lttng/org.eclipse.tracecompass.lttng2.ust.core/src/org/eclipse/tracecompass/internal/lttng2/ust/core/callstack/LttngUstCallStackAnalysisRequirement.java

   1 /*******************************************************************************
   2  * Copyright (c) 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 package org.eclipse.tracecompass.internal.lttng2.ust.core.callstack;
  10
  11 import static org.eclipse.tracecompass.common.core.NonNullUtils.nullToEmptyString;
  12
  13 import java.util.Collection;
  14 import java.util.Set;
  15
  16 import org.eclipse.jdt.annotation.NonNull;
  17 import org.eclipse.jdt.annotation.NonNullByDefault;
  18 import org.eclipse.tracecompass.lttng2.ust.core.trace.layout.ILttngUstEventLayout;
  19 import org.eclipse.tracecompass.tmf.core.analysis.requirements.TmfAbstractAnalysisRequirement;
  20 import org.eclipse.tracecompass.tmf.core.analysis.requirements.TmfAnalysisEventFieldRequirement;
  21 import org.eclipse.tracecompass.tmf.core.analysis.requirements.TmfCompositeAnalysisRequirement;
  22
  23 import com.google.common.collect.ImmutableSet;
  24
  25 /**
  26  * Analysis requirement implementation for LTTng Call Stack Analysis.
  27  *
  28  * @author Bernd Hufmann
  29  *
  30  */
  31 @NonNullByDefault
  32 public class LttngUstCallStackAnalysisRequirement extends TmfCompositeAnalysisRequirement {
  33
  34     /**
  35      * Constructor
  36      *
  37      * @param layout
  38      *            The event layout (non-null)
  39      */
  40     public LttngUstCallStackAnalysisRequirement(ILttngUstEventLayout layout) {
  41         super(getSubRequirements(layout), PriorityLevel.AT_LEAST_ONE);
  42
  43         addInformation(nullToEmptyString(Messages.LttnUstCallStackAnalysisModule_EventsLoadingInformation));
  44     }
  45
  46     private static Collection<TmfAbstractAnalysisRequirement> getSubRequirements(ILttngUstEventLayout layout) {
  47         Set<@NonNull String> requiredEventsFields = ImmutableSet.of(
  48                 layout.contextProcname(),
  49                 layout.contextVtid());
  50
  51         // Requirement for the cyg_profile events
  52         TmfAnalysisEventFieldRequirement entryReq = new TmfAnalysisEventFieldRequirement(
  53                 layout.eventCygProfileFuncEntry(),
  54                 requiredEventsFields,
  55                 PriorityLevel.MANDATORY);
  56
  57         TmfAbstractAnalysisRequirement exitReq = new TmfAnalysisEventFieldRequirement(
  58                 layout.eventCygProfileFuncExit(),
  59                 requiredEventsFields,
  60                 PriorityLevel.MANDATORY);
  61
  62         TmfAbstractAnalysisRequirement cygProfile = new TmfCompositeAnalysisRequirement(ImmutableSet.of(entryReq, exitReq), PriorityLevel.MANDATORY);
  63
  64         // Requirement for the cyg_profile_fast events
  65         entryReq = new TmfAnalysisEventFieldRequirement(
  66                 layout.eventCygProfileFastFuncEntry(),
  67                 requiredEventsFields,
  68                 PriorityLevel.MANDATORY);
  69
  70         exitReq = new TmfAnalysisEventFieldRequirement(
  71                 layout.eventCygProfileFastFuncExit(),
  72                 requiredEventsFields,
  73                 PriorityLevel.MANDATORY);
  74         TmfAbstractAnalysisRequirement cygProfileFast = new TmfCompositeAnalysisRequirement(ImmutableSet.of(entryReq, exitReq), PriorityLevel.MANDATORY);
  75
  76         return ImmutableSet.of(cygProfile, cygProfileFast);
  77     }
  78
  79 }