diff options
Diffstat (limited to 'tests/org.eclipse.team.tests.cvs.core/src/org/eclipse/team/tests/ccvs/ui/benchmark/BenchmarkUtils.java')
| -rw-r--r-- | tests/org.eclipse.team.tests.cvs.core/src/org/eclipse/team/tests/ccvs/ui/benchmark/BenchmarkUtils.java | 552 |
1 files changed, 0 insertions, 552 deletions
diff --git a/tests/org.eclipse.team.tests.cvs.core/src/org/eclipse/team/tests/ccvs/ui/benchmark/BenchmarkUtils.java b/tests/org.eclipse.team.tests.cvs.core/src/org/eclipse/team/tests/ccvs/ui/benchmark/BenchmarkUtils.java deleted file mode 100644 index c044ce9a0..000000000 --- a/tests/org.eclipse.team.tests.cvs.core/src/org/eclipse/team/tests/ccvs/ui/benchmark/BenchmarkUtils.java +++ /dev/null @@ -1,552 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2000, 2003 IBM Corporation and others. - * All rights reserved. This program and the accompanying materials - * are made available under the terms of the Common Public License v1.0 - * which accompanies this distribution, and is available at - * http://www.eclipse.org/legal/cpl-v10.html - * - * Contributors: - * IBM Corporation - initial API and implementation - *******************************************************************************/ -package org.eclipse.team.tests.ccvs.ui.benchmark; - - -import java.io.*; -import java.lang.reflect.InvocationTargetException; -import java.util.*; -import java.util.zip.ZipException; -import java.util.zip.ZipFile; - -import junit.framework.Assert; - -import org.eclipse.compare.structuremergeviewer.*; -import org.eclipse.core.resources.*; -import org.eclipse.core.runtime.*; -import org.eclipse.team.internal.ccvs.core.CVSStatus; -import org.eclipse.ui.wizards.datatransfer.ImportOperation; -import org.eclipse.ui.wizards.datatransfer.ZipFileStructureProvider; - -/** - * Provides helpers for: - * <ul> - * <li>Resource manipulation</li> - * <li>Diff trees</li> - * <li>UI automation</li> - * <li>Parallel development simulation</li> - * </ul> - * - * Note: This class is referenced from the VCM 1.0 performance tests. - */ -public class BenchmarkUtils { - /*** RESOURCE MANIPULATION SUPPORT ***/ - - /** - * Gets a handle for a project of a given name. - * @param name the project name - * @return the project handle - */ - public static IProject getProject(String name) throws CoreException { - return ResourcesPlugin.getWorkspace().getRoot().getProject(name); - } - - /** - * Creates a new project. - * @param name the project name - * @return the project handle - */ - public static IProject createProject(String name) throws CoreException { - IProject project = getProject(name); - if (!project.exists()) project.create(null); - if (!project.isOpen()) project.open(null); - return project; - } - - /** - * Deletes a project. - * @param project the project - */ - public static void deleteProject(IProject project) throws CoreException { - project.delete(false /*force*/, null); - } - - /** - * Deletes a file and prunes empty containing folders. - * @param file the file to delete - */ - public static void deleteFileAndPrune(IFile file) throws CoreException { - file.delete(false /*force*/, null); - IContainer container = file.getParent(); - while (container != null && container instanceof IFolder && - isFolderEmpty((IFolder) container)) { - deleteFolder((IFolder) container); - container = container.getParent(); - } - } - - /** - * Deletes a folder. - */ - public static void deleteFolder(IFolder folder) throws CoreException { - try { - folder.delete(false /*force*/, null); - } catch (CoreException e) { - IStatus status = e.getStatus(); - // ignore errors caused by attempting to delete folders that CVS needs to have around - if (findStatusByCode(status, CVSStatus.FOLDER_NEEDED_FOR_FILE_DELETIONS) == null) { - throw e; - } - } - } - - /** - * Finds an IStatus instance in a multi-status by status code. - */ - public static IStatus findStatusByCode(IStatus status, int code) { - if (status.getCode() == code) return status; - IStatus[] children = status.getChildren(); - for (int i = 0; i < children.length; i++) { - IStatus found = findStatusByCode(children[i], code); - if (found != null) return found; - } - return null; - } - - /** - * Creates a uniquely named project. - * @param prefix a string prepended to the generated name - * @return the new project - */ - public static IProject createUniqueProject(String prefix) throws CoreException { - return createProject(makeUniqueName(null, prefix, null)); - } - - /** - * Creates a uniquely named file in the parent folder or project with random contents. - * @param gen the sequence generator - * @param parent the parent IFolder or IProject for the new file - * @param meanSize the mean size of file to create (in bytes) - * @param variance 69% of files with be within this amount of the mean - * @param probBinary the probability of a new file being binary as a percentage - * @return the new file - */ - public static IFile createUniqueFile(SequenceGenerator gen, IContainer parent, - int meanSize, int variance, int probBinary) throws IOException, CoreException { - int fileSize; - do { - fileSize = (int) Math.abs(gen.nextGaussian() * variance + meanSize); - } while (fileSize > meanSize + variance * 4); // avoid huge files - - ByteArrayOutputStream os = new ByteArrayOutputStream(); - String fileName; - if (gen.nextInt(100) < probBinary) { - fileName = makeUniqueName(gen, "file", "class"); // binary - writeRandomBytes(gen, os, fileSize); - } else { - fileName = makeUniqueName(gen, "file", "txt"); // text - writeRandomText(gen, os, fileSize); - } - IFile file = parent.getFile(new Path(fileName)); - file.create(new ByteArrayInputStream(os.toByteArray()), true, null); - os.close(); - return file; - } - - /** - * Creates a uniquely named folder in the parent folder. - * @param gen the sequence generator - * @param parent the parent IFolder or IProject for the new folder - * @return the new folder - */ - public static IFolder createUniqueFolder(SequenceGenerator gen, IContainer parent) throws CoreException { - IFolder folder = parent.getFolder(new Path(BenchmarkUtils.makeUniqueName(gen, "folder", null))); - folder.create(false /*force*/, true /*local*/, null); - return folder; - } - - /** - * Renames a resource. - * The resource handle becomes invalid. - * @param resource the existing resource - * @param newName the new name for the resource - */ - public static void renameResource(IResource resource, String newName) throws CoreException { - switch (resource.getType()) { - case IResource.PROJECT: { - IProject project = (IProject) resource; - IProjectDescription desc = project.getDescription(); - desc.setName(newName); - project.move(desc, false /*force*/, true /*keepHistory*/, null); - } break; - case IResource.FOLDER: { - try { - resource.move(new Path(newName), false /*force*/, null); - } catch (CoreException e) { - IStatus status = e.getStatus(); - // ignore errors caused by attempting to delete folders that CVS needs to have around - if (findStatusByCode(status, CVSStatus.FOLDER_NEEDED_FOR_FILE_DELETIONS) == null) { - throw e; - } - } - } break; - default: - resource.move(new Path(newName), false /*force*/, null); - break; - } - } - - /** - * Modified a resource. - * @param gen the sequence generator - * @param file the file to modify - */ - public static void modifyFile(SequenceGenerator gen, IFile file) - throws IOException, CoreException { - ByteArrayOutputStream os = new ByteArrayOutputStream(); - try { - InputStream is = file.getContents(true); - try { - byte[] buffer = new byte[8192]; - int rsize; - boolean changed = false; - while ((rsize = is.read(buffer)) != -1) { - double gaussian; - do { - gaussian = gen.nextGaussian() * 0.5; // large changes are less likely than small ones - } while (gaussian > 1.0 || gaussian < -1.0); - int changeSize = (int) (gaussian * rsize); - changed = changed || changeSize != 0; - os.write(buffer, 0, changeSize < 0 ? - changeSize : rsize); // shrink file - writeRandomText(gen, os, changeSize); // enlarge file - } - if (! changed) os.write('!'); // make sure we actually did change the file - file.setContents(new ByteArrayInputStream(os.toByteArray()), false /*force*/, true /*keepHistory*/, null); - } finally { - is.close(); - } - } finally { - os.close(); - } - } - - /** - * Creates a unique name. - * Ensures that a deterministic sequence of names is generated for all files - * and folders within a project, though not across sessions. - * - * @param gen the generator, or null if this name is to be globally unique - * @param prefix a string prepended to the generated name - * @param extension the file extension not including the period, null if none - * @return the new name - */ - public static String makeUniqueName(SequenceGenerator gen, String prefix, String extension) - throws CoreException { - StringBuffer name = new StringBuffer(prefix); - name.append('-'); - if (gen == null) { - name.append(SequenceGenerator.nextGloballyUniqueLong()); - } else { - name.append(gen.nextUniqueInt()); - } - if (extension != null) { - name.append('.'); - name.append(extension); - } - return name.toString(); - } - - /** - * Imports a .zip file into a container's root folder. - * @param container the container - * @param file the path of the .zip file - */ - public static void importZip(IContainer container, File file) - throws IOException, ZipException, InterruptedException, InvocationTargetException { - ZipFile zipFile = new ZipFile(file); - ZipFileStructureProvider provider = new ZipFileStructureProvider(zipFile); - ImportOperation importOperation = new ImportOperation(container.getFullPath(), - provider.getRoot(), provider, null); - importOperation.setOverwriteResources(true); // don't ask - importOperation.run(new NullProgressMonitor()); - Assert.assertTrue(importOperation.getStatus().isOK()); - } - - /** - * Writes random text to an output stream. - * @param gen the sequence generator - */ - public static void writeRandomText(SequenceGenerator gen, OutputStream os, int count) throws IOException { - while (count-- > 0) { - int c = gen.nextInt(99); - os.write((c >= 95) ? '\n' : c + ' '); - } - } - - /** - * Writes random bytes to an output stream. - * @param gen the sequence generator - */ - public static void writeRandomBytes(SequenceGenerator gen, OutputStream os, int count) throws IOException { - while (count-- > 0) { - os.write(gen.nextInt(256)); - } - } - - /** - * Creates a random folder deeply below the root folder. - * @param gen the sequence generator - * @param root the root IFolder or IProject for the operation - * @return the new folder - */ - public static IFolder createRandomDeepFolder(SequenceGenerator gen, IContainer root) throws CoreException { - IContainer container = pickRandomDeepContainer(gen, root); - for (;;) { - IFolder folder = createUniqueFolder(gen, container); - container = folder; - // 12.5% chance of creating a nested folder - if (gen.nextInt(8) != 0) return folder; - } - } - - /** - * Creates several random files deeply below the root folder. - * @param gen the sequence generator - * @param root the root IFolder or IProject for the operation - * @param count the number of files to create - * @param meanSize the mean size of file to create (in bytes) - * @param probBinary the probability of a new file being binary as a percentage - */ - public static void createRandomDeepFiles(SequenceGenerator gen, IContainer root, int count, - int meanSize, int variance, int probBinary) throws IOException, CoreException { - while (count-- > 0) { - createUniqueFile(gen, pickRandomDeepContainer(gen, root), meanSize, variance, probBinary); - } - } - - /** - * Deletes several random files deeply below the root folder. - * @param gen the sequence generator - * @param root the root IFolder or IProject for the operation - * @param count the number of files to delete - */ - public static void deleteRandomDeepFiles(SequenceGenerator gen, IContainer root, int count) throws CoreException { - while (count-- > 0) { - IFile file = pickRandomDeepFile(gen, root); - if (file == null) break; - deleteFileAndPrune(file); - } - } - - /** - * Modifies several random files deeply below the root folder. - * @param gen the sequence generator - * @param root the root IFolder or IProject for the operation - * @param count the number of files to modify - */ - public static void modifyRandomDeepFiles(SequenceGenerator gen, IContainer root, int count) - throws IOException, CoreException { - // perhaps we can add a parameter for the "magnitude" of the change - while (count-- > 0) { - IFile file = pickRandomDeepFile(gen, root); - if (file == null) break; - modifyFile(gen, file); - } - } - - /** - * Touches several random files deeply below the root folder. - * @param gen the sequence generator - * @param root the root IFolder or IProject for the operation - * @param count the number of files to touch - */ - public static void touchRandomDeepFiles(SequenceGenerator gen, IContainer root, int count) throws CoreException { - while (count-- > 0) { - IFile file = pickRandomDeepFile(gen, root); - if (file == null) break; - file.touch(null); - } - } - - /** - * Renames several random files deeply below the root folder. - * @param gen the sequence generator - * @param root the root IFolder or IProject for the operation - * @param count the number of files to touch - */ - public static void renameRandomDeepFiles(SequenceGenerator gen, IContainer root, int count) throws CoreException { - IProject project = root.getProject(); - while (count-- > 0) { - IFile file = pickRandomDeepFile(gen, root); - if (file == null) break; - renameResource(file, makeUniqueName(gen, "file", file.getFileExtension())); - } - } - - /** - * Picks a random file from the parent folder or project. - * @param gen the sequence generator - * @param parent the parent IFolder or IProject for the operation - * @return the file that was chosen, or null if no suitable files - */ - public static IFile pickRandomFile(SequenceGenerator gen, IContainer parent) throws CoreException { - IResource[] members = filterResources(parent.members()); - for (int size = members.length; size != 0; --size) { - int elem = gen.nextInt(size); - if (members[elem] instanceof IFile) return (IFile) members[elem]; - System.arraycopy(members, elem + 1, members, elem, size - elem - 1); - } - return null; - } - - /** - * Picks a random folder from the parent folder or project. - * @param gen the sequence generator - * @param parent the parent IFolder or IProject for the operation - * @return the folder, or null if no suitable folders - */ - public static IFolder pickRandomFolder(SequenceGenerator gen, IContainer parent) throws CoreException { - IResource[] members = filterResources(parent.members()); - for (int size = members.length; size != 0; --size) { - int elem = gen.nextInt(size); - if (members[elem] instanceof IFolder) return (IFolder) members[elem]; - System.arraycopy(members, elem + 1, members, elem, size - elem - 1); - } - return null; - } - - /** - * Picks a random file deeply from the root folder or project. - * @param gen the sequence generator - * @param root the root IFolder or IProject for the operation - * @return the file that was chosen, or null if no suitable files - */ - public static IFile pickRandomDeepFile(SequenceGenerator gen, IContainer root) throws CoreException { - IResource[] members = filterResources(root.members()); - for (int size = members.length; size != 0; --size) { - int elem = gen.nextInt(size); - IResource resource = members[elem]; - if (resource instanceof IFile) return (IFile) resource; - if (resource instanceof IFolder) { - IFile file = pickRandomDeepFile(gen, (IFolder) resource); - if (file != null) return file; - } - System.arraycopy(members, elem + 1, members, elem, size - elem - 1); - } - return null; - } - - /** - * Picks a random folder deeply from the root folder or project. - * May pick the project's root container. - * @param gen the sequence generator - * @param root the root IFolder or IProject for the operation - * @return the container that was chosen, never null - */ - public static IContainer pickRandomDeepContainer(SequenceGenerator gen, IContainer root) throws CoreException { - if (gen.nextInt(6) == 0) { - IResource[] members = filterResources(root.members()); - for (int size = members.length; size != 0; --size) { - int elem = gen.nextInt(size); - IResource resource = members[elem]; - if (resource instanceof IFolder) { - return pickRandomDeepContainer(gen, (IFolder) resource); - } - System.arraycopy(members, elem + 1, members, elem, size - elem - 1); - } - } - Assert.assertTrue(isValidContainer(root)); - return root; - } - - /** - * Returns true if the folder does not contain any real files. - */ - public static boolean isFolderEmpty(IFolder folder) throws CoreException { - IResource[] members = folder.members(); - for (int i = 0; i < members.length; ++i) { - if (isValidFile(members[i]) || isValidFolder(members[i])) return false; - } - return true; - } - - /** - * Returns true iff file is a valid IFile (that should not be ignored). - */ - public static boolean isValidFile(IResource file) throws CoreException { - String name = file.getName(); - return file instanceof IFile - && ! file.isPhantom() - && ! name.equals(".classpath") - && ! name.equals(".project") - && ! name.equals(".vcm_meta"); - } - - /** - * Returns true iff folder is a valid IFolder (that should not be ignored). - */ - public static boolean isValidFolder(IResource folder) throws CoreException { - String name = folder.getName(); - return folder instanceof IFolder - && ! folder.isPhantom() - && ! name.equals("CVS") - && ! name.equals("bin"); - } - - /** - * Returns true iff container is a valid IFolder or IProject (that should not be ignored). - */ - public static boolean isValidContainer(IResource container) throws CoreException { - return container instanceof IProject || isValidFolder(container); - } - - /** - * Returns true iff resource is a valid IFile, IFolder or IProject (that should not be ignored). - */ - public static boolean isValidResource(IResource resource) throws CoreException { - return isValidFile(resource) || isValidContainer(resource); - } - - /** - * Filters and sorts an array of resources to ensure deterministic behaviour across - * sessions. The general idea is to guarantee that given a known sequence of - * pseudo-random numbers, we will always pick the same sequence of files and - * folders each time we repeat the test. - */ - public static IResource[] filterResources(IResource[] resources) throws CoreException { - List list = new ArrayList(resources.length); - for (int i = 0; i < resources.length; ++i) { - if (isValidResource(resources[i])) list.add(resources[i]); - } - if (list.size() != resources.length) { - resources = (IResource[]) list.toArray(new IResource[list.size()]); - } - Arrays.sort(resources, new Comparator() { - public int compare(Object a, Object b) { - return ((IResource) a).getName().compareTo(((IResource) b).getName()); - } - }); - return resources; - } - - /*** DIFF SUPPORT ***/ - - public static boolean isEmpty(IDiffContainer node) { - if (node == null) return true; - if (node.getKind() != 0) return false; - IDiffElement[] children = node.getChildren(); - for (int i = 0; i < children.length; i++) { - if (!isEmpty(children[i])) return false; - } - return true; - } - public static boolean isEmpty(IDiffElement element) { - if (element == null) return true; - if (element.getKind() != 0) return false; - if (element instanceof IDiffContainer) { - IDiffElement[] children = ((DiffNode)element).getChildren(); - for (int i = 0; i < children.length; i++) { - if (!isEmpty(children[i])) return false; - } - } - return true; - } -} |