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/*
* Copyright (c) 2009, 2011, 2012 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
*/
package org.eclipse.emf.internal.cdo.session;
import org.eclipse.emf.cdo.eresource.CDOResource;
import org.eclipse.emf.cdo.util.CDOUtil;
import org.eclipse.emf.internal.cdo.view.CDOViewSetImpl;
import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.common.notify.Notifier;
import org.eclipse.emf.common.notify.impl.AdapterImpl;
import org.eclipse.emf.ecore.resource.ResourceSet;
import org.eclipse.emf.spi.cdo.InternalCDOViewSet;
/**
* @author Eike Stepper
*/
public final class SessionUtil
{
private static final boolean ROOT_RESOURCE_EXCLUSION_CHECK = false;
private static Runnable testDelayInSessionActivation;
private static Runnable testDelayInViewActivation;
private SessionUtil()
{
}
private static void addRootResourceExclusionCheckAdapter(ResourceSet resourceSet)
{
class RootResourceExclusionCheckAdapter extends AdapterImpl
{
@Override
public void notifyChanged(Notification msg)
{
if (msg.getEventType() == Notification.ADD || msg.getEventType() == Notification.ADD_MANY)
{
Object newValue = msg.getNewValue();
check(newValue);
}
}
@Override
public void setTarget(Notifier newTarget)
{
check(newTarget);
}
private void check(Object object)
{
if (object instanceof CDOResource && ((CDOResource)object).isRoot())
{
throw new AssertionError("Root resource in resource set not allowed");
}
}
}
resourceSet.eAdapters().add(new RootResourceExclusionCheckAdapter());
}
/**
* @since 2.0
*/
public static InternalCDOViewSet prepareResourceSet(ResourceSet resourceSet)
{
InternalCDOViewSet viewSet = null;
synchronized (resourceSet)
{
if (ROOT_RESOURCE_EXCLUSION_CHECK)
{
addRootResourceExclusionCheckAdapter(resourceSet);
}
viewSet = (InternalCDOViewSet)CDOUtil.getViewSet(resourceSet);
if (viewSet == null)
{
viewSet = new CDOViewSetImpl();
resourceSet.eAdapters().add(viewSet);
}
}
return viewSet;
}
public static Runnable getTestDelayInSessionActivation()
{
return testDelayInSessionActivation;
}
public static void setTestDelayInSessionActivation(Runnable runnable)
{
testDelayInSessionActivation = runnable;
}
public static Runnable getTestDelayInViewActivation()
{
return testDelayInViewActivation;
}
public static void setTestDelayInViewActivation(Runnable runnable)
{
testDelayInViewActivation = runnable;
}
}
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