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package ee.tlu.htk.dippler.schedulers;

import ee.tlu.htk.dippler.backoffice.SessionInfo;
import ee.tlu.htk.dippler.backoffice.SessionKeeperLocal;
import ee.tlu.htk.dippler.utils.Utility;
import java.util.Date;
import java.util.Iterator;
import java.util.Map.Entry;
import java.util.concurrent.ConcurrentHashMap;
import javax.ejb.EJB;
import javax.ejb.Schedule;
import javax.ejb.Singleton;

/**
 *
 * @author raido
 */

@Singleton
public class ExpiredSessionCleaner {

    @EJB
    private SessionKeeperLocal sessionKeeper;

    @Schedule(minute = "*/15", hour="*", info = "Every 15 minutes")
    private void run() {
        ConcurrentHashMap<String, SessionInfo> sessions = sessionKeeper.getAllSessions();

        System.out.println("CLEANING UP SESSIONS AT " + new Date().toString());
        System.out.println("ACTIVE SESSIONS COUNT " + sessions.size());
        int killed_count = 0;
        Iterator it = sessions.entrySet().iterator();
        while (it.hasNext()) {
            Entry<String, SessionInfo> mapEntry = (Entry) it.next();
            SessionInfo session = mapEntry.getValue();
            if ((Utility.getTime() - session.getActivityTime()) >= 3600) { //1 hour session limit
                sessionKeeper.destroySession(session.getId());
                killed_count++;
            }
        }
        System.out.println("TOTAL SESSIONS KILLED " + killed_count);
        System.out.println("ACTIVE SESSIONS LEFT " + sessionKeeper.getAllSessions().size());
    }
}