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

   1 /*******************************************************************************
   2  * Copyright (c) 2009, 2010, 2011 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  *******************************************************************************/
  12
  13 package org.eclipse.linuxtools.internal.tmf.ui.project.handlers;
  14
  15 import java.util.Iterator;
  16
  17 import org.eclipse.core.commands.AbstractHandler;
  18 import org.eclipse.core.commands.ExecutionEvent;
  19 import org.eclipse.core.commands.ExecutionException;
  20 import org.eclipse.core.resources.IFile;
  21 import org.eclipse.core.resources.IResource;
  22 import org.eclipse.core.runtime.CoreException;
  23 import org.eclipse.jface.viewers.ISelection;
  24 import org.eclipse.jface.viewers.TreeSelection;
  25 import org.eclipse.linuxtools.internal.tmf.ui.Activator;
  26 import org.eclipse.linuxtools.tmf.ui.project.model.TmfExperimentElement;
  27 import org.eclipse.swt.SWT;
  28 import org.eclipse.swt.widgets.Display;
  29 import org.eclipse.swt.widgets.MessageBox;
  30 import org.eclipse.swt.widgets.Shell;
  31 import org.eclipse.ui.IEditorReference;
  32 import org.eclipse.ui.IWorkbench;
  33 import org.eclipse.ui.IWorkbenchPage;
  34 import org.eclipse.ui.IWorkbenchPart;
  35 import org.eclipse.ui.IWorkbenchWindow;
  36 import org.eclipse.ui.PlatformUI;
  37 import org.eclipse.ui.part.FileEditorInput;
  38
  39 /**
  40  * <b><u>DeleteExperimentHandler</u></b>
  41  * <p>
  42  */
  43 public class DeleteExperimentHandler extends AbstractHandler {
  44
  45     // ------------------------------------------------------------------------
  46     // Execution
  47     // ------------------------------------------------------------------------
  48
  49     @Override
  50     public Object execute(ExecutionEvent event) throws ExecutionException {
  51
  52         // Check if we are closing down
  53         IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow();
  54         if (window == null) {
  55             return null;
  56         }
  57
  58         // Confirm the operation
  59         Shell shell = window.getShell();
  60         MessageBox confirmOperation = new MessageBox(shell, SWT.ICON_QUESTION | SWT.CANCEL | SWT.OK);
  61         confirmOperation.setText(Messages.DeleteDialog_Title);
  62         confirmOperation.setMessage(Messages.DeleteExperimentHandler_Message);
  63         if (confirmOperation.open() != SWT.OK) {
  64             return null;
  65         }
  66
  67         // Get the selection
  68         IWorkbenchPage page = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage();
  69         IWorkbenchPart part = page.getActivePart();
  70         if (part == null) {
  71             return false;
  72         }
  73         ISelection selection = part.getSite().getSelectionProvider().getSelection();
  74
  75         if (selection instanceof TreeSelection) {
  76             TreeSelection sel = (TreeSelection) selection;
  77             Iterator<Object> iterator = sel.iterator();
  78             while (iterator.hasNext()) {
  79                 Object element = iterator.next();
  80                 if (element instanceof TmfExperimentElement) {
  81                     final TmfExperimentElement experiment = (TmfExperimentElement) element;
  82                     IResource resource = experiment.getResource();
  83
  84                     try {
  85                         // Close the experiment if open
  86                         IFile file = experiment.getBookmarksFile();
  87                         FileEditorInput input = new FileEditorInput(file);
  88                         IWorkbench wb = PlatformUI.getWorkbench();
  89                         for (IWorkbenchWindow wbWindow : wb.getWorkbenchWindows()) {
  90                             for (IWorkbenchPage wbPage : wbWindow.getPages()) {
  91                                 for (IEditorReference editorReference : wbPage.getEditorReferences()) {
  92                                     if (editorReference.getEditorInput().equals(input)) {
  93                                         wbPage.closeEditor(editorReference.getEditor(false), false);
  94                                     }
  95                                 }
  96                             }
  97                         }
  98
  99                         // Finally, delete the experiment
 100                         resource.delete(true, null);
 101
 102                         // Refresh the project
 103                         experiment.getProject().refresh();
 104
 105                     } catch (final CoreException e) {
 106                         Display.getDefault().asyncExec(new Runnable() {
 107                             @Override
 108                             public void run() {
 109                                 final MessageBox mb = new MessageBox(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell());
 110                                 mb.setText(Messages.DeleteTraceHandler_Error + ' ' + experiment.getName());
 111                                 mb.setMessage(e.getMessage());
 112                                 mb.open();
 113                             }
 114                         });
 115                         Activator.getDefault().logError("Error deleting experiment: " + experiment.getName(), e); //$NON-NLS-1$
 116                     }
 117                 }
 118             }
 119         }
 120
 121         return null;
 122     }
 123 }