/*******************************************************************************
* Copyright (c) 2013, 2014 École Polytechnique de Montréal
*
* All rights reserved. This program and the accompanying materials are made
* available under the terms of the Eclipse Public License v1.0 which
* accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Geneviève Bastien - Initial implementation
*******************************************************************************/
package org.eclipse.tracecompass.lttng2.kernel.core.tests.event.matchandsync;
import static org.junit.Assert.assertEquals;
import java.util.concurrent.TimeUnit;
import org.eclipse.tracecompass.internal.lttng2.kernel.core.event.matching.TcpEventMatching;
import org.eclipse.tracecompass.internal.lttng2.kernel.core.event.matching.TcpLttngEventMatching;
import org.eclipse.tracecompass.testtraces.ctf.CtfTestTrace;
import org.eclipse.tracecompass.tmf.core.event.matching.TmfEventMatching;
import org.eclipse.tracecompass.tmf.core.synchronization.ITmfTimestampTransform;
import org.eclipse.tracecompass.tmf.core.synchronization.SynchronizationAlgorithm;
import org.eclipse.tracecompass.tmf.core.synchronization.TimestampTransformFactory;
import org.eclipse.tracecompass.tmf.core.trace.ITmfTrace;
import org.eclipse.tracecompass.tmf.core.trace.experiment.TmfExperiment;
import org.eclipse.tracecompass.tmf.ctf.core.tests.shared.CtfTmfTestTraceUtils;
import org.eclipse.tracecompass.tmf.ctf.core.trace.CtfTmfTrace;
import org.junit.BeforeClass;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.TestRule;
import org.junit.rules.Timeout;
/**
* Tests for experiment syncing
*
* @author Geneviève Bastien
*/
@SuppressWarnings("nls")
public class ExperimentSyncTest {
/** Timeout the tests after 2 minutes */
@Rule
public TestRule timeoutRule = new Timeout(2, TimeUnit.MINUTES);
private static final String EXPERIMENT = "MyExperiment";
private static int BLOCK_SIZE = 1000;
/**
* Initialize some data
*/
@BeforeClass
public static void setUp() {
TmfEventMatching.registerMatchObject(new TcpEventMatching());
TmfEventMatching.registerMatchObject(new TcpLttngEventMatching());
}
/**
* Testing experiment synchronization
*/
@Test
public void testExperimentSync() {
CtfTmfTrace trace1 = CtfTmfTestTraceUtils.getTrace(CtfTestTrace.SYNC_SRC);
CtfTmfTrace trace2 = CtfTmfTestTraceUtils.getTrace(CtfTestTrace.SYNC_DEST);
ITmfTrace[] traces = { trace1, trace2 };
TmfExperiment experiment = new TmfExperiment(traces[0].getEventType(), EXPERIMENT, traces, BLOCK_SIZE, null);
SynchronizationAlgorithm syncAlgo = experiment.synchronizeTraces(true);
ITmfTimestampTransform tt1 = syncAlgo.getTimestampTransform(trace1);
ITmfTimestampTransform tt2 = syncAlgo.getTimestampTransform(trace2);
trace1.setTimestampTransform(tt1);
trace2.setTimestampTransform(tt2);
assertEquals("TmfTimestampTransformLinearFast [ slope = 0.9999413783703139011056845831168394, offset = 79796507913179.33347660124688298171 ]", tt1.toString());
assertEquals(TimestampTransformFactory.getDefaultTransform(), tt2);
assertEquals(syncAlgo.getTimestampTransform(trace1.getHostId()), trace1.getTimestampTransform());
assertEquals(syncAlgo.getTimestampTransform(trace2.getHostId()), trace2.getTimestampTransform());
experiment.dispose();
}
/**
* Testing synchronization with 3 traces, one of which synchronizes with
* both other
*/
@Test
public void testDjangoExperimentSync() {
CtfTmfTrace trace1 = CtfTmfTestTraceUtils.getTrace(CtfTestTrace.DJANGO_CLIENT);
CtfTmfTrace trace2 = CtfTmfTestTraceUtils.getTrace(CtfTestTrace.DJANGO_DB);
CtfTmfTrace trace3 = CtfTmfTestTraceUtils.getTrace(CtfTestTrace.DJANGO_HTTPD);
ITmfTrace[] traces = { trace1, trace2, trace3 };
TmfExperiment experiment = new TmfExperiment(traces[0].getEventType(), EXPERIMENT, traces, BLOCK_SIZE, null);
SynchronizationAlgorithm syncAlgo = experiment.synchronizeTraces(true);
ITmfTimestampTransform tt1 = syncAlgo.getTimestampTransform(trace1);
ITmfTimestampTransform tt2 = syncAlgo.getTimestampTransform(trace2);
ITmfTimestampTransform tt3 = syncAlgo.getTimestampTransform(trace3);
trace1.setTimestampTransform(tt1);
trace2.setTimestampTransform(tt2);
trace3.setTimestampTransform(tt3);
assertEquals(TimestampTransformFactory.getDefaultTransform(), tt1);
assertEquals("TmfTimestampTransformLinearFast [ slope = 0.9999996313017589597204633828681240, offset = 498490309972.0038068817738527724192 ]", tt2.toString());
assertEquals("TmfTimestampTransformLinearFast [ slope = 1.000000119014882262265342419815932, offset = -166652893534.6189900382736187431134 ]", tt3.toString());
experiment.dispose();
}
}