org.eclipse.tracecompass.tmf.ui/src/org/eclipse/linuxtools/internal/tmf/ui/project/handlers/DeleteExperimentHandler.java

   1 /*******************************************************************************
   2  * Copyright (c) 2009, 2014 Ericsson
   3  *
   4  * All rights reserved. This program and the accompanying materials are
   5  * made available under the terms of the Eclipse Public License v1.0 which
   6  * accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *   Francois Chouinard - Initial API and implementation
  11  *   Patrick Tasse - Close editors to release resources
  12  *******************************************************************************/
  13
  14 package org.eclipse.linuxtools.internal.tmf.ui.project.handlers;
  15
  16 import java.util.Iterator;
  17
  18 import org.eclipse.core.commands.AbstractHandler;
  19 import org.eclipse.core.commands.ExecutionEvent;
  20 import org.eclipse.core.commands.ExecutionException;
  21 import org.eclipse.core.resources.IResource;
  22 import org.eclipse.core.runtime.CoreException;
  23 import org.eclipse.core.runtime.IPath;
  24 import org.eclipse.jface.viewers.ISelection;
  25 import org.eclipse.jface.viewers.TreeSelection;
  26 import org.eclipse.linuxtools.internal.tmf.ui.Activator;
  27 import org.eclipse.linuxtools.tmf.ui.project.model.TmfExperimentElement;
  28 import org.eclipse.swt.SWT;
  29 import org.eclipse.swt.widgets.Display;
  30 import org.eclipse.swt.widgets.MessageBox;
  31 import org.eclipse.swt.widgets.Shell;
  32 import org.eclipse.ui.IWorkbenchPage;
  33 import org.eclipse.ui.IWorkbenchPart;
  34 import org.eclipse.ui.IWorkbenchWindow;
  35 import org.eclipse.ui.PlatformUI;
  36
  37 /**
  38  * <b><u>DeleteExperimentHandler</u></b>
  39  * <p>
  40  */
  41 public class DeleteExperimentHandler extends AbstractHandler {
  42
  43     // ------------------------------------------------------------------------
  44     // Execution
  45     // ------------------------------------------------------------------------
  46
  47     @Override
  48     public Object execute(ExecutionEvent event) throws ExecutionException {
  49
  50         // Check if we are closing down
  51         IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow();
  52         if (window == null) {
  53             return null;
  54         }
  55
  56         // Confirm the operation
  57         Shell shell = window.getShell();
  58         MessageBox confirmOperation = new MessageBox(shell, SWT.ICON_QUESTION | SWT.CANCEL | SWT.OK);
  59         confirmOperation.setText(Messages.DeleteDialog_Title);
  60         confirmOperation.setMessage(Messages.DeleteExperimentHandler_Message);
  61         if (confirmOperation.open() != SWT.OK) {
  62             return null;
  63         }
  64
  65         // Get the selection
  66         IWorkbenchPage page = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage();
  67         IWorkbenchPart part = page.getActivePart();
  68         if (part == null) {
  69             return Boolean.FALSE;
  70         }
  71         ISelection selection = part.getSite().getSelectionProvider().getSelection();
  72
  73         if (selection instanceof TreeSelection) {
  74             TreeSelection sel = (TreeSelection) selection;
  75             Iterator<Object> iterator = sel.iterator();
  76             while (iterator.hasNext()) {
  77                 Object element = iterator.next();
  78                 if (element instanceof TmfExperimentElement) {
  79                     final TmfExperimentElement experiment = (TmfExperimentElement) element;
  80                     IResource resource = experiment.getResource();
  81
  82                     try {
  83                         // Close the experiment if open
  84                         experiment.closeEditors();
  85
  86                         IPath path = resource.getLocation();
  87                         if (path != null) {
  88                             // Delete supplementary files
  89                             experiment.deleteSupplementaryFolder();
  90                         }
  91
  92                         // Finally, delete the experiment
  93                         resource.delete(true, null);
  94
  95                     } catch (final CoreException e) {
  96                         Display.getDefault().asyncExec(new Runnable() {
  97                             @Override
  98                             public void run() {
  99                                 final MessageBox mb = new MessageBox(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell());
 100                                 mb.setText(Messages.DeleteTraceHandler_Error + ' ' + experiment.getName());
 101                                 mb.setMessage(e.getMessage());
 102                                 mb.open();
 103                             }
 104                         });
 105                         Activator.getDefault().logError("Error deleting experiment: " + experiment.getName(), e); //$NON-NLS-1$
 106                     }
 107                 }
 108             }
 109         }
 110
 111         return null;
 112     }
 113 }