| 1 | /********************************************************************** |
| 2 | * Copyright (c) 2016 École Polytechnique de Montréal |
| 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 | package org.eclipse.tracecompass.internal.analysis.os.linux.ui.views.kernelmemoryusage; |
| 10 | |
| 11 | import static org.eclipse.tracecompass.common.core.NonNullUtils.checkNotNull; |
| 12 | |
| 13 | import org.eclipse.jdt.annotation.NonNull; |
| 14 | import org.eclipse.jface.viewers.ISelection; |
| 15 | import org.eclipse.jface.viewers.ISelectionChangedListener; |
| 16 | import org.eclipse.jface.viewers.IStructuredSelection; |
| 17 | import org.eclipse.jface.viewers.SelectionChangedEvent; |
| 18 | import org.eclipse.swt.events.ControlAdapter; |
| 19 | import org.eclipse.swt.events.ControlEvent; |
| 20 | import org.eclipse.swt.widgets.Composite; |
| 21 | import org.eclipse.tracecompass.tmf.core.signal.TmfTraceSelectedSignal; |
| 22 | import org.eclipse.tracecompass.tmf.core.trace.ITmfTrace; |
| 23 | import org.eclipse.tracecompass.tmf.core.trace.TmfTraceContext; |
| 24 | import org.eclipse.tracecompass.tmf.core.trace.TmfTraceManager; |
| 25 | import org.eclipse.tracecompass.tmf.ui.viewers.TmfViewer; |
| 26 | import org.eclipse.tracecompass.tmf.ui.viewers.xycharts.TmfXYChartViewer; |
| 27 | import org.eclipse.tracecompass.tmf.ui.views.TmfChartView; |
| 28 | |
| 29 | /** |
| 30 | * Memory usage view |
| 31 | * |
| 32 | * @author Samuel Gagnon |
| 33 | * @author Mahdi Zolnouri |
| 34 | * @author Wassim Nasrallah |
| 35 | */ |
| 36 | public class KernelMemoryUsageView extends TmfChartView { |
| 37 | |
| 38 | /** ID string */ |
| 39 | public static final String ID = "org.eclipse.tracecompass.analysis.os.linux.ui.kernelmemoryusageview"; //$NON-NLS-1$ |
| 40 | /** ID of the Kernel Memory Usage view data in the data map of {@link TmfTraceContext} */ |
| 41 | public static final @NonNull String KERNEL_MEMORY = ID + ".KERNEL_MEMORY"; //$NON-NLS-1$ |
| 42 | |
| 43 | /* |
| 44 | * We need this reference to update the viewer when there is a new selection |
| 45 | */ |
| 46 | private KernelMemoryUsageTreeViewer fTreeViewerReference = null; |
| 47 | |
| 48 | /** |
| 49 | * Constructor |
| 50 | */ |
| 51 | public KernelMemoryUsageView() { |
| 52 | super(Messages.MemoryUsageView_title); |
| 53 | } |
| 54 | |
| 55 | @Override |
| 56 | protected TmfXYChartViewer createChartViewer(Composite parent) { |
| 57 | return new KernelMemoryUsageViewer(parent); |
| 58 | } |
| 59 | |
| 60 | private final class SelectionChangeListener implements ISelectionChangedListener { |
| 61 | @Override |
| 62 | public void selectionChanged(SelectionChangedEvent event) { |
| 63 | ISelection selection = event.getSelection(); |
| 64 | if (selection instanceof IStructuredSelection) { |
| 65 | Object structSelection = ((IStructuredSelection) selection).getFirstElement(); |
| 66 | if (structSelection instanceof KernelMemoryUsageEntry) { |
| 67 | KernelMemoryUsageEntry entry = (KernelMemoryUsageEntry) structSelection; |
| 68 | fTreeViewerReference.setSelectedThread(entry.getTid()); |
| 69 | ((KernelMemoryUsageViewer) getChartViewer()).setSelectedThread(entry.getTid()); |
| 70 | TmfTraceContext ctx = TmfTraceManager.getInstance().getCurrentTraceContext(); |
| 71 | ctx.setData(KERNEL_MEMORY, checkNotNull(entry.getTid())); |
| 72 | } |
| 73 | } |
| 74 | } |
| 75 | } |
| 76 | |
| 77 | @Override |
| 78 | protected @NonNull TmfViewer createLeftChildViewer(Composite parent) { |
| 79 | @NonNull |
| 80 | KernelMemoryUsageTreeViewer fTreeViewer = new KernelMemoryUsageTreeViewer(parent); |
| 81 | fTreeViewerReference = fTreeViewer; |
| 82 | |
| 83 | fTreeViewer.addSelectionChangeListener(new SelectionChangeListener()); |
| 84 | |
| 85 | /* Initialize the viewers with the currently selected trace */ |
| 86 | ITmfTrace trace = TmfTraceManager.getInstance().getActiveTrace(); |
| 87 | if (trace != null) { |
| 88 | TmfTraceSelectedSignal signal = new TmfTraceSelectedSignal(this, trace); |
| 89 | fTreeViewer.traceSelected(signal); |
| 90 | fTreeViewerReference.traceSelected(signal); |
| 91 | } |
| 92 | |
| 93 | fTreeViewer.getControl().addControlListener(new ControlAdapter() { |
| 94 | @Override |
| 95 | public void controlResized(ControlEvent e) { |
| 96 | super.controlResized(e); |
| 97 | } |
| 98 | }); |
| 99 | return fTreeViewer; |
| 100 | } |
| 101 | } |