org.eclipse.tracecompass.tmf.core.tests/stubs/org/eclipse/linuxtools/tmf/tests/stubs/analysis/TestExperimentAnalysis.java

   1 /*******************************************************************************
   2  * Copyright (c) 2014 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  * Contributors:
  10  *   Geneviève Bastien - Initial API and implementation
  11  *******************************************************************************/
  12
  13 package org.eclipse.linuxtools.tmf.tests.stubs.analysis;
  14
  15 import java.util.HashSet;
  16 import java.util.Set;
  17
  18 import org.eclipse.linuxtools.statesystem.core.exceptions.AttributeNotFoundException;
  19 import org.eclipse.linuxtools.statesystem.core.exceptions.StateValueTypeException;
  20 import org.eclipse.linuxtools.statesystem.core.exceptions.TimeRangeException;
  21 import org.eclipse.linuxtools.statesystem.core.statevalue.TmfStateValue;
  22 import org.eclipse.linuxtools.tmf.core.event.ITmfEvent;
  23 import org.eclipse.linuxtools.tmf.core.event.TmfEvent;
  24 import org.eclipse.linuxtools.tmf.core.statesystem.AbstractTmfStateProvider;
  25 import org.eclipse.linuxtools.tmf.core.statesystem.ITmfStateProvider;
  26 import org.eclipse.linuxtools.tmf.core.statesystem.TmfStateSystemAnalysisModule;
  27 import org.eclipse.linuxtools.tmf.core.trace.ITmfTrace;
  28
  29 /**
  30  * Stubs for experiment analysis. This analysis is a state system analysis that
  31  * simply counts the number of traces for which events were received. The number
  32  * of traces is the value of attribute
  33  * {@link TestExperimentAnalysis#TRACE_QUARK_NAME}.
  34  *
  35  * @author Geneviève Bastien
  36  */
  37 public class TestExperimentAnalysis extends TmfStateSystemAnalysisModule {
  38
  39     /**
  40      * The quark counting the number of traces
  41      */
  42     public static final String TRACE_QUARK_NAME = "Traces";
  43
  44     @Override
  45     protected ITmfStateProvider createStateProvider() {
  46         return new TestExpStateSystemProvider(getTrace());
  47     }
  48
  49     @Override
  50     protected StateSystemBackendType getBackendType() {
  51         return StateSystemBackendType.INMEM;
  52     }
  53
  54     private class TestExpStateSystemProvider extends AbstractTmfStateProvider {
  55
  56         private static final int VERSION = 1;
  57         private final Set<ITmfTrace> fTraces = new HashSet<>();
  58         private int fCount = 0;
  59
  60         /**
  61          * Constructor
  62          *
  63          * @param trace
  64          *            The LTTng 2.0 kernel trace directory
  65          */
  66         public TestExpStateSystemProvider(ITmfTrace trace) {
  67             super(trace, TmfEvent.class, "Stub State System for Experiment");
  68         }
  69
  70         @Override
  71         public int getVersion() {
  72             return VERSION;
  73         }
  74
  75         @Override
  76         public ITmfStateProvider getNewInstance() {
  77             return new TestExpStateSystemProvider(this.getTrace());
  78         }
  79
  80         @Override
  81         protected void eventHandle(ITmfEvent event) {
  82             if (!fTraces.contains(event.getTrace())) {
  83                 try {
  84                     int quarkId = ss.getQuarkAbsoluteAndAdd(TRACE_QUARK_NAME);
  85                     ss.modifyAttribute(event.getTimestamp().getValue(), TmfStateValue.newValueInt(++fCount), quarkId);
  86                     fTraces.add(event.getTrace());
  87                 } catch (TimeRangeException | AttributeNotFoundException | StateValueTypeException e) {
  88
  89                 }
  90             }
  91         }
  92     }
  93 }