Java tutorial
/******************************************************************************* * Copyright (c) 2000, 2009 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 *******************************************************************************/ package org.eclipse.mylyn.context.sdk.java; import java.io.File; import java.io.IOException; import java.lang.reflect.InvocationTargetException; import java.util.zip.ZipException; import java.util.zip.ZipFile; import org.eclipse.core.resources.IFile; import org.eclipse.core.resources.IFolder; import org.eclipse.core.resources.IProject; import org.eclipse.core.resources.IProjectDescription; import org.eclipse.core.resources.IResource; import org.eclipse.core.resources.IWorkspaceRoot; import org.eclipse.core.resources.IWorkspaceRunnable; import org.eclipse.core.resources.ResourcesPlugin; import org.eclipse.core.runtime.CoreException; import org.eclipse.core.runtime.IPath; import org.eclipse.core.runtime.IProgressMonitor; import org.eclipse.core.runtime.NullProgressMonitor; import org.eclipse.jdt.core.IJavaProject; import org.eclipse.jdt.core.IMethod; import org.eclipse.jdt.core.IPackageFragment; import org.eclipse.jdt.core.IType; import org.eclipse.jdt.core.JavaCore; import org.eclipse.jdt.core.JavaModelException; import org.eclipse.mylyn.commons.core.StatusHandler; import org.eclipse.mylyn.commons.sdk.util.CommonTestUtil; import org.eclipse.mylyn.context.core.ContextCore; import org.eclipse.mylyn.internal.context.core.InteractionContext; import org.eclipse.mylyn.internal.context.core.InteractionContextScaling; import org.eclipse.pde.internal.core.natures.PDE; import org.eclipse.pde.internal.core.natures.PluginProject; public class WorkspaceSetupHelper { private static final int MAX_RETRY = 10; private static final String HELPER_CONTEXT_ID = "helper-context"; private static boolean isSetup = false; private static InteractionContext taskscape; private static IJavaProject project1; private static IJavaProject project2; private static TestJavaProject jdtCoreDomProject; private static IWorkspaceRoot workspaceRoot; private final static IProgressMonitor NULL_MONITOR = new NullProgressMonitor(); public static IJavaProject createJavaPluginProjectFromZip(Object source, String projectName, String zipFileName) throws CoreException, ZipException, IOException { IProject project = createProject(projectName); ZipFile zip = new ZipFile(CommonTestUtil.getFile(source, "testdata/projects/" + zipFileName)); CommonTestUtil.unzip(zip, project.getLocation().toFile()); project.refreshLocal(IResource.DEPTH_INFINITE, null); IJavaProject javaProject = createPluginProject(project); return javaProject; } public static IJavaProject createJavaPluginProjectFromDirectory(File sourceDirectory, String projectName) throws CoreException, ZipException, IOException { IProject project = createProject(projectName); CommonTestUtil.copyFolderRecursively(sourceDirectory, project.getLocation().toFile()); project.refreshLocal(IResource.DEPTH_INFINITE, null); IJavaProject javaProject = createPluginProject(project); return javaProject; } public static IJavaProject createPluginProject(IProject project) throws CoreException, JavaModelException { if (project == null) { return null; } IJavaProject javaProject = JavaCore.create(project); // create bin folder IFolder binFolder = project.getFolder("bin"); if (!binFolder.exists()) { binFolder.create(false, true, null); } // set java nature IProjectDescription description = project.getDescription(); description.setNatureIds(new String[] { PDE.PLUGIN_NATURE, JavaCore.NATURE_ID }); project.setDescription(description, null); // create output folder IPath outputLocation = binFolder.getFullPath(); javaProject.setOutputLocation(outputLocation, null); PluginProject pluginProject = new PluginProject(); pluginProject.setProject(project); pluginProject.configure(); return javaProject; } public static IProject createProject(String projectName) throws CoreException { IWorkspaceRoot root = ResourcesPlugin.getWorkspace().getRoot(); IProject project = root.getProject(projectName); if (!project.exists()) { project.create(NULL_MONITOR); } else { project.refreshLocal(IResource.DEPTH_INFINITE, null); } if (!project.isOpen()) { project.open(NULL_MONITOR); } return project; } public static void clearWorkspace() throws CoreException, IOException { isSetup = false; ResourcesPlugin.getWorkspace().getRoot().delete(true, true, new NullProgressMonitor()); clearDoiModel(); } public static IWorkspaceRoot setupWorkspace() throws CoreException, IOException, InvocationTargetException, InterruptedException { if (isSetup) { clearDoiModel(); return workspaceRoot; } taskscape = new InteractionContext(HELPER_CONTEXT_ID, new InteractionContextScaling()); workspaceRoot = ResourcesPlugin.getWorkspace().getRoot(); project1 = createJavaPluginProjectFromZip(WorkspaceSetupHelper.class, "project1", "project1.zip"); project2 = createJavaPluginProjectFromZip(WorkspaceSetupHelper.class, "project2", "project2.zip"); jdtCoreDomProject = new TestJavaProject("workspace-helper-project"); IPackageFragment jdtCoreDomPkg = jdtCoreDomProject.createPackage("org.eclipse.jdt.core.dom"); IType astNodeType = jdtCoreDomProject.createType(jdtCoreDomPkg, "ASTNode.java", "public class ASTNode { }"); astNodeType.createMethod("public final void setSourceRange(int startPosition, int length) { }", null, false, null); isSetup = true; project1.open(new NullProgressMonitor()); project2.open(new NullProgressMonitor()); jdtCoreDomProject.getJavaProject().open(new NullProgressMonitor()); return workspaceRoot; } public static void delete(final IResource resource) throws CoreException { IWorkspaceRunnable runnable = new IWorkspaceRunnable() { public void run(IProgressMonitor monitor) throws CoreException { for (int i = 0; i < MAX_RETRY; i++) { try { resource.delete(true, null); i = MAX_RETRY; } catch (CoreException e) { if (i == MAX_RETRY - 1) { StatusHandler.log(e.getStatus()); throw e; } System.gc(); // help windows to really close file // locks try { Thread.sleep(1000); // sleep a second } catch (InterruptedException e1) { } } } } }; ResourcesPlugin.getWorkspace().run(runnable, null); } public static void deleteProject(String projectName) throws CoreException { IWorkspaceRoot root = ResourcesPlugin.getWorkspace().getRoot(); IProject project = root.getProject(projectName); if (project.exists()) { delete(project); } } public static void clearDoiModel() throws CoreException { ContextCore.getContextManager().deleteContext(HELPER_CONTEXT_ID); taskscape = new InteractionContext(HELPER_CONTEXT_ID, new InteractionContextScaling()); } public static InteractionContext getContext() throws CoreException, IOException, InvocationTargetException, InterruptedException { if (!isSetup) { setupWorkspace(); } return taskscape; } public static IJavaProject getJdtCoreDomProject() throws CoreException, IOException, InvocationTargetException, InterruptedException { if (!isSetup) { setupWorkspace(); } return jdtCoreDomProject.getJavaProject(); } public static IJavaProject getProject1() throws CoreException, IOException, InvocationTargetException, InterruptedException { if (!isSetup) { setupWorkspace(); } return project1; } public static IJavaProject getProject2() throws CoreException, IOException, InvocationTargetException, InterruptedException { if (!isSetup) { setupWorkspace(); } return project2; } public static IWorkspaceRoot getWorkspaceRoot() throws CoreException, IOException, InvocationTargetException, InterruptedException { if (!isSetup) { setupWorkspace(); } return workspaceRoot; } public static IFile getFile(IJavaProject jp, String name) throws JavaModelException { if (jp == null || name == null) { return null; } Object[] files = jp.getNonJavaResources(); for (Object o : files) { if (o instanceof IFile && ((IFile) o).getName().equals(name)) { return (IFile) o; } } return null; } public static IType getType(IJavaProject jp, String fullyQualifiedName) throws JavaModelException { if (jp == null || fullyQualifiedName == null) { return null; } IType t = jp.findType(fullyQualifiedName); return t; } public static IMethod getMethod(IType t, String methodName, String[] params) { if (t == null || methodName == null || params == null) { return null; } return t.getMethod(methodName, params); } }