| /*************************************************************************************************** |
| * Copyright (c) 2003, 2004 IBM Corporation 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: IBM Corporation - initial API and implementation |
| **************************************************************************************************/ |
| |
| package org.eclipse.jst.j2ee.internal.webservice.adapter; |
| |
| import java.util.Iterator; |
| |
| import org.eclipse.emf.common.notify.Notification; |
| import org.eclipse.emf.common.notify.impl.AdapterImpl; |
| import org.eclipse.emf.common.util.EList; |
| import org.eclipse.emf.ecore.EClass; |
| import org.eclipse.emf.ecore.EObject; |
| import org.eclipse.emf.ecore.EStructuralFeature; |
| |
| public class AdapterLayer extends AdapterImpl { |
| private EObject parent_; |
| private EStructuralFeature feature_; |
| private EClass childEClass_; |
| private EObject child_; |
| |
| public AdapterLayer(EObject parent, EStructuralFeature feature, EClass childEClass) { |
| super(); |
| parent_ = parent; |
| feature_ = feature; |
| childEClass_ = childEClass; |
| adapt(parent_); |
| } |
| |
| public void notifyChanged(Notification msg) { |
| int type = msg.getEventType(); |
| if (type == Notification.SET || type == Notification.UNSET || type == Notification.ADD || type == Notification.REMOVE || type == Notification.ADD_MANY || type == Notification.REMOVE_MANY) |
| adaptParent(); |
| } |
| |
| public void adapt(EObject eObject) { |
| if (child_ != null) |
| child_.eAdapters().remove(this); |
| parent_ = eObject; |
| adaptChild(); |
| if (child_ != null) |
| child_.eAdapters().add(this); |
| } |
| |
| public void dispose() { |
| if (child_ != null) |
| child_.eAdapters().remove(this); |
| } |
| |
| public EObject getChild() { |
| return child_; |
| } |
| |
| private void adaptChild() { |
| if (parent_ != null) { |
| Object object = parent_.eGet(feature_); |
| if (object == null) |
| child_ = childEClass_.getEPackage().getEFactoryInstance().create(childEClass_); |
| else |
| child_ = (EObject) object; |
| } else |
| child_ = null; |
| } |
| |
| private void adaptParent() { |
| if (parent_ != null && child_ != null) { |
| EList childFeatures = childEClass_.getEAllStructuralFeatures(); |
| for (Iterator it = childFeatures.iterator(); it.hasNext();) { |
| EStructuralFeature childFeature = (EStructuralFeature) it.next(); |
| boolean isFeatureSet; |
| Object grandchild = child_.eGet(childFeature); |
| if (grandchild != null && grandchild instanceof EList) |
| isFeatureSet = !((EList) grandchild).isEmpty(); |
| else |
| isFeatureSet = child_.eIsSet(childFeature); |
| if (isFeatureSet) { |
| parent_.eSet(feature_, child_); |
| return; |
| } |
| } |
| parent_.eUnset(feature_); |
| } |
| } |
| } |