| /******************************************************************************* |
| * Copyright (c) 2007, 2010 BMW Car IT, Technische Universitaet Muenchen, 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: |
| * BMW Car IT - Initial API and implementation |
| * Technische Universitaet Muenchen - Major refactoring and extension |
| *******************************************************************************/ |
| package org.eclipse.emf.edapt.history.instantiation.ui; |
| |
| import java.lang.reflect.InvocationTargetException; |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.LinkedHashSet; |
| import java.util.List; |
| import java.util.Set; |
| |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.emf.common.command.Command; |
| import org.eclipse.emf.common.util.URI; |
| import org.eclipse.emf.ecore.EObject; |
| import org.eclipse.emf.ecore.EPackage; |
| import org.eclipse.emf.ecore.presentation.EcoreEditor; |
| import org.eclipse.emf.edapt.history.instantiation.ReleaseCommand; |
| import org.eclipse.emf.edapt.history.instantiation.UpdatePackageNamespaceCommand; |
| import org.eclipse.emf.edapt.history.presentation.HistoryEditorPlugin; |
| import org.eclipse.emf.edapt.history.reconstruction.EcoreForwardReconstructor; |
| import org.eclipse.emf.edapt.history.recorder.EditingDomainListener; |
| import org.eclipse.emf.edapt.internal.common.LoggingUtils; |
| import org.eclipse.emf.edapt.internal.common.MetamodelExtent; |
| import org.eclipse.emf.edapt.spi.history.Change; |
| import org.eclipse.emf.edapt.spi.history.CompositeChange; |
| import org.eclipse.emf.edapt.spi.history.ContentChange; |
| import org.eclipse.emf.edapt.spi.history.History; |
| import org.eclipse.emf.edapt.spi.history.Release; |
| import org.eclipse.emf.edapt.spi.history.ValueChange; |
| import org.eclipse.emf.edit.domain.EditingDomain; |
| import org.eclipse.jface.dialogs.ErrorDialog; |
| import org.eclipse.jface.dialogs.MessageDialog; |
| import org.eclipse.jface.window.Window; |
| import org.eclipse.jface.wizard.WizardDialog; |
| import org.eclipse.swt.widgets.Display; |
| |
| /** |
| * Action to release an new version. |
| * |
| * @author herrmama |
| * @author $Author$ |
| * @version $Rev$ |
| * @levd.rating RED Rev: |
| */ |
| public class ReleaseHandler extends EditingDomainListenerHandlerBase { |
| |
| /** {@inheritDoc} */ |
| @Override |
| protected Object execute(EditingDomainListener listener, EcoreEditor editor) { |
| final MetamodelExtent extent = listener.getExtent(); |
| if (isConsistent(extent)) { |
| release(extent, listener); |
| } |
| return null; |
| } |
| |
| /** Check whether the metamodel is consistent before release. */ |
| private boolean isConsistent(MetamodelExtent extent) { |
| if (extent.isConsistent()) { |
| return true; |
| } |
| final boolean ignore = MessageDialog |
| .openConfirm(Display.getDefault().getActiveShell(), "Metamodel inconsistent", //$NON-NLS-1$ |
| "The metamodel is inconsistent. Do you really want to release it?"); //$NON-NLS-1$ |
| return ignore; |
| } |
| |
| /** Release the metamodel. */ |
| private void release(MetamodelExtent extent, EditingDomainListener listener) { |
| try { |
| final EditingDomain domain = listener.getEditingDomain(); |
| if (!isNsURIChanged(extent, listener.getHistory().getLastRelease())) { |
| final History history = listener.getHistory(); |
| final List<EPackage> rootPackages = history.getRootPackages(); |
| final Set<EPackage> changedPackages = getChangedPackages(history.getLastRelease()); |
| final ReleaseWizard releaseWizard = new ReleaseWizard(rootPackages, changedPackages); |
| final WizardDialog dialog = new WizardDialog(Display.getDefault().getActiveShell(), releaseWizard); |
| if (dialog.open() == Window.OK) { |
| for (final EPackage ePackage : rootPackages) { |
| if (!releaseWizard.updatePackage(ePackage)) { |
| continue; |
| } |
| final String source = releaseWizard.getSource(ePackage); |
| final String target = releaseWizard.getTarget(ePackage); |
| updateNamespaceURI(domain, Collections.singletonList(ePackage), source, target); |
| } |
| addRelease(domain, listener, null); |
| } |
| } else { |
| addRelease(domain, listener, null); |
| } |
| } catch (final InvocationTargetException ex) { |
| ErrorDialog.openError( |
| Display.getDefault().getActiveShell(), |
| "Error during release", //$NON-NLS-1$ |
| "An error occurred during the release. Did you record all changes?", //$NON-NLS-1$ |
| LoggingUtils.createMultiStatus( |
| HistoryEditorPlugin.getPlugin(), |
| IStatus.ERROR, |
| "Exception during reconstruction...", //$NON-NLS-1$ |
| ex.getTargetException())); |
| } |
| } |
| |
| private Set<EPackage> getChangedPackages(Release lastRelease) { |
| final Set<EPackage> packages = new LinkedHashSet<EPackage>(); |
| if (lastRelease == null) { |
| return packages; |
| } |
| final List<Change> changes = lastRelease.getChanges(); |
| collectPackagesFromChanges(packages, changes); |
| return packages; |
| } |
| |
| private void collectPackagesFromChanges(final Set<EPackage> packages, final List<Change> changes) { |
| for (final Change change : changes) { |
| EObject target = null; |
| if (ContentChange.class.isInstance(change)) { |
| target = ContentChange.class.cast(change).getTarget(); |
| } else if (ValueChange.class.isInstance(change)) { |
| target = ValueChange.class.cast(change).getElement(); |
| } |
| if (target != null) { |
| EObject eP = target.eContainer(); |
| while (eP != null) { |
| if (EPackage.class.isInstance(eP)) { |
| packages.add((EPackage) eP); |
| break; |
| } |
| eP = eP.eContainer(); |
| } |
| } |
| if (CompositeChange.class.isInstance(change)) { |
| final List<Change> childChanges = new ArrayList<Change>( |
| CompositeChange.class.cast(change).getChanges()); |
| collectPackagesFromChanges(packages, childChanges); |
| } |
| } |
| } |
| |
| /** Update the namespace URI. */ |
| private void updateNamespaceURI(EditingDomain domain, |
| List<EPackage> rootPackages, String source, String target) { |
| final Command command = new UpdatePackageNamespaceCommand(rootPackages, |
| source, target); |
| domain.getCommandStack().execute(command); |
| } |
| |
| /** Add the new release to the history. */ |
| private void addRelease(EditingDomain domain, |
| EditingDomainListener listener, String target) { |
| final Command command = new ReleaseCommand(listener, target); |
| domain.getCommandStack().execute(command); |
| } |
| |
| /** |
| * Check whether all namespace URIs have changed w.r.t. to a certain |
| * release. |
| * |
| * @throws InvocationTargetException in case the reconstructor throws any exception |
| */ |
| private boolean isNsURIChanged(MetamodelExtent extent, Release release) throws InvocationTargetException { |
| final EcoreForwardReconstructor reconstructor = new EcoreForwardReconstructor( |
| URI.createURI("before")); //$NON-NLS-1$ |
| try { |
| reconstructor.reconstruct(release, true); |
| } catch (final RuntimeException ex) { |
| throw new InvocationTargetException(ex); |
| } |
| return isNsURIChanged(extent.getRootPackages(), reconstructor); |
| } |
| |
| /** |
| * Check whether all namespace URIs have changed w.r.t. to a reconstructed |
| * metamodel version. |
| */ |
| private boolean isNsURIChanged(Collection<EPackage> packages, |
| EcoreForwardReconstructor reconstructor) { |
| for (final EPackage now : packages) { |
| final EPackage before = (EPackage) reconstructor.getMapping().getTarget( |
| now); |
| if (before != null && now.getNsURI().equals(before.getNsURI())) { |
| return false; |
| } |
| if (!isNsURIChanged(now.getESubpackages(), reconstructor)) { |
| return false; |
| } |
| } |
| return true; |
| } |
| } |