Java tutorial
/******************************************************************************* * Copyright (c) 2011 Lab-STICC Universite de Bretagne Sud, Lorient. * All rights reserved. This program and the accompanying materials * are made available under the terms of the CeCILL-B license available * at : * en : http://www.cecill.info/licences/Licence_CeCILL-B_V1-en.html * fr : http://www.cecill.info/licences/Licence_CeCILL-B_V1-fr.html * * Contributors: * Dominique BLOUIN (Lab-STICC UBS), dominique.blouin@univ-ubs.fr ******************************************************************************/ package fr.openpeople.rdal.model.core.diagram.part; import java.io.IOException; import java.util.LinkedList; import org.eclipse.core.commands.ExecutionException; import org.eclipse.core.commands.operations.OperationHistoryFactory; import org.eclipse.core.resources.IFile; import org.eclipse.core.runtime.IAdaptable; import org.eclipse.core.runtime.IPath; import org.eclipse.core.runtime.IProgressMonitor; import org.eclipse.core.runtime.NullProgressMonitor; import org.eclipse.core.runtime.Path; import org.eclipse.emf.common.util.URI; import org.eclipse.emf.ecore.EObject; import org.eclipse.emf.ecore.resource.Resource; import org.eclipse.emf.ecore.resource.ResourceSet; import org.eclipse.emf.transaction.TransactionalEditingDomain; import org.eclipse.gmf.runtime.common.core.command.CommandResult; import org.eclipse.gmf.runtime.diagram.core.services.ViewService; import org.eclipse.gmf.runtime.diagram.core.services.view.CreateDiagramViewOperation; import org.eclipse.gmf.runtime.emf.commands.core.command.AbstractTransactionalCommand; import org.eclipse.gmf.runtime.emf.core.util.EObjectAdapter; import org.eclipse.gmf.runtime.notation.Diagram; import org.eclipse.jface.viewers.StructuredSelection; import org.eclipse.jface.wizard.Wizard; import org.eclipse.osgi.util.NLS; import org.eclipse.ui.PartInitException; import org.eclipse.ui.dialogs.WizardNewFileCreationPage; import fr.openpeople.rdal.model.core.diagram.edit.parts.SpecificationEditPart; /** * @generated */ public class RdalNewDiagramFileWizard extends Wizard { /** * @generated */ private WizardNewFileCreationPage myFileCreationPage; /** * @generated */ private ModelElementSelectionPage diagramRootElementSelectionPage; /** * @generated */ private TransactionalEditingDomain myEditingDomain; /** * @generated */ public RdalNewDiagramFileWizard(URI domainModelURI, EObject diagramRoot, TransactionalEditingDomain editingDomain) { assert domainModelURI != null : "Domain model uri must be specified"; //$NON-NLS-1$ assert diagramRoot != null : "Doagram root element must be specified"; //$NON-NLS-1$ assert editingDomain != null : "Editing domain must be specified"; //$NON-NLS-1$ myFileCreationPage = new WizardNewFileCreationPage(Messages.RdalNewDiagramFileWizard_CreationPageName, StructuredSelection.EMPTY); myFileCreationPage.setTitle(Messages.RdalNewDiagramFileWizard_CreationPageTitle); myFileCreationPage.setDescription(NLS.bind(Messages.RdalNewDiagramFileWizard_CreationPageDescription, SpecificationEditPart.MODEL_ID)); IPath filePath; String fileName = URI.decode(domainModelURI.trimFileExtension().lastSegment()); if (domainModelURI.isPlatformResource()) { filePath = new Path(domainModelURI.trimSegments(1).toPlatformString(true)); } else if (domainModelURI.isFile()) { filePath = new Path(domainModelURI.trimSegments(1).toFileString()); } else { // TODO : use some default path throw new IllegalArgumentException("Unsupported URI: " + domainModelURI); //$NON-NLS-1$ } myFileCreationPage.setContainerFullPath(filePath); myFileCreationPage.setFileName(RdalDiagramEditorUtil.getUniqueFileName(filePath, fileName, "rdal_diagram")); //$NON-NLS-1$ diagramRootElementSelectionPage = new DiagramRootElementSelectionPage( Messages.RdalNewDiagramFileWizard_RootSelectionPageName); diagramRootElementSelectionPage.setTitle(Messages.RdalNewDiagramFileWizard_RootSelectionPageTitle); diagramRootElementSelectionPage .setDescription(Messages.RdalNewDiagramFileWizard_RootSelectionPageDescription); diagramRootElementSelectionPage.setModelElement(diagramRoot); myEditingDomain = editingDomain; } /** * @generated */ public void addPages() { addPage(myFileCreationPage); addPage(diagramRootElementSelectionPage); } /** * @generated */ public boolean performFinish() { LinkedList<IFile> affectedFiles = new LinkedList<IFile>(); IFile diagramFile = myFileCreationPage.createNewFile(); RdalDiagramEditorUtil.setCharset(diagramFile); affectedFiles.add(diagramFile); URI diagramModelURI = URI.createPlatformResourceURI(diagramFile.getFullPath().toString(), true); ResourceSet resourceSet = myEditingDomain.getResourceSet(); final Resource diagramResource = resourceSet.createResource(diagramModelURI); AbstractTransactionalCommand command = new AbstractTransactionalCommand(myEditingDomain, Messages.RdalNewDiagramFileWizard_InitDiagramCommand, affectedFiles) { protected CommandResult doExecuteWithResult(IProgressMonitor monitor, IAdaptable info) throws ExecutionException { int diagramVID = RdalVisualIDRegistry .getDiagramVisualID(diagramRootElementSelectionPage.getModelElement()); if (diagramVID != SpecificationEditPart.VISUAL_ID) { return CommandResult .newErrorCommandResult(Messages.RdalNewDiagramFileWizard_IncorrectRootError); } Diagram diagram = ViewService.createDiagram(diagramRootElementSelectionPage.getModelElement(), SpecificationEditPart.MODEL_ID, RdalDiagramEditorPlugin.DIAGRAM_PREFERENCES_HINT); diagramResource.getContents().add(diagram); return CommandResult.newOKCommandResult(); } }; try { OperationHistoryFactory.getOperationHistory().execute(command, new NullProgressMonitor(), null); diagramResource.save(RdalDiagramEditorUtil.getSaveOptions()); RdalDiagramEditorUtil.openDiagram(diagramResource); } catch (ExecutionException e) { RdalDiagramEditorPlugin.getInstance().logError("Unable to create model and diagram", e); //$NON-NLS-1$ } catch (IOException ex) { RdalDiagramEditorPlugin.getInstance().logError("Save operation failed for: " + diagramModelURI, ex); //$NON-NLS-1$ } catch (PartInitException ex) { RdalDiagramEditorPlugin.getInstance().logError("Unable to open editor", ex); //$NON-NLS-1$ } return true; } /** * @generated */ private static class DiagramRootElementSelectionPage extends ModelElementSelectionPage { /** * @generated */ protected DiagramRootElementSelectionPage(String pageName) { super(pageName); } /** * @generated */ protected String getSelectionTitle() { return Messages.RdalNewDiagramFileWizard_RootSelectionPageSelectionTitle; } /** * @generated */ protected boolean validatePage() { if (selectedModelElement == null) { setErrorMessage(Messages.RdalNewDiagramFileWizard_RootSelectionPageNoSelectionMessage); return false; } boolean result = ViewService.getInstance() .provides(new CreateDiagramViewOperation(new EObjectAdapter(selectedModelElement), SpecificationEditPart.MODEL_ID, RdalDiagramEditorPlugin.DIAGRAM_PREFERENCES_HINT)); setErrorMessage( result ? null : Messages.RdalNewDiagramFileWizard_RootSelectionPageInvalidSelectionMessage); return result; } } }