001    /*
002     *  Licensed to the Apache Software Foundation (ASF) under one
003     *  or more contributor license agreements.  See the NOTICE file
004     *  distributed with this work for additional information
005     *  regarding copyright ownership.  The ASF licenses this file
006     *  to you under the Apache License, Version 2.0 (the
007     *  "License"); you may not use this file except in compliance
008     *  with the License.  You may obtain a copy of the License at
009     *  
010     *    http://www.apache.org/licenses/LICENSE-2.0
011     *  
012     *  Unless required by applicable law or agreed to in writing,
013     *  software distributed under the License is distributed on an
014     *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015     *  KIND, either express or implied.  See the License for the
016     *  specific language governing permissions and limitations
017     *  under the License. 
018     *  
019     */
020    package org.apache.directory.server.ldap.handlers;
021    
022    
023    import org.apache.directory.server.ldap.LdapSession;
024    import org.apache.directory.shared.ldap.message.InternalCompareRequest;
025    import org.apache.directory.shared.ldap.message.InternalLdapResult;
026    import org.apache.directory.shared.ldap.message.ResultCodeEnum;
027    import org.apache.directory.shared.ldap.name.LdapDN;
028    
029    import org.slf4j.Logger;
030    import org.slf4j.LoggerFactory;
031    
032    
033    /**
034     * A single reply handler for {@link InternalCompareRequest}s.
035     *
036     * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
037     * @version $Rev: 664302 $
038     */
039    public class CompareHandler extends LdapRequestHandler<InternalCompareRequest>
040    {
041        private static final Logger LOG = LoggerFactory.getLogger( CompareHandler.class );
042    
043        
044        /**
045         * @see ReferralAwareRequestHandler#handleIgnoringReferrals(LdapSession, LdapDN, 
046         * org.apache.directory.server.core.entry.ClonedServerEntry, 
047         * org.apache.directory.shared.ldap.message.SingleReplyRequest)
048         */
049        @Override
050        public void handle( LdapSession session, InternalCompareRequest req )
051        {
052            LOG.debug( "Handling compare request while ignoring referrals: {}", req );
053            InternalLdapResult result = req.getResultResponse().getLdapResult();
054            
055            try
056            {
057                if ( session.getCoreSession().compare( req ) )
058                {
059                    result.setResultCode( ResultCodeEnum.COMPARE_TRUE );
060                }
061                else
062                {
063                    result.setResultCode( ResultCodeEnum.COMPARE_FALSE );
064                }
065    
066                result.setMatchedDn( req.getName() );
067                session.getIoSession().write( req.getResultResponse() );
068            }
069            catch ( Exception e )
070            {
071                handleException( session, req, e );
072            }
073        }
074    }