| /******************************************************************************* |
| * Copyright (c) 2010, 2012 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.mylyn.docs.intent.compare; |
| |
| import org.eclipse.emf.compare.Comparison; |
| import org.eclipse.emf.compare.Diff; |
| import org.eclipse.emf.ecore.EObject; |
| import org.eclipse.emf.ecore.EStructuralFeature; |
| import org.eclipse.mylyn.docs.intent.compare.utils.EMFCompareUtils; |
| |
| /** |
| * Merges local and repository asts using EMF Compare. |
| * |
| * @author <a href="mailto:alex.lagarde@obeo.fr">Alex Lagarde</a> |
| * @author <a href="mailto:william.piers@obeo.fr">William Piers</a> |
| */ |
| public class IntentASTMerger { |
| |
| /** |
| * Constant to by-pass EMFCompare and replace the whole content without comparing. |
| */ |
| private static final boolean OVERRIDE = false; |
| |
| /** |
| * Constructor. |
| */ |
| public IntentASTMerger() { |
| } |
| |
| /** |
| * Modify the repository elements according to the local elements ; this operation should occur during a |
| * transaction and be committed to be effective. |
| * |
| * @param localRoot |
| * the local element to commit |
| * @param repositoryRoot |
| * the repository element to update |
| * @throws MergingException |
| * if the merging has encountered a problem. |
| */ |
| public void mergeFromLocalToRepository(EObject localRoot, EObject repositoryRoot) throws MergingException { |
| if (OVERRIDE) { |
| for (EStructuralFeature feature : repositoryRoot.eClass().getEAllStructuralFeatures()) { |
| repositoryRoot.eSet(feature, localRoot.eGet(feature)); |
| } |
| } else { |
| Comparison comparison = EMFCompareUtils.compareDocuments(localRoot, repositoryRoot); |
| for (Diff diff : comparison.getDifferences()) { |
| diff.copyLeftToRight(); |
| } |
| } |
| } |
| |
| } |