org.eclipse.linuxtools.tmf.ui/src/org/eclipse/linuxtools/tmf/ui/views/project/handlers/SelectParserHandler.java

   1 /*******************************************************************************
   2  * Copyright (c) 2010 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  *   Patrick Tasse - Initial API and implementation
  11  *******************************************************************************/
  12
  13 package org.eclipse.linuxtools.tmf.ui.views.project.handlers;
  14
  15 import org.eclipse.core.commands.AbstractHandler;
  16 import org.eclipse.core.commands.ExecutionEvent;
  17 import org.eclipse.core.commands.ExecutionException;
  18 import org.eclipse.core.resources.IResource;
  19 import org.eclipse.core.runtime.CoreException;
  20 import org.eclipse.jface.viewers.ISelection;
  21 import org.eclipse.jface.viewers.StructuredSelection;
  22 import org.eclipse.linuxtools.tmf.event.TmfEvent;
  23 import org.eclipse.linuxtools.tmf.experiment.TmfExperiment;
  24 import org.eclipse.linuxtools.tmf.signal.TmfExperimentSelectedSignal;
  25 import org.eclipse.linuxtools.tmf.signal.TmfTraceParserUpdatedSignal;
  26 import org.eclipse.linuxtools.tmf.trace.ITmfTrace;
  27 import org.eclipse.linuxtools.tmf.ui.parsers.ParserProviderManager;
  28 import org.eclipse.linuxtools.tmf.ui.views.project.ProjectView;
  29 import org.eclipse.linuxtools.tmf.ui.views.project.model.TmfExperimentNode;
  30 import org.eclipse.linuxtools.tmf.ui.views.project.model.TmfTraceNode;
  31 import org.eclipse.ui.IWorkbenchPage;
  32 import org.eclipse.ui.IWorkbenchWindow;
  33 import org.eclipse.ui.PlatformUI;
  34
  35 /**
  36  * <b><u>OpenTraceHandler</u></b>
  37  * <p>
  38  */
  39 public class SelectParserHandler extends AbstractHandler {
  40
  41     private TmfTraceNode fTrace = null;
  42     private ProjectView fProjectView = null;
  43
  44     // ------------------------------------------------------------------------
  45     // Validation
  46     // ------------------------------------------------------------------------
  47
  48         @Override
  49     public boolean isEnabled() {
  50
  51         // Check if we are closing down
  52         IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow();
  53         if (window == null)
  54             return false;
  55
  56         // Check if a trace is selected
  57         IWorkbenchPage page = window.getActivePage();
  58         if (!(page.getActivePart() instanceof ProjectView))
  59             return false;
  60         fProjectView = (ProjectView) page.getActivePart();
  61
  62         // Check if a trace is selected
  63         ISelection selection = page.getSelection(ProjectView.ID);
  64         if (selection instanceof StructuredSelection) {
  65             Object element = ((StructuredSelection) selection).getFirstElement();
  66             fTrace = (element instanceof TmfTraceNode) ? (TmfTraceNode) element : null;
  67         }
  68
  69         return (fTrace != null);
  70     }
  71
  72     // ------------------------------------------------------------------------
  73     // Execution
  74     // ------------------------------------------------------------------------
  75
  76     @Override
  77         @SuppressWarnings("unchecked")
  78         public Object execute(ExecutionEvent event) throws ExecutionException {
  79         IResource resource = fTrace.getResource();
  80         if (fTrace.getParent() instanceof TmfExperimentNode) {
  81             resource = fTrace.getProject().getTracesFolder().getTraceForLocation(resource.getLocation()).getResource();
  82         }
  83         String parser = event.getParameter("org.eclipse.linuxtools.tmf.ui.commandparameter.project.trace.selectparser.parser");
  84         try {
  85             resource.setPersistentProperty(ParserProviderManager.PARSER_PROPERTY, parser);
  86             fProjectView.broadcast(new TmfTraceParserUpdatedSignal(fProjectView, resource));
  87             fTrace.getProject().refresh();
  88
  89             TmfExperiment<TmfEvent> currentExperiment = (TmfExperiment<TmfEvent>) TmfExperiment.getCurrentExperiment();
  90             if (currentExperiment != null) {
  91                 for (int i = 0; i < currentExperiment.getTraces().length; i++) {
  92                     ITmfTrace trace = currentExperiment.getTraces()[i];
  93                     if (resource.getLocation().toOSString().equals(trace.getPath())) {
  94                         ITmfTrace newTrace = ParserProviderManager.getTrace(resource);
  95                         if (newTrace != null) {
  96                             currentExperiment.getTraces()[i] = newTrace;
  97                             fProjectView.broadcast(new TmfExperimentSelectedSignal<TmfEvent>(new Object(), currentExperiment));
  98                         }
  99                     }
 100                 }
 101             }
 102         } catch (CoreException e) {
 103             e.printStackTrace();
 104         }
 105         return null;
 106     }
 107
 108 }