analysis/org.eclipse.tracecompass.analysis.os.linux.ui/src/org/eclipse/tracecompass/internal/analysis/os/linux/ui/views/latency/statistics/SystemCallLatencyStatisticsViewer.java

   1 /*******************************************************************************
   2  * Copyright (c) 2015 Ericsson
   3  *
   4  * All rights reserved. This program and the accompanying materials are made
   5  * 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  *     Bernd Hufmann - Initial API and implementation
  11  *******************************************************************************/
  12 package org.eclipse.tracecompass.internal.analysis.os.linux.ui.views.latency.statistics;
  13
  14 import static org.eclipse.tracecompass.common.core.NonNullUtils.checkNotNull;
  15
  16 import java.util.List;
  17 import java.util.Map;
  18 import java.util.Map.Entry;
  19
  20 import org.eclipse.jdt.annotation.Nullable;
  21 import org.eclipse.swt.widgets.Composite;
  22 import org.eclipse.tracecompass.internal.analysis.os.linux.core.latency.statistics.SystemCallLatencyStatisticsAnalysisModule;
  23 import org.eclipse.tracecompass.internal.analysis.timing.core.segmentstore.statistics.SegmentStoreStatistics;
  24 import org.eclipse.tracecompass.internal.analysis.timing.ui.views.segmentstore.statistics.AbstractSegmentStoreStatisticsViewer;
  25 import org.eclipse.tracecompass.tmf.core.analysis.TmfAbstractAnalysisModule;
  26 import org.eclipse.tracecompass.tmf.ui.viewers.tree.ITmfTreeViewerEntry;
  27 import org.eclipse.tracecompass.tmf.ui.viewers.tree.TmfTreeViewerEntry;
  28
  29 /**
  30  * A tree viewer implementation for displaying latency statistics
  31  *
  32  * @author Bernd Hufmann
  33  *
  34  */
  35 public class SystemCallLatencyStatisticsViewer extends AbstractSegmentStoreStatisticsViewer {
  36
  37     private static final String SYSCALL_LEVEL = checkNotNull(Messages.LatencyStatistics_SyscallLevelName);
  38
  39     /**
  40      * Constructor
  41      *
  42      * @param parent
  43      *            the parent composite
  44      */
  45     public SystemCallLatencyStatisticsViewer(Composite parent) {
  46         super(parent);
  47     }
  48
  49     /**
  50      * Gets the statistics analysis module
  51      *
  52      * @return the statistics analysis module
  53      */
  54     @Override
  55     protected @Nullable TmfAbstractAnalysisModule createStatisticsAnalysiModule() {
  56         SystemCallLatencyStatisticsAnalysisModule module = new SystemCallLatencyStatisticsAnalysisModule();
  57         return module;
  58     }
  59
  60     @Override
  61     protected @Nullable ITmfTreeViewerEntry updateElements(long start, long end, boolean isSelection) {
  62         if (isSelection || (start == end)) {
  63             return null;
  64         }
  65
  66         TmfAbstractAnalysisModule analysisModule = getStatisticsAnalysisModule();
  67
  68         if (getTrace() == null || !(analysisModule instanceof SystemCallLatencyStatisticsAnalysisModule)) {
  69             return null;
  70         }
  71
  72         SystemCallLatencyStatisticsAnalysisModule module = (SystemCallLatencyStatisticsAnalysisModule) analysisModule;
  73
  74         module.waitForCompletion();
  75
  76         TmfTreeViewerEntry root = new TmfTreeViewerEntry(""); //$NON-NLS-1$
  77         final SegmentStoreStatistics entry = module.getTotalStats();
  78         if (entry != null) {
  79
  80             List<ITmfTreeViewerEntry> entryList = root.getChildren();
  81
  82             TmfTreeViewerEntry child = new SegmentStoreStatisticsEntry(checkNotNull(Messages.LatencyStatistics_TotalLabel), entry);
  83             entryList.add(child);
  84             HiddenTreeViewerEntry syscalls = new HiddenTreeViewerEntry(SYSCALL_LEVEL);
  85             child.addChild(syscalls);
  86
  87             Map<String, SegmentStoreStatistics> perSyscallStats = module.getPerSegmentTypeStats();
  88             if (perSyscallStats != null) {
  89                 for (Entry<String, SegmentStoreStatistics> statsEntry : perSyscallStats.entrySet()) {
  90                     syscalls.addChild(new SegmentStoreStatisticsEntry(statsEntry.getKey(), statsEntry.getValue()));
  91                 }
  92             }
  93         }
  94         return root;
  95     }
  96
  97 }