Mercurial > dive4elements > river

annotate flys-backend/src/main/java/de/intevation/flys/importer/Importer.java @ 180:3908bfb2aa43

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Store imported rivers into database. Needs testing! flys-backend/trunk@1488 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Wed, 16 Mar 2011 18:23:45 +0000
parents 31895d24387e
children 1c0afb01bc93
rev   line source
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31895d24387e Importer: Added info gew parser.
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1 package de.intevation.flys.importer;
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2
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3 import java.io.File;
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4 import java.io.IOException;
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5
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6 import java.util.List;
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7
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8 import org.apache.log4j.Logger;
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9
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10 import org.hibernate.SessionFactory;
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11 import org.hibernate.Session;
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12 import org.hibernate.Transaction;
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13 import org.hibernate.Query;
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14
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15 import de.intevation.flys.backend.SessionFactoryProvider;
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16
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17 import de.intevation.flys.model.River;
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18
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19 public class Importer
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20 {
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21 private static Logger log = Logger.getLogger(Importer.class);
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22
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23 protected List<ImportRiver> rivers;
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24
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25 protected Session session;
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26
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27 public Importer() {
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28 }
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29
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30 public Importer(List<ImportRiver> rivers) {
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31 this.rivers = rivers;
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32 }
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33
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34 public List<ImportRiver> getRivers() {
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35 return rivers;
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36 }
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37
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38 public void setRivers(List<ImportRiver> rivers) {
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39 this.rivers = rivers;
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40 }
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41
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42 public void writeRivers() {
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43 Query query = session.createQuery("select River where name=:name");
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44 for (ImportRiver iriver: rivers) {
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45 query.setString("name", iriver.getName());
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46 List<River> dbrivers = (List<River>)query.list();
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47 if (dbrivers.isEmpty()) {
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48 River dbriver = new River(iriver.getName());
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49 session.save(dbriver);
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50 }
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51 }
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52 }
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53
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54 public void writeToDatabase() {
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55 SessionFactory sessionFactory =
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56 SessionFactoryProvider.createSessionFactory();
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57
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58 session = sessionFactory.openSession();
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59 Transaction tx = null;
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60
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61 try {
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62 tx = session.beginTransaction();
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63
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64 writeRivers();
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65
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66 tx.commit();
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67 }
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68 catch (RuntimeException re) {
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69 if (tx != null) {
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70 tx.rollback();
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71 }
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72 throw re;
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73 }
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74 finally {
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75 if (session != null) {
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76 session.close();
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77 session = null;
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78 }
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79 }
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80 }
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81
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82 public static void main(String [] args) {
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83
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84 InfoGewParser infoGewParser = new InfoGewParser();
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85
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86 for (String gew: args) {
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87 log.info("parsing info gew file: " + gew);
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88 try {
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89 infoGewParser.parse(new File(gew));
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90 }
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91 catch (IOException ioe) {
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92 log.error("cannot while parsing: " + gew);
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93 }
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94 }
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95
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96 new Importer(infoGewParser.getRivers()).writeToDatabase();
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97 }
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98 }
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99 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org