Mercurial > dive4elements > river

annotate flys-backend/src/main/java/de/intevation/flys/importer/ImportSQRelation.java @ 3329:cc8fc6b29649

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Store sq relations into database after parsing. flys-backend/trunk@4647 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Wed, 13 Jun 2012 08:12:00 +0000
parents a41f279a66e2
children 0d27d02b1208
rev   line source
3328
a41f279a66e2 Added parser and import classes to import MINFO sq relations.
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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.Query;
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10 import org.hibernate.Session;
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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.River;
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14 import de.intevation.flys.model.SQRelation;
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15 import de.intevation.flys.model.TimeInterval;
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16
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17
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18 public class ImportSQRelation {
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19
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20 private static Logger log = Logger.getLogger(ImportSQRelation.class);
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21
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22
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23 private ImportTimeInterval timeInterval;
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24
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25 private String description;
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26
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27 private List<ImportSQRelationValue> values;
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28
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29 private SQRelation peer;
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30
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31
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32 public ImportSQRelation() {
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33 this.values = new ArrayList<ImportSQRelationValue>();
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34 }
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35
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36
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37 public void storeDependencies(River river)
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38 throws SQLException, ConstraintViolationException
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39 {
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40 log.info("store dependencies");
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41
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42 SQRelation peer = getPeer(river);
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43
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44 timeInterval.getPeer();
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45
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46 int count = 0;
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47
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48 for (ImportSQRelationValue value: values) {
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49 try {
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50 value.storeDependencies(peer);
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51 count++;
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52 }
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53 catch (SQLException sqle) {
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54 log.warn("Unable to store sq relation value.", sqle);
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55 }
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56 catch (ConstraintViolationException cve) {
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57 log.warn("Unable to store sq relation value.", cve);
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58 }
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59 }
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60
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61 log.info("stored " + count + " sq relation values.");
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62 }
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63
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64
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65 public SQRelation getPeer(River river) {
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66 log.debug("getPeer()");
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67
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68 if (peer == null) {
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69 TimeInterval timeInter = timeInterval.getPeer();
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70
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71 if (timeInter == null) {
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72 log.warn("Cannot determine sq relation without time interval");
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73 return null;
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74 }
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75
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76 Session session = ImporterSession.getInstance().getDatabaseSession();
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77
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78 Query query = session.createQuery(
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79 "FROM SQRelation WHERE river=:river AND timeInterval=:timeInter"
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80 );
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81
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82 query.setParameter("river", river);
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83 query.setParameter("timeInter", timeInter);
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84
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85 List<SQRelation> sq = query.list();
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86
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87 if (sq.isEmpty()) {
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88 log.info("create new SQ relation '" + description + "'");
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89
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90 peer = new SQRelation(
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91 river,
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92 timeInter,
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93 description
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94 );
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95 session.save(peer);
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96 }
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97 else {
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98 peer = sq.get(0);
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99 }
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100 }
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101
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102 return peer;
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103 }
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104
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105
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106 public void setDescription(String description) {
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107 this.description = description;
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108 }
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109
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110
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111 public void setTimeInterval(ImportTimeInterval timeInterval) {
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112 this.timeInterval = timeInterval;
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113 }
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114
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115
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116 public void addValue(ImportSQRelationValue value) {
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117 if (value != null) {
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118 this.values.add(value);
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119 }
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120 }
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121 }
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122 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org