Mercurial > dive4elements > river
annotate artifacts/src/main/java/org/dive4elements/river/artifacts/services/DischargeTablesOverview.java @ 5994:af13ceeba52a
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author | Sascha L. Teichmann <teichmann@intevation.de> |
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date | Sun, 12 May 2013 18:13:50 +0200 |
parents | 4897a58c8746 |
children | 20a32dbdbb59 |
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.hibernate.Session; |
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22 import org.jfree.chart.ChartFactory; |
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23 import org.jfree.chart.JFreeChart; |
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24 import org.jfree.chart.plot.Marker; |
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25 import org.jfree.chart.plot.PlotOrientation; |
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26 import org.jfree.chart.plot.XYPlot; |
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27 import org.jfree.data.xy.XYSeries; |
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28 import org.jfree.data.xy.XYSeriesCollection; |
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29 import org.w3c.dom.Document; |
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30 import org.w3c.dom.Element; |
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31 import org.w3c.dom.NodeList; |
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32 |
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33 import org.dive4elements.artifacts.CallMeta; |
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34 import org.dive4elements.artifacts.GlobalContext; |
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35 import org.dive4elements.river.artifacts.model.DischargeTables; |
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36 import org.dive4elements.river.artifacts.model.GaugesFactory; |
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37 import org.dive4elements.river.artifacts.resources.Resources; |
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38 import org.dive4elements.river.backend.SessionHolder; |
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39 import org.dive4elements.river.model.DischargeTable; |
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40 import org.dive4elements.river.model.Gauge; |
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41 import org.dive4elements.river.model.MainValue; |
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42 import org.dive4elements.river.model.TimeInterval; |
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43 |
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44 |
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45 /** Generate Discharge Table chart. */ |
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46 public class DischargeTablesOverview extends AbstractChartService { |
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47 |
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48 private static final Logger log = Logger |
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49 .getLogger(DischargeTablesOverview.class); |
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50 |
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51 private static final long serialVersionUID = 1L; |
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52 |
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53 public static final String I18N_CHART_TITLE = "gauge.discharge.service.chart.title"; |
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54 public static final String DEFAULT_CHART_TITLE = "Pegel: XXX"; |
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55 |
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56 public static final String I18N_CHART_X_AXIS_TITLE = "gauge.discharge.service.chart.x.title"; |
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57 public static final String DEFAULT_X_AXIS_TITLE = "Q [m^3/s]"; |
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58 |
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59 public static final String I18N_CHART_Y_AXIS_TITLE = "gauge.discharge.service.chart.y.title"; |
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60 public static final String DEFAULT_Y_AXIS_TITLE = "W [cm]"; |
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61 |
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62 public static final String I18N_CHART_SERIES_TITLE = "gauge.discharge.service.chart.series.title"; |
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63 public static final String DEFAULT_CHART_SERIES_TITLE = "Abflusskurve"; |
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64 |
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65 public static final String I18N_CHART_SERIES_TITLE_MASTER = "gauge.discharge.service.chart.series.title.master"; |
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66 public static final String DEFAULT_CHART_SERIES_TITLE_MASTER = "Aktuelle Abflusskurve"; |
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67 |
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68 public static final DateFormat DATE_FORMAT = DateFormat.getDateInstance( |
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69 DateFormat.SHORT, Locale.GERMANY); |
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70 |
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71 private Session session; |
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72 |
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73 @Override |
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74 protected void init() { |
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75 session = SessionHolder.acquire(); |
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76 } |
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77 |
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78 @Override |
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79 protected void finish() { |
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80 if (session != null) { |
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81 session.close(); |
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82 SessionHolder.release(); |
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83 } |
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84 } |
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85 |
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86 protected JFreeChart createChart(Document data, |
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87 GlobalContext globalContext, CallMeta callMeta) { |
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88 |
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89 Gauge gauge = extractGauge(data); |
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90 |
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91 if (gauge == null) { |
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92 log.warn("Could not determine Gauge from request!"); |
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93 return null; |
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94 } |
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95 |
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96 log.info("create discharge chart for gauge '" + gauge.getName() + "'"); |
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97 TimeInterval timerange = extractTimeInterval(data); |
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98 |
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99 List<DischargeTable> dts = getDischargeTables(gauge, timerange); |
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100 XYSeriesCollection dataset = new XYSeriesCollection(); |
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101 |
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102 for (DischargeTable dt : dts) { |
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103 try { |
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104 XYSeries series = createSeries(callMeta, dt); |
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105 if (series != null) { |
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106 dataset.addSeries(series); |
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107 } |
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108 } |
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109 catch (IllegalArgumentException iae) { |
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110 log.warn("unable to create discharge curve: " |
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111 + iae.getMessage()); |
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112 } |
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113 } |
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114 |
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115 String title = Resources.format(callMeta, I18N_CHART_TITLE, |
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116 DEFAULT_CHART_TITLE, gauge.getName()); |
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117 |
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118 String xAxis = Resources.getMsg(callMeta, I18N_CHART_X_AXIS_TITLE, |
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119 DEFAULT_X_AXIS_TITLE); |
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120 |
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121 String yAxis = Resources.format(callMeta, I18N_CHART_Y_AXIS_TITLE, |
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122 DEFAULT_Y_AXIS_TITLE); |
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123 |
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124 JFreeChart chart = ChartFactory.createXYLineChart(title, xAxis, yAxis, |
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125 null, PlotOrientation.VERTICAL, true, true, false); |
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126 |
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127 chart.setBackgroundPaint(Color.white); |
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128 |
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129 XYPlot plot = (XYPlot) chart.getPlot(); |
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130 plot.setDataset(0, dataset); |
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131 plot.setBackgroundPaint(Color.white); |
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132 plot.setDomainGridlinePaint(Color.gray); |
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133 plot.setRangeGridlinePaint(Color.gray); |
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134 plot.setDomainGridlinesVisible(true); |
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135 plot.setRangeGridlinesVisible(true); |
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136 |
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137 applyMainValueMarkers( |
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138 plot, |
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139 gauge, |
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140 callMeta); |
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141 |
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142 return chart; |
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143 } |
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144 |
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145 protected XYSeries createSeries(CallMeta callMeta, DischargeTable dt) |
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146 throws IllegalArgumentException { |
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147 |
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148 double[][] xy = null; |
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149 |
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150 if (dt.getKind() == DischargeTables.MASTER) { |
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151 xy = DischargeTables.loadDischargeTableValues(dt, |
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152 DischargeTables.MASTER_SCALE); |
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153 } |
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154 else { |
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155 xy = DischargeTables.loadDischargeTableValues(dt, |
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156 DischargeTables.HISTORICAL_SCALE); |
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157 } |
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158 |
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159 XYSeries series = new XYSeries(createSeriesTitle(callMeta, dt), false); |
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160 for (int i = 0, n = xy[0].length; i < n; i++) { |
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161 series.add(xy[0][i], xy[1][i]); |
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162 } |
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163 |
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164 return series; |
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165 } |
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166 |
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167 |
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168 /** Add domain markers to plot that indicate mainvalues. */ |
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169 protected static void applyMainValueMarkers( |
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170 XYPlot plot, |
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171 Gauge gauge, |
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172 CallMeta meta |
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173 ) { |
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174 String river = gauge.getRiver().getName(); |
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175 double km = gauge.getStation().doubleValue(); |
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176 |
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177 // Get Gauge s mainvalues. |
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178 List<MainValue> mainValues = gauge.getMainValues(); |
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179 for (MainValue mainValue : mainValues) { |
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180 if (mainValue.getMainValue().getType().getName().equals("Q")) { |
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181 // Its a Q main value. |
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182 Marker m = FixingsKMChartService.createQSectorMarker( |
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183 mainValue.getValue().doubleValue(), |
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184 mainValue.getMainValue().getName()); |
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185 plot.addDomainMarker(m); |
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186 } |
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187 else if (mainValue.getMainValue().getType().getName().equals("W")) { |
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188 // Its a W main value. |
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189 Marker m = FixingsKMChartService.createQSectorMarker( |
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190 mainValue.getValue().doubleValue(), |
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191 mainValue.getMainValue().getName()); |
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192 plot.addRangeMarker(m); |
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193 } |
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194 } |
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195 } |
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196 |
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197 protected String createSeriesTitle(CallMeta callMeta, DischargeTable dt) |
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198 throws IllegalArgumentException { |
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199 TimeInterval timeInterval = dt.getTimeInterval(); |
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200 |
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201 if (timeInterval == null) { |
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202 return Resources.format(callMeta, DEFAULT_CHART_SERIES_TITLE); |
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203 } |
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204 |
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205 Date start = timeInterval.getStartTime(); |
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206 Date end = timeInterval.getStopTime(); |
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207 |
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208 if (start != null && end != null) { |
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209 return Resources.format(callMeta, I18N_CHART_SERIES_TITLE, |
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210 DEFAULT_CHART_SERIES_TITLE, start, end); |
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211 } |
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212 else if (start != null) { |
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213 return Resources.format(callMeta, I18N_CHART_SERIES_TITLE_MASTER, |
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214 DEFAULT_CHART_SERIES_TITLE, start); |
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215 } |
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216 else { |
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217 throw new IllegalArgumentException( |
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218 "Missing start date of DischargeTable " + dt.getId()); |
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219 } |
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220 } |
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221 |
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222 protected Gauge extractGauge(Document data) { |
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223 NodeList gauges = data.getElementsByTagName("gauge"); |
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224 |
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225 if (gauges.getLength() > 0) { |
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226 String name = ((Element) gauges.item(0)).getAttribute("name"); |
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227 |
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228 try { |
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229 long officialNumber = Long.valueOf(name); |
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230 return Gauge.getGaugeByOfficialNumber(officialNumber); |
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231 } |
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232 catch (NumberFormatException nfe) { |
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233 // it seems, that the client uses the name of the gauge instead |
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234 // of its official number |
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235 } |
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236 |
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237 if (name != null && name.length() > 0) { |
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238 return GaugesFactory.getGauge(name); |
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239 } |
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240 } |
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241 |
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242 return null; |
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243 } |
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244 |
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245 protected TimeInterval extractTimeInterval(Document data) { |
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246 NodeList timeranges = data.getElementsByTagName("timerange"); |
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247 |
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248 if (timeranges != null && timeranges.getLength() > 0) { |
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249 Element timerange = (Element) timeranges.item(0); |
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250 |
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251 String lower = timerange.getAttribute("lower"); |
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252 String upper = timerange.getAttribute("upper"); |
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253 |
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254 if (lower != null && upper != null) { |
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255 try { |
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256 Date d1 = DATE_FORMAT.parse(lower); |
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257 Date d2 = DATE_FORMAT.parse(upper); |
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258 |
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259 return new TimeInterval(d1, d2); |
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260 } |
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261 catch (ParseException pe) { |
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262 log.warn("Wrong time format: " + pe.getMessage()); |
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263 } |
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264 } |
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265 } |
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266 |
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267 return null; |
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268 } |
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269 |
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270 protected List<DischargeTable> getDischargeTables(Gauge gauge, |
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271 TimeInterval timerange) { |
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272 List<DischargeTable> all = gauge.getDischargeTables(); |
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273 Collections.sort(all); |
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274 |
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275 if (timerange == null) { |
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276 return all; |
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277 } |
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278 |
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279 List<DischargeTable> dts = new ArrayList<DischargeTable>(all.size()); |
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280 long startDate = timerange.getStartTime().getTime(); |
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281 long stopDate = timerange.getStopTime().getTime(); |
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282 |
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283 for (DischargeTable dt : all) { |
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284 TimeInterval tmp = dt.getTimeInterval(); |
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285 if (tmp == null) { |
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286 // this should never happen because all discharge tables should |
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287 // have a time interval set! |
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288 continue; |
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289 } |
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290 |
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291 Date start = tmp.getStartTime(); |
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292 Date stop = tmp.getStartTime(); |
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293 |
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294 if (start.getTime() > startDate && start.getTime() < stopDate) { |
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295 dts.add(dt); |
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296 continue; |
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297 } |
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298 else if (stop != null && stop.getTime() < stopDate |
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299 && stop.getTime() > startDate) { |
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300 dts.add(dt); |
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301 continue; |
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302 } |
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303 } |
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304 |
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305 return dts; |
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306 } |
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307 } |
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Doc and vim-magiv.
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308 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |