| /******************************************************************************* |
| * Copyright (c) 2008-2011 Chair for Applied Software Engineering, |
| * Technische Universitaet Muenchen. |
| * 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: |
| ******************************************************************************/ |
| package org.eclipse.emf.ecp.common.handler; |
| |
| import java.util.List; |
| |
| import org.eclipse.core.commands.AbstractHandler; |
| import org.eclipse.core.commands.ExecutionEvent; |
| import org.eclipse.core.commands.ExecutionException; |
| import org.eclipse.emf.common.util.EList; |
| 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.EcorePackage; |
| import org.eclipse.emf.ecp.common.commands.ECPCommand; |
| import org.eclipse.emf.ecp.common.util.UiUtil; |
| import org.eclipse.emf.ecp.common.utilities.ActionHelper; |
| |
| /** |
| * . This is the generic handler for commands to create containments of a model element |
| * |
| * @author Hodaie |
| */ |
| public class CreateContainmentHandler extends AbstractHandler { |
| |
| /** |
| * The Id for the EClass parameter to command. A model element of this EClass type is created in this handler. |
| */ |
| public static final String COMMAND_ECLASS_PARAM = "org.eclipse.emf.ecp.navigator.eClassParameter"; |
| |
| /** |
| * The Id for the EReference parameter to command. A model element of this EReference type is created in this handler. |
| */ |
| public static final String COMMAND_EREFERENCE_PARAM = "org.eclipse.emf.ecp.navigator.eReferenceParameter"; |
| |
| /** |
| * . {@inheritDoc} |
| */ |
| public Object execute(ExecutionEvent event) throws ExecutionException { |
| |
| // get the command parameter (EClass) |
| Object o = event.getObjectParameterForExecution(COMMAND_ECLASS_PARAM); |
| if (o instanceof EClass) { |
| final EClass newMEType = (EClass) o; |
| final EObject newMEInstance; |
| |
| final EObject selectedME = UiUtil.getSelectedModelelement(); |
| EPackage ePackage = newMEType.getEPackage(); |
| newMEInstance = ePackage.getEFactoryInstance().create(newMEType); |
| EReference ref = (EReference) selectedME.eClass().getEStructuralFeature((String)event.getObjectParameterForExecution(COMMAND_EREFERENCE_PARAM)); |
| if(ref==null){ |
| ref= getStructuralFeature(newMEInstance, selectedME); |
| } |
| final EReference eReference = ref; |
| if (!eReference.isContainer()) { |
| new ECPCommand(selectedME) { |
| @SuppressWarnings("unchecked") |
| @Override |
| protected void doRun() { |
| Object object = selectedME.eGet(eReference); |
| if ((eReference.isMany())) { |
| EList<EObject> eList = (EList<EObject>) object; |
| eList.add(newMEInstance); |
| } else { |
| selectedME.eSet(eReference, newMEInstance); |
| } |
| ActionHelper.openModelElement(newMEInstance, this.getClass().getName()); |
| } |
| }.run(false); |
| } |
| } |
| return null; |
| } |
| |
| private EReference getStructuralFeature(final EObject newMEInstance, EObject parent) { |
| // the value of the 'EAll Containments' reference list. |
| List<EReference> eallcontainments = parent.eClass().getEAllContainments(); |
| EReference reference = null; |
| for (EReference containmentitem : eallcontainments) { |
| |
| EClass eReferenceType = containmentitem.getEReferenceType(); |
| if (eReferenceType.equals(newMEInstance)) { |
| reference = containmentitem; |
| |
| break; |
| } else if (eReferenceType.isSuperTypeOf(newMEInstance.eClass()) |
| || eReferenceType.equals(EcorePackage.eINSTANCE.getEObject())) { |
| |
| reference = containmentitem; |
| break; |
| } |
| } |
| return reference; |
| } |
| } |