Java tutorial
/************************************************************************************** * Copyright (c) 2005, 2006 Generative Software Development Lab, University of Waterloo * 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: * 1. Generative Software Development Lab, University of Waterloo, * http://gp.uwaterloo.ca - initial API and implementation **************************************************************************************/ package ca.uwaterloo.gp.fmp.presentation; import java.util.ArrayList; import java.util.Collections; import java.util.HashMap; import java.util.Iterator; import java.util.List; import java.util.Map; import java.util.MissingResourceException; import java.util.StringTokenizer; import org.eclipse.core.resources.IContainer; import org.eclipse.core.resources.IFile; import org.eclipse.core.resources.IFolder; import org.eclipse.core.resources.IProject; import org.eclipse.core.resources.IResource; import org.eclipse.core.resources.ResourcesPlugin; import org.eclipse.core.runtime.IProgressMonitor; import org.eclipse.core.runtime.Path; import org.eclipse.emf.common.util.URI; import org.eclipse.emf.ecore.EClass; import org.eclipse.emf.ecore.EClassifier; import org.eclipse.emf.ecore.EObject; import org.eclipse.emf.ecore.resource.Resource; import org.eclipse.emf.ecore.resource.ResourceSet; import org.eclipse.emf.ecore.resource.impl.ResourceSetImpl; import org.eclipse.emf.ecore.xmi.XMLResource; import org.eclipse.emf.edit.ui.provider.ExtendedImageRegistry; import org.eclipse.jface.dialogs.MessageDialog; import org.eclipse.jface.viewers.ISelection; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jface.viewers.StructuredSelection; import org.eclipse.jface.wizard.Wizard; import org.eclipse.jface.wizard.WizardPage; import org.eclipse.swt.SWT; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Combo; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Label; import org.eclipse.ui.INewWizard; import org.eclipse.ui.IWorkbench; import org.eclipse.ui.IWorkbenchPage; import org.eclipse.ui.IWorkbenchPart; import org.eclipse.ui.IWorkbenchWindow; import org.eclipse.ui.PartInitException; import org.eclipse.ui.actions.WorkspaceModifyOperation; import org.eclipse.ui.dialogs.WizardNewFileCreationPage; import org.eclipse.ui.part.FileEditorInput; import org.eclipse.ui.part.ISetSelectionTarget; import ca.uwaterloo.gp.fmp.FmpFactory; import ca.uwaterloo.gp.fmp.FmpPackage; import ca.uwaterloo.gp.fmp.provider.fmpEditPlugin; import ca.uwaterloo.gp.fmp.system.MetaModel; import org.eclipse.core.internal.resources.*; import org.eclipse.core.internal.utils.Messages; import org.eclipse.core.runtime.*; import org.eclipse.core.runtime.jobs.IJobManager; import org.eclipse.core.runtime.jobs.Job; /** * @author Michal Antkiewicz <mantkiew@swen.uwaterloo.ca> * This is a simple wizard for creating a new model file. * <!-- begin-user-doc --> * <!-- end-user-doc --> * @generated */ public class FmpModelWizard extends Wizard implements INewWizard { /** * This caches an instance of the model package. * <!-- begin-user-doc --> * <!-- end-user-doc --> * @generated */ protected FmpPackage fmpPackage = FmpPackage.eINSTANCE; /** * This caches an instance of the model factory. * <!-- begin-user-doc --> * <!-- end-user-doc --> * @generated */ protected FmpFactory fmpFactory = fmpPackage.getFmpFactory(); /** * This is the file creation page. * <!-- begin-user-doc --> * <!-- end-user-doc --> * @generated */ protected FmpModelWizardNewFileCreationPage newFileCreationPage; /** * This is the file creation page. * <!-- begin-user-doc --> * <!-- end-user-doc --> * @generated */ protected FmpModelWizardInitialObjectCreationPage initialObjectCreationPage; /** * Remember the selection during initialization for populating the default container. * <!-- begin-user-doc --> * <!-- end-user-doc --> * @generated */ protected IStructuredSelection selection; /** * Remember the workbench during initialization. * <!-- begin-user-doc --> * <!-- end-user-doc --> * @generated */ protected IWorkbench workbench; /** * This just records the information. * <!-- begin-user-doc --> * <!-- end-user-doc --> * @generated */ public void init(IWorkbench workbench, IStructuredSelection selection) { this.workbench = workbench; this.selection = selection; setWindowTitle(fmpEditPlugin.INSTANCE.getString("_UI_Wizard_label")); setDefaultPageImageDescriptor(ExtendedImageRegistry.INSTANCE .getImageDescriptor(fmpEditPlugin.INSTANCE.getImage("full/wizban/NewFmp"))); } /** * Create a new model. * <!-- begin-user-doc --> * <!-- end-user-doc --> * @generated NOT */ EObject createInitialModel() { return MetaModel.makeProject(); } /** * Do the work after everything is specified. * <!-- begin-user-doc --> * <!-- end-user-doc --> * @generated NOT */ public boolean performFinish() { try { // Remember the file. // final IFile modelFile = getModelFile(); // Do the work within an operation. // WorkspaceModifyOperation operation = new WorkspaceModifyOperation() { protected void execute(IProgressMonitor progressMonitor) { try { // Create a resource set // ResourceSet resourceSet = new ResourceSetImpl(); // Get the URI of the model file. // URI fileURI = URI.createPlatformResourceURI(modelFile.getFullPath().toString()); // Create a resource for this file. // Resource resource = resourceSet.createResource(fileURI); // Add the initial model object to the contents. // EObject rootObject = createInitialModel(); if (rootObject != null) { resource.getContents().add(rootObject); } // Save the contents of the resource to the file system. // Map options = new HashMap(); options.put(XMLResource.OPTION_ENCODING, "ASCII"); resource.save(options); } catch (Exception exception) { fmpEditPlugin.INSTANCE.log(exception); } finally { progressMonitor.done(); } } }; getContainer().run(false, false, operation); // Select the new file resource in the current view. // IWorkbenchWindow workbenchWindow = workbench.getActiveWorkbenchWindow(); IWorkbenchPage page = workbenchWindow.getActivePage(); final IWorkbenchPart activePart = page.getActivePart(); if (activePart instanceof ISetSelectionTarget) { final ISelection targetSelection = new StructuredSelection(modelFile); getShell().getDisplay().asyncExec(new Runnable() { public void run() { ((ISetSelectionTarget) activePart).selectReveal(targetSelection); } }); } // Open an editor on the new file. // try { page.openEditor(new FileEditorInput(modelFile), workbench.getEditorRegistry().getDefaultEditor(modelFile.getFullPath().toString()).getId()); } catch (PartInitException exception) { MessageDialog.openError(workbenchWindow.getShell(), fmpEditPlugin.INSTANCE.getString("_UI_OpenEditorError_label"), exception.getMessage()); return false; } return true; } catch (Exception exception) { fmpEditPlugin.INSTANCE.log(exception); return false; } } /** * This is the one page of the wizard. * <!-- begin-user-doc --> * <!-- end-user-doc --> * @generated */ public class FmpModelWizardNewFileCreationPage extends WizardNewFileCreationPage { /** * Remember the model file. * <!-- begin-user-doc --> * <!-- end-user-doc --> * @generated */ protected IFile modelFile; /** * Pass in the selection. * <!-- begin-user-doc --> * <!-- end-user-doc --> * @generated */ public FmpModelWizardNewFileCreationPage(String pageId, IStructuredSelection selection) { super(pageId, selection); } /** * The framework calls this to see if the file is correct. * <!-- begin-user-doc --> * <!-- end-user-doc --> * @generated */ protected boolean validatePage() { if (super.validatePage()) { // Make sure the file ends in ".fmp". // String requiredExt = fmpEditPlugin.INSTANCE.getString("_UI_FmpEditorFilenameExtension"); String enteredExt = new Path(getFileName()).getFileExtension(); if (enteredExt == null || !enteredExt.equals(requiredExt)) { setErrorMessage(fmpEditPlugin.INSTANCE.getString("_WARN_FilenameExtension", new Object[] { requiredExt })); return false; } else { return true; } } else { return false; } } /** * Store the dialog field settings upon completion. * <!-- begin-user-doc --> * <!-- end-user-doc --> * @generated */ public boolean performFinish() { modelFile = getModelFile(); return true; } /** * <!-- begin-user-doc --> * <!-- end-user-doc --> * @generated */ public IFile getModelFile() { return modelFile == null ? ResourcesPlugin.getWorkspace().getRoot().getFile(getContainerFullPath().append(getFileName())) : modelFile; } } /** * This is the page where the type of object to create is selected. * <!-- begin-user-doc --> * <!-- end-user-doc --> * @generated */ public class FmpModelWizardInitialObjectCreationPage extends WizardPage { /** * <!-- begin-user-doc --> * <!-- end-user-doc --> * @generated */ protected String initialObjectName; /** * <!-- begin-user-doc --> * <!-- end-user-doc --> * @generated */ protected Combo initialObjectField; /** * @generated * <!-- begin-user-doc --> * <!-- end-user-doc --> */ protected String encoding; /** * <!-- begin-user-doc --> * <!-- end-user-doc --> * @generated */ protected Combo encodingField; /** * Pass in the selection. * <!-- begin-user-doc --> * <!-- end-user-doc --> * @generated */ public FmpModelWizardInitialObjectCreationPage(String pageId) { super(pageId); } /** * <!-- begin-user-doc --> * <!-- end-user-doc --> * @generated */ public void createControl(Composite parent) { Composite composite = new Composite(parent, SWT.NONE); { GridLayout layout = new GridLayout(); layout.numColumns = 1; layout.verticalSpacing = 12; composite.setLayout(layout); GridData data = new GridData(); data.verticalAlignment = GridData.FILL; data.grabExcessVerticalSpace = true; data.horizontalAlignment = GridData.FILL; composite.setLayoutData(data); } Label containerLabel = new Label(composite, SWT.LEFT); { containerLabel.setText(fmpEditPlugin.INSTANCE.getString("_UI_ModelObject")); GridData data = new GridData(); data.horizontalAlignment = GridData.FILL; containerLabel.setLayoutData(data); } initialObjectField = new Combo(composite, SWT.BORDER); { GridData data = new GridData(); data.horizontalAlignment = GridData.FILL; data.grabExcessHorizontalSpace = true; initialObjectField.setLayoutData(data); } List objectNames = new ArrayList(); for (Iterator classifier = fmpPackage.getEClassifiers().iterator(); classifier.hasNext();) { EClassifier eClassifier = (EClassifier) classifier.next(); if (eClassifier instanceof EClass) { EClass eClass = (EClass) eClassifier; if (!eClass.isAbstract()) { objectNames.add(getLabel(eClass)); } } } Collections.sort(objectNames, java.text.Collator.getInstance()); for (Iterator i = objectNames.iterator(); i.hasNext();) { String objectName = (String) i.next(); initialObjectField.add(objectName); } initialObjectField.addSelectionListener(new SelectionAdapter() { public void widgetSelected(SelectionEvent e) { setPageComplete(isPageComplete()); } }); Label encodingLabel = new Label(composite, SWT.LEFT); { encodingLabel.setText(fmpEditPlugin.INSTANCE.getString("_UI_XMLEncoding")); GridData data = new GridData(); data.horizontalAlignment = GridData.FILL; encodingLabel.setLayoutData(data); } encodingField = new Combo(composite, SWT.BORDER); { GridData data = new GridData(); data.horizontalAlignment = GridData.FILL; data.grabExcessHorizontalSpace = true; encodingField.setLayoutData(data); } for (StringTokenizer stringTokenizer = new StringTokenizer( fmpEditPlugin.INSTANCE.getString("_UI_XMLEncodingChoices")); stringTokenizer.hasMoreTokens();) { encodingField.add(stringTokenizer.nextToken()); } encodingField.select(0); setControl(composite); } /** * The framework calls this to see if the file is correct. * <!-- begin-user-doc --> * <!-- end-user-doc --> * @generated */ public boolean isPageComplete() { if (super.isPageComplete()) { return initialObjectField.getSelectionIndex() != -1; } else { return false; } } /** * Store the dialog field settings upon completion. * <!-- begin-user-doc --> * <!-- end-user-doc --> * @generated */ public boolean performFinish() { initialObjectName = getInitialObjectName(); encoding = getEncoding(); return true; } /** * <!-- begin-user-doc --> * <!-- end-user-doc --> * @generated */ public String getInitialObjectName() { if (initialObjectName != null) { return initialObjectName; } else { String label = initialObjectField.getText(); for (Iterator classifier = fmpPackage.getEClassifiers().iterator(); classifier.hasNext();) { EClassifier eClassifier = (EClassifier) classifier.next(); if (eClassifier instanceof EClass) { EClass eClass = (EClass) eClassifier; if (!eClass.isAbstract() && getLabel(eClass).equals(label)) { return eClass.getName(); } } } return label; } } /** * <!-- begin-user-doc --> * <!-- end-user-doc --> * @generated */ public String getEncoding() { return encoding == null ? encodingField.getText() : encoding; } /** * Returns the label of the specified element. * <!-- begin-user-doc --> * <!-- end-user-doc --> * @generated */ protected String getLabel(EClass eClass) { String name = eClass.getName(); try { return fmpEditPlugin.INSTANCE.getString("_UI_" + name + "_type"); } catch (MissingResourceException mre) { } return name; } } /** * The framework calls this to create the contents of the wizard. * <!-- begin-user-doc --> * <!-- end-user-doc --> * @generated NOT */ public void addPages() { // Create a page, set the title, and the initial model file name. // newFileCreationPage = new FmpModelWizardNewFileCreationPage("Whatever", selection); newFileCreationPage.setTitle(fmpEditPlugin.INSTANCE.getString("_UI_FmpModelWizard_label")); newFileCreationPage.setDescription(fmpEditPlugin.INSTANCE.getString("_UI_FmpModelWizard_description")); newFileCreationPage.setFileName(fmpEditPlugin.INSTANCE.getString("_UI_FmpEditorFilenameDefaultBase") + "." + fmpEditPlugin.INSTANCE.getString("_UI_FmpEditorFilenameExtension")); addPage(newFileCreationPage); // Try and get the resource selection to determine a current directory for the file dialog. // if (selection != null && !selection.isEmpty()) { // Get the resource... // Object selectedElement = selection.iterator().next(); if (selectedElement instanceof IResource) { // Get the resource parent, if its a file. // IResource selectedResource = (IResource) selectedElement; if (selectedResource.getType() == IResource.FILE) { selectedResource = selectedResource.getParent(); } // This gives us a directory... // if (selectedResource instanceof IFolder || selectedResource instanceof IProject) { // Set this for the container. // newFileCreationPage.setContainerFullPath(selectedResource.getFullPath()); // Make up a unique new name here. // String defaultModelBaseFilename = fmpEditPlugin.INSTANCE .getString("_UI_FmpEditorFilenameDefaultBase"); String defaultModelFilenameExtension = fmpEditPlugin.INSTANCE .getString("_UI_FmpEditorFilenameExtension"); String modelFilename = defaultModelBaseFilename + "." + defaultModelFilenameExtension; for (int i = 1; ((IContainer) selectedResource).findMember(modelFilename) != null; ++i) { modelFilename = defaultModelBaseFilename + i + "." + defaultModelFilenameExtension; } newFileCreationPage.setFileName(modelFilename); } } } /*initialObjectCreationPage = new FmpModelWizardInitialObjectCreationPage("Whatever2"); initialObjectCreationPage.setTitle(fmpEditPlugin.INSTANCE.getString("_UI_FmpModelWizard_label")); initialObjectCreationPage.setDescription(fmpEditPlugin.INSTANCE.getString("_UI_Wizard_initial_object_description")); addPage(initialObjectCreationPage);*/ } /** * Get the file from the page. * <!-- begin-user-doc --> * <!-- end-user-doc --> * @generated */ public IFile getModelFile() { return newFileCreationPage.getModelFile(); } }