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

   1 /*******************************************************************************
   2  * Copyright (c) 2015 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  *   Marc-Andre Laperle - Initial API and implementation.
  11  *******************************************************************************/
  12 package org.eclipse.tracecompass.internal.tmf.ui.project.handlers;
  13
  14 import java.util.Iterator;
  15
  16 import org.eclipse.core.commands.AbstractHandler;
  17 import org.eclipse.core.commands.ExecutionEvent;
  18 import org.eclipse.core.commands.ExecutionException;
  19 import org.eclipse.jface.viewers.ISelection;
  20 import org.eclipse.jface.viewers.IStructuredSelection;
  21 import org.eclipse.tracecompass.tmf.core.event.ITmfEvent;
  22 import org.eclipse.tracecompass.tmf.core.signal.TmfTraceRangeUpdatedSignal;
  23 import org.eclipse.tracecompass.tmf.core.timestamp.TmfTimeRange;
  24 import org.eclipse.tracecompass.tmf.core.timestamp.TmfTimestamp;
  25 import org.eclipse.tracecompass.tmf.core.trace.ITmfTrace;
  26 import org.eclipse.tracecompass.tmf.ui.project.model.TmfTraceElement;
  27 import org.eclipse.tracecompass.tmf.ui.project.model.TmfTraceFolder;
  28 import org.eclipse.ui.handlers.HandlerUtil;
  29
  30 /**
  31  * Refresh the content of a trace in order to see new events.
  32  */
  33 public class RefreshTraceContentHandler extends AbstractHandler {
  34
  35     @Override
  36     public Object execute(ExecutionEvent event) throws ExecutionException {
  37
  38         // Get the selection
  39         ISelection selection = HandlerUtil.getCurrentSelection(event);
  40         if (!(selection instanceof IStructuredSelection)) {
  41             return null;
  42         }
  43         final Iterator<Object> iterator = ((IStructuredSelection) selection).iterator();
  44
  45         while (iterator.hasNext()) {
  46             Object element = iterator.next();
  47             if (element instanceof TmfTraceElement) {
  48                 TmfTraceElement trace = (TmfTraceElement) element;
  49                 refreshTrace(trace);
  50
  51             } else if (element instanceof TmfTraceFolder) {
  52                 TmfTraceFolder tmfTraceFolder = (TmfTraceFolder) element;
  53                 for (TmfTraceElement e : tmfTraceFolder.getTraces()) {
  54                     refreshTrace(e);
  55                 }
  56             } else if (element instanceof ITmfEvent) {
  57                 ITmfEvent iTmfEvent = (ITmfEvent) element;
  58                 refreshTrace(iTmfEvent.getTrace());
  59             }
  60         }
  61         return null;
  62     }
  63
  64     private static void refreshTrace(TmfTraceElement t) {
  65         final TmfTraceElement traceElement = t.getElementUnderTraceFolder();
  66         ITmfTrace trace = traceElement.getTrace();
  67         refreshTrace(trace);
  68     }
  69
  70     private static void refreshTrace(ITmfTrace trace) {
  71         TmfTimeRange range = new TmfTimeRange(TmfTimestamp.BIG_BANG, TmfTimestamp.BIG_CRUNCH);
  72         TmfTraceRangeUpdatedSignal signal = new TmfTraceRangeUpdatedSignal(trace, trace, range);
  73         trace.broadcastAsync(signal);
  74     }
  75
  76 }