Java tutorial
/** * This file Copyright (c) 2005-2008 Aptana, Inc. This program is * dual-licensed under both the Aptana Public License and the GNU General * Public license. You may elect to use one or the other of these licenses. * * This program is distributed in the hope that it will be useful, but * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or * NONINFRINGEMENT. Redistribution, except as permitted by whichever of * the GPL or APL youelect, is prohibited. * * 1. For the GPL license (GPL), you can redistribute and/or modify this * program under the terms of the GNU General Public License, * Version 3, as published by the Free Software Foundation. You should * have received a copy of the GNU General Public License, Version 3 along * with this program; if not, write to the Free Software Foundation, Inc., 51 * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Aptana provides a special exception to allow redistribution of this file * with certain other free and open source software ("FOSS") code and certain additional terms * pursuant to Section 7 of the GPL. You may view the exception and these * terms on the web at http://www.aptana.com/legal/gpl/. * * 2. For the Aptana Public License (APL), this program and the * accompanying materials are made available under the terms of the APL * v1.0 which accompanies this distribution, and is available at * http://www.aptana.com/legal/apl/. * * You may view the GPL, Aptana's exception and additional terms, and the * APL in the file titled license.html at the root of the corresponding * plugin containing this source file. * * Any modifications to this file must keep this entire header intact. */ package com.aptana.ide.editor.erb.wizards; import java.io.PrintWriter; import java.io.StringWriter; import java.lang.reflect.InvocationTargetException; import org.eclipse.core.resources.IContainer; import org.eclipse.core.resources.IFile; import org.eclipse.core.resources.IProject; import org.eclipse.core.resources.IResource; import org.eclipse.core.resources.IWorkspaceRoot; import org.eclipse.core.resources.ResourcesPlugin; import org.eclipse.core.runtime.CoreException; import org.eclipse.core.runtime.IAdaptable; import org.eclipse.core.runtime.IPath; import org.eclipse.core.runtime.IProgressMonitor; import org.eclipse.core.runtime.IStatus; import org.eclipse.core.runtime.Path; import org.eclipse.core.runtime.Status; import org.eclipse.jface.dialogs.MessageDialog; import org.eclipse.jface.operation.IRunnableWithProgress; import org.eclipse.jface.preference.IPreferenceStore; import org.eclipse.jface.viewers.ISelection; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.ui.IEditorPart; import org.eclipse.ui.INewWizard; import org.eclipse.ui.IWorkbenchPage; import org.eclipse.ui.PartInitException; import org.eclipse.ui.PlatformUI; import org.eclipse.ui.ide.IDE; import org.osgi.framework.Version; import org.radrails.rails.internal.core.RailsPlugin; import org.rubypeople.rdt.core.IRubyElement; import org.rubypeople.rdt.core.ISourceFolder; import org.rubypeople.rdt.core.RubyCore; import com.aptana.ide.core.StringUtils; import com.aptana.ide.editor.erb.ERBPlugin; import com.aptana.ide.editor.erb.preferences.IPreferenceConstants; import com.aptana.ide.editors.unified.IUnifiedEditor; import com.aptana.ide.editors.wizards.SimpleNewFileWizard; import com.aptana.ide.editors.wizards.SimpleNewWizardPage; /** * @author Chris Williams */ public class ERBNewFileWizard extends SimpleNewFileWizard implements INewWizard { private static final String HTML_ERB = ".html.erb"; private static final String RHTML = ".rhtml"; /** * ERBNewFileWizard */ public ERBNewFileWizard() { super(); this.setWindowTitle(Messages.ERBNewFileWizard_Window_Title); } /** * @see com.aptana.ide.editors.wizards.SimpleNewFileWizard#createNewFilePage(org.eclipse.jface.viewers.ISelection) */ protected SimpleNewWizardPage createNewFilePage(ISelection selection) { SimpleNewWizardPage page = new SimpleNewWizardPage(selection); page.setRequiredFileExtensions(new String[] { "erb", "rhtml" }); //$NON-NLS-1$ page.setTitle(Messages.ERBNewFileWizard_Filename); page.setDescription(Messages.ERBNewFileWizard_Description); IPreferenceStore store = ERBPlugin.getDefault().getPreferenceStore(); String filename = store.getString(IPreferenceConstants.ERBEDITOR_INITIAL_FILE_NAME); String extension = getProperExtension(selection); if (extension != null) { IPath path = new Path(filename); String oldExtension = path.getFileExtension(); int toRemove = 0; if (oldExtension != null) toRemove = oldExtension.length() + 1; filename = filename.substring(0, filename.length() - toRemove) + extension; } page.setDefaultFileName(filename); return page; } private String getProperExtension(ISelection selection) { String extension = null; if (selection instanceof IStructuredSelection) { IStructuredSelection structured = (IStructuredSelection) selection; Object first = structured.getFirstElement(); if (!(first instanceof IResource) && (first instanceof IAdaptable)) { IAdaptable adaptable = (IAdaptable) first; Object resource = adaptable.getAdapter(IResource.class); if (resource != null) { first = resource; } } if (first instanceof IResource) { IResource res = (IResource) first; IProject proj = res.getProject(); String version = RailsPlugin.getRailsVersion(proj); if (version == null) return HTML_ERB; Version yeah = new Version(version); if (yeah.getMajor() >= 2) extension = HTML_ERB; else extension = RHTML; } } return extension; } /** * @see com.aptana.ide.editors.wizards.SimpleNewFileWizard#getInitialFileContents() */ protected String getInitialFileContents() { StringWriter sw = new StringWriter(); PrintWriter pw = new PrintWriter(sw); IPreferenceStore store = ERBPlugin.getDefault().getPreferenceStore(); String contents = store.getString(IPreferenceConstants.ERBEDITOR_INITIAL_CONTENTS); pw.println(contents); pw.close(); return sw.toString(); } private void doFinish(String containerName, String fileName, IProgressMonitor monitor) throws CoreException { // create a sample file monitor.beginTask(com.aptana.ide.editors.wizards.Messages.SimpleNewFileWizard_Creating + fileName, 2); IWorkspaceRoot root = ResourcesPlugin.getWorkspace().getRoot(); IResource resource = root.findMember(new Path(containerName)); if (!resource.exists() || !(resource instanceof IContainer)) { throwCoreException(StringUtils.format( com.aptana.ide.editors.wizards.Messages.SimpleNewFileWizard_ContainerDoesNotExist, containerName)); } IContainer container = (IContainer) resource; IPath filePath = new Path(fileName); final IFile file = container.getFile(filePath); IRubyElement rubyContainer = RubyCore.create(resource); String source = getInitialFileContents(); if (rubyContainer instanceof ISourceFolder) { ISourceFolder folder = (ISourceFolder) rubyContainer; folder.createRubyScript(filePath.lastSegment(), source, true, monitor); } monitor.worked(1); monitor.setTaskName(com.aptana.ide.editors.wizards.Messages.SimpleNewFileWizard_OpeningFileForEditing); getShell().getDisplay().asyncExec(new Runnable() { public void run() { IWorkbenchPage page = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage(); try { IEditorPart part = IDE.openEditor(page, file, true); if (part instanceof IUnifiedEditor) { IUnifiedEditor te = (IUnifiedEditor) part; te.getViewer().getTextWidget().setCaretOffset(getInitialCaretOffset()); // TODO: IM Fix // te.setParentDirectoryHint(FileExplorerView.lastSelected); } } catch (PartInitException e) { } } }); monitor.worked(1); } // FIXME Allow overriding the doFinish method (make it protected in superclass!) public boolean performFinish() { SimpleNewWizardPage page = (SimpleNewWizardPage) getPages()[0]; final String containerName = page.getContainerName(); final String fileName = page.getFileName(); IRunnableWithProgress op = new IRunnableWithProgress() { public void run(IProgressMonitor monitor) throws InvocationTargetException { try { doFinish(containerName, fileName, monitor); } catch (CoreException e) { throw new InvocationTargetException(e); } finally { monitor.done(); } } }; try { getContainer().run(true, false, op); } catch (InterruptedException e) { return false; } catch (InvocationTargetException e) { Throwable realException = e.getTargetException(); MessageDialog.openError(getShell(), com.aptana.ide.editors.wizards.Messages.SimpleNewFileWizard_Error, realException.getMessage()); return false; } return true; } // FIXME Make this method protected in superclass so we can just call it! private void throwCoreException(String message) throws CoreException { IStatus status = new Status(IStatus.ERROR, "com.aptana.ide.core.ui", IStatus.OK, message, null); //$NON-NLS-1$ throw new CoreException(status); } }