lttng/org.eclipse.tracecompass.lttng2.ust.ui/src/org/eclipse/tracecompass/lttng2/ust/ui/analysis/callstack/LttngUstCallStackAnalysis.java

   1 /*******************************************************************************
   2  * Copyright (c) 2014, 2016 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  *   Alexandre Montplaisir - Initial API and implementation
  11  *   Bernd Hufmann - Added analysis requirements
  12  *******************************************************************************/
  13
  14 package org.eclipse.tracecompass.lttng2.ust.ui.analysis.callstack;
  15
  16 import static org.eclipse.tracecompass.common.core.NonNullUtils.checkNotNull;
  17
  18 import java.util.Set;
  19
  20 import org.eclipse.jdt.annotation.NonNull;
  21 import org.eclipse.jdt.annotation.Nullable;
  22 import org.eclipse.tracecompass.internal.lttng2.ust.core.callstack.LttngUstCallStackProvider;
  23 import org.eclipse.tracecompass.internal.lttng2.ust.ui.analysis.callstack.LttngUstCallStackAnalysisRequirement;
  24 import org.eclipse.tracecompass.lttng2.ust.core.trace.LttngUstTrace;
  25 import org.eclipse.tracecompass.lttng2.ust.core.trace.layout.ILttngUstEventLayout;
  26 import org.eclipse.tracecompass.tmf.core.analysis.requirements.TmfAbstractAnalysisRequirement;
  27 import org.eclipse.tracecompass.tmf.core.exceptions.TmfAnalysisException;
  28 import org.eclipse.tracecompass.tmf.core.statesystem.ITmfStateProvider;
  29 import org.eclipse.tracecompass.tmf.core.trace.ITmfTrace;
  30 import org.eclipse.tracecompass.tmf.ui.views.callstack.AbstractCallStackAnalysis;
  31
  32 import com.google.common.collect.ImmutableSet;
  33
  34 /**
  35  * Call-stack analysis to populate the TMF CallStack View from UST cyg-profile
  36  * events.
  37  *
  38  * @author Alexandre Montplaisir
  39  */
  40 public class LttngUstCallStackAnalysis extends AbstractCallStackAnalysis {
  41
  42     /**
  43      * ID
  44      *
  45      * @since 2.0
  46      */
  47     public static final String ID = "org.eclipse.linuxtools.lttng2.ust.analysis.callstack"; //$NON-NLS-1$
  48
  49     private @Nullable Set<@NonNull TmfAbstractAnalysisRequirement> fAnalysisRequirements = null;
  50
  51     /**
  52      * @since 1.0
  53      */
  54     @Override
  55     public boolean setTrace(ITmfTrace trace) throws TmfAnalysisException {
  56         if (!(trace instanceof LttngUstTrace)) {
  57             return false;
  58         }
  59         return super.setTrace(trace);
  60     }
  61
  62     @Override
  63     protected LttngUstTrace getTrace() {
  64         return (LttngUstTrace) super.getTrace();
  65     }
  66
  67     @Override
  68     protected ITmfStateProvider createStateProvider() {
  69         return new LttngUstCallStackProvider(checkNotNull(getTrace()));
  70     }
  71
  72     @Override
  73     public @NonNull Iterable<@NonNull TmfAbstractAnalysisRequirement> getAnalysisRequirements() {
  74
  75         Set<@NonNull TmfAbstractAnalysisRequirement> requirements = fAnalysisRequirements;
  76         if (requirements == null) {
  77             LttngUstTrace trace = getTrace();
  78             ILttngUstEventLayout layout = ILttngUstEventLayout.DEFAULT_LAYOUT;
  79             if (trace != null) {
  80                 layout = trace.getEventLayout();
  81             }
  82             requirements = ImmutableSet.of(new LttngUstCallStackAnalysisRequirement(layout));
  83             fAnalysisRequirements = requirements;
  84         }
  85         return requirements;
  86     }
  87
  88 }