/*
* The CroudTrip! application aims at revolutionizing the car-ride-sharing market with its easy,
* user-friendly and highly automated way of organizing shared Trips. Copyright (C) 2015 Nazeeh Ammari,
* Philipp Eichhorn, Ricarda Hohn, Vanessa Lange, Alexander Popp, Frederik Simon, Michael Weber
* This program is free software: you can redistribute it and/or modify it under the terms of the GNU
* Affero General Public License as published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
* even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
* You should have received a copy of the GNU Affero General Public License along with this program.
* If not, see http://www.gnu.org/licenses/.
*/
package org.croudtrip.trips;
import org.croudtrip.api.trips.RunningTripQuery;
import org.croudtrip.db.RunningTripQueryDAO;
import org.croudtrip.logs.LogManager;
import org.croudtrip.utils.AbstractScheduledTaskExecutor;
import org.hibernate.SessionFactory;
import java.util.concurrent.TimeUnit;
import javax.inject.Inject;
/**
* Removes unused {@link RunningTripQuery} after they have expired.
*/
public class RunningTripQueryGarbageCollectionExecutor extends AbstractScheduledTaskExecutor {
/**
* Keeps {@link RunningTripQuery} around a little longer to give clients a chance to download results.
*/
private static final int ADDITIONAL_LIFETIME_IN_SECONDS = 60 * 60 * 12; // 12 hours
private final RunningTripQueryDAO runningTripQueryDAO;
@Inject
RunningTripQueryGarbageCollectionExecutor(
RunningTripQueryDAO runningTripQueryDAO,
SessionFactory sessionFactory,
LogManager logManager) {
super(sessionFactory, logManager, 15, TimeUnit.SECONDS);
this.runningTripQueryDAO = runningTripQueryDAO;
}
@Override
protected void doRun() {
long currentTimestamp = System.currentTimeMillis() / 1000;
for (RunningTripQuery query : runningTripQueryDAO.findAll()) {
if (currentTimestamp > query.getQuery().getCreationTimestamp() + query.getQuery().getMaxWaitingTimeInSeconds() + ADDITIONAL_LIFETIME_IN_SECONDS) {
logManager.d("Removing RunningQuery " + query.getId());
runningTripQueryDAO.delete(query);
}
}
}
}