teichmann@5863: /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
teichmann@5863:  * Software engineering by Intevation GmbH
teichmann@5863:  *
teichmann@5863:  * This file is Free Software under the GNU AGPL (>=v3) 
teichmann@5863:  * and comes with ABSOLUTELY NO WARRANTY! Check out the
teichmann@5863:  * documentation coming with Dive4Elements River for details. 
teichmann@5863:  */
teichmann@5863: 
teichmann@5831: package org.dive4elements.river.artifacts.model;
sascha@151: 
sascha@151: import java.util.List;
sascha@151: import java.util.ArrayList;
sascha@151: 
teichmann@5831: import org.dive4elements.river.backend.SessionHolder;
teichmann@5831: import org.dive4elements.river.model.River;
teichmann@5831: import org.dive4elements.river.model.Gauge;
teichmann@5831: import org.dive4elements.river.model.Range;
sascha@151: 
sascha@151: import org.hibernate.Session;
sascha@151: import org.hibernate.Query;
sascha@151: 
sascha@151: public class GaugesFactory
sascha@151: {
sascha@151:     public static List<Gauge> getGauges(River river) {
sascha@151:         return getGauges(river.getName());
sascha@151:     }
sascha@151: 
ingo@1712: 
ingo@1712:     public static Gauge getGauge(String gaugeName) {
ingo@1712:         Session session = SessionHolder.HOLDER.get();
ingo@1712:         Query query = session.createQuery(
ingo@1712:             "from Gauge where name=:name");
ingo@1712:         query.setParameter("name", gaugeName);
ingo@1712: 
ingo@1712:         List<Gauge> res = query.list();
ingo@1712: 
ingo@1712:         return res.isEmpty() ? null : res.get(0);
ingo@1712:     }
ingo@1712: 
ingo@1712: 
sascha@151:     public static List<Gauge> getGauges(String river) {
sascha@311:         Session session = SessionHolder.HOLDER.get();
sascha@311:         Query query = session.createQuery(
sascha@311:             "from Gauge where river.name=:name");
sascha@311:         query.setParameter("name", river);
sascha@311:         return query.list();
sascha@151:     }
sascha@151: 
sascha@151:     public static List<Gauge> filterRanges(
sascha@151:         List<Gauge>     gauges,
sascha@151:         List<double []> ranges
sascha@151:     ) {
sascha@151:         // XXX: Inefficent!
sascha@151:         ArrayList<Range> rs = new ArrayList<Range>();
sascha@151:         for (double [] range: ranges) {
sascha@151:             double a = range[0];
sascha@151:             double b = range[1];
sascha@151:             rs.add(new Range(Math.min(a, b), Math.max(a, b), null));
sascha@151:         }
sascha@151:         return filter(gauges, rs);
sascha@151:     }
sascha@151: 
sascha@151:     public static List<Gauge> filter(List<Gauge> gauges, List<Range> ranges) {
sascha@151:         // TODO: Make it an HQL filter!
sascha@151:         ArrayList<Gauge> out = new ArrayList<Gauge>();
sascha@151:         for (Gauge gauge: gauges) {
sascha@151:             Range range = gauge.getRange();
sascha@151:             for (Range cmp: ranges) {
sascha@151:                 if (range.intersects(cmp)) {
sascha@151:                     out.add(gauge);
sascha@151:                     break;
sascha@151:                 }
sascha@151:             }
sascha@151:         }
sascha@151:         return out;
sascha@151:     }
sascha@151: }
sascha@151: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :