/*
* Copyright (c) 2011-2013, 2016 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.cdo.tests.util;
import org.eclipse.net4j.util.event.IEvent;
import org.eclipse.net4j.util.event.IListener;
import org.eclipse.net4j.util.tests.AbstractOMTest;
import java.util.ArrayList;
import java.util.List;
import junit.framework.AssertionFailedError;
/**
* @author Eike Stepper
*/
public class TestListener implements IListener
{
private List<IEvent> events = new ArrayList<IEvent>();
private int nextAssertion;
public TestListener()
{
}
public <T extends IEvent> void assertEvent(final Class<?> eventType, final EventAssertion<T> assertion) throws Exception
{
new AbstractOMTest.PollingTimeOuter()
{
@SuppressWarnings("unchecked")
@Override
protected boolean successful()
{
synchronized (events)
{
for (int i = nextAssertion; i < events.size(); i++)
{
IEvent event = events.get(i);
System.out.println(event);
++nextAssertion;
if (eventType.isAssignableFrom(event.getClass()))
{
try
{
assertion.execute((T)event);
return true;
}
catch (AssertionFailedError ignore)
{
// This is not the expected event. Either it'll come later or we'll time out below.
}
}
}
}
return false;
}
}.assertNoTimeOut();
}
public IEvent[] getEvents()
{
synchronized (events)
{
return events.toArray(new IEvent[events.size()]);
}
}
public void clearEvents()
{
synchronized (events)
{
events.clear();
nextAssertion = 0;
}
}
public void notifyEvent(IEvent event)
{
synchronized (events)
{
events.add(event);
}
}
/**
* @author Eike Stepper
*/
public interface EventAssertion<T extends IEvent>
{
public void execute(T event);
}
}