Mercurial > dive4elements > river
annotate backend/src/main/java/org/dive4elements/river/importer/ImportCrossSectionLine.java @ 5932:c7951390fd58
Importer: Log an error if parsing a STA file failed.
author | Sascha L. Teichmann <teichmann@intevation.de> |
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date | Wed, 08 May 2013 17:52:54 +0200 |
parents | 4dd33b86dc61 |
children | 4c3ccf2b0304 |
rev | line source |
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1 /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde |
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2 * Software engineering by Intevation GmbH |
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3 * |
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4 * This file is Free Software under the GNU AGPL (>=v3) |
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5 * and comes with ABSOLUTELY NO WARRANTY! Check out the |
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6 * documentation coming with Dive4Elements River for details. |
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7 */ |
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8 |
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9 package org.dive4elements.river.importer; |
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10 |
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11 import org.dive4elements.river.model.CrossSection; |
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12 import org.dive4elements.river.model.CrossSectionPoint; |
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13 import org.dive4elements.river.model.CrossSectionLine; |
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14 |
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15 import org.hibernate.Session; |
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16 import org.hibernate.Query; |
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17 |
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18 import java.util.List; |
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19 import java.util.Comparator; |
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20 import java.util.Map; |
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21 import java.util.TreeMap; |
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22 |
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23 /** |
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24 * A CrossSectionLine (containing points) ready to be transformed into a mapped |
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25 * object and written to db (used in importer). |
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26 */ |
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27 public class ImportCrossSectionLine |
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28 { |
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29 public static final Comparator<CrossSectionPoint> INDEX_CMP = |
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30 new Comparator<CrossSectionPoint>() { |
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31 public int compare(CrossSectionPoint a, CrossSectionPoint b) { |
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32 return a.getColPos().compareTo(b.getColPos()); |
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33 } |
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34 }; |
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35 |
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36 protected Double km; |
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37 protected ImportCrossSection crossSection; |
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38 protected List<XY> points; |
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39 |
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40 protected CrossSectionLine peer; |
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41 |
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42 public ImportCrossSectionLine() { |
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43 } |
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44 |
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45 public ImportCrossSectionLine(Double km, List<XY> points) { |
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46 this.km = km; |
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47 this.points = points; |
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48 } |
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49 |
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50 public ImportCrossSection getCrossSection() { |
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51 return crossSection; |
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52 } |
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53 |
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54 public void setCrossSection(ImportCrossSection crossSection) { |
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55 this.crossSection = crossSection; |
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56 } |
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57 |
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58 public Double getKm() { |
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59 return km; |
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60 } |
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61 |
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62 public void setKm(Double km) { |
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63 this.km = km; |
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64 } |
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65 |
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66 public void storeDependencies() { |
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67 storePoints(); |
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68 } |
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69 |
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70 |
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71 /** Write a line and its points. */ |
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72 protected void storePoints() { |
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73 CrossSectionLine csl = getPeer(); |
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74 |
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75 Map<CrossSectionPoint, CrossSectionPoint> map = |
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76 new TreeMap<CrossSectionPoint, CrossSectionPoint>(INDEX_CMP); |
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77 |
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78 // Build index for faster (index) collision lookup. |
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79 List<CrossSectionPoint> ps = csl.getPoints(); |
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80 if (ps != null) { |
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81 for (CrossSectionPoint point: ps) { |
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82 map.put(point, point); |
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83 } |
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84 } |
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85 |
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86 Session session = |
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87 ImporterSession.getInstance().getDatabaseSession(); |
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88 |
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89 CrossSectionPoint key = new CrossSectionPoint(); |
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90 |
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91 // Somehow it looks as if even with the map it is still possible that |
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92 // multiple points with same id enter hibernate (and then violate a |
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93 // constraint). -> TODO |
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94 for (XY xy: points) { |
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95 key.setColPos(xy.getIndex()); |
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96 CrossSectionPoint csp = map.get(key); |
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97 if (csp == null) { // create new |
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98 csp = new CrossSectionPoint( |
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99 csl, key.getColPos(), |
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100 Double.valueOf(xy.getX()), |
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101 Double.valueOf(xy.getY())); |
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102 } |
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103 else { // update old |
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104 csp.setX(Double.valueOf(xy.getX())); |
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105 csp.setY(Double.valueOf(xy.getY())); |
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106 } |
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107 session.save(csp); |
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108 } |
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109 } |
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110 |
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111 public CrossSectionLine getPeer() { |
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112 if (peer == null) { |
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113 CrossSection cs = crossSection.getPeer(); |
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114 |
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115 Session session = |
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116 ImporterSession.getInstance().getDatabaseSession(); |
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117 |
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118 Query query = session.createQuery( |
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119 "from CrossSectionLine where crossSection=:cs and km=:km"); |
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120 query.setParameter("cs", cs); |
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121 query.setParameter("km", km); |
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122 |
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123 List<CrossSectionLine> lines = query.list(); |
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124 if (lines.isEmpty()) { |
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125 peer = new CrossSectionLine(cs, km); |
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126 session.save(peer); |
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127 } |
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128 else { |
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129 peer = lines.get(0); |
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130 } |
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131 } |
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132 return peer; |
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133 } |
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134 } |
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135 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |