ModelUpdateOperation


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.team.internal.ccvs.ui.mappings;
12  
13  import java.util.ArrayList  ;
14  import java.util.List  ;
15  
16  import org.eclipse.core.resources.IResource;
17  import org.eclipse.core.resources.ResourcesPlugin;
18  import org.eclipse.core.resources.mapping.ResourceMapping;
19  import org.eclipse.core.runtime.*;
20  import org.eclipse.team.core.mapping.ISynchronizationContext;
21  import org.eclipse.team.core.mapping.provider.SynchronizationContext;
22  import org.eclipse.team.core.subscribers.SubscriberScopeManager;
23  import org.eclipse.team.internal.ccvs.core.CVSProviderPlugin;
24  import org.eclipse.team.internal.ccvs.core.ICVSResource;
25  import org.eclipse.team.internal.ccvs.core.client.PruneFolderVisitor;
26  import org.eclipse.team.internal.ccvs.core.resources.CVSWorkspaceRoot;
27  import org.eclipse.team.internal.ccvs.ui.*;
28  import org.eclipse.team.internal.core.mapping.CompoundResourceTraversal;
29  import org.eclipse.team.ui.synchronize.ModelSynchronizeParticipant;
30  import org.eclipse.ui.IWorkbenchPart;
31  
32  public class ModelUpdateOperation extends AbstractModelMergeOperation {
33      
34      public ModelUpdateOperation(IWorkbenchPart targetPart, ResourceMapping[] selectedResourceMappings, boolean consultModels) {
35          this(targetPart, WorkspaceSubscriberContext.createUpdateScopeManager(selectedResourceMappings, consultModels));
36      }
37      
38      public ModelUpdateOperation(IWorkbenchPart targetPart, ResourceMapping[] resourceMappings) {
39          this(targetPart, resourceMappings, true);
40      }
41  
42      public ModelUpdateOperation(IWorkbenchPart targetPart, SubscriberScopeManager manager) {
43          super(targetPart, manager, true);
44      }
45  
46      /* (non-Javadoc)
47       * @see org.eclipse.team.ui.TeamOperation#getJobName()
48       */
49      protected String   getJobName() {
50          return CVSUIMessages.UpdateOperation_taskName;
51      }
52      
53      /* (non-Javadoc)
54       * @see org.eclipse.team.ui.operations.ResourceMappingOperation#isPreviewRequested()
55       */
56      public boolean isPreviewRequested() {
57          return super.isPreviewRequested() || !isAttemptHeadlessMerge();
58      }
59  
60      protected boolean isAttemptHeadlessMerge() {
61          return CVSUIPlugin.getPlugin().getPreferenceStore().getString(ICVSUIConstants.PREF_UPDATE_HANDLING).equals(ICVSUIConstants.PREF_UPDATE_HANDLING_PERFORM);
62      }
63  
64      /**
65       * Return the merge type associated with this operation.
66       * @return the merge type associated with this operation
67       */
68      protected int getMergeType() {
69          return ISynchronizationContext.THREE_WAY;
70      }
71      
72      /* (non-Javadoc)
73       * @see org.eclipse.team.ui.operations.ResourceMappingMergeOperation#createParticipant()
74       */
75      protected ModelSynchronizeParticipant createParticipant() {
76          return new WorkspaceModelParticipant(createMergeContext());
77      }
78  
79      /* (non-Javadoc)
80       * @see org.eclipse.team.ui.operations.ModelParticipantMergeOperation#createMergeContext()
81       */
82      protected SynchronizationContext createMergeContext() {
83          return WorkspaceSubscriberContext.createContext(getScopeManager(), getMergeType());
84      }
85      
86      protected void executeMerge(IProgressMonitor monitor) throws CoreException {
87          super.executeMerge(monitor);
88          // Prune any empty folders within the traversals
89          if (CVSProviderPlugin.getPlugin().getPruneEmptyDirectories()) {
90              CompoundResourceTraversal ct = new CompoundResourceTraversal();
91              ct.addTraversals(getContext().getScope().getTraversals());
92              IResource[] roots = ct.getRoots();
93              List   cvsResources = new ArrayList  ();
94              for (int i = 0; i < roots.length; i++) {
95                  IResource resource = roots[i];
96                  if (resource.getProject().isAccessible()) {
97                      cvsResources.add(CVSWorkspaceRoot.getCVSResourceFor(roots[i]));
98                  }
99              }
100             new PruneFolderVisitor().visit(
101                 CVSWorkspaceRoot.getCVSFolderFor(ResourcesPlugin.getWorkspace().getRoot()),
102                 (ICVSResource[]) cvsResources.toArray(new ICVSResource[cvsResources.size()]));
103         }
104     }
105 }
106
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