Attachment 159130 Details for Bug 301563 – Patch to org.eclipse.core.tests.resources plugin

[patch] Patch to org.eclipse.core.tests.resources plugin

org.eclipse.core.tests.resources.patch.txt (text/plain), 5.91 KB, created by Francis Lynch

on 2010-02-15 17:15:15 EST

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Creator: Francis Lynch

Created: 2010-02-15 17:15:15 EST

Size: 5.91 KB

patch

obsolete

>### Eclipse Workspace Patch 1.0
>#P org.eclipse.core.tests.resources
>Index: src/org/eclipse/core/tests/internal/localstore/SnapshotImportPerformanceTest.java
>===================================================================
>RCS file: src/org/eclipse/core/tests/internal/localstore/SnapshotImportPerformanceTest.java
>diff -N src/org/eclipse/core/tests/internal/localstore/SnapshotImportPerformanceTest.java
>--- /dev/null	1 Jan 1970 00:00:00 -0000
>+++ src/org/eclipse/core/tests/internal/localstore/SnapshotImportPerformanceTest.java	1 Jan 1970 00:00:00 -0000
>@@ -0,0 +1,156 @@
>+/*******************************************************************************
>+ * Copyright (c) 2000, 2010 IBM Corporation 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:
>+ *     IBM Corporation - initial API and implementation
>+ *     Francis Lynch (Wind River) - [301563] adapted from
>+ *     		RefreshLocalPerformanceTest
>+ *******************************************************************************/
>+package org.eclipse.core.tests.internal.localstore;
>+
>+import java.io.File;
>+import java.util.Date;
>+import junit.framework.Test;
>+import junit.framework.TestSuite;
>+import org.eclipse.core.resources.*;
>+import org.eclipse.core.runtime.IPath;
>+import org.eclipse.core.runtime.Path;
>+import org.eclipse.core.tests.resources.ResourceDeltaVerifier;
>+import org.eclipse.core.tests.resources.ResourceTest;
>+
>+//
>+public class SnapshotImportPerformanceTest extends ResourceTest {
>+	/** big site default volume (windows) */
>+	public static final String bigSiteDevice = "d:";
>+
>+	/** big site initial location */
>+	public static final IPath bigSiteLocation = new Path(bigSiteDevice, "/bigsite");
>+
>+	/** settings directory name */
>+	private static final String DIR_NAME = ".settings";
>+
>+	/** benchmark */
>+	public Date startDate;
>+
>+	public SnapshotImportPerformanceTest() {
>+		super();
>+	}
>+
>+	public SnapshotImportPerformanceTest(String name) {
>+		super(name);
>+	}
>+
>+	protected int countChildren(File root) {
>+		String[] children = root.list();
>+		if (children == null)
>+			return 0;
>+		int result = 0;
>+		for (int i = 0; i < children.length; i++) {
>+			File child = new File(root, children[i]);
>+			if (child.isDirectory())
>+				result += countChildren(child);
>+			result++;
>+		}
>+		return result;
>+	}
>+
>+	public String dispTime(long diff) {
>+		return String.valueOf(diff);
>+	}
>+
>+	public void startClock() {
>+		startDate = new Date();
>+	}
>+
>+	public long stopClock() {
>+		Date stopDate = new Date();
>+		return stopDate.getTime() - startDate.getTime();
>+	}
>+
>+	// this test should not be in AllTests because it is only a performance test
>+	public static Test suite() {
>+		TestSuite suite = new TestSuite(SnapshotImportPerformanceTest.class.getName());
>+		suite.addTest(new SnapshotImportPerformanceTest("testSnapshotImportPerformance"));
>+		return suite;
>+	}
>+
>+	/**
>+	 * Open a project and export a refresh snapshot. Re-open the project using
>+	 * the snapshot and compare the times for opening with and without the
>+	 * snapshot.
>+	 */
>+	public void testSnapshotImportPerformance() throws Exception {
>+		// test if the test can be done in this machine
>+		if (!bigSiteLocation.toFile().isDirectory())
>+			return;
>+
>+		// create common objects
>+		IProject project = getWorkspace().getRoot().getProject("MyTestProject");
>+		IProjectDescription description = getWorkspace().newProjectDescription(project.getName());
>+		description.setLocation(bigSiteLocation);
>+
>+		// performance data
>+		long originalOpen = 0;
>+		long snapshotOpen = 0;
>+		long refresh2Open = 0;
>+
>+		// report the number of files to be refreshed
>+		int numberOfFiles = countChildren(bigSiteLocation.toFile());
>+		System.out.println("Number of local resources: " + numberOfFiles);
>+
>+		// create the project from the location
>+		project.create(description, null);
>+
>+		// open the project, timing the initial refresh
>+		startClock();
>+		project.open(null);
>+		originalOpen = stopClock();
>+
>+		// dump the snapshot refresh info
>+		ensureExistsInWorkspace(project.getFolder(DIR_NAME), true);
>+		project.writeRefreshSnapshot(null);
>+
>+		// close and delete project but leave contents
>+		project.close(null);
>+		project.delete(false, false, null);
>+
>+		// open the project and import refresh snapshot
>+		project.create(description, null);
>+		startClock();
>+		project.open(null);
>+		snapshotOpen = stopClock();
>+
>+		// now refresh the project, verifying zero resource delta
>+		// (except for the creation of .settings/resource-index.zip)
>+		ResourceDeltaVerifier verifier = new ResourceDeltaVerifier();
>+		ResourcesPlugin.getWorkspace().addResourceChangeListener(verifier);
>+		verifier.reset();
>+		IFolder settings = project.getFolder(DIR_NAME);
>+		IFile snapshot = project.getFile(IProject.REFRESH_SNAPSHOT_FILE_LOCATION);
>+		verifier.addExpectedChange(settings, IResourceDelta.CHANGED, 0);
>+		verifier.addExpectedChange(snapshot, IResourceDelta.ADDED, 0);
>+		project.refreshLocal(IResource.DEPTH_INFINITE, null);
>+		verifier.verifyDelta(null);
>+		assertTrue("2.0 " + verifier.getMessage(), verifier.isDeltaValid());
>+
>+		// close and delete project but leave contents
>+		project.close(null);
>+		project.delete(false, false, null);
>+		IPath snapshotFile = bigSiteLocation.append(IProject.REFRESH_SNAPSHOT_FILE_LOCATION);
>+		snapshotFile.toFile().delete();
>+
>+		// open the project again with standard refresh
>+		project.create(description, null);
>+		startClock();
>+		project.open(null);
>+		refresh2Open = stopClock();
>+
>+		System.out.println("Original open: " + originalOpen);
>+		System.out.println("Snapshot open: " + snapshotOpen);
>+		System.out.println("Second refresh open: " + refresh2Open);
>+	}
>+}

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