Mercurial > dive4elements > river

annotate flys-backend/src/main/java/de/intevation/flys/importer/ImportWaterlevel.java @ 3943:a5b003595d6c

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Store minfo values into database only if their peer has been successfully stored. flys-backend/trunk@5520 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Wed, 19 Sep 2012 10:05:36 +0000
parents a65b5b0ade6f
children 1c34acb084ee
rev   line source
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6a9f45697f81 Added importer classes used for MINFO specific waterlevel import.
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1 package de.intevation.flys.importer;
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2
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3 import java.util.ArrayList;
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4 import java.util.List;
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5
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6 import org.apache.log4j.Logger;
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7
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8 import org.hibernate.Session;
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9 import org.hibernate.Query;
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10
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11 import de.intevation.flys.model.River;
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12 import de.intevation.flys.model.Unit;
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13 import de.intevation.flys.model.Waterlevel;
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14
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15
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16 public class ImportWaterlevel {
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17
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18 private static final Logger log = Logger.getLogger(ImportWaterlevel.class);
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19
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20 private ImportUnit unit;
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21
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22 private String description;
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23
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24 private List<ImportWaterlevelQRange> qRanges;
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25
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26 private Waterlevel peer;
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27
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28 public ImportWaterlevel(String description) {
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29 this.qRanges = new ArrayList<ImportWaterlevelQRange>();
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30
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31 this.description = description;
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32 }
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33
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34 public void setUnit(ImportUnit unit) {
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35 this.unit = unit;
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36 }
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37
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38 public void addValue(ImportWaterlevelQRange qRange) {
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39 this.qRanges.add(qRange);
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40 }
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41
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42 public void storeDependencies(River river) {
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43 log.info("store dependencies");
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44
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45 Waterlevel peer = getPeer(river);
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46
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47 if (peer != null) {
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48 int i = 0;
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49
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50 for (ImportWaterlevelQRange qRange : qRanges) {
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51 qRange.storeDependencies(peer);
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52 i++;
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53 }
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54
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55 log.info("stored " + i + " waterlevel q ranges");
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56 }
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57 }
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58
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59 public Waterlevel getPeer(River river) {
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60 Unit u = unit != null ? unit.getPeer() : null;
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61 if (u == null) {
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62 log.warn("skip invalid waterlevel - no unit set!");
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63 return null;
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64 }
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65
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66 if (peer == null) {
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67 Session session = ImporterSession.getInstance()
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68 .getDatabaseSession();
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69 Query query = session.createQuery("from Waterlevel where "
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70 + " river=:river and " + " unit=:unit and "
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71 + " description=:description");
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72
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73 query.setParameter("river", river);
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74 query.setParameter("unit", u);
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75 query.setParameter("description", description);
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76
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77 List<Waterlevel> wsts = query.list();
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78 if (wsts.isEmpty()) {
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79 peer = new Waterlevel(river, u, description);
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80 session.save(peer);
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81 }
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82 else {
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83 peer = wsts.get(0);
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84 }
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85 }
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86
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87 return peer;
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88 }
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89 }
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90 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org