PDEMoveParticipant


1   /*******************************************************************************
2    * Copyright (c) 2005, 2006 IBM Corporation and others.
3    * All rights reserved. This program and the accompanying materials
4    * are made available under the terms of the Eclipse Public License v1.0
5    * which accompanies this distribution, and is available at
6    * http://www.eclipse.org/legal/epl-v10.html
7    *
8    * Contributors:
9    *     IBM Corporation - initial API and implementation
10   *******************************************************************************/
11  package org.eclipse.pde.internal.ui.refactoring;
12  
13  import java.util.HashMap  ;
14  import java.util.Iterator  ;
15  
16  import org.eclipse.core.resources.IProject;
17  import org.eclipse.core.runtime.CoreException;
18  import org.eclipse.core.runtime.IProgressMonitor;
19  import org.eclipse.core.runtime.OperationCanceledException;
20  import org.eclipse.ltk.core.refactoring.Change;
21  import org.eclipse.ltk.core.refactoring.CompositeChange;
22  import org.eclipse.ltk.core.refactoring.RefactoringStatus;
23  import org.eclipse.ltk.core.refactoring.participants.CheckConditionsContext;
24  import org.eclipse.ltk.core.refactoring.participants.ISharableParticipant;
25  import org.eclipse.ltk.core.refactoring.participants.MoveArguments;
26  import org.eclipse.ltk.core.refactoring.participants.MoveParticipant;
27  import org.eclipse.ltk.core.refactoring.participants.RefactoringArguments;
28  
29  public abstract class PDEMoveParticipant extends MoveParticipant implements ISharableParticipant {
30  
31      protected IProject fProject;
32      protected HashMap   fElements;
33  
34      public RefactoringStatus checkConditions(IProgressMonitor pm,
35              CheckConditionsContext context) throws OperationCanceledException {
36          return new RefactoringStatus();
37      }
38      
39      public void addElement(Object   element, RefactoringArguments arguments) {
40          Object   destination = ((MoveArguments)arguments).getDestination();
41          fElements.put(element, getNewName(destination, element));
42      }
43  
44      public Change createChange(IProgressMonitor pm) throws CoreException,
45              OperationCanceledException {
46          CompositeChange result = new CompositeChange(getName());
47          addChange(result, pm);
48          if (isInterestingForExtensions()) {
49              addChange(result, "plugin.xml", pm); //$NON-NLS-1$
50              addChange(result, "fragment.xml", pm); //$NON-NLS-1$
51          }
52          return (result.getChildren().length == 0) ? null : result;
53      }
54      
55      protected abstract boolean isInterestingForExtensions();
56      
57      protected void addChange(CompositeChange result, String   filename, IProgressMonitor pm)
58          throws CoreException {      
59      }
60      
61      // add main change (whether to Manifest or build.properties)
62      protected void addChange(CompositeChange result, IProgressMonitor pm)
63          throws CoreException {
64      }
65      
66      protected String   getNewName(Object   destination, Object   element) {
67          return element.toString();
68      }
69      
70      protected String  [] getNewNames() {
71          String  [] result = new String  [fElements.size()];
72          Iterator   iter = fElements.values().iterator();
73          for (int i = 0; i < fElements.size(); i++)
74              result[i] = iter.next().toString();
75          return result;
76      }
77  
78  }
79
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