/****************************************************************************
* Copyright (C) 2012 ecsec GmbH.
* All rights reserved.
* Contact: ecsec GmbH (info@ecsec.de)
*
* This file is part of the Open eCard App.
*
* GNU General Public License Usage
* This file may be used under the terms of the GNU General Public
* License version 3.0 as published by the Free Software Foundation
* and appearing in the file LICENSE.GPL included in the packaging of
* this file. Please review the following information to ensure the
* GNU General Public License version 3.0 requirements will be met:
* http://www.gnu.org/copyleft/gpl.html.
*
* Other Usage
* Alternatively, this file may be used in accordance with the terms
* and conditions contained in a signed written agreement between
* you and ecsec GmbH.
*
***************************************************************************/
package org.openecard.event;
import iso.std.iso_iec._24727.tech.schema.IFDStatusType;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.Callable;
import java.util.concurrent.Future;
import org.openecard.common.WSHelper.WSException;
import org.openecard.common.util.IFDStatusDiff;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
*
* @author Tobias Wich <tobias.wich@ecsec.de>
*/
public class EventRunner implements Callable<Void> {
private static final Logger _logger = LoggerFactory.getLogger(EventRunner.class);
private final EventManager evtManager;
private List<IFDStatusType> oldStati;
private Future wait;
public EventRunner(EventManager evtManager) {
this.evtManager = evtManager;
this.oldStati = new ArrayList<IFDStatusType>();
}
@Override
public Void call() throws Exception {
try {
while (true) {
wait = evtManager.threadPool.submit(new WaitFuture(evtManager));
try {
List<IFDStatusType> newStati = evtManager.ifdStatus();
IFDStatusDiff diff = new IFDStatusDiff(oldStati);
diff.diff(newStati, true);
if (diff.hasChanges()) {
evtManager.sendEvents(oldStati, diff.result());
}
oldStati = newStati;
} catch (WSException ex) {
_logger.warn("GetStatus returned with error.", ex);
}
// wait for change if it hasn't already happened
wait.get();
}
} finally {
if (wait != null) {
wait.cancel(true);
}
}
}
}