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1   /*
2    * Copyright (c) 2007, Peter Mika All rights reserved.
3    * 
4    * Redistribution and use in source and binary forms, with or without
5    * modification, are permitted provided that the following conditions are met:
6    * 
7    * - Redistributions of source code must retain the above copyright notice, this
8    *   list of conditions and the following disclaimer.
9    * - Redistributions in binary form must reproduce the above copyright notice,
10   *   this list of conditions and the following disclaimer in the documentation
11   *   and/or other materials provided with the distribution. 
12   * - Neither the name of the openrdf.org nor the names of its contributors may
13   *   be used to endorse or promote products derived from this software without
14   *   specific prior written permission.
15   * 
16   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19   * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
20   * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26   * POSSIBILITY OF SUCH DAMAGE.
27   * 
28   */
29  package org.openrdf.elmo.smusher;
30  
31  import java.util.ArrayList;
32  import java.util.List;
33  
34  import org.openrdf.OpenRDFException;
35  import org.openrdf.elmo.sesame.SesameManager;
36  import org.openrdf.elmo.smusher.listener.SmusherListener;
37  import org.openrdf.repository.RepositoryConnection;
38  
39  /** Abstract implementation of the Smusher interface
40   * 
41   * @author Peter Mika (pmika@cs.vu.nl)
42   *
43   */
44  public abstract class AbstractSmusher implements Smusher {
45  
46      protected List<SmusherListener> _listeners = new ArrayList<SmusherListener>();
47  
48      public AbstractSmusher() {
49          super();
50      }
51  
52      public void addListener(SmusherListener listener) {
53          if (listener != null) {
54              _listeners.add(listener);
55          }
56      }
57      
58      public void removeListener(SmusherListener listener) {
59          if (listener != null) {
60              _listeners.remove(listener);
61          }
62      }
63  
64      public void smush(SesameManager repository) throws OpenRDFException {
65         smush(repository, repository);
66     }
67  
68      public abstract void smush(SesameManager first, SesameManager second) throws OpenRDFException;
69  
70  }