| /******************************************************************************* |
| * Copyright (c) 2009, 2015 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| * Lars Vogel <Lars.Vogel@vogella.com> - Bug 472654 |
| ******************************************************************************/ |
| |
| package org.eclipse.e4.ui.internal.workbench; |
| |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.Map; |
| import java.util.Map.Entry; |
| import java.util.Set; |
| import java.util.WeakHashMap; |
| import org.eclipse.e4.ui.model.application.MApplicationElement; |
| import org.eclipse.e4.ui.model.application.ui.menu.MMenuFactory; |
| import org.eclipse.emf.common.util.URI; |
| import org.eclipse.emf.ecore.EClass; |
| import org.eclipse.emf.ecore.EClassifier; |
| import org.eclipse.emf.ecore.EFactory; |
| import org.eclipse.emf.ecore.EObject; |
| import org.eclipse.emf.ecore.EcoreFactory; |
| import org.eclipse.emf.ecore.util.EcoreUtil; |
| import org.eclipse.emf.ecore.xmi.XMLHelper; |
| import org.eclipse.emf.ecore.xmi.XMLSave; |
| import org.eclipse.emf.ecore.xmi.impl.XMIHelperImpl; |
| import org.eclipse.emf.ecore.xmi.impl.XMIResourceImpl; |
| |
| public class E4XMIResource extends XMIResourceImpl { |
| |
| private Map<EObject, String> objectMap = new WeakHashMap<>(); |
| private Set<String> knownIds = new HashSet<>(); |
| |
| public E4XMIResource() { |
| } |
| |
| public E4XMIResource(URI uri) { |
| super(uri); |
| } |
| |
| public void setInternalId(EObject object, String id) { |
| objectMap.put(object, id); |
| knownIds.add(id); |
| } |
| |
| public String getInternalId(EObject object) { |
| return objectMap.get(object); |
| } |
| |
| @Override |
| protected boolean useIDs() { |
| return true; |
| } |
| |
| private String createId() { |
| return EcoreUtil.generateUUID(); |
| } |
| |
| private String getUniqueId() { |
| String id = createId(); |
| while (knownIds.contains(id)) { |
| id = createId(); |
| } |
| return id; |
| } |
| |
| @Override |
| public void setID(EObject eObject, String id) { |
| if (id != null) { |
| String internalId = objectMap.get(eObject); |
| if (internalId != null) { |
| super.setID(eObject, internalId); |
| } |
| objectMap.put(eObject, id); |
| knownIds.add(id); |
| } |
| super.setID(eObject, id); |
| } |
| |
| @Override |
| public String getID(EObject eObject) { |
| if (eObject instanceof Entry<?, ?>) { |
| return null; |
| } |
| |
| String id = super.getID(eObject); |
| if (id != null) { |
| return id; |
| } |
| |
| id = objectMap.get(eObject); |
| if (id != null) { |
| setID(eObject, id); |
| return id; |
| } |
| |
| id = getUniqueId(); |
| setID(eObject, id); |
| return id; |
| } |
| |
| /** |
| * Functional interface for creating objects |
| */ |
| private interface ObjectCreator { |
| MApplicationElement create(); |
| } |
| |
| static final Map<String, ObjectCreator> deprecatedTypeMappings = new HashMap<>(); |
| static { |
| deprecatedTypeMappings.put("OpaqueMenu", (ObjectCreator) OpaqueElementUtil::createOpaqueMenu //$NON-NLS-1$ |
| ); |
| deprecatedTypeMappings.put("OpaqueMenuItem", (ObjectCreator) OpaqueElementUtil::createOpaqueMenuItem //$NON-NLS-1$ |
| ); |
| deprecatedTypeMappings.put("OpaqueMenuSeparator", (ObjectCreator) OpaqueElementUtil::createOpaqueMenuSeparator //$NON-NLS-1$ |
| ); |
| deprecatedTypeMappings.put("OpaqueToolItem", (ObjectCreator) OpaqueElementUtil::createOpaqueToolItem //$NON-NLS-1$ |
| ); |
| deprecatedTypeMappings.put("RenderedMenu", (ObjectCreator) RenderedElementUtil::createRenderedMenu //$NON-NLS-1$ |
| ); |
| deprecatedTypeMappings.put("RenderedMenuItem", (ObjectCreator) RenderedElementUtil::createRenderedMenuItem //$NON-NLS-1$ |
| ); |
| deprecatedTypeMappings.put("RenderedToolBar", (ObjectCreator) RenderedElementUtil::createRenderedToolBar //$NON-NLS-1$ |
| ); |
| } |
| |
| @Override |
| protected XMLHelper createXMLHelper() { |
| // Handle mapping of deprecated types |
| return new XMIHelperImpl(this) { |
| |
| @Override |
| public EObject createObject(EFactory eFactory, EClassifier type) { |
| if (MMenuFactory.INSTANCE == eFactory && type != null && type.getName() != null) { |
| final ObjectCreator objectCreator = deprecatedTypeMappings.get(type.getName()); |
| if (objectCreator != null) { |
| return (EObject) objectCreator.create(); |
| } |
| } |
| return super.createObject(eFactory, type); |
| } |
| |
| @Override |
| public EClassifier getType(EFactory eFactory, String typeName) { |
| if (deprecatedTypeMappings.containsKey(typeName)) { |
| // need a temp instance of the now removed EClass so that |
| // createObject, above, can do it's work. |
| final EClass tempEClass = EcoreFactory.eINSTANCE.createEClass(); |
| tempEClass.setName(typeName); |
| return tempEClass; |
| } |
| return super.getType(eFactory, typeName); |
| } |
| |
| }; |
| } |
| |
| /* |
| * Create custom XML save to allow filtering of volatile UI elements. |
| * |
| * @generated NOT |
| */ |
| @Override |
| protected XMLSave createXMLSave() { |
| return new E4XMISave(createXMLHelper()); |
| } |
| } |