| /** |
| * Copyright (c) 2015, 2016 Willink Transformations 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: |
| * E.D.Willink - Initial API and implementation |
| */ |
| package org.eclipse.qvtd.xtext.qvtcore.tests.hsv2hls; |
| |
| import java.util.ArrayList; |
| import java.util.Comparator; |
| import java.util.List; |
| |
| import org.eclipse.emf.common.util.ECollections; |
| import org.eclipse.emf.common.util.EList; |
| import org.eclipse.emf.common.util.TreeIterator; |
| import org.eclipse.emf.ecore.EAttribute; |
| import org.eclipse.emf.ecore.EClass; |
| import org.eclipse.emf.ecore.EObject; |
| import org.eclipse.emf.ecore.EPackage; |
| import org.eclipse.emf.ecore.EReference; |
| import org.eclipse.emf.ecore.resource.Resource; |
| import org.eclipse.jdt.annotation.NonNull; |
| import org.eclipse.ocl.examples.xtext.tests.XtextTestCase.Normalizer; |
| import org.eclipse.ocl.pivot.utilities.ClassUtil; |
| import org.eclipse.qvtd.xtext.qvtcore.tests.hsv2hls.HLSTree.HLSTreePackage; |
| import org.eclipse.qvtd.xtext.qvtimperative.tests.ModelNormalizer; |
| |
| /** |
| * FIXME Bug 490497 - this is a workaround for Bug 490172 |
| * |
| * HSV2HLSNormalizer normalises the results of the HSV2HLS transformation pending support for order preservation. |
| */ |
| public class HSV2HLSNormalizer implements ModelNormalizer |
| { |
| public static final @NonNull HSV2HLSNormalizer INSTANCE = new HSV2HLSNormalizer(); |
| |
| protected static class HLSNodeComparator implements Comparator<@NonNull EObject> |
| { |
| private final @NonNull EAttribute hlsNodeName; |
| |
| public HLSNodeComparator(@NonNull EAttribute hlsNodeName) { |
| this.hlsNodeName = hlsNodeName; |
| } |
| |
| @Override |
| public int compare(@NonNull EObject o1, @NonNull EObject o2) { |
| String n1 = (String) o1.eGet(hlsNodeName); |
| String n2 = (String) o2.eGet(hlsNodeName); |
| return ClassUtil.safeCompareTo(n1, n2); |
| } |
| } |
| |
| @Override |
| public @NonNull List<Normalizer> normalize(@NonNull Resource resource) { |
| EObject eRoot = resource.getContents().get(0); |
| EPackage ePackage = eRoot.eClass().getEPackage(); |
| EClass hlsNodeClass = (EClass) ePackage.getEClassifier(HLSTreePackage.Literals.HLS_NODE.getName()); |
| assert hlsNodeClass != null; |
| @NonNull EReference hlsNodeChildren = (EReference) hlsNodeClass.getEStructuralFeature(HLSTreePackage.Literals.HLS_NODE__CHILDREN.getName()); |
| assert hlsNodeChildren != null; |
| @NonNull EAttribute hlsNodeName = (EAttribute) hlsNodeClass.getEStructuralFeature(HLSTreePackage.Literals.HLS_NODE__NAME.getName()); |
| assert hlsNodeName != null; |
| HLSNodeComparator personComparator = new HLSNodeComparator(hlsNodeName); |
| List<@NonNull EObject> allNodes = new ArrayList<@NonNull EObject>(); |
| for (TreeIterator<EObject> tit = resource.getAllContents(); tit.hasNext(); ) { |
| EObject eObject = tit.next(); |
| if (hlsNodeClass.isInstance(eObject)) { |
| allNodes.add(eObject); |
| } |
| } |
| for (@NonNull EObject hlsNode : allNodes) { |
| @SuppressWarnings("unchecked") |
| EList<@NonNull EObject> children = (EList<@NonNull EObject>) hlsNode.eGet(hlsNodeChildren); |
| ECollections.sort(children, personComparator); |
| } |
| List<Normalizer> normalizers = new ArrayList<Normalizer>(); |
| return normalizers; |
| } |
| } |