Mercurial > dive4elements > river

annotate flys-backend/src/main/java/de/intevation/flys/importer/ImportFlowVelocityModel.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 5b54a648f702
children c7ce7c9e405e
rev   line source
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85b25e74594f Added temp classes used during the import process of flow velocity data.
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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.DischargeZone;
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14 import de.intevation.flys.model.FlowVelocityModel;
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15 import de.intevation.flys.model.River;
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16
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17
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18 public class ImportFlowVelocityModel {
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19
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20 private static final Logger log = Logger
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21 .getLogger(ImportFlowVelocityModel.class);
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22
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23 private String description;
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24
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25 private ImportDischargeZone dischargeZone;
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26
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27 private List<ImportFlowVelocityModelValue> values;
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28
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29 private FlowVelocityModel peer;
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30
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31 public ImportFlowVelocityModel() {
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32 values = new ArrayList<ImportFlowVelocityModelValue>();
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33 }
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34
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35 public ImportFlowVelocityModel(ImportDischargeZone dischargeZone,
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36 String description) {
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37 this();
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38
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39 this.dischargeZone = dischargeZone;
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40 this.description = description;
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41 }
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42
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43 public void setDischargeZone(ImportDischargeZone dischargeZone) {
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44 this.dischargeZone = dischargeZone;
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45 }
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46
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47 public void setDescription(String description) {
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48 this.description = description;
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49 }
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50
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51 public void addValue(ImportFlowVelocityModelValue value) {
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52 this.values.add(value);
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53 }
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54
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55 public void storeDependencies(River river) throws SQLException,
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56 ConstraintViolationException {
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57 log.debug("store dependencies");
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58
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59 if (dischargeZone == null) {
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60 log.warn("skip flow velocity model: No discharge zone specified.");
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61 return;
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62 }
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63
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64 dischargeZone.storeDependencies(river);
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65
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66 FlowVelocityModel peer = getPeer(river);
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67
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68 if (peer != null) {
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69 int i = 0;
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70
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71 for (ImportFlowVelocityModelValue value : values) {
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72 value.storeDependencies(peer);
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73 i++;
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74 }
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75
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76 log.info("stored " + i + " flow velocity model values.");
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77 }
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78 }
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79
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80 public FlowVelocityModel getPeer(River river) {
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81 if (peer == null) {
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82 Session session = ImporterSession.getInstance()
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83 .getDatabaseSession();
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84
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85 DischargeZone zone = dischargeZone.getPeer(river);
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86
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87 Query query = session.createQuery("from FlowVelocityModel where "
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88 + " river=:river and " + " dischargeZone=:dischargeZone");
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89
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90 query.setParameter("river", river);
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91 query.setParameter("dischargeZone", zone);
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92
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93 List<FlowVelocityModel> model = query.list();
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94
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95 if (model.isEmpty()) {
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96 peer = new FlowVelocityModel(river, zone);
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97 session.save(peer);
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98 }
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99 else {
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100 peer = model.get(0);
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101 }
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102 }
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103
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104 return peer;
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105 }
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106 }
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107 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org