Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/artifacts/states/WaterlevelFetcher.java @ 9425:3f49835a00c3

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Extended CrossSectionFacet so it may fetch different data from within the artifact result. Also allows to have acces to the potentially already computed artifact result via its normal computation cache.
author gernotbelger
date Fri, 17 Aug 2018 15:31:02 +0200
parents 392745cccede
children 93389a05119e
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, from, to);
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83
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84 if (d4eArtifact instanceof StaticWQKmsArtifact)
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85 return fetchStaticWQKmsArtifactWaterlevel((StaticWQKmsArtifact) d4eArtifact, from, to);
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86
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87 if (d4eArtifact instanceof WINFOArtifact)
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88 return fetchWINFOArtifactWaterlevel(context, (WINFOArtifact) d4eArtifact, idx, from, to);
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89
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90 if (d4eArtifact instanceof FixationArtifact)
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91 return fetchFixationArtifactWaterlevel(context, (FixationArtifact) d4eArtifact, idx, from, to);
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92
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93 log.warn(String.format("Get Waterlevel from %s not implemented!", d4eArtifact.getClass().getSimpleName()));
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94 return null;
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95 }
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96
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97 // REMARK: instead of several helper methods here this would be a good place for abstraction, in order to push
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98 // this logic back to the corresponding artifacts. However this will most certainly break existing
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99 // artifact-serialization
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100
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101 private WaterlevelData fetchStaticWKmsArtifactWaterlevel(final StaticWKmsArtifact staticWKms, final double from, final double to) {
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102
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103 log.debug("WDifferencesState obtain data from StaticWKms");
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104
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105 final WKms wkms = staticWKms.getWKms(from, to);
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106
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107 if (wkms != null) {
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108 final int year = fetchStaticWKmsYear(staticWKms);
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109 return new WaterlevelData(wkms, year, false, false);
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110 }
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111
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112 log.error("No WKms from Static artifact for this range.");
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113 return null;
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114 }
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115
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116 private WaterlevelData fetchStaticWQKmsArtifactWaterlevel(final StaticWQKmsArtifact staticWKms, final double from, final double to) {
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117
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118 log.debug("WDifferencesState obtain data from StaticWQKms");
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119
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120 final WQKms wkms = staticWKms.getWQKms(from, to);
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121
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122 if (wkms != null) {
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123 final int year = fetchStaticWKmsYear(staticWKms);
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124 return new WaterlevelData(wkms, year, false, false);
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125 }
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126
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127 log.error("No WKms from Static artifact for this range.");
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128 return null;
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129 }
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130
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131 private WaterlevelData fetchWINFOArtifactWaterlevel(final CallContext context, final WINFOArtifact flys, final int idx, final double from,
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132 final double to) {
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133 log.debug("Get WKms from WINFOArtifact");
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134
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135 final WKms[] wkms = (WKms[]) flys.getWaterlevelData(context).getData();
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136
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137 if (wkms == null || wkms.length == 0) {
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138 log.warn("no waterlevels in artifact");
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139 return null;
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140 }
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141
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142 if (wkms.length < idx + 1) {
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143 log.warn("Not enough waterlevels in artifact.");
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144 return null;
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145 }
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146
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147 // REAMRK: W_INFO results does not know any 'year'
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148 final int year = -1;
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149 return new WaterlevelData(wkms[idx], year, false, true).filterByRange(from, to);
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150 }
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151
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152 private WaterlevelData fetchFixationArtifactWaterlevel(final CallContext context, final FixationArtifact fixation, final int idx, final double from,
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153 final double to) {
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154
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155 log.debug("Get WKms from FixationArtifact.");
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156
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157 final CalculationResult r = (CalculationResult) fixation.compute(context, ComputeType.ADVANCE, false);
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158 final FixRealizingResult frR = (FixRealizingResult) r.getData();
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159
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160 // Get W/Q input per gauge for this case.
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161 final FixRealizingAccess fixAccess = new FixRealizingAccess(fixation);
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162 final List<Segment> segments = fixAccess.getSegments();
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163 final boolean isFixRealize = (segments != null && !segments.isEmpty());
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164
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165 /* ugly but necessary to keep this logic at least a bit inside the FixRealizing stuff */
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166 final FixRealizingCalculationExtended calculation = new FixRealizingCalculationExtended(fixAccess);
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167 final int year = calculation.determineMeanYear();
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168
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169 // REMARK: same logic as in WaterlevelExporter
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170 final boolean showAllGauges = isFixRealize;
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171
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172 return new WaterlevelData(frR.getWQKms()[idx], year, showAllGauges, true).filterByRange(from, to);
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173 }
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174
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175 /**
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176 * Fetches the 'year' for a staticXXX-artifact.
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177 * REMARK: actually this should happen inside the staticWKms artifact and eventually in the WKmsFactory, but the code
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178 * there is already awful and it will also break the old artifact-serialization...
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179 */
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180 private int fetchStaticWKmsYear(final D4EArtifact staticWKms) {
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181
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182 final int colPos = Integer.parseInt(staticWKms.getDataAsString("col_pos"));
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183 final int wstId = Integer.parseInt(staticWKms.getDataAsString("wst_id"));
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184
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185 final WstColumn wstColumn = WstColumnFactory.getWstColumn(wstId, colPos);
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186 final TimeInterval timeInterval = wstColumn.getTimeInterval();
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187 if (timeInterval == null)
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188 return -1;
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189
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190 final Date startTime = timeInterval.getStartTime();
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191 if (startTime == null)
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192 return -1;
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193
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194 // REMARK: the times are stored without timezone in the DB, so it is unclear what hibernate makes of it.
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195 // We simply use the default timezone here and hope we never get problems...
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196 // 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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197 // no change anything regarding the year.
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198 final Calendar cal = Calendar.getInstance();
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199 cal.setTime(startTime);
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200 return cal.get(Calendar.YEAR);
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201 }
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202 }
http://dive4elements.wald.intevation.org