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/**
* Copyright (c) 2004 - 2011 Eike Stepper (Berlin, Germany) 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:
* Eike Stepper - initial API and implementation
* Martin Fluegge - bug 247226: Transparently support legacy models
*/
package org.eclipse.emf.internal.cdo.object;
import org.eclipse.emf.cdo.CDONotification;
import org.eclipse.emf.cdo.common.model.EMFUtil;
import org.eclipse.emf.cdo.transaction.CDOTransaction;
import org.eclipse.emf.internal.cdo.bundle.OM;
import org.eclipse.net4j.util.om.trace.ContextTracer;
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.ecore.InternalEObject;
import org.eclipse.emf.spi.cdo.CDOStore;
import org.eclipse.emf.spi.cdo.FSMUtil;
import java.util.List;
/**
* @author Eike Stepper
* @since 2.0
*/
public class CDOLegacyAdapter extends CDOLegacyWrapper implements Adapter.Internal
{
private static final ContextTracer TRACER = new ContextTracer(OM.DEBUG_OBJECT, CDOLegacyAdapter.class);
/**
* @since 3.0
*/
public CDOLegacyAdapter(InternalEObject object)
{
super(object);
instance.eAdapters().add(this);
((org.eclipse.emf.common.notify.impl.BasicNotifierImpl.EObservableAdapterList)instance.eAdapters())
.addListener(new AdapterListListener());
}
public void setTarget(Notifier newTarget)
{
instance = (InternalEObject)newTarget;
}
public void unsetTarget(Notifier oldTarget)
{
if (instance == oldTarget)
{
instance = null;
}
}
public Notifier getTarget()
{
return instance;
}
public boolean isAdapterForType(Object type)
{
return type == CDOLegacyAdapter.class;
}
public void notifyChanged(Notification msg)
{
if (msg.isTouch() || msg instanceof CDONotification)
{
return;
}
EStructuralFeature feature = (EStructuralFeature)msg.getFeature();
if (view == null || feature == null || !(view instanceof CDOTransaction))
{
return;
}
CDOStore store = view.getStore();
if (EMFUtil.isPersistent(feature))
{
switch (msg.getEventType())
{
case Notification.SET:
store.set(instance, feature, msg.getPosition(), msg.getNewValue());
break;
case Notification.UNSET:
store.unset(instance, feature);
break;
case Notification.MOVE:
// TODO Is that correct?
store.move(instance, feature, msg.getPosition(), (Integer)msg.getOldValue());
break;
case Notification.ADD:
store.add(instance, feature, msg.getPosition(), msg.getNewValue());
break;
case Notification.ADD_MANY:
{
int pos = msg.getPosition();
@SuppressWarnings("unchecked")
List<Object> list = (List<Object>)msg.getNewValue();
for (Object object : list)
{
store.add(instance, feature, pos++, object);
}
break;
}
case Notification.REMOVE:
{
store.remove(instance, feature, msg.getPosition());
break;
}
case Notification.REMOVE_MANY:
{
@SuppressWarnings("unchecked")
List<Object> list = (List<Object>)msg.getOldValue();
for (int i = list.size() - 1; i >= 0; --i)
{
store.remove(instance, feature, i);
}
break;
}
}
// Align Container for bidirectional references because this is not set in the store. See Bugzilla_246622_Test
instanceToRevisionContainment();
}
}
/**
* @author Martin Flügge
* @since 3.0
*/
protected class AdapterListListener implements
org.eclipse.emf.common.notify.impl.BasicNotifierImpl.EObservableAdapterList.Listener
{
/**
* @since 4.0
*/
public AdapterListListener()
{
}
public void added(Notifier notifier, Adapter adapter)
{
if (TRACER.isEnabled())
{
TRACER.format("Added : {0} to {1} ", adapter, CDOLegacyAdapter.this); //$NON-NLS-1$
}
if (!FSMUtil.isTransient(CDOLegacyAdapter.this))
{
cdoView().handleAddAdapter(CDOLegacyAdapter.this, adapter);
}
}
public void removed(Notifier notifier, Adapter adapter)
{
if (TRACER.isEnabled())
{
TRACER.format("Removed : {0} from {1} ", adapter, CDOLegacyAdapter.this); //$NON-NLS-1$
}
if (!FSMUtil.isTransient(CDOLegacyAdapter.this))
{
cdoView().handleRemoveAdapter(CDOLegacyAdapter.this, adapter);
}
}
}
}
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