| /******************************************************************************* |
| * Copyright (c) 2006, 2011 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.corext.refactoring.binary; |
| |
| import java.io.BufferedOutputStream; |
| import java.io.IOException; |
| import java.io.OutputStream; |
| import java.net.URI; |
| import java.util.Iterator; |
| import java.util.List; |
| |
| import org.eclipse.core.filesystem.EFS; |
| import org.eclipse.core.filesystem.IFileStore; |
| |
| import org.eclipse.core.runtime.Assert; |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IProgressMonitor; |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.NullProgressMonitor; |
| import org.eclipse.core.runtime.OperationCanceledException; |
| import org.eclipse.core.runtime.Path; |
| import org.eclipse.core.runtime.Status; |
| import org.eclipse.core.runtime.SubProgressMonitor; |
| |
| import org.eclipse.core.resources.IWorkspaceRunnable; |
| |
| import org.eclipse.jdt.core.IClassFile; |
| import org.eclipse.jdt.core.IPackageFragment; |
| |
| import org.eclipse.jdt.internal.ui.JavaPlugin; |
| |
| /** |
| * Partial implementation of a code creation operation. |
| * |
| * @since 3.2 |
| */ |
| public abstract class AbstractCodeCreationOperation implements IWorkspaceRunnable { |
| |
| /** The URI where to output the stubs */ |
| protected final URI fOutputURI; |
| |
| /** The list of packages to create stubs for */ |
| protected final List<IPackageFragment> fPackages; |
| |
| /** |
| * Creates a new abstract code creation operation. |
| * |
| * @param uri |
| * the URI where to output the code |
| * @param packages |
| * the list of packages to create code for |
| */ |
| protected AbstractCodeCreationOperation(final URI uri, final List<IPackageFragment> packages) { |
| Assert.isNotNull(uri); |
| Assert.isNotNull(packages); |
| fOutputURI= uri; |
| fPackages= packages; |
| } |
| |
| /** |
| * Creates a new compilation unit with the given contents. |
| * |
| * @param store |
| * the file store |
| * @param name |
| * the name of the compilation unit |
| * @param content |
| * the content of the compilation unit |
| * @param monitor |
| * the progress monitor to use |
| * @throws CoreException |
| * if an error occurs while creating the compilation unit |
| */ |
| protected void createCompilationUnit(final IFileStore store, final String name, final String content, final IProgressMonitor monitor) throws CoreException { |
| OutputStream stream= null; |
| try { |
| stream= new BufferedOutputStream(store.getChild(name).openOutputStream(EFS.NONE, new SubProgressMonitor(monitor, 1))); |
| try { |
| stream.write(content.getBytes()); |
| } catch (IOException exception) { |
| throw new CoreException(new Status(IStatus.ERROR, JavaPlugin.getPluginId(), 0, exception.getLocalizedMessage(), exception)); |
| } |
| } finally { |
| if (stream != null) { |
| try { |
| stream.close(); |
| } catch (IOException exception) { |
| // Do nothing |
| } |
| } |
| } |
| } |
| |
| /** |
| * Creates a package fragment with the given name. |
| * |
| * @param store |
| * the file store |
| * @param name |
| * the name of the package |
| * @param monitor |
| * the progress monitor to use |
| * @throws CoreException |
| * if an error occurs while creating the package fragment |
| */ |
| protected void createPackageFragment(final IFileStore store, final String name, final IProgressMonitor monitor) throws CoreException { |
| store.mkdir(EFS.NONE, monitor); |
| } |
| |
| /** |
| * Returns the operation label. |
| * |
| * @return the operation label |
| */ |
| protected abstract String getOperationLabel(); |
| |
| /** |
| * Runs the stub generation on the specified class file. |
| * |
| * @param file |
| * the class file |
| * @param parent |
| * the parent store |
| * @param monitor |
| * the progress monitor to use |
| * @throws CoreException |
| * if an error occurs |
| */ |
| protected abstract void run(IClassFile file, IFileStore parent, IProgressMonitor monitor) throws CoreException; |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public void run(IProgressMonitor monitor) throws CoreException { |
| if (monitor == null) |
| monitor= new NullProgressMonitor(); |
| monitor.beginTask(getOperationLabel(), 100 * fPackages.size()); |
| try { |
| final StringBuffer buffer= new StringBuffer(128); |
| for (final Iterator<IPackageFragment> iterator= fPackages.iterator(); iterator.hasNext();) { |
| final IPackageFragment fragment= iterator.next(); |
| final IProgressMonitor subMonitor= new SubProgressMonitor(monitor, 100); |
| final IClassFile[] files= fragment.getClassFiles(); |
| final int size= files.length; |
| subMonitor.beginTask(getOperationLabel(), size * 50); |
| final String name= fragment.getElementName(); |
| IFileStore store= EFS.getStore(fOutputURI); |
| if (!"".equals(name)) { //$NON-NLS-1$ |
| final String pack= name; |
| buffer.setLength(0); |
| buffer.append(name); |
| final int length= buffer.length(); |
| for (int index= 0; index < length; index++) { |
| if (buffer.charAt(index) == '.') |
| buffer.setCharAt(index, '/'); |
| } |
| store= store.getChild(new Path(buffer.toString())); |
| if (!pack.startsWith(".")) //$NON-NLS-1$ |
| createPackageFragment(store, pack, new SubProgressMonitor(subMonitor, 10)); |
| } else |
| createPackageFragment(store, "", new SubProgressMonitor(subMonitor, 10)); //$NON-NLS-1$ |
| final IProgressMonitor subsubMonitor= new SubProgressMonitor(subMonitor, 30); |
| try { |
| subsubMonitor.beginTask(getOperationLabel(), size * 100); |
| for (int index= 0; index < size; index++) { |
| if (subMonitor.isCanceled()) |
| throw new OperationCanceledException(); |
| run(files[index], store, new SubProgressMonitor(subsubMonitor, 100)); |
| } |
| } finally { |
| subsubMonitor.done(); |
| } |
| } |
| } finally { |
| monitor.done(); |
| } |
| } |
| } |