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/*******************************************************************************
* Copyright (c) 2009 Cloudsmith Inc. and others.
* 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:
* Cloudsmith Inc. - initial API and implementation
*******************************************************************************/
package org.eclipse.equinox.p2.tests.ql;
import java.net.URI;
import java.util.*;
import org.eclipse.core.runtime.NullProgressMonitor;
import org.eclipse.equinox.internal.p2.director.QueryableArray;
import org.eclipse.equinox.internal.p2.director.Slicer;
import org.eclipse.equinox.internal.p2.metadata.query.IUPropertyQuery;
import org.eclipse.equinox.internal.p2.metadata.query.MatchQuery;
import org.eclipse.equinox.internal.provisional.p2.metadata.MetadataFactory;
import org.eclipse.equinox.p2.metadata.*;
import org.eclipse.equinox.p2.metadata.query.*;
import org.eclipse.equinox.p2.query.*;
import org.eclipse.equinox.p2.repository.metadata.IMetadataRepository;
import org.eclipse.equinox.p2.repository.metadata.IMetadataRepositoryManager;
import org.eclipse.equinox.p2.tests.AbstractProvisioningTest;
public class PerformanceTest extends AbstractProvisioningTest {
public void testCapabilityQueryPerformance() throws Exception {
IMetadataRepository repo = getMDR("/testData/galileoM7");
IRequirement capability = MetadataFactory.createRequiredCapability("org.eclipse.equinox.p2.eclipse.type", "feature", new VersionRange("[1.0.0,2.0.0)"), null, false, false);
IQuery<IInstallableUnit> predicateQuery = ExpressionQuery.create("this ~= $0", capability);
IQuery<IInstallableUnit> capabilityQuery = ExpressionQuery.create(capability.getMatches());
IQueryResult<IInstallableUnit> result;
long tradQueryMS = 0;
long exprQueryMS = 0;
for (int i = 0; i < 5; ++i) {
long start = System.currentTimeMillis();
for (int idx = 0; idx < 80; ++idx) {
result = repo.query(capabilityQuery, new NullProgressMonitor());
assertEquals(queryResultSize(result), 487);
}
tradQueryMS += (System.currentTimeMillis() - start);
start = System.currentTimeMillis();
for (int idx = 0; idx < 80; ++idx) {
result = repo.query(predicateQuery, new NullProgressMonitor());
assertEquals(queryResultSize(result), 487);
}
exprQueryMS += (System.currentTimeMillis() - start);
}
System.out.println("CapabilityQuery took: " + tradQueryMS + " milliseconds");
System.out.println("PredicateQuery took: " + exprQueryMS + " milliseconds");
System.out.println();
}
public void testIUPropertyQueryPerformance() throws Exception {
IMetadataRepository repo = getMDR("/testData/galileoM7");
IUPropertyQuery propertyQuery = new IUPropertyQuery("df_LT.providerName", "Eclipse.org");
IQuery<IInstallableUnit> predicateQuery = ExpressionQuery.create("properties[$0] == $1", "df_LT.providerName", "Eclipse.org");
IQueryResult<IInstallableUnit> result;
long tradQueryMS = 0;
long exprQueryMS = 0;
for (int i = 0; i < 5; ++i) {
long start = System.currentTimeMillis();
for (int idx = 0; idx < 80; ++idx) {
result = repo.query(propertyQuery, new NullProgressMonitor());
assertEquals(queryResultSize(result), 965);
}
tradQueryMS += (System.currentTimeMillis() - start);
start = System.currentTimeMillis();
for (int idx = 0; idx < 80; ++idx) {
result = repo.query(predicateQuery, new NullProgressMonitor());
assertEquals(queryResultSize(result), 965);
}
exprQueryMS += (System.currentTimeMillis() - start);
}
System.out.println("IUPropertyQuery took: " + tradQueryMS + " milliseconds");
System.out.println("PredicateQuery took: " + exprQueryMS + " milliseconds");
System.out.println();
}
public void testSlicerPerformance() throws Exception {
Hashtable env = new Hashtable();
env.put("osgi.os", "linux");
env.put("osgi.ws", "gtk");
env.put("osgi.arch", "x86");
IMetadataRepository repo = getMDR("/testData/galileoM7");
IQueryResult<IInstallableUnit> r = repo.query(new InstallableUnitQuery("org.eclipse.sdk.feature.group", Version.create("3.5.0.v20090423-7Q7bA7DPR-wM38__Q4iRsmx9z0KOjbpx3AbyvXd-Uq7J2")), new NullProgressMonitor());
Iterator itor = r.iterator();
assertTrue(itor.hasNext());
IInstallableUnit[] roots = new IInstallableUnit[] {(IInstallableUnit) itor.next()};
IQuery query = ExpressionContextQuery.createQuery( //
"$0.traverse(set(), _, { cache, parent | parent.requiredCapabilities.unique(cache).select(rc | rc.filter == null || $1 ~= rc.filter).collect(rc | everything.select(iu | iu ~= rc)).flatten()})", roots, env);
long sliceTime = 0;
long traverseTime = 0;
IQueryable slice = null;
for (int idx = 0; idx < 100; ++idx) {
long startTime = System.currentTimeMillis();
r = repo.query(query, new NullProgressMonitor());
traverseTime += (System.currentTimeMillis() - startTime);
assertEquals(queryResultSize(r), 411);
startTime = System.currentTimeMillis();
Slicer slicer = new Slicer(new QueryableArray(gatherAvailableInstallableUnits(repo)), env, false);
slice = slicer.slice(roots, new NullProgressMonitor());
sliceTime += (System.currentTimeMillis() - startTime);
}
// Check the size of the last slice to verify that it's the same as the traverse size
r = slice.query(new MatchQuery() {
public boolean isMatch(Object value) {
return true;
}
}, new NullProgressMonitor());
assertEquals(queryResultSize(r), 411);
System.out.print("100 * Slicing took: ");
System.out.println(sliceTime);
System.out.print("100 * Indexed Traverse expression took: ");
System.out.println(traverseTime);
System.out.println();
}
private IMetadataRepository getMDR(String uri) throws Exception {
URI metadataRepo = getTestData("1.1", uri).toURI();
IMetadataRepositoryManager metadataManager = (IMetadataRepositoryManager) getAgent().getService(IMetadataRepositoryManager.SERVICE_NAME);
assertNotNull(metadataManager);
return metadataManager.loadRepository(metadataRepo, new NullProgressMonitor());
}
private IInstallableUnit[] gatherAvailableInstallableUnits(IQueryable queryable) {
ArrayList<IInstallableUnit> list = new ArrayList<IInstallableUnit>();
IQueryResult<IInstallableUnit> matches = queryable.query(InstallableUnitQuery.ANY, null);
for (Iterator<IInstallableUnit> it = matches.iterator(); it.hasNext();)
list.add(it.next());
return list.toArray(new IInstallableUnit[list.size()]);
}
}
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