| 1 | /******************************************************************************* |
| 2 | * Copyright (c) 2014, 2015 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.tracecompass.tmf.tests.stubs.analysis; |
| 14 | |
| 15 | import static org.eclipse.tracecompass.common.core.NonNullUtils.checkNotNull; |
| 16 | |
| 17 | import java.util.HashSet; |
| 18 | import java.util.Set; |
| 19 | |
| 20 | import org.eclipse.jdt.annotation.NonNull; |
| 21 | import org.eclipse.tracecompass.statesystem.core.ITmfStateSystemBuilder; |
| 22 | import org.eclipse.tracecompass.statesystem.core.exceptions.AttributeNotFoundException; |
| 23 | import org.eclipse.tracecompass.statesystem.core.exceptions.StateValueTypeException; |
| 24 | import org.eclipse.tracecompass.statesystem.core.exceptions.TimeRangeException; |
| 25 | import org.eclipse.tracecompass.statesystem.core.statevalue.TmfStateValue; |
| 26 | import org.eclipse.tracecompass.tmf.core.event.ITmfEvent; |
| 27 | import org.eclipse.tracecompass.tmf.core.statesystem.AbstractTmfStateProvider; |
| 28 | import org.eclipse.tracecompass.tmf.core.statesystem.ITmfStateProvider; |
| 29 | import org.eclipse.tracecompass.tmf.core.statesystem.TmfStateSystemAnalysisModule; |
| 30 | import org.eclipse.tracecompass.tmf.core.trace.ITmfTrace; |
| 31 | |
| 32 | /** |
| 33 | * Stubs for experiment analysis. This analysis is a state system analysis that |
| 34 | * simply counts the number of traces for which events were received. The number |
| 35 | * of traces is the value of attribute |
| 36 | * {@link TestExperimentAnalysis#TRACE_QUARK_NAME}. |
| 37 | * |
| 38 | * @author Geneviève Bastien |
| 39 | */ |
| 40 | public class TestExperimentAnalysis extends TmfStateSystemAnalysisModule { |
| 41 | |
| 42 | /** |
| 43 | * The quark counting the number of traces |
| 44 | */ |
| 45 | public static final String TRACE_QUARK_NAME = "Traces"; |
| 46 | |
| 47 | @Override |
| 48 | protected ITmfStateProvider createStateProvider() { |
| 49 | return new TestExpStateSystemProvider(checkNotNull(getTrace())); |
| 50 | } |
| 51 | |
| 52 | @Override |
| 53 | protected StateSystemBackendType getBackendType() { |
| 54 | return StateSystemBackendType.INMEM; |
| 55 | } |
| 56 | |
| 57 | private class TestExpStateSystemProvider extends AbstractTmfStateProvider { |
| 58 | |
| 59 | private static final int VERSION = 1; |
| 60 | private final Set<ITmfTrace> fTraces = new HashSet<>(); |
| 61 | private int fCount = 0; |
| 62 | |
| 63 | /** |
| 64 | * Constructor |
| 65 | * |
| 66 | * @param trace |
| 67 | * The LTTng 2.0 kernel trace directory |
| 68 | */ |
| 69 | public TestExpStateSystemProvider(@NonNull ITmfTrace trace) { |
| 70 | super(trace, "Stub State System for Experiment"); |
| 71 | } |
| 72 | |
| 73 | @Override |
| 74 | public int getVersion() { |
| 75 | return VERSION; |
| 76 | } |
| 77 | |
| 78 | @Override |
| 79 | public ITmfStateProvider getNewInstance() { |
| 80 | return new TestExpStateSystemProvider(this.getTrace()); |
| 81 | } |
| 82 | |
| 83 | @Override |
| 84 | protected void eventHandle(ITmfEvent event) { |
| 85 | ITmfStateSystemBuilder ss = checkNotNull(getStateSystemBuilder()); |
| 86 | if (!fTraces.contains(event.getTrace())) { |
| 87 | try { |
| 88 | int quarkId = ss.getQuarkAbsoluteAndAdd(TRACE_QUARK_NAME); |
| 89 | ss.modifyAttribute(event.getTimestamp().getValue(), TmfStateValue.newValueInt(++fCount), quarkId); |
| 90 | fTraces.add(event.getTrace()); |
| 91 | } catch (TimeRangeException | AttributeNotFoundException | StateValueTypeException e) { |
| 92 | |
| 93 | } |
| 94 | } |
| 95 | } |
| 96 | } |
| 97 | } |