Java tutorial
/******************************************************************************* * Copyright (c) 2000, 2008 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.jdt.internal.ui.exampleprojects; import java.io.IOException; import java.lang.reflect.InvocationTargetException; import java.net.URL; import java.util.zip.ZipFile; import org.osgi.framework.Bundle; import org.eclipse.core.runtime.CoreException; import org.eclipse.core.runtime.FileLocator; import org.eclipse.core.runtime.IConfigurationElement; import org.eclipse.core.runtime.IPath; import org.eclipse.core.runtime.IProgressMonitor; import org.eclipse.core.runtime.IStatus; import org.eclipse.core.runtime.NullProgressMonitor; import org.eclipse.core.runtime.Path; import org.eclipse.core.runtime.Platform; import org.eclipse.core.runtime.Status; import org.eclipse.core.runtime.SubProgressMonitor; 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.jface.operation.IRunnableWithProgress; import org.eclipse.ui.dialogs.IOverwriteQuery; import org.eclipse.ui.wizards.datatransfer.ImportOperation; import org.eclipse.ui.wizards.datatransfer.ZipFileStructureProvider; public class ExampleProjectCreationOperation implements IRunnableWithProgress { private IResource fElementToOpen; private ExampleProjectCreationWizardPage fPage; private IOverwriteQuery fOverwriteQuery; /* * Constructor for ExampleProjectCreationOperation */ public ExampleProjectCreationOperation(ExampleProjectCreationWizardPage page, IOverwriteQuery overwriteQuery) { fElementToOpen = null; fPage = page; fOverwriteQuery = overwriteQuery; } /* * @see IRunnableWithProgress#run(IProgressMonitor) */ public void run(IProgressMonitor monitor) throws InvocationTargetException, InterruptedException { if (monitor == null) { monitor = new NullProgressMonitor(); } try { createProject(fPage, monitor); } finally { monitor.done(); } } public IResource getElementToOpen() { return fElementToOpen; } private void createProject(ExampleProjectCreationWizardPage page, IProgressMonitor monitor) throws InvocationTargetException, InterruptedException { IWorkspaceRoot root = ExampleProjectsPlugin.getWorkspace().getRoot(); IConfigurationElement desc = page.getConfigurationElement(); String encoding = desc.getAttribute("encoding"); //$NON-NLS-1$ IConfigurationElement[] imports = desc.getChildren("import"); //$NON-NLS-1$ IConfigurationElement[] natures = desc.getChildren("nature"); //$NON-NLS-1$ IConfigurationElement[] references = desc.getChildren("references"); //$NON-NLS-1$ int nImports = (imports == null) ? 0 : imports.length; int nNatures = (natures == null) ? 0 : natures.length; int nReferences = (references == null) ? 0 : references.length; monitor.beginTask(ExampleProjectMessages.ExampleProjectCreationOperation_op_desc_proj, nImports + 2); String name = page.getName(); String[] natureIds = new String[nNatures]; for (int i = 0; i < nNatures; i++) { natureIds[i] = natures[i].getAttribute("id"); //$NON-NLS-1$ } IProject[] referencedProjects = new IProject[nReferences]; for (int i = 0; i < nReferences; i++) { referencedProjects[i] = root.getProject(references[i].getAttribute("id")); //$NON-NLS-1$ } IProject proj = configNewProject(root, name, natureIds, referencedProjects, encoding, monitor); for (int i = 0; i < nImports; i++) { doImports(proj, imports[i], new SubProgressMonitor(monitor, 1)); } String open = desc.getAttribute("open"); //$NON-NLS-1$ if (open != null && open.length() > 0) { IResource fileToOpen = proj.findMember(new Path(open)); if (fileToOpen != null) { fElementToOpen = fileToOpen; } } } private IProject configNewProject(IWorkspaceRoot root, String name, String[] natureIds, IProject[] referencedProjects, String encoding, IProgressMonitor monitor) throws InvocationTargetException { try { IProject project = root.getProject(name); if (!project.exists()) { project.create(null); } if (!project.isOpen()) { project.open(null); } IProjectDescription desc = project.getDescription(); desc.setLocation(null); desc.setNatureIds(natureIds); desc.setReferencedProjects(referencedProjects); project.setDescription(desc, new SubProgressMonitor(monitor, 1)); if (encoding != null) { project.setDefaultCharset(encoding, new SubProgressMonitor(monitor, 1)); } return project; } catch (CoreException e) { throw new InvocationTargetException(e); } } private void doImports(IProject project, IConfigurationElement curr, IProgressMonitor monitor) throws InvocationTargetException, InterruptedException { try { IPath destPath; String name = curr.getAttribute("dest"); //$NON-NLS-1$ if (name == null || name.length() == 0) { destPath = project.getFullPath(); } else { IFolder folder = project.getFolder(name); if (!folder.exists()) { folder.create(true, true, null); } destPath = folder.getFullPath(); } String importPath = curr.getAttribute("src"); //$NON-NLS-1$ if (importPath == null) { importPath = ""; //$NON-NLS-1$ ExampleProjectsPlugin.log("projectsetup descriptor: import missing"); //$NON-NLS-1$ return; } ZipFile zipFile = getZipFileFromPluginDir(importPath, getContributingPlugin(curr)); importFilesFromZip(zipFile, destPath, new SubProgressMonitor(monitor, 1)); } catch (CoreException e) { throw new InvocationTargetException(e); } } private Bundle getContributingPlugin(IConfigurationElement configurationElement) { String namespace = configurationElement.getContributor().getName(); return Platform.getBundle(namespace); } private ZipFile getZipFileFromPluginDir(String pluginRelativePath, Bundle pluginDescriptor) throws CoreException { try { URL starterURL = pluginDescriptor.getEntry(pluginRelativePath); return new ZipFile(FileLocator.toFileURL(starterURL).getFile()); } catch (IOException e) { String message = pluginRelativePath + ": " + e.getMessage(); //$NON-NLS-1$ Status status = new Status(IStatus.ERROR, ExampleProjectsPlugin.getPluginId(), IStatus.ERROR, message, e); throw new CoreException(status); } } private void importFilesFromZip(ZipFile srcZipFile, IPath destPath, IProgressMonitor monitor) throws InvocationTargetException, InterruptedException { ZipFileStructureProvider structureProvider = new ZipFileStructureProvider(srcZipFile); ImportOperation op = new ImportOperation(destPath, structureProvider.getRoot(), structureProvider, fOverwriteQuery); op.run(monitor); } }