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/*****************************************************************************
* Copyright (c) 2014 CEA LIST.
*
* 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:
* CEA LIST - Initial API and implementation
*****************************************************************************/
package org.eclipse.papyrus.moka.async.fuml.Semantics.CommonBehaviors.Communications;
import org.eclipse.papyrus.moka.async.fuml.Activator;
import org.eclipse.papyrus.moka.async.fuml.debug.AsyncDebug;
import org.eclipse.papyrus.moka.fuml.Semantics.CommonBehaviors.Communications.SignalInstance;
/**
* FIFO strategy that retrieve the oldest SignalInstance owned by the EventPool object.
*/
public class AsyncFIFOGetNextEventStrategy extends AsyncGetNextEventStrategy {
/*
* (non-Javadoc)
*
* @see
* org.eclipse.papyrus.moka.async.fuml.Semantics.CommonBehaviors.Communications.AsyncGetNextEventStrategy#getNextEvent(org.eclipse.papyrus.moka
* .async.fuml.Semantics.CommonBehaviors.Communications.AsyncEventPool)
*/
@Override
/**
* This method is always called by the object activation owning the event pool.
* The call is blocking if no SignalInstance can be retrieved from the event pool.
*/
public SignalInstance getNextEvent(AsyncEventPool eventPool) {
SignalInstance nextEvent = null;
try {
nextEvent = eventPool.take();
} catch (InterruptedException e) {
AsyncDebug.println("getNextEvent interrupted while waiting");
Activator.log.error(e);
}
return nextEvent;
}
}
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