| /******************************************************************************* |
| * Copyright (c) 2000, 2013 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jdt.text.tests.performance; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.InputStreamReader; |
| import java.io.Reader; |
| import java.io.StringReader; |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.zip.ZipException; |
| import java.util.zip.ZipFile; |
| |
| import org.junit.Assert; |
| |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.Path; |
| import org.eclipse.core.runtime.Plugin; |
| |
| import org.eclipse.core.resources.IFile; |
| import org.eclipse.core.resources.IProject; |
| import org.eclipse.core.resources.IProjectDescription; |
| import org.eclipse.core.resources.IWorkspace; |
| import org.eclipse.core.resources.IWorkspaceRoot; |
| import org.eclipse.core.resources.IncrementalProjectBuilder; |
| import org.eclipse.core.resources.ResourcesPlugin; |
| |
| |
| public class ResourceTestHelper { |
| |
| public static final int FAIL_IF_EXISTS= 0; |
| |
| public static final int OVERWRITE_IF_EXISTS= 1; |
| |
| public static final int SKIP_IF_EXISTS= 2; |
| |
| private static final int DELETE_MAX_RETRY= 5; |
| |
| private static final long DELETE_RETRY_DELAY= 1000; |
| |
| public static void replicate(String src, String destPrefix, String destSuffix, int n, int ifExists) throws CoreException { |
| for (int i= 0; i < n; i++) |
| copy(src, destPrefix + i + destSuffix, ifExists); |
| } |
| |
| public static void copy(String src, String dest) throws CoreException { |
| copy(src, dest, FAIL_IF_EXISTS); |
| } |
| |
| public static void copy(String src, String dest, int ifExists) throws CoreException { |
| if (handleExisting(dest, ifExists)) |
| getFile(src).copy(new Path(dest), true, null); |
| } |
| |
| private static boolean handleExisting(String dest, int ifExists) throws CoreException { |
| IFile destFile= getFile(dest); |
| switch (ifExists) { |
| case FAIL_IF_EXISTS: |
| if (destFile.exists()) |
| throw new IllegalArgumentException("Destination file exists: " + dest); |
| return true; |
| case OVERWRITE_IF_EXISTS: |
| if (destFile.exists()) |
| delete(destFile); |
| return true; |
| case SKIP_IF_EXISTS: |
| if (destFile.exists()) |
| return false; |
| return true; |
| default: |
| throw new IllegalArgumentException(); |
| } |
| } |
| |
| private static IFile getFile(String path) { |
| return getRoot().getFile(new Path(path)); |
| } |
| |
| public static void delete(String file) throws CoreException { |
| delete(getFile(file)); |
| } |
| |
| private static void delete(IFile file) throws CoreException { |
| CoreException x= null; |
| for (int i= 0; i < DELETE_MAX_RETRY; i++) { |
| try { |
| file.delete(true, null); |
| return; |
| } catch (CoreException x0) { |
| x= x0; |
| try { |
| Thread.sleep(DELETE_RETRY_DELAY); |
| } catch (InterruptedException x1) { |
| // should not happen |
| } |
| } |
| } |
| throw x; |
| } |
| |
| public static void delete(String prefix, String suffix, int n) throws CoreException { |
| for (int i= 0; i < n; i++) |
| delete(prefix + i + suffix); |
| } |
| |
| public static IFile findFile(String pathStr) { |
| IFile file= getFile(pathStr); |
| Assert.assertTrue(file != null && file.exists()); |
| return file; |
| } |
| |
| public static IFile[] findFiles(String prefix, String suffix, int i, int n) { |
| List<IFile> files= new ArrayList<>(n); |
| for (int j= i; j < i + n; j++) { |
| String path= prefix + j + suffix; |
| files.add(findFile(path)); |
| } |
| return files.toArray(new IFile[files.size()]); |
| } |
| |
| public static StringBuffer read(String src) throws IOException, CoreException { |
| return FileTool.read(new InputStreamReader(getFile(src).getContents())); |
| } |
| |
| public static void write(String dest, final String content) throws CoreException { |
| InputStream stream= new InputStream() { |
| private Reader fReader= new StringReader(content); |
| @Override |
| public int read() throws IOException { |
| return fReader.read(); |
| } |
| }; |
| getFile(dest).create(stream, true, null); |
| } |
| |
| |
| public static void replicate(String src, String destPrefix, String destSuffix, int n, String srcName, String destNamePrefix, int ifExists) throws IOException, CoreException { |
| StringBuffer s= read(src); |
| List<Integer> positions= identifierPositions(s, srcName); |
| for (int j= 0; j < n; j++) { |
| String dest= destPrefix + j + destSuffix; |
| if (handleExisting(dest, ifExists)) { |
| StringBuffer c= new StringBuffer(s.toString()); |
| replacePositions(c, srcName.length(), destNamePrefix + j, positions); |
| write(dest, c.toString()); |
| } |
| } |
| } |
| |
| public static void copy(String src, String dest, String srcName, String destName, int ifExists) throws IOException, CoreException { |
| if (handleExisting(dest, ifExists)) { |
| StringBuffer buf= read(src); |
| List<Integer> positions= identifierPositions(buf, srcName); |
| replacePositions(buf, srcName.length(), destName, positions); |
| write(dest, buf.toString()); |
| } |
| } |
| |
| private static void replacePositions(StringBuffer c, int origLength, String string, List<Integer> positions) { |
| int offset= 0; |
| for (Integer integer : positions) { |
| int position= integer; |
| c.replace(offset + position, offset + position + origLength, string); |
| offset += string.length() - origLength; |
| } |
| } |
| |
| private static List<Integer> identifierPositions(StringBuffer buffer, String identifier) { |
| List<Integer> positions= new ArrayList<>(); |
| int i= -1; |
| while (true) { |
| i= buffer.indexOf(identifier, i + 1); |
| if (i == -1) |
| break; |
| if (i > 0 && Character.isJavaIdentifierPart(buffer.charAt(i - 1))) |
| continue; |
| if (i < buffer.length() - 1 && Character.isJavaIdentifierPart(buffer.charAt(i + identifier.length()))) |
| continue; |
| positions.add(i); |
| } |
| return positions; |
| } |
| |
| private static IWorkspaceRoot getRoot() { |
| return ResourcesPlugin.getWorkspace().getRoot(); |
| } |
| |
| public static void incrementalBuild() throws CoreException { |
| ResourcesPlugin.getWorkspace().build(IncrementalProjectBuilder.INCREMENTAL_BUILD, null); |
| } |
| |
| public static void fullBuild() throws CoreException { |
| ResourcesPlugin.getWorkspace().build(IncrementalProjectBuilder.FULL_BUILD, null); |
| } |
| |
| public static IProject createExistingProject(String projectName) throws CoreException { |
| IWorkspace workspace= ResourcesPlugin.getWorkspace(); |
| IProject project= workspace.getRoot().getProject(projectName); |
| IProjectDescription description= workspace.newProjectDescription(projectName); |
| description.setLocation(null); |
| |
| project.create(description, null); |
| project.open(null); |
| return project; |
| } |
| |
| public static IProject createProjectFromZip(Plugin installationPlugin, String projectZip, String projectName) throws IOException, ZipException, CoreException { |
| String workspacePath= ResourcesPlugin.getWorkspace().getRoot().getLocation().toString() + "/"; |
| FileTool.unzip(new ZipFile(FileTool.getFileInPlugin(installationPlugin, new Path(projectZip))), new File(workspacePath)); |
| return createExistingProject(projectName); |
| } |
| |
| public static IProject getProject(String projectName) { |
| IWorkspace workspace= ResourcesPlugin.getWorkspace(); |
| return workspace.getRoot().getProject(projectName); |
| } |
| |
| public static boolean projectExists(String projectName) { |
| return getProject(projectName).exists(); |
| } |
| } |