| /******************************************************************************* |
| * Copyright (c) 2013, 2014 Obeo. |
| * 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: |
| * Obeo - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.emf.compare.uml2.rcp.ui.internal.accessor; |
| |
| import static com.google.common.collect.Iterables.filter; |
| |
| import com.google.common.base.Predicate; |
| import com.google.common.collect.ImmutableList; |
| |
| import java.util.List; |
| |
| import org.eclipse.emf.common.notify.AdapterFactory; |
| import org.eclipse.emf.compare.Diff; |
| import org.eclipse.emf.compare.Match; |
| import org.eclipse.emf.compare.rcp.ui.internal.contentmergeviewer.accessor.impl.ManyStructuralFeatureAccessorImpl; |
| import org.eclipse.emf.compare.rcp.ui.mergeviewer.IMergeViewer.MergeViewerSide; |
| import org.eclipse.emf.compare.uml2.internal.UMLDiff; |
| import org.eclipse.emf.ecore.EObject; |
| import org.eclipse.emf.ecore.EStructuralFeature; |
| |
| /** |
| * Case of stereotype many structural feature (attribute/reference) changes. |
| * |
| * @author <a href="mailto:axel.richard@obeo.fr">Axel Richard</a> |
| */ |
| public class UMLStereotypeManyStructuralFeatureChangeAccessor extends ManyStructuralFeatureAccessorImpl { |
| |
| /** |
| * Creates a specialized accessor for the stereotype application differences. |
| * |
| * @param adapterFactory |
| * The adapter factory used by the accessor. |
| * @param diff |
| * The diff for which we need an accessor. |
| * @param side |
| * The side on which this accessor will be used. |
| */ |
| public UMLStereotypeManyStructuralFeatureChangeAccessor(AdapterFactory adapterFactory, UMLDiff diff, |
| MergeViewerSide side) { |
| super(adapterFactory, diff, side); |
| } |
| |
| /** |
| * {@inheritDoc} |
| * |
| * @see org.eclipse.emf.compare.rcp.ui.internal.contentmergeviewer.accessor.impl.AbstractStructuralFeatureAccessor#getAffectedFeature(org.eclipse.emf.compare.Diff) |
| */ |
| @Override |
| protected ImmutableList<Diff> computeDifferences() { |
| Match match = getInitialDiff().getMatch(); |
| List<Diff> siblingDifferences = match.getDifferences(); |
| EStructuralFeature affectedFeature = getAffectedFeature(getInitialDiff()); |
| return ImmutableList.copyOf(filter(siblingDifferences, onFeature(getStructuralFeature().getName(), |
| affectedFeature))); |
| } |
| |
| /** |
| * This can be used to check that a given {@code affectedFeature} matches the given {@code featureName}. |
| * |
| * @param featureName |
| * Name of the feature on which we expect a change. |
| * @param affectedFeature |
| * The affected feature. |
| * @return The created predicate. |
| */ |
| private static Predicate<? super Diff> onFeature(final String featureName, |
| final EStructuralFeature affectedFeature) { |
| return new Predicate<Diff>() { |
| public boolean apply(Diff input) { |
| return featureName.equals(affectedFeature.getName()); |
| } |
| }; |
| } |
| |
| /** |
| * {@inheritDoc} |
| * |
| * @see org.eclipse.emf.compare.rcp.ui.internal.contentmergeviewer.accessor.impl.AbstractStructuralFeatureAccessor#getAffectedFeature(org.eclipse.emf.compare.Diff) |
| */ |
| @Override |
| protected EStructuralFeature getAffectedFeature(Diff diff) { |
| return (EStructuralFeature)((UMLDiff)diff).getDiscriminant(); |
| } |
| |
| /** |
| * {@inheritDoc} |
| * |
| * @see org.eclipse.emf.compare.uml2.rcp.ui.internal.accessor.UMLStereotypeManyStructuralFeatureChangeAccessor#getEObject(org.eclipse.emf.compare.rcp.ui.internal.mergeviewer.IMergeViewer.MergeViewerSide) |
| */ |
| @Override |
| public EObject getEObject(MergeViewerSide side) { |
| Diff refined = getInitialDiff().getRefinedBy().get(0); |
| final EObject eObject; |
| switch (side) { |
| case ANCESTOR: |
| eObject = refined.getMatch().getOrigin(); |
| break; |
| case LEFT: |
| eObject = refined.getMatch().getLeft(); |
| break; |
| case RIGHT: |
| eObject = refined.getMatch().getRight(); |
| break; |
| default: |
| throw new IllegalStateException(); |
| } |
| return eObject; |
| } |
| |
| /** |
| * {@inheritDoc} |
| * |
| * @see org.eclipse.emf.compare.rcp.ui.internal.contentmergeviewer.accessor.impl.ManyStructuralFeatureAccessorImpl#getValueFromDiff(org.eclipse.emf.compare.Diff, |
| * org.eclipse.emf.compare.rcp.ui.internal.mergeviewer.IMergeViewer.MergeViewerSide) |
| */ |
| @Override |
| protected Object getValueFromDiff(Diff diff, MergeViewerSide side) { |
| Diff refined = diff.getRefinedBy().get(0); |
| return super.getValueFromDiff(refined, side); |
| } |
| |
| /** |
| * {@inheritDoc} |
| * |
| * @see org.eclipse.emf.compare.rcp.ui.internal.contentmergeviewer.accessor.impl.ManyStructuralFeatureAccessorImpl#findInsertionIndex(org.eclipse.emf.compare.Diff, |
| * boolean) |
| */ |
| @Override |
| protected int findInsertionIndex(Diff diff, boolean rightToLeft) { |
| Diff refined = diff.getRefinedBy().get(0); |
| return super.findInsertionIndex(refined, rightToLeft); |
| } |
| } |