Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/artifacts/model/GaugesFactory.java @ 5863:4897a58c8746

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River artifacts: Added new copyright headers.
author Sascha L. Teichmann <teichmann@intevation.de>
date Sun, 28 Apr 2013 14:40:59 +0200
parents 5aa05a7a34b7
children af13ceeba52a
rev   line source
5863
4897a58c8746 River artifacts: Added new copyright headers.
Sascha L. Teichmann <teichmann@intevation.de>
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1 /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
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2 * Software engineering by Intevation GmbH
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3 *
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4 * This file is Free Software under the GNU AGPL (>=v3)
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5 * and comes with ABSOLUTELY NO WARRANTY! Check out the
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6 * documentation coming with Dive4Elements River for details.
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7 */
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8
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9 package org.dive4elements.river.artifacts.model;
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10
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11 import java.util.List;
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12 import java.util.ArrayList;
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13
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14 import org.dive4elements.river.backend.SessionHolder;
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15 import org.dive4elements.river.model.River;
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16 import org.dive4elements.river.model.Gauge;
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17 import org.dive4elements.river.model.Range;
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18
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19 import org.hibernate.Session;
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20 import org.hibernate.Query;
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21
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22 public class GaugesFactory
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23 {
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24 public static List<Gauge> getGauges(River river) {
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25 return getGauges(river.getName());
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26 }
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27
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28
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29 public static Gauge getGauge(String gaugeName) {
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30 Session session = SessionHolder.HOLDER.get();
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31 Query query = session.createQuery(
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32 "from Gauge where name=:name");
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33 query.setParameter("name", gaugeName);
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34
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35 List<Gauge> res = query.list();
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36
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37 return res.isEmpty() ? null : res.get(0);
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38 }
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39
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40
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41 public static List<Gauge> getGauges(String river) {
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42 Session session = SessionHolder.HOLDER.get();
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43 Query query = session.createQuery(
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44 "from Gauge where river.name=:name");
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45 query.setParameter("name", river);
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46 return query.list();
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47 }
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48
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49 public static List<Gauge> filterRanges(
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50 List<Gauge> gauges,
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51 List<double []> ranges
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52 ) {
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53 // XXX: Inefficent!
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54 ArrayList<Range> rs = new ArrayList<Range>();
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55 for (double [] range: ranges) {
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56 double a = range[0];
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57 double b = range[1];
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58 rs.add(new Range(Math.min(a, b), Math.max(a, b), null));
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59 }
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60 return filter(gauges, rs);
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61 }
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62
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63 public static List<Gauge> filter(List<Gauge> gauges, List<Range> ranges) {
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64 // TODO: Make it an HQL filter!
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65 ArrayList<Gauge> out = new ArrayList<Gauge>();
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66 for (Gauge gauge: gauges) {
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67 Range range = gauge.getRange();
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68 for (Range cmp: ranges) {
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69 if (range.intersects(cmp)) {
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70 out.add(gauge);
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71 break;
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72 }
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73 }
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74 }
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75 return out;
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76 }
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77 }
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78 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org