Mercurial > dive4elements > river
annotate artifacts/src/main/java/org/dive4elements/river/artifacts/model/OfficialLineFinder.java @ 6395:d2803cc7a338
Artifacts: Official lines: Only apply in Q-Calculations and filter against the ranges of the gauges.
author | Sascha L. Teichmann <teichmann@intevation.de> |
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date | Fri, 21 Jun 2013 16:28:47 +0200 |
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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 final Range MAX_RANGE = new Range(-Double.MAX_VALUE, +Double.MAX_VALUE); |
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140 |
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141 private static final String nn(String s) { |
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142 return s != null ? s : ""; |
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143 } |
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144 |
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145 public static Range extractRange(D4EArtifact artifact) { |
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146 String mode = nn(artifact.getDataAsString("ld_mode")); |
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147 String locations = nn(artifact.getDataAsString("ld_locations")); |
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148 String from = nn(artifact.getDataAsString("ld_from")); |
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149 String to = nn(artifact.getDataAsString("ld_to")); |
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150 |
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151 if (mode.equals("location")) { |
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152 try { |
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153 String loc = locations.replace(" ", ""); |
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154 String[] split = loc.split(","); |
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155 if (split.length < 1) { |
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156 return MAX_RANGE; |
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157 } |
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158 double min = Double.parseDouble(split[0]); |
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159 double max = min; |
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160 for (int i = 1; i < split.length; ++i) { |
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161 double v = Double.parseDouble(split[i]); |
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162 if (v > max) max = v; |
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163 if (v < min) min = v; |
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164 } |
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165 return new Range(min, max); |
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166 } |
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167 catch (NumberFormatException nfe) { |
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168 return MAX_RANGE; |
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169 } |
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170 } |
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171 try { |
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172 return new Range(Double.parseDouble(from), Double.parseDouble(to)); |
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173 } |
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174 catch (NumberFormatException nfe) { |
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175 return MAX_RANGE; |
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176 } |
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177 } |
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178 |
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179 private static List<ValueRange> filterByRange(Range range, List<ValueRange> ranges) { |
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180 List<ValueRange> list = new ArrayList<ValueRange>(ranges.size()); |
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181 for (ValueRange r: ranges) { |
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182 if (r.intersects(range)) { |
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183 list.add(r); |
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184 } |
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185 } |
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186 return list; |
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187 } |
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188 |
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189 private static boolean isQ(D4EArtifact artifact) { |
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190 Boolean b = artifact.getDataAsBoolean("wq_isq"); |
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191 return b != null && b; |
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192 } |
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193 |
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194 public static List<OfficialLine> findOfficialLines(D4EArtifact artifact) { |
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195 |
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196 if (!isQ(artifact)) { // Only handle Q calculations |
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197 return Collections.<OfficialLine>emptyList(); |
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198 } |
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199 |
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200 Map<String, List<ValueRange>> rivers2officialLines = getAll(); |
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201 |
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202 String riverName = nn(artifact.getDataAsString("river")); |
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203 |
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204 List<ValueRange> ranges = rivers2officialLines.get(riverName); |
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205 |
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206 if (ranges == null) { |
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207 return Collections.<OfficialLine>emptyList(); |
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208 } |
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209 |
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210 ranges = filterByRange(extractRange(artifact), ranges); |
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211 |
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212 if (ranges.isEmpty()) { |
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213 return Collections.<OfficialLine>emptyList(); |
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214 } |
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215 |
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216 |
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217 // TODO: Figure out all the cases here. |
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218 |
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219 return Collections.<OfficialLine>emptyList(); |
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220 } |
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221 } |