Mercurial > dive4elements > river

annotate backend/src/main/java/org/dive4elements/river/importer/ImportGrainFraction.java @ 6955:94cb1845c667

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(issue1452) Coalesce to zero to avoid NaN arithmetic.
author Andre Heinecke <aheinecke@intevation.de>
date Fri, 30 Aug 2013 15:45:14 +0200
parents 4c3ccf2b0304
children 1e327d86c898
rev   line source
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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.importer;
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10
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11 import java.util.List;
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12
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13 import org.apache.log4j.Logger;
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14
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15 import org.hibernate.Session;
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16 import org.hibernate.Query;
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17
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18 import org.dive4elements.river.model.GrainFraction;
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19
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20
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21 public class ImportGrainFraction {
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22
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23 private static final Logger log =
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24 Logger.getLogger(ImportGrainFraction.class);
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25
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26 private String name;
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27
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28 private Double lower;
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29 private Double upper;
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30
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31 private GrainFraction peer;
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32
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33
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34 public ImportGrainFraction(String name) {
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35 this.name = name;
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36 }
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37
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38
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39 public ImportGrainFraction(
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40 String name,
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41 Double lower,
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42 Double upper
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43 ) {
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44 this.name = name;
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45 this.lower = lower;
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46 this.upper = upper;
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47 }
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48
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49
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50 public void storeDependencies() {
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51 log.debug("store dependencies");
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52
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53 getPeer();
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54 }
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55
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56
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57 public GrainFraction getPeer() {
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58 log.debug("get peer");
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59
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60 if (peer == null) {
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61 Session session = ImporterSession.getInstance().getDatabaseSession();
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62 Query query = session.createQuery(
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63 "from GrainFraction where " +
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64 " name=:name and " +
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65 " lower=:lower and " +
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66 " upper=:upper"
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67 );
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68
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69 query.setParameter("name", name);
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70 query.setParameter("lower", lower);
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71 query.setParameter("upper", upper);
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72
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73 List<GrainFraction> fractions = query.list();
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74 if (fractions.isEmpty()) {
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75 log.info("create new GrainFraction");
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76
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77 peer = new GrainFraction(name, lower, upper);
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78 session.save(peer);
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79 }
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80 else {
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81 peer = fractions.get(0);
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82 }
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83 }
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84
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85 return peer;
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86 }
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87 }
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88 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org