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/*******************************************************************************
* Copyright (c) 2012 Mia-Software.
* 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:
* Gregoire Dupe (Mia-Software) - Bug 386387 - [CustomizedTreeContentProvider] The TreeElements are not preserved between two calls to getElements()
*******************************************************************************/
package org.eclipse.emf.facet.custom.ui.internal;
import org.eclipse.emf.common.notify.Adapter;
import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.common.notify.Notifier;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.emf.facet.custom.metamodel.v0_2_0.internal.treeproxy.EAttributeTreeElement;
import org.eclipse.emf.facet.custom.metamodel.v0_2_0.internal.treeproxy.EObjectTreeElement;
import org.eclipse.emf.facet.custom.metamodel.v0_2_0.internal.treeproxy.EReferenceTreeElement;
import org.eclipse.emf.facet.custom.metamodel.v0_2_0.internal.treeproxy.EStructuralFeatureTreeElement;
import org.eclipse.emf.facet.custom.ui.internal.exception.CustomizedContentProviderRuntimeException;
import org.eclipse.emf.facet.util.core.DebugUtils;
import org.eclipse.osgi.util.NLS;
public class TreeElementAdapter implements Adapter {
private static final boolean DEBUG = DebugUtils.getDebugStatus(Activator
.getDefault());
private final EObjectTreeElement treeElement;
public TreeElementAdapter(final EObjectTreeElement treeElement) {
this.treeElement = treeElement;
}
public void notifyChanged(final Notification notification) {
DebugUtils.debug(DEBUG,
"Modified element=" + this.treeElement.getEObject()); //$NON-NLS-1$
DebugUtils.debug(DEBUG,
"Notification feature=" + notification.getFeature()); //$NON-NLS-1$
for (EStructuralFeatureTreeElement subElement : this.treeElement
.getSfTreeElmement()) {
final EStructuralFeature feature = getSF(subElement);
if (feature.equals(notification.getFeature())) {
subElement.getReferedEObjectTE().clear();
DebugUtils.debug(
DEBUG,
NLS.bind(
"Cleanning= {0}::{1}", //$NON-NLS-1$
feature.getContainerClass().getName(),
feature.getName()));
}
}
}
private static EStructuralFeature getSF(
final EStructuralFeatureTreeElement structFeatuteTE) {
EStructuralFeature result;
if (structFeatuteTE instanceof EAttributeTreeElement) {
final EAttributeTreeElement eAttributeTE = (EAttributeTreeElement) structFeatuteTE;
result = eAttributeTE.getEAttribute();
} else if (structFeatuteTE instanceof EReferenceTreeElement) {
final EReferenceTreeElement eReferenceTE = (EReferenceTreeElement) structFeatuteTE;
result = eReferenceTE.getEReference();
} else {
throw new CustomizedContentProviderRuntimeException(
"Illegal agrument: " + structFeatuteTE); //$NON-NLS-1$
}
return result;
}
public Notifier getTarget() {
return null;
}
public void setTarget(final Notifier newTarget) {
// Nothing to do
}
public boolean isAdapterForType(final Object type) {
return false;
}
}
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