Mercurial > dive4elements > river

annotate flys-backend/src/main/java/de/intevation/flys/importer/ImportRange.java @ 188:003ac16812dd

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Store annotations in backend. flys-backend/trunk@1518 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Fri, 18 Mar 2011 12:10:33 +0000
parents cf8cbcb6a10d
children bc3747a371cc
rev   line source
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1 package de.intevation.flys.importer;
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2
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3 import de.intevation.flys.model.Range;
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4 import de.intevation.flys.model.River;
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5
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6 import org.hibernate.Session;
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7 import org.hibernate.Query;
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8
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9 import java.util.List;
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10
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11 import java.math.BigDecimal;
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12
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13 import org.apache.log4j.Logger;
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14
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15 public class ImportRange
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16 implements Comparable<ImportRange>
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17 {
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18 private static Logger log = Logger.getLogger(ImportRange.class);
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19
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20 protected Double from;
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21 protected Double to;
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22
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23 protected Range peer;
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24
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25 public ImportRange() {
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26 }
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27
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28 public ImportRange(Double from, Double to) {
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29 this.from = from;
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30 this.to = to;
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31 }
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32
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33 private static final int compare(Double a, Double b) {
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34 if (a == null && b == null) {
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35 return 0;
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36 }
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37 if (a == null && b != null) {
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38 return -1;
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39 }
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40 if (a != null && b == null) {
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41 return +1;
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42 }
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43 return a.compareTo(b);
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44 }
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45
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46 public int compareTo(ImportRange other) {
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47 int cmp = compare(from, other.from);
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48 if (cmp != 0) return cmp;
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49 return compare(to, other.to);
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50 }
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51
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52 public Double getFrom() {
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53 return from;
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54 }
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55
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56 public void setFrom(Double from) {
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57 this.from = from;
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58 }
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59
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60 public Double getTo() {
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61 return to;
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62 }
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63
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64 public void setTo(Double to) {
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65 this.to = to;
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66 }
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67
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68 public Range getPeer(River river) {
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69 if (peer == null) {
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70 Session session = Importer.sessionHolder.get();
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71 Query query = session.createQuery(
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72 "from Range where a=:a and b=:b and river.id=:river");
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73 BigDecimal a = from != null ? BigDecimal.valueOf(from) : null;
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74 BigDecimal b = to != null ? BigDecimal.valueOf(to) : null;
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75 query.setParameter("a", a);
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76 query.setParameter("b", b);
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77 query.setParameter("river", river.getId());
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78 List<Range> ranges = query.list();
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79 if (ranges.isEmpty()) {
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80 peer = new Range(a, b, river);
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81 session.save(peer);
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82 }
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83 else {
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84 peer = ranges.get(0);
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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