Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/artifacts/states/WaterlevelFetcher.java @ 8964:45f1ad66560e

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Code cleanup concerning calculations: improved error handling; improved interpolation; bed heights are now always used for spatial discretisation
author gernotbelger
date Thu, 29 Mar 2018 15:48:17 +0200
parents 708f210ff242
children 392745cccede
rev   line source
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1 /** Copyright (C) 2017 by Bundesanstalt für Gewässerkunde
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2 * Software engineering by
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3 * Björnsen Beratende Ingenieure GmbH
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4 * Dr. Schumacher Ingenieurbüro für Wasser und Umwelt
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5 *
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6 * This file is Free Software under the GNU AGPL (>=v3)
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7 * and comes with ABSOLUTELY NO WARRANTY! Check out the
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8 * documentation coming with Dive4Elements River for details.
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9 */
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10 package org.dive4elements.river.artifacts.states;
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11
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12 import java.util.Calendar;
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13 import java.util.Date;
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14 import java.util.List;
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15
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16 import org.apache.commons.lang.math.DoubleRange;
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17 import org.apache.log4j.Logger;
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18 import org.dive4elements.artifacts.CallContext;
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19 import org.dive4elements.river.artifacts.D4EArtifact;
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20 import org.dive4elements.river.artifacts.FixationArtifact;
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21 import org.dive4elements.river.artifacts.StaticWKmsArtifact;
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22 import org.dive4elements.river.artifacts.StaticWQKmsArtifact;
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23 import org.dive4elements.river.artifacts.WINFOArtifact;
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24 import org.dive4elements.river.artifacts.access.FixRealizingAccess;
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25 import org.dive4elements.river.artifacts.model.Calculation;
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26 import org.dive4elements.river.artifacts.model.CalculationResult;
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27 import org.dive4elements.river.artifacts.model.Segment;
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28 import org.dive4elements.river.artifacts.model.WKms;
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29 import org.dive4elements.river.artifacts.model.WQKms;
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30 import org.dive4elements.river.artifacts.model.WstColumnFactory;
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31 import org.dive4elements.river.artifacts.model.fixings.FixRealizingCalculationExtended;
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32 import org.dive4elements.river.artifacts.model.fixings.FixRealizingResult;
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33 import org.dive4elements.river.artifacts.states.DefaultState.ComputeType;
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34 import org.dive4elements.river.model.TimeInterval;
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35 import org.dive4elements.river.model.WstColumn;
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36 import org.dive4elements.river.utils.RiverUtils;
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37
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38 /**
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39 * Helper class that accesses existing waterlevels (in most cases) from the data-cage.
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40 * This is mainly a refaktoring of org.dive4elements.river.artifacts.states.WDifferencesState.getWKms(String,
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41 * CallContext, double, double), adding more infos to the fetched water levels.
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42 *
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43 * @author Gernot Belger
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44 */
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45 public class WaterlevelFetcher {
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46 private static Logger log = Logger.getLogger(WaterlevelFetcher.class);
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47
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48 /**
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49 * @param simulationRange
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50 * This range is used to check if the found waterlevel covers it. It is NOT used to reduce the fetched data,
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51 * because in case of waterlevels we always need to full set in order to determine the relevant gauge.
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52 */
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53 public WaterlevelData findWaterlevel(final CallContext context, final String mingle, final DoubleRange simulationRange, final Calculation problems) {
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54
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55 final String[] def = mingle.split(";");
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56 final String uuid = def[0];
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57 // final String factory = def[1];
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58 final int idx = Integer.parseInt(def[2]);
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59 final String name = def[3];
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60 final D4EArtifact d4eArtifact = RiverUtils.getArtifact(uuid, context);
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61 if (d4eArtifact == null)
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62 return null;
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63
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64 final WaterlevelData data = fetchWaterlevelFromArtifact(context, d4eArtifact, idx, Double.NaN, Double.NaN);
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65 if (data == null) {
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66 problems.addProblem("waterlevelfetcher.missing", mingle);
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67 return null;
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68 }
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69
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70 if (!data.covers(simulationRange)) {
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71 problems.addProblem("waterlevelfetcher.empty", data.getName());
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72 return null;
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73 }
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74
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75 return data.withName(name);
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76 }
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77
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78 private WaterlevelData fetchWaterlevelFromArtifact(final CallContext context, final D4EArtifact d4eArtifact, final int idx, final double from,
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79 final double to) {
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80
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81 if (d4eArtifact instanceof StaticWKmsArtifact) {
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82 return fetchStaticWKmsArtifactWaterlevel((StaticWKmsArtifact) d4eArtifact, idx, from, to);
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83 }
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84
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85 if (d4eArtifact instanceof StaticWQKmsArtifact) {
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86 return fetchStaticWQKmsArtifactWaterlevel((StaticWQKmsArtifact) d4eArtifact, from, to);
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87 }
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88
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89 if (d4eArtifact instanceof WINFOArtifact)
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90 return fetchWINFOArtifactWaterlevel(context, (WINFOArtifact) d4eArtifact, idx, from, to);
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91
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92 if (d4eArtifact instanceof FixationArtifact)
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93 return fetchFixationArtifactWaterlevel(context, (FixationArtifact) d4eArtifact, idx, from, to);
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94
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95 log.warn(String.format("Get Waterlevel from %s not implemented!", d4eArtifact.getClass().getSimpleName()));
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96 return null;
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97 }
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98
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99 // REMARK: instead of several helper methods here this would be a good place for abstraction, in order to push
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100 // this logic back to the corresponding artifacts. However this will most certainly break existing
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101 // artifact-serialization
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102
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103 private WaterlevelData fetchStaticWKmsArtifactWaterlevel(final StaticWKmsArtifact staticWKms, final int idx, final double from, final double to) {
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104
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105 log.debug("WDifferencesState obtain data from StaticWKms");
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106
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107 final WKms wkms = staticWKms.getWKms(idx, from, to);
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108
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109 if (wkms != null) {
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110 final int year = fetchStaticWKmsYear(staticWKms);
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111 return new WaterlevelData(wkms, year);
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112 }
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113
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114 log.error("No WKms from Static artifact for this range.");
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115 return null;
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116 }
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117
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118 private WaterlevelData fetchStaticWQKmsArtifactWaterlevel(final StaticWQKmsArtifact staticWKms, final double from, final double to) {
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119
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120 log.debug("WDifferencesState obtain data from StaticWQKms");
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121
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122 final WQKms wkms = staticWKms.getWQKms(from, to);
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123
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124 if (wkms != null) {
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125 final int year = fetchStaticWKmsYear(staticWKms);
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126 return new WaterlevelData(wkms, year);
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127 }
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128
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129 log.error("No WKms from Static artifact for this range.");
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130 return null;
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131 }
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132
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133 private WaterlevelData fetchWINFOArtifactWaterlevel(final CallContext context, final WINFOArtifact flys, final int idx, final double from,
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134 final double to) {
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135 log.debug("Get WKms from WINFOArtifact");
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136
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137 final WKms[] wkms = (WKms[]) flys.getWaterlevelData(context).getData();
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138
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139 if (wkms == null || wkms.length == 0) {
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140 log.warn("no waterlevels in artifact");
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141 return null;
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142 }
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143
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144 if (wkms.length < idx + 1) {
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145 log.warn("Not enough waterlevels in artifact.");
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146 return null;
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147 }
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148
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149 // REAMRK: W_INFO results does not know any 'year'
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150 final int year = -1;
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151 return new WaterlevelData(wkms[idx], year).filterByRange(from, to);
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152 }
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153
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154 private WaterlevelData fetchFixationArtifactWaterlevel(final CallContext context, final FixationArtifact fixation, final int idx, final double from,
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155 final double to) {
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156
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157 log.debug("Get WKms from FixationArtifact.");
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158
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159 final CalculationResult r = (CalculationResult) fixation.compute(context, ComputeType.ADVANCE, false);
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160 final FixRealizingResult frR = (FixRealizingResult) r.getData();
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161
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162 // Get W/Q input per gauge for this case.
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163 final FixRealizingAccess fixAccess = new FixRealizingAccess(fixation);
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164 final List<Segment> segments = fixAccess.getSegments();
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165 final boolean isFixRealize = (segments != null && !segments.isEmpty());
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166
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167 /* ugly but necessary to keep this logic at least a bit inside the FixRealizing stuff */
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168 final FixRealizingCalculationExtended calculation = new FixRealizingCalculationExtended(fixAccess);
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169 final int year = calculation.determineMeanYear();
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170
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171 // REMARK: same logic as in WaterlevelExporter
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172 final boolean showAllGauges = isFixRealize;
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173
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174 return new WaterlevelData(frR.getWQKms()[idx], year, showAllGauges).filterByRange(from, to);
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175 }
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176
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177 /**
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178 * Fetches the 'year' for a staticXXX-artifact.
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179 * REMARK: actually this should happen inside the staticWKms artifact and eventually in the WKmsFactory, but the code
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180 * there is already awful and it will also break the old artifact-serialization...
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181 */
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182 private int fetchStaticWKmsYear(final D4EArtifact staticWKms) {
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183
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184 final int colPos = Integer.parseInt(staticWKms.getDataAsString("col_pos"));
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185 final int wstId = Integer.parseInt(staticWKms.getDataAsString("wst_id"));
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186
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187 final WstColumn wstColumn = WstColumnFactory.getWstColumn(wstId, colPos);
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188 final TimeInterval timeInterval = wstColumn.getTimeInterval();
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189 if (timeInterval == null)
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190 return -1;
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191
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192 final Date startTime = timeInterval.getStartTime();
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193 if (startTime == null)
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194 return -1;
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195
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196 // REMARK: the times are stored without timezone in the DB, so it is unclear what hibernate makes of it.
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197 // We simply use the default timezone here and hope we never get problems...
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198 // Actually we always have 12:00 as time in the db data, so a smal timeshift due to winter/sommertime or UTC/GMT+1 will
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199 // no change anything regarding the year.
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200 final Calendar cal = Calendar.getInstance();
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201 cal.setTime(startTime);
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202 return cal.get(Calendar.YEAR);
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203 }
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204 }
http://dive4elements.wald.intevation.org