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.core.trigger;
21  
22  
23  import org.apache.directory.server.core.CoreSession;
24  import org.apache.directory.server.core.entry.ClonedServerEntry;
25  import org.apache.directory.server.core.entry.ServerEntry;
26  import org.apache.directory.shared.ldap.name.LdapDN;
27  
28  import org.slf4j.Logger;
29  import org.slf4j.LoggerFactory;
30  
31  
32  /**
33   * An example of a stored procedures that backs up entries after a delete 
34   * operation.
35   *
36   * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
37   * @version $Rev$, $Date$
38   */
39  public class BackupUtilitiesSP
40  {
41      private static final Logger LOG = LoggerFactory.getLogger( BackupUtilitiesSP.class );
42  
43  
44      /**
45       * A stored procedure that backs up a deleted entry somewhere else in the DIT.
46       *
47       * @param session a session to use to perform changes to the DIT
48       * @param deletedEntry the entry that was deleted
49       * @throws Exception if there are failures
50       */
51      public static void backupDeleted( CoreSession session, ClonedServerEntry deletedEntry ) throws Exception
52      {
53          LOG.info( "User \"" + session.getEffectivePrincipal() + "\" has deleted entry \"" + deletedEntry + "\"" );
54          LdapDN backupDn = new LdapDN ( "ou=backupContext,ou=system" );
55          String deletedEntryRdn = deletedEntry.getDn().get( deletedEntry.getDn().size() - 1 );
56          ServerEntry entry = ( ServerEntry ) deletedEntry.getOriginalEntry().clone();
57          backupDn.add( deletedEntryRdn );
58          entry.setDn( backupDn );
59          session.add( deletedEntry );
60          LOG.info( "Backed up deleted entry to \"" + backupDn + "\"" );
61      }
62  }