Java tutorial
/******************************************************************************* * Copyright (c) 2006, 2007 g-Eclipse Consortium * 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 * * Initial development of the original code was made for the g-Eclipse project * funded by European Union project number: FP6-IST-034327 * http://www.geclipse.eu/ * * Contributors: * RUR (http://acet.rdg.ac.uk/) * - Ashish Thandavan - initial API and implementation ******************************************************************************/ package eu.geclipse.workflow.ui.wizards; import java.io.IOException; import java.util.LinkedList; import java.util.List; 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 eu.geclipse.workflow.ui.edit.parts.WorkflowEditPart; import eu.geclipse.workflow.ui.editor.WorkflowDiagramEditorUtil; import eu.geclipse.workflow.ui.internal.WorkflowDiagramEditorPlugin; import eu.geclipse.workflow.ui.part.Messages; import eu.geclipse.workflow.ui.part.ModelElementSelectionPage; import eu.geclipse.workflow.ui.part.WorkflowVisualIDRegistry; /** * @generated */ public class WorkflowNewDiagramFileWizard extends Wizard { /** * @generated */ private WizardNewFileCreationPage myFileCreationPage; /** * @generated */ private ModelElementSelectionPage diagramRootElementSelectionPage; /** * @generated */ private TransactionalEditingDomain myEditingDomain; /** * @generated NOT */ public WorkflowNewDiagramFileWizard(URI domainModelURI, EObject diagramRoot, TransactionalEditingDomain editingDomain) { assert domainModelURI != null : "Domain model uri must be specified"; //$NON-NLS-1$ assert diagramRoot != null : "Diagram root element must be specified"; //$NON-NLS-1$ assert editingDomain != null : "Editing domain must be specified"; //$NON-NLS-1$ this.myFileCreationPage = new WizardNewFileCreationPage( Messages.getString("WorkflowNewDiagramFileWizard_CreationPageName"), //$NON-NLS-1$ StructuredSelection.EMPTY); this.myFileCreationPage.setTitle(Messages.getString("WorkflowNewDiagramFileWizard_CreationPageTitle")); //$NON-NLS-1$ this.myFileCreationPage .setDescription(NLS.bind(Messages.getString("WorkflowNewDiagramFileWizard_CreationPageDescription"), //$NON-NLS-1$ WorkflowEditPart.MODEL_ID)); IPath filePath; String fileName = 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); //$NON-NLS-1$ } this.myFileCreationPage.setContainerFullPath(filePath); this.myFileCreationPage .setFileName(WorkflowDiagramEditorUtil.getUniqueFileName(filePath, fileName, "workflow")); //$NON-NLS-1$ this.diagramRootElementSelectionPage = new DiagramRootElementSelectionPage( Messages.getString("WorkflowNewDiagramFileWizard_RootSelectionPageName")); //$NON-NLS-1$ this.diagramRootElementSelectionPage .setTitle(Messages.getString("WorkflowNewDiagramFileWizard_RootSelectionPageTitle")); //$NON-NLS-1$ this.diagramRootElementSelectionPage .setDescription(Messages.getString("WorkflowNewDiagramFileWizard_RootSelectionPageDescription")); //$NON-NLS-1$ this.diagramRootElementSelectionPage.setModelElement(diagramRoot); this.myEditingDomain = editingDomain; } /** * @generated */ @Override public void addPages() { addPage(this.myFileCreationPage); addPage(this.diagramRootElementSelectionPage); } /** * @generated NOT */ @Override public boolean performFinish() { List<IFile> affectedFiles = new LinkedList<IFile>(); IFile diagramFile = this.myFileCreationPage.createNewFile(); WorkflowDiagramEditorUtil.setCharset(diagramFile); affectedFiles.add(diagramFile); URI diagramModelURI = URI.createPlatformResourceURI(diagramFile.getFullPath().toString(), true); ResourceSet resourceSet = this.myEditingDomain.getResourceSet(); final Resource diagramResource = resourceSet.createResource(diagramModelURI); AbstractTransactionalCommand command = new AbstractTransactionalCommand(this.myEditingDomain, Messages.getString("WorkflowNewDiagramFileWizard_InitDiagramCommand"), //$NON-NLS-1$ affectedFiles) { @Override protected CommandResult doExecuteWithResult(IProgressMonitor monitor, IAdaptable info) throws ExecutionException { int diagramVID = WorkflowVisualIDRegistry.getDiagramVisualID( WorkflowNewDiagramFileWizard.this.diagramRootElementSelectionPage.getModelElement()); if (diagramVID != WorkflowEditPart.VISUAL_ID) { return CommandResult.newErrorCommandResult( Messages.getString("WorkflowNewDiagramFileWizard_IncorrectRootError")); //$NON-NLS-1$ } Diagram diagram = ViewService.createDiagram( WorkflowNewDiagramFileWizard.this.diagramRootElementSelectionPage.getModelElement(), WorkflowEditPart.MODEL_ID, WorkflowDiagramEditorPlugin.DIAGRAM_PREFERENCES_HINT); diagramResource.getContents().add(diagram); diagramResource.getContents().add(diagram.getElement()); return CommandResult.newOKCommandResult(); } }; try { OperationHistoryFactory.getOperationHistory().execute(command, new NullProgressMonitor(), null); diagramResource.save(WorkflowDiagramEditorUtil.getSaveOptions()); WorkflowDiagramEditorUtil.openDiagram(diagramResource); } catch (ExecutionException e) { WorkflowDiagramEditorPlugin.getInstance() .logError(Messages.getString("WorkflowInitDiagramFileAction_UnableToCreateModelAndDiagram"), e); //$NON-NLS-1$ } catch (IOException ex) { WorkflowDiagramEditorPlugin.getInstance().logError( Messages.getString("WorkflowInitDiagramFileAction_SaveOperationFailedFor") + diagramModelURI, //$NON-NLS-1$ ex); } catch (PartInitException ex) { WorkflowDiagramEditorPlugin.getInstance() .logError(Messages.getString("WorkflowInitDiagramFileAction_UnableToOpenEditor"), ex); //$NON-NLS-1$ } return true; } /** * @generated */ private static class DiagramRootElementSelectionPage extends ModelElementSelectionPage { /** * @generated */ protected DiagramRootElementSelectionPage(String pageName) { super(pageName); } /** * @generated NOT */ @Override protected String getSelectionTitle() { return Messages.getString("WorkflowNewDiagramFileWizard_RootSelectionPageSelectionTitle"); //$NON-NLS-1$ } /** * @generated NOT */ @Override protected boolean validatePage() { if (this.selectedModelElement == null) { setErrorMessage( Messages.getString("WorkflowNewDiagramFileWizard_RootSelectionPageNoSelectionMessage")); //$NON-NLS-1$ return false; } boolean result = ViewService.getInstance() .provides(new CreateDiagramViewOperation(new EObjectAdapter(this.selectedModelElement), WorkflowEditPart.MODEL_ID, WorkflowDiagramEditorPlugin.DIAGRAM_PREFERENCES_HINT)); setErrorMessage(result ? null : Messages.getString("WorkflowNewDiagramFileWizard_RootSelectionPageInvalidSelectionMessage")); //$NON-NLS-1$ return result; } } }