Mercurial > dive4elements > river

annotate flys-backend/src/main/java/de/intevation/flys/importer/ImportFlowVelocityMeasurement.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 ac5bd90697c1
children 4ee97d914501
rev   line source
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8fe9c6584b93 Added importer classes used during the import process of flow velocity measurements.
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1 package de.intevation.flys.importer;
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2
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3 import java.sql.SQLException;
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4 import java.util.ArrayList;
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5 import java.util.List;
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6
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7 import org.apache.log4j.Logger;
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8
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9 import org.hibernate.Session;
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10 import org.hibernate.Query;
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11 import org.hibernate.exception.ConstraintViolationException;
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12
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13 import de.intevation.flys.model.FlowVelocityMeasurement;
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14 import de.intevation.flys.model.River;
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15
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16
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17 public class ImportFlowVelocityMeasurement {
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18
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19 private static final Logger log = Logger
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20 .getLogger(ImportFlowVelocityMeasurement.class);
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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<ImportFlowVelocityMeasurementValue> values;
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25
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26 private FlowVelocityMeasurement peer;
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27
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28 public ImportFlowVelocityMeasurement() {
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29 this(null);
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30 }
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31
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32 public ImportFlowVelocityMeasurement(String description) {
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33 this.description = description;
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34 this.values = new ArrayList<ImportFlowVelocityMeasurementValue>();
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35 }
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36
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37 public void setDescription(String description) {
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38 this.description = description;
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39 }
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40
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41 public void addValue(ImportFlowVelocityMeasurementValue value) {
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42 this.values.add(value);
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43 }
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44
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45 public void storeDependencies(River river) throws SQLException,
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46 ConstraintViolationException {
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47 log.debug("store dependencies");
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48
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49 FlowVelocityMeasurement peer = getPeer(river);
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50
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51 if (peer != null) {
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52 for (ImportFlowVelocityMeasurementValue value : values) {
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53 value.storeDependencies(peer);
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54 }
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55 }
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56 }
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57
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58 public FlowVelocityMeasurement getPeer(River river) {
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59 if (peer == null) {
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60 Session session = ImporterSession.getInstance()
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61 .getDatabaseSession();
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62
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63 Query query = session
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64 .createQuery("from FlowVelocityMeasurement where "
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65 + " river=:river and " + " description=:description");
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66
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67 query.setParameter("river", river);
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68 query.setParameter("description", description);
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69
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70 List<FlowVelocityMeasurement> measurement = query.list();
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71
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72 if (measurement.isEmpty()) {
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73 peer = new FlowVelocityMeasurement(river, description);
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74
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75 session.save(peer);
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76 }
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77 else {
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78 peer = measurement.get(0);
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79 }
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80 }
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81
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82 return peer;
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83 }
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84 }
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85 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org