Mercurial > dive4elements > river
annotate artifacts/src/main/java/org/dive4elements/river/artifacts/services/DischargeTablesOverview.java @ 8755:30b1ddadf275
(issue1801) Unify reference gauge finding code
The basic way as described in the method comment of the
determineRefGauge method is now used in the WINFOArtifact,
MainValuesService and RiverUtils.getGauge method.
RiverUtils.getGauge previously just returned the first
gauge found. While this is now a behavior change I believe
that it is always more correct then the undeterministic
behavior of the previous implmenentation.
author | Andre Heinecke <andre.heinecke@intevation.de> |
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date | Wed, 24 Jun 2015 14:07:26 +0200 |
parents | 321d6e50aebe |
children | 5e38e2924c07 |
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.artifacts.services; |
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10 |
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11 import java.awt.Color; |
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12 import java.text.DateFormat; |
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13 import java.text.ParseException; |
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14 import java.util.ArrayList; |
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15 import java.util.Collections; |
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16 import java.util.Date; |
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17 import java.util.List; |
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18 import java.util.Locale; |
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19 |
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20 import org.apache.log4j.Logger; |
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21 import org.jfree.chart.ChartFactory; |
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22 import org.jfree.chart.JFreeChart; |
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23 import org.jfree.chart.plot.Marker; |
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24 import org.jfree.chart.plot.PlotOrientation; |
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25 import org.jfree.chart.plot.XYPlot; |
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26 import org.jfree.data.xy.XYSeries; |
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27 import org.jfree.data.xy.XYSeriesCollection; |
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28 import org.w3c.dom.Document; |
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29 import org.w3c.dom.Element; |
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30 import org.w3c.dom.NodeList; |
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31 |
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32 import org.dive4elements.artifacts.CallMeta; |
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33 import org.dive4elements.artifacts.GlobalContext; |
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34 import org.dive4elements.river.artifacts.model.DischargeTables; |
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35 import org.dive4elements.river.artifacts.model.GaugesFactory; |
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36 import org.dive4elements.river.artifacts.resources.Resources; |
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37 import org.dive4elements.river.backend.SessionHolder; |
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38 import org.dive4elements.river.model.DischargeTable; |
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39 import org.dive4elements.river.model.Gauge; |
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40 import org.dive4elements.river.model.MainValue; |
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41 import org.dive4elements.river.model.TimeInterval; |
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42 |
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43 |
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44 /** Generate Discharge Table chart. */ |
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45 public class DischargeTablesOverview extends AbstractChartService { |
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46 |
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47 private static final Logger log = Logger |
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48 .getLogger(DischargeTablesOverview.class); |
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49 |
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50 private static final long serialVersionUID = 1L; |
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51 |
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52 public static final String I18N_CHART_TITLE = "gauge.discharge.service.chart.title"; |
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53 public static final String DEFAULT_CHART_TITLE = "Pegel: XXX"; |
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54 |
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55 public static final String I18N_CHART_X_AXIS_TITLE = "gauge.discharge.service.chart.x.title"; |
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56 public static final String DEFAULT_X_AXIS_TITLE = "Q [m^3/s]"; |
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57 |
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58 public static final String I18N_CHART_Y_AXIS_TITLE = "gauge.discharge.service.chart.y.title"; |
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59 public static final String DEFAULT_Y_AXIS_TITLE = "W [cm]"; |
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60 |
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61 public static final String I18N_CHART_SERIES_TITLE = "gauge.discharge.service.chart.series.title"; |
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62 public static final String DEFAULT_CHART_SERIES_TITLE = "Abflusskurve"; |
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63 |
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64 public static final String I18N_CHART_SERIES_TITLE_MASTER = "gauge.discharge.service.chart.series.title.master"; |
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65 public static final String DEFAULT_CHART_SERIES_TITLE_MASTER = "Aktuelle Abflusskurve"; |
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66 |
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67 public static final DateFormat DATE_FORMAT = DateFormat.getDateInstance( |
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68 DateFormat.SHORT, Locale.GERMANY); |
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69 |
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70 |
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71 @Override |
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72 protected void init() { |
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73 SessionHolder.acquire(); |
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74 } |
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75 |
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76 @Override |
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77 protected void finish() { |
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78 SessionHolder.release(); |
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79 } |
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80 |
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81 protected JFreeChart createChart(Document data, |
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82 GlobalContext globalContext, CallMeta callMeta) { |
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83 |
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84 Gauge gauge = extractGauge(data); |
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85 |
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86 if (gauge == null) { |
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87 log.warn("Could not determine Gauge from request!"); |
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88 return null; |
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89 } |
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90 |
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91 log.info("create discharge chart for gauge '" + gauge.getName() + "'"); |
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92 TimeInterval timerange = extractTimeInterval(data); |
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93 |
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94 List<DischargeTable> dts = getDischargeTables(gauge, timerange); |
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95 XYSeriesCollection dataset = new XYSeriesCollection(); |
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96 |
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97 for (DischargeTable dt : dts) { |
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98 try { |
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99 XYSeries series = createSeries(callMeta, dt); |
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100 if (series != null) { |
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101 dataset.addSeries(series); |
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102 } |
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103 } |
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104 catch (IllegalArgumentException iae) { |
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105 log.warn("unable to create discharge curve: " |
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106 + iae.getMessage()); |
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107 } |
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108 } |
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109 |
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110 String title = Resources.format(callMeta, I18N_CHART_TITLE, |
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111 DEFAULT_CHART_TITLE, gauge.getName()); |
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112 |
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113 String xAxis = Resources.getMsg(callMeta, I18N_CHART_X_AXIS_TITLE, |
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114 DEFAULT_X_AXIS_TITLE); |
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115 |
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116 String yAxis = Resources.format(callMeta, I18N_CHART_Y_AXIS_TITLE, |
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117 DEFAULT_Y_AXIS_TITLE); |
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118 |
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119 JFreeChart chart = ChartFactory.createXYLineChart(title, xAxis, yAxis, |
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120 null, PlotOrientation.VERTICAL, true, true, false); |
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121 |
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122 chart.setBackgroundPaint(Color.white); |
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123 |
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124 XYPlot plot = (XYPlot) chart.getPlot(); |
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125 plot.setDataset(0, dataset); |
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126 plot.setBackgroundPaint(Color.white); |
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127 plot.setDomainGridlinePaint(Color.gray); |
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128 plot.setRangeGridlinePaint(Color.gray); |
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129 plot.setDomainGridlinesVisible(true); |
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130 plot.setRangeGridlinesVisible(true); |
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131 |
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132 applyMainValueMarkers( |
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133 plot, |
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134 gauge, |
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135 callMeta); |
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136 |
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137 return chart; |
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138 } |
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139 |
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140 protected XYSeries createSeries(CallMeta callMeta, DischargeTable dt) |
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141 throws IllegalArgumentException { |
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142 |
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143 double[][] xy = null; |
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144 |
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145 xy = DischargeTables.loadDischargeTableValues(dt); |
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146 |
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147 XYSeries series = new XYSeries(createSeriesTitle(callMeta, dt), false); |
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148 for (int i = 0, n = xy[0].length; i < n; i++) { |
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149 series.add(xy[0][i], xy[1][i]); |
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150 } |
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151 |
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152 return series; |
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153 } |
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154 |
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155 |
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156 /** Add domain markers to plot that indicate mainvalues. */ |
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157 protected static void applyMainValueMarkers( |
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158 XYPlot plot, |
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159 Gauge gauge, |
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160 CallMeta meta |
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161 ) { |
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162 String river = gauge.getRiver().getName(); |
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163 double km = gauge.getStation().doubleValue(); |
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164 |
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165 // Get Gauge s mainvalues. |
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166 List<MainValue> mainValues = gauge.getMainValues(); |
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167 for (MainValue mainValue : mainValues) { |
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168 if (mainValue.getMainValue().getType().getName().equals("Q")) { |
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169 // Its a Q main value. |
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170 Marker m = FixingsKMChartService.createQSectorMarker( |
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171 mainValue.getValue().doubleValue(), |
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172 mainValue.getMainValue().getName()); |
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173 plot.addDomainMarker(m); |
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174 } |
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175 else if (mainValue.getMainValue().getType().getName().equals("W")) { |
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176 // Its a W main value. |
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177 Marker m = FixingsKMChartService.createQSectorMarker( |
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178 mainValue.getValue().doubleValue(), |
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179 mainValue.getMainValue().getName()); |
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180 plot.addRangeMarker(m); |
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181 } |
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182 } |
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183 } |
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184 |
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185 protected String createSeriesTitle(CallMeta callMeta, DischargeTable dt) |
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186 throws IllegalArgumentException { |
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187 TimeInterval timeInterval = dt.getTimeInterval(); |
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188 |
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189 if (timeInterval == null) { |
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190 return Resources.format(callMeta, DEFAULT_CHART_SERIES_TITLE); |
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191 } |
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192 |
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193 Date start = timeInterval.getStartTime(); |
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194 Date end = timeInterval.getStopTime(); |
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195 |
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196 if (start != null && end != null) { |
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197 return Resources.format(callMeta, I18N_CHART_SERIES_TITLE, |
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198 DEFAULT_CHART_SERIES_TITLE, start, end); |
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199 } |
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200 else if (start != null) { |
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201 return Resources.format(callMeta, I18N_CHART_SERIES_TITLE_MASTER, |
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202 DEFAULT_CHART_SERIES_TITLE, start); |
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203 } |
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204 else { |
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205 throw new IllegalArgumentException( |
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206 "Missing start date of DischargeTable " + dt.getId()); |
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207 } |
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208 } |
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209 |
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210 protected Gauge extractGauge(Document data) { |
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211 NodeList gauges = data.getElementsByTagName("gauge"); |
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212 |
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213 if (gauges.getLength() > 0) { |
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214 String name = ((Element) gauges.item(0)).getAttribute("name"); |
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215 |
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216 try { |
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217 long officialNumber = Long.valueOf(name); |
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218 return Gauge.getGaugeByOfficialNumber(officialNumber); |
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219 } |
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220 catch (NumberFormatException nfe) { |
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221 // it seems, that the client uses the name of the gauge instead |
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222 // of its official number |
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223 } |
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224 |
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225 if (name != null && name.length() > 0) { |
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226 return GaugesFactory.getGauge(name); |
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227 } |
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228 } |
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229 |
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230 return null; |
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231 } |
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232 |
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233 protected TimeInterval extractTimeInterval(Document data) { |
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234 NodeList timeranges = data.getElementsByTagName("timerange"); |
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235 |
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236 if (timeranges != null && timeranges.getLength() > 0) { |
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237 Element timerange = (Element) timeranges.item(0); |
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238 |
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239 String lower = timerange.getAttribute("lower"); |
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240 String upper = timerange.getAttribute("upper"); |
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241 |
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242 if (lower != null && upper != null) { |
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243 try { |
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244 Date d1 = DATE_FORMAT.parse(lower); |
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245 Date d2 = DATE_FORMAT.parse(upper); |
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246 |
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247 return new TimeInterval(d1, d2); |
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248 } |
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249 catch (ParseException pe) { |
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250 log.warn("Wrong time format: " + pe.getMessage()); |
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251 } |
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252 } |
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253 } |
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254 |
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255 return null; |
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256 } |
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257 |
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258 protected List<DischargeTable> getDischargeTables(Gauge gauge, |
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259 TimeInterval timerange) { |
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260 List<DischargeTable> all = gauge.getDischargeTables(); |
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261 Collections.sort(all); |
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262 |
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263 if (timerange == null) { |
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264 return all; |
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265 } |
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266 |
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267 List<DischargeTable> dts = new ArrayList<DischargeTable>(all.size()); |
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268 long startDate = timerange.getStartTime().getTime(); |
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269 long stopDate = timerange.getStopTime().getTime(); |
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270 |
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271 for (DischargeTable dt : all) { |
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272 TimeInterval tmp = dt.getTimeInterval(); |
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273 if (tmp == null) { |
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274 // this should never happen because all discharge tables should |
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275 // have a time interval set! |
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276 continue; |
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277 } |
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278 |
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279 Date start = tmp.getStartTime(); |
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280 Date stop = tmp.getStartTime(); |
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281 |
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282 if (start.getTime() > startDate && start.getTime() < stopDate) { |
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283 dts.add(dt); |
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284 continue; |
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285 } |
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286 else if (stop != null && stop.getTime() < stopDate |
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287 && stop.getTime() > startDate) { |
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288 dts.add(dt); |
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289 continue; |
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290 } |
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291 } |
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292 |
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293 return dts; |
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294 } |
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295 } |
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Doc and vim-magiv.
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296 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |