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/**
* Copyright (c) 2012, 2013 Obeo.
* 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:
* Obeo - initial API and implementation
*/
package org.eclipse.emf.compare.uml2.internal.provider.custom;
import java.util.ArrayList;
import java.util.Collection;
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.compare.provider.IItemDescriptionProvider;
import org.eclipse.emf.compare.provider.IItemStyledLabelProvider;
import org.eclipse.emf.compare.uml2.internal.util.UMLCompareAdapterFactory;
import org.eclipse.emf.edit.provider.ChangeNotifier;
import org.eclipse.emf.edit.provider.ComposeableAdapterFactory;
import org.eclipse.emf.edit.provider.ComposedAdapterFactory;
import org.eclipse.emf.edit.provider.IChangeNotifier;
import org.eclipse.emf.edit.provider.IDisposable;
import org.eclipse.emf.edit.provider.INotifyChangedListener;
/**
* This is the factory that is used to provide the interfaces needed to support Viewers. The adapters
* generated by this factory convert EMF adapter notifications into calls to {@link #fireNotifyChanged
* fireNotifyChanged}. The adapters also support Eclipse property sheets. Note that most of the adapters are
* shared among multiple instances.
*
* @author <a href="mailto:mikael.barbero@obeo.fr">Mikael Barbero</a>
*/
public class UMLCompareCustomItemProviderAdapterFactory extends UMLCompareAdapterFactory implements ComposeableAdapterFactory, IChangeNotifier, IDisposable {
/**
* This keeps track of the root adapter factory that delegates to this adapter factory.
*/
private ComposedAdapterFactory parentAdapterFactory;
/**
* This is used to implement {@link org.eclipse.emf.edit.provider.IChangeNotifier}.
*/
private IChangeNotifier changeNotifier = new ChangeNotifier();
/**
* This keeps track of all the supported types checked by {@link #isFactoryForType isFactoryForType}.
*/
private Collection<Object> supportedTypes = new ArrayList<Object>();
/**
* This keeps track of the one adapter used for all
* {@link org.eclipse.emf.compare.uml2.internal.StereotypeApplicationChange} instances.
*/
private StereotypeApplicationChangeCustomItemProvider stereotypeApplicationChangeExtendedItemProvider;
/**
* This keeps track of the one adapter used for all {@link org.eclipse.emf.compare.uml2.internal.UMLDiff}
* instances.
*/
private UMLDiffCustomItemProvider umlDiffExtendedItemProvider;
/**
* This constructs an instance.
*/
public UMLCompareCustomItemProviderAdapterFactory() {
supportedTypes.add(IItemStyledLabelProvider.class);
supportedTypes.add(IItemDescriptionProvider.class);
}
/**
* {@inheritDoc}
*
* @see org.eclipse.emf.compare.uml2.internal.util.UMLCompareAdapterFactory#createStereotypeApplicationChangeAdapter()
*/
@Override
public Adapter createStereotypeApplicationChangeAdapter() {
if (stereotypeApplicationChangeExtendedItemProvider == null) {
stereotypeApplicationChangeExtendedItemProvider = new StereotypeApplicationChangeCustomItemProvider(
this);
}
return stereotypeApplicationChangeExtendedItemProvider;
}
/**
* {@inheritDoc}
*
* @see org.eclipse.emf.compare.uml2.internal.util.UMLCompareAdapterFactory#createUMLDiffAdapter()
*/
@Override
public Adapter createUMLDiffAdapter() {
if (umlDiffExtendedItemProvider == null) {
umlDiffExtendedItemProvider = new UMLDiffCustomItemProvider(this);
}
return umlDiffExtendedItemProvider;
}
/**
* {@inheritDoc}
*
* @see org.eclipse.emf.edit.provider.ComposeableAdapterFactory#getRootAdapterFactory()
*/
public ComposeableAdapterFactory getRootAdapterFactory() {
if (parentAdapterFactory == null) {
return this;
} else {
return parentAdapterFactory.getRootAdapterFactory();
}
}
/**
* {@inheritDoc}
*
* @see org.eclipse.emf.edit.provider.ComposeableAdapterFactory#setParentAdapterFactory(org.eclipse.emf.edit.provider.ComposedAdapterFactory)
*/
public void setParentAdapterFactory(ComposedAdapterFactory parentAdapterFactory) {
this.parentAdapterFactory = parentAdapterFactory;
}
/**
* {@inheritDoc}
*
* @see org.eclipse.emf.compare.uml2.internal.util.UMLCompareAdapterFactory#isFactoryForType(java.lang.Object)
*/
@Override
public boolean isFactoryForType(Object type) {
return supportedTypes.contains(type) || super.isFactoryForType(type);
}
/**
* {@inheritDoc}
*
* @see org.eclipse.emf.common.notify.impl.AdapterFactoryImpl#adapt(org.eclipse.emf.common.notify.Notifier,
* java.lang.Object)
*/
@Override
public Adapter adapt(Notifier notifier, Object type) {
return super.adapt(notifier, this);
}
/**
* {@inheritDoc}
*
* @see org.eclipse.emf.common.notify.impl.AdapterFactoryImpl#adapt(java.lang.Object, java.lang.Object)
*/
@Override
public Object adapt(Object object, Object type) {
if (isFactoryForType(type)) {
Object adapter = super.adapt(object, type);
if (!(type instanceof Class<?>) || (((Class<?>)type).isInstance(adapter))) {
return adapter;
}
}
return null;
}
/**
* {@inheritDoc}
*
* @see org.eclipse.emf.edit.provider.IChangeNotifier#addListener(org.eclipse.emf.edit.provider.INotifyChangedListener)
*/
public void addListener(INotifyChangedListener notifyChangedListener) {
changeNotifier.addListener(notifyChangedListener);
}
/**
* {@inheritDoc}
*
* @see org.eclipse.emf.edit.provider.IChangeNotifier#removeListener(org.eclipse.emf.edit.provider.INotifyChangedListener)
*/
public void removeListener(INotifyChangedListener notifyChangedListener) {
changeNotifier.removeListener(notifyChangedListener);
}
/**
* {@inheritDoc}
*
* @see org.eclipse.emf.edit.provider.IChangeNotifier#fireNotifyChanged(org.eclipse.emf.common.notify.Notification)
*/
public void fireNotifyChanged(Notification notification) {
changeNotifier.fireNotifyChanged(notification);
if (parentAdapterFactory != null) {
parentAdapterFactory.fireNotifyChanged(notification);
}
}
/**
* {@inheritDoc}
*
* @see org.eclipse.emf.edit.provider.IDisposable#dispose()
*/
public void dispose() {
if (stereotypeApplicationChangeExtendedItemProvider != null) {
stereotypeApplicationChangeExtendedItemProvider.dispose();
}
if (umlDiffExtendedItemProvider != null) {
umlDiffExtendedItemProvider.dispose();
}
}
}
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