Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/artifacts/model/OfficialLineFinder.java @ 6385:ef08c4f57ede

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Artifacts: First part of the official lines guessing.
author Sascha L. Teichmann <teichmann@intevation.de>
date Fri, 21 Jun 2013 12:46:59 +0200
parents
children d2803cc7a338
rev   line source
6385
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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.artifacts.model;
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10
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11 import java.util.ArrayList;
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12 import java.util.Collections;
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13 import java.util.HashMap;
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14 import java.util.List;
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15 import java.util.Map;
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16
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17 import net.sf.ehcache.Cache;
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18 import net.sf.ehcache.Element;
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19
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20 import org.dive4elements.river.artifacts.D4EArtifact;
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21 import org.dive4elements.river.artifacts.cache.CacheFactory;
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22 import org.dive4elements.river.model.Gauge;
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23 import org.dive4elements.river.model.MainValue;
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24 import org.dive4elements.river.model.NamedMainValue;
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25 import org.dive4elements.river.model.OfficialLine;
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26 import org.dive4elements.river.model.River;
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27 import org.dive4elements.river.model.Wst;
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28 import org.dive4elements.river.model.WstColumn;
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29
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30 public class OfficialLineFinder
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31 {
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32 public static final String CACHE_NAME = "official-lines";
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33
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34 // We will only have one entry in this cache.
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35 public static final String CACHE_KEY = CACHE_NAME;
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36
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37 public static final double EPSILON = 1e-4;
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38
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39
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40 public static class ValueRange extends Range {
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41
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42 private double value;
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43 private int wstId;
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44 private int columnPos;
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45
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46 public ValueRange(
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47 double start,
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48 double end,
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49 double value,
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50 int wstId,
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51 int columnPos
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52 ) {
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53 super(start, end);
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54 this.value = value;
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55 this.wstId = wstId;
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56 this.columnPos = columnPos;
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57 }
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58
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59 public boolean sameValue(double value) {
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60 return Math.abs(value - this.value) < EPSILON;
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61 }
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62
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63 public int getWstId() {
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64 return wstId;
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65 }
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66
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67 public int getColumnPos() {
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68 return columnPos;
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69 }
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70 }
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71
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72 public OfficialLineFinder() {
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73 }
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74
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75 public static Map<String, List<ValueRange>> getAll() {
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76 Cache cache = CacheFactory.getCache(CACHE_NAME);
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77
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78 if (cache == null) {
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79 return getAllUncached();
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80 }
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81
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82 Element element = cache.get(CACHE_KEY);
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83
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84 if (element != null) {
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85 return (Map<String, List<ValueRange>>)element.getValue();
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86 }
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87
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88 Map<String, List<ValueRange>> result = getAllUncached();
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89 if (result != null) {
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90 cache.put(new Element(CACHE_KEY, result));
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91 }
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92 return result;
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93
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94 }
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95
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96 public static Map<String, List<ValueRange>> getAllUncached() {
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97
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98 Map<String, List<ValueRange>> rivers2officialLines =
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99 new HashMap<String, List<ValueRange>>();
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100
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101
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102 for (OfficialLine line: OfficialLine.fetchAllOfficalLines()) {
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103 String name = line.getNamedMainValue().getName();
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104 WstColumn wc = line.getWstColumn();
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105 Wst wst = wc.getWst();
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106
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107 List<ValueRange> ranges = new ArrayList<ValueRange>();
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108
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109 River river = wst.getRiver();
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110 List<Gauge> gauges = river.getGauges();
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111 for (Gauge gauge: gauges) {
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112 List<MainValue> mainValues = gauge.getMainValues();
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113 for (MainValue mainValue: mainValues) {
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114 NamedMainValue nmv = mainValue.getMainValue();
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115 if (nmv.getName().equalsIgnoreCase(name)) {
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116 // found gauge with this main value
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117
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118 double from = gauge.getRange().getA().doubleValue();
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119 double to = gauge.getRange().getA().doubleValue();
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120 double value = mainValue.getValue().doubleValue();
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121 int wstId = wst.getId();
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122 int pos = wc.getPosition();
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123 ValueRange range =
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124 new ValueRange(from, to, value, wstId, pos);
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125 ranges.add(range);
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126 break;
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127 }
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128 }
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129 }
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130
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131 if (!ranges.isEmpty()) {
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132 rivers2officialLines.put(river.getName(), ranges);
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133 }
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134 }
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135
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136 return rivers2officialLines;
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137 }
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138
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139 public static List<OfficialLine> findOfficialLines(D4EArtifact artifact) {
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140
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141 Map<String, List<ValueRange>> rivers2officialLines = getAll();
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142
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143 String riverName = artifact.getDataAsString("river");
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144
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145 if (riverName == null) {
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146 return Collections.<OfficialLine>emptyList();
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147 }
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148
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149 List<ValueRange> ranges = rivers2officialLines.get(riverName);
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150
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151 if (ranges.isEmpty()) {
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152 return Collections.<OfficialLine>emptyList();
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153 }
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154
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155 // TODO: Figure out all the cases here.
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156
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157 return Collections.<OfficialLine>emptyList();
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158 }
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159 }
http://dive4elements.wald.intevation.org