  
33  
34  /**
35   * A single reply handler for {@link CompareRequest}s.
36   *
37   * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
38   * @version $Rev: 664302 $
39   */
40  public class CompareHandler extends ReferralAwareRequestHandler<CompareRequest>
41  {
42      private static final Logger LOG = LoggerFactory.getLogger( CompareHandler.class );
43  
44      
45      /**
46       * @see ReferralAwareRequestHandler#handleIgnoringReferrals(LdapSession, LdapDN, 
47       * org.apache.directory.server.core.entry.ClonedServerEntry, 
48       * org.apache.directory.shared.ldap.message.SingleReplyRequest)
49       */
50      @Override
51      public void handleIgnoringReferrals( LdapSession session, LdapDN reqTargetDn, 
52          ClonedServerEntry entry, CompareRequest req )
53      {
54          LOG.debug( "Handling compare request while ignoring referrals: {}", req );
55          LdapResult result = req.getResultResponse().getLdapResult();
56          
57          try
58          {
59              if ( session.getCoreSession().compare( req ) )
60              {
61                  result.setResultCode( ResultCodeEnum.COMPARE_TRUE );
62              }
63              else
64              {
65                  result.setResultCode( ResultCodeEnum.COMPARE_FALSE );
66              }
67  
68              result.setMatchedDn( reqTargetDn );
69              session.getIoSession().write( req.getResultResponse() );
70          }
71          catch ( Exception e )
72          {
73              handleException( session, req, e );
74          }
75      }
76  }