Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/GaugesFactory.java @ 4242:448cbd8708d5

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Added new classes for the last commit.
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Wed, 24 Oct 2012 14:44:12 +0200
parents 7e19449d7826
children
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1 package de.intevation.flys.artifacts.model;
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2
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3 import java.util.List;
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4 import java.util.ArrayList;
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5
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6 import de.intevation.flys.backend.SessionHolder;
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7 import de.intevation.flys.model.River;
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8 import de.intevation.flys.model.Gauge;
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9 import de.intevation.flys.model.Range;
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10
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11 import org.hibernate.Session;
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12 import org.hibernate.Query;
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13
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14 public class GaugesFactory
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15 {
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16 public static List<Gauge> getGauges(River river) {
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17 return getGauges(river.getName());
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18 }
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19
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21 public static Gauge getGauge(String gaugeName) {
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22 Session session = SessionHolder.HOLDER.get();
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23 Query query = session.createQuery(
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24 "from Gauge where name=:name");
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25 query.setParameter("name", gaugeName);
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26
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27 List<Gauge> res = query.list();
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28
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29 return res.isEmpty() ? null : res.get(0);
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30 }
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31
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32
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33 public static List<Gauge> getGauges(String river) {
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34 Session session = SessionHolder.HOLDER.get();
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35 Query query = session.createQuery(
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36 "from Gauge where river.name=:name");
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37 query.setParameter("name", river);
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38 return query.list();
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39 }
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40
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41 public static List<Gauge> filterRanges(
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42 List<Gauge> gauges,
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43 List<double []> ranges
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44 ) {
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45 // XXX: Inefficent!
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46 ArrayList<Range> rs = new ArrayList<Range>();
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47 for (double [] range: ranges) {
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48 double a = range[0];
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49 double b = range[1];
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50 rs.add(new Range(Math.min(a, b), Math.max(a, b), null));
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51 }
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52 return filter(gauges, rs);
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53 }
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54
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55 public static List<Gauge> filter(List<Gauge> gauges, List<Range> ranges) {
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56 // TODO: Make it an HQL filter!
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57 ArrayList<Gauge> out = new ArrayList<Gauge>();
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58 for (Gauge gauge: gauges) {
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59 Range range = gauge.getRange();
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60 for (Range cmp: ranges) {
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61 if (range.intersects(cmp)) {
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62 out.add(gauge);
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63 break;
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64 }
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65 }
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66 }
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67 return out;
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68 }
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69 }
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70 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org