Mercurial > dive4elements > river
annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/services/FixingsKMChartService.java @ 4044:7eebd9e58641
Add chart legend entries for interpolated series (#838).
author | Christian Lins <christian.lins@intevation.de> |
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date | Fri, 05 Oct 2012 23:21:18 +0200 |
parents | e727e3ebdf85 |
children | 3f8e5dd2935c |
rev | line source |
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1 package de.intevation.flys.artifacts.services; |
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2 |
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3 import de.intevation.artifactdatabase.DefaultService; |
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4 |
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5 import de.intevation.artifacts.CallMeta; |
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6 import de.intevation.artifacts.GlobalContext; |
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7 import de.intevation.artifacts.Service; |
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8 |
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9 import de.intevation.flys.artifacts.model.FixingsColumn; |
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10 import de.intevation.flys.artifacts.model.FixingsColumnFactory; |
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11 import de.intevation.flys.artifacts.model.FixingsFilterBuilder; |
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12 |
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13 import de.intevation.flys.artifacts.model.FixingsOverview.Fixing; |
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14 |
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15 import de.intevation.flys.artifacts.model.FixingsOverview; |
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16 import de.intevation.flys.artifacts.model.FixingsOverviewFactory; |
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17 import de.intevation.flys.artifacts.model.GaugeFinder; |
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18 import de.intevation.flys.artifacts.model.GaugeFinderFactory; |
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19 import de.intevation.flys.artifacts.model.GaugeRange; |
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20 |
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21 import de.intevation.flys.artifacts.model.fixings.QWI; |
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22 |
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23 import de.intevation.flys.artifacts.resources.Resources; |
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24 |
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25 import de.intevation.flys.backend.SessionHolder; |
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26 |
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27 import de.intevation.flys.jfree.ShapeRenderer; |
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28 |
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29 import de.intevation.flys.utils.Formatter; |
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30 import de.intevation.flys.utils.Pair; |
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31 |
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32 import java.awt.BasicStroke; |
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33 import java.awt.Color; |
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34 import java.awt.Dimension; |
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35 import java.awt.Transparency; |
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36 |
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37 import java.awt.geom.Rectangle2D; |
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38 |
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39 import java.awt.image.BufferedImage; |
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40 |
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41 import java.io.ByteArrayOutputStream; |
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42 import java.io.IOException; |
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43 |
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44 import java.util.ArrayList; |
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45 import java.util.List; |
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46 |
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47 import javax.imageio.ImageIO; |
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48 |
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49 import org.apache.log4j.Logger; |
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50 |
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51 import org.jfree.chart.ChartFactory; |
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52 import org.jfree.chart.JFreeChart; |
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53 import org.jfree.chart.LegendItemCollection; |
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54 |
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55 import org.jfree.chart.axis.NumberAxis; |
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56 |
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57 import org.jfree.chart.plot.Marker; |
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58 import org.jfree.chart.plot.PlotOrientation; |
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59 import org.jfree.chart.plot.ValueMarker; |
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60 import org.jfree.chart.plot.XYPlot; |
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61 |
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62 import org.jfree.data.Range; |
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63 |
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64 import org.jfree.ui.RectangleAnchor; |
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65 import org.jfree.ui.TextAnchor; |
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66 |
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67 import org.w3c.dom.Document; |
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68 import org.w3c.dom.Element; |
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69 import org.w3c.dom.NodeList; |
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70 |
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Cosmetics.
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71 |
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72 /** Serve chart of Fixings at certain km. */ |
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73 public class FixingsKMChartService |
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74 extends DefaultService |
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75 { |
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76 private static final Logger log = |
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77 Logger.getLogger(FixingsKMChartService.class); |
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78 |
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79 public static final int DEFAULT_WIDTH = 240; |
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80 public static final int DEFAULT_HEIGHT = 180; |
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81 |
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82 public static final String [] I18N_Q_SECTOR_BOARDERS = { |
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83 "fix.km.chart.q.sector.border0", |
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84 "fix.km.chart.q.sector.border1", |
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85 "fix.km.chart.q.sector.border2" |
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86 }; |
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87 |
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88 public static final String [] DEFAULT_Q_SECTOR_BORDERS = { |
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89 "(MNQ + MQ)/2", |
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90 "(MQ + MHQ)/2", |
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91 "HQ5" |
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92 }; |
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93 |
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94 public static final String I18N_CHART_LABEL_DATE = |
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95 "fix.km.chart.label.date"; |
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96 |
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97 public static final String DEFAULT_CHART_LABEL_DATE = |
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98 "yyyy/MM/dd"; |
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99 |
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100 public static final String I18N_CHART_TITLE = |
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101 "fix.km.chart.title"; |
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102 |
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103 public static final String DEFAULT_CHART_TITLE = |
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104 "Fixings {0} km {1,number,#.###}"; |
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105 |
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106 public static final String I18N_Q_AXIS = |
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107 "fix.km.chart.q.axis"; |
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108 |
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109 public static final String DEFAULT_Q_AXIS = |
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110 "Q [m\u00b3/s]"; |
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111 |
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112 public static final String I18N_W_AXIS = |
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113 "fix.km.chart.w.axis"; |
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114 |
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115 public static final String DEFAULT_W_AXIS = |
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116 "W [NN + m]"; |
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117 |
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118 public static final String I18N_MEASURED = |
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119 "fix.km.chart.measured"; |
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120 |
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121 public static final String DEFAULT_MEASURED = |
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122 "measured"; |
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123 |
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124 public static final String I18N_INTERPOLATED = |
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125 "fix.km.chart.interpolated"; |
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126 |
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127 public static final String DEFAULT_INTERPOLATED = |
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128 "interpolated"; |
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129 |
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130 public static final String DEFAULT_FORMAT = "png"; |
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131 |
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132 // TODO: Load fancy image from resources. |
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133 public static final byte [] EMPTY = { |
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134 (byte)0x89, (byte)0x50, (byte)0x4e, (byte)0x47, |
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135 (byte)0x0d, (byte)0x0a, (byte)0x1a, (byte)0x0a, |
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136 (byte)0x00, (byte)0x00, (byte)0x00, (byte)0x0d, |
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137 (byte)0x49, (byte)0x48, (byte)0x44, (byte)0x52, |
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138 (byte)0x00, (byte)0x00, (byte)0x00, (byte)0x01, |
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139 (byte)0x00, (byte)0x00, (byte)0x00, (byte)0x01, |
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140 (byte)0x08, (byte)0x00, (byte)0x00, (byte)0x00, |
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141 (byte)0x00, (byte)0x3a, (byte)0x7e, (byte)0x9b, |
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142 (byte)0x55, (byte)0x00, (byte)0x00, (byte)0x00, |
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143 (byte)0x01, (byte)0x73, (byte)0x52, (byte)0x47, |
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144 (byte)0x42, (byte)0x00, (byte)0xae, (byte)0xce, |
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145 (byte)0x1c, (byte)0xe9, (byte)0x00, (byte)0x00, |
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146 (byte)0x00, (byte)0x09, (byte)0x70, (byte)0x48, |
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147 (byte)0x59, (byte)0x73, (byte)0x00, (byte)0x00, |
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148 (byte)0x0b, (byte)0x13, (byte)0x00, (byte)0x00, |
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149 (byte)0x0b, (byte)0x13, (byte)0x01, (byte)0x00, |
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150 (byte)0x9a, (byte)0x9c, (byte)0x18, (byte)0x00, |
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151 (byte)0x00, (byte)0x00, (byte)0x07, (byte)0x74, |
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152 (byte)0x49, (byte)0x4d, (byte)0x45, (byte)0x07, |
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153 (byte)0xdc, (byte)0x04, (byte)0x04, (byte)0x10, |
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154 (byte)0x30, (byte)0x15, (byte)0x7d, (byte)0x77, |
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155 (byte)0x36, (byte)0x0b, (byte)0x00, (byte)0x00, |
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156 (byte)0x00, (byte)0x08, (byte)0x74, (byte)0x45, |
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157 (byte)0x58, (byte)0x74, (byte)0x43, (byte)0x6f, |
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158 (byte)0x6d, (byte)0x6d, (byte)0x65, (byte)0x6e, |
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159 (byte)0x74, (byte)0x00, (byte)0xf6, (byte)0xcc, |
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160 (byte)0x96, (byte)0xbf, (byte)0x00, (byte)0x00, |
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161 (byte)0x00, (byte)0x0a, (byte)0x49, (byte)0x44, |
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162 (byte)0x41, (byte)0x54, (byte)0x08, (byte)0xd7, |
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163 (byte)0x63, (byte)0xf8, (byte)0x0f, (byte)0x00, |
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164 (byte)0x01, (byte)0x01, (byte)0x01, (byte)0x00, |
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165 (byte)0x1b, (byte)0xb6, (byte)0xee, (byte)0x56, |
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166 (byte)0x00, (byte)0x00, (byte)0x00, (byte)0x00, |
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167 (byte)0x49, (byte)0x45, (byte)0x4e, (byte)0x44, |
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168 (byte)0xae, (byte)0x42, (byte)0x60, (byte)0x82 |
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169 }; |
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170 |
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171 private static final Output empty() { |
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172 return new Output(EMPTY, "image/png"); |
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173 } |
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174 |
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175 @Override |
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176 public Service.Output process( |
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177 Document data, |
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178 GlobalContext globalContext, |
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179 CallMeta callMeta |
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180 ) { |
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181 log.debug("FixingsKMChartService.process"); |
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182 |
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183 SessionHolder.acquire(); |
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184 try { |
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185 return doProcess(data, globalContext, callMeta); |
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186 } |
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187 finally { |
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188 SessionHolder.HOLDER.get().close(); |
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189 SessionHolder.release(); |
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190 } |
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191 } |
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192 |
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193 protected Service.Output doProcess( |
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194 Document input, |
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195 GlobalContext globalContext, |
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196 CallMeta callMeta |
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197 ) { |
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198 String river = getRiverName(input); |
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199 Double km = getKM(input); |
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200 Dimension extent = getExtent(input); |
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201 String format = getFormat(input); |
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202 |
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203 if (river == null || km == null) { |
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204 log.warn("River and/or km invalid."); |
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205 return empty(); |
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206 } |
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207 |
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208 FixingsOverview overview = FixingsOverviewFactory.getOverview(river); |
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209 |
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210 if (overview == null) { |
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211 log.warn("No overview found for river '" + river + "'"); |
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212 return empty(); |
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213 } |
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214 |
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215 FixingsFilterBuilder ffb = new FixingsFilterBuilder(input); |
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216 |
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217 List<Fixing.Column> columns = overview.filter( |
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218 ffb.getRange(), |
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219 ffb.getFilter()); |
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220 |
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221 List<Pair<Fixing.Column, FixingsColumn>> cols = |
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222 new ArrayList<Pair<Fixing.Column, FixingsColumn>>(); |
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223 |
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224 for (Fixing.Column col: columns) { |
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225 FixingsColumn data = |
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226 FixingsColumnFactory.INSTANCE.getColumnData(col); |
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227 if (data != null) { |
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228 cols.add(new Pair<Fixing.Column, FixingsColumn>(col, data)); |
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229 } |
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230 } |
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231 |
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232 JFreeChart chart = createChart(cols, river, km, callMeta); |
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233 |
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234 return encode(chart, extent, format); |
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235 } |
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236 |
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237 protected static Output encode( |
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238 JFreeChart chart, |
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239 Dimension extent, |
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240 String format |
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241 ) { |
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242 BufferedImage image = chart.createBufferedImage( |
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243 extent.width, extent.height, |
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244 Transparency.BITMASK, |
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245 null); |
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246 |
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247 ByteArrayOutputStream out = new ByteArrayOutputStream(); |
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248 |
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249 try { |
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250 ImageIO.write(image, format, out); |
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251 } |
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252 catch (IOException ioe) { |
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253 log.warn("writing image failed", ioe); |
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254 return empty(); |
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255 } |
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256 |
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257 return new Output(out.toByteArray(), "image/" + format); |
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258 } |
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259 |
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260 protected static JFreeChart createChart( |
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261 List<Pair<Fixing.Column, FixingsColumn>> cols, |
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262 String river, |
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263 double km, |
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264 CallMeta callMeta |
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265 ) { |
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266 String labelFormat = Resources.getMsg( |
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267 callMeta, I18N_CHART_LABEL_DATE, DEFAULT_CHART_LABEL_DATE); |
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268 |
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269 QWSeriesCollection.LabelGenerator lg = |
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270 new QWSeriesCollection.DateFormatLabelGenerator(labelFormat); |
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271 |
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272 QWSeriesCollection dataset = new QWSeriesCollection(lg); |
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273 |
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274 double [] w = new double[1]; |
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275 for (Pair<Fixing.Column, FixingsColumn> col: cols) { |
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276 boolean interpolated = !col.getB().getW(km, w); |
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277 double q = col.getB().getQ(km); |
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278 if (!Double.isNaN(w[0]) && !Double.isNaN(q)) { |
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279 QWI qw = new QWI( |
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280 q, w[0], |
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281 col.getA().getDescription(), |
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282 col.getA().getStartTime(), |
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283 interpolated, 0); |
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284 dataset.add(qw); |
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285 } |
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286 } |
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287 |
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288 String title = Resources.format( |
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289 callMeta, I18N_CHART_TITLE, DEFAULT_CHART_TITLE, river, km); |
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290 |
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291 String qAxis = Resources.getMsg( |
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292 callMeta, I18N_Q_AXIS, DEFAULT_Q_AXIS); |
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293 |
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294 String wAxis = Resources.getMsg( |
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295 callMeta, I18N_W_AXIS, DEFAULT_W_AXIS); |
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296 |
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297 JFreeChart chart = ChartFactory.createXYLineChart( |
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298 title, |
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299 qAxis, |
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300 wAxis, |
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301 null, |
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302 PlotOrientation.VERTICAL, |
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303 true, |
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304 true, |
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305 false); |
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306 |
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307 XYPlot plot = (XYPlot)chart.getPlot(); |
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308 |
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309 NumberAxis qA = (NumberAxis)plot.getDomainAxis(); |
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310 qA.setNumberFormatOverride(Formatter.getWaterlevelQ(callMeta)); |
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311 |
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312 NumberAxis wA = (NumberAxis)plot.getRangeAxis(); |
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313 wA.setNumberFormatOverride(Formatter.getWaterlevelW(callMeta)); |
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314 |
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315 plot.setRenderer(0, dataset.createRenderer()); |
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316 plot.setDataset(0, dataset); |
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317 |
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318 Rectangle2D area = dataset.getArea(); |
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319 |
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320 if (area != null) { |
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321 double height = area.getHeight(); |
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322 double wInset = Math.max(height, 0.01) * 0.25d; |
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323 |
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324 wA.setAutoRangeIncludesZero(false); |
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325 wA.setRange(new Range( |
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326 area.getMinY() - wInset, |
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327 area.getMaxY() + wInset)); |
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328 } |
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329 |
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330 final String measuredS = Resources.getMsg( |
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331 callMeta, I18N_MEASURED, DEFAULT_MEASURED); |
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332 |
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333 final String interpolatedS = Resources.getMsg( |
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334 callMeta, I18N_INTERPOLATED, DEFAULT_INTERPOLATED); |
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335 |
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336 LegendItemCollection lic = plot.getLegendItems(); |
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337 dataset.addLegendItems(lic, new ShapeRenderer.LabelGenerator() { |
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338 @Override |
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339 public String createLabel(ShapeRenderer.Entry entry) { |
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340 return entry.getFilled() ? measuredS : interpolatedS; |
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341 } |
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342 }); |
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343 plot.setFixedLegendItems(lic); |
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344 |
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345 applyQSectorMarkers(plot, river, km, callMeta); |
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346 |
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347 chart.setBackgroundPaint(Color.white); |
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348 plot.setBackgroundPaint(Color.white); |
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349 plot.setDomainGridlinePaint(Color.gray); |
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350 plot.setRangeGridlinePaint(Color.gray); |
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351 plot.setDomainGridlinesVisible(true); |
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352 plot.setRangeGridlinesVisible(true); |
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353 |
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354 return chart; |
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355 } |
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356 |
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357 /** Add domain markers to plot that indicate Q-sectors. */ |
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358 protected static void applyQSectorMarkers( |
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359 XYPlot plot, |
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360 String river, |
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361 double km, |
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362 CallMeta meta |
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363 ) { |
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364 GaugeFinderFactory ggf = GaugeFinderFactory.getInstance(); |
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365 GaugeFinder gf = ggf.getGaugeFinder(river); |
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366 |
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367 if (gf == null) { |
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368 log.warn("No gauge finder found for river '" + river + "'"); |
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369 return; |
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370 } |
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371 |
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372 GaugeRange gr = gf.find(km); |
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373 if (gr == null) { |
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374 log.debug("No gauge range found for km " |
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375 + km + " on river " + river + "."); |
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376 return; |
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377 } |
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378 |
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379 if (log.isDebugEnabled()) { |
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380 log.debug(gr); |
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381 } |
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382 |
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383 for (int i = 0; i < I18N_Q_SECTOR_BOARDERS.length; ++i) { |
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384 String key = I18N_Q_SECTOR_BOARDERS[i]; |
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385 String def = DEFAULT_Q_SECTOR_BORDERS[i]; |
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386 String label = Resources.getMsg(meta, key, def); |
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387 |
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388 Marker m = createQSectorMarker( |
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389 gr.getSectorBorder(i), |
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390 label); |
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391 |
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392 if (m != null) { |
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393 plot.addDomainMarker(m); |
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394 } |
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395 } |
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396 } |
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397 |
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398 protected static Marker createQSectorMarker(double value, String label) { |
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399 if (Double.isNaN(value)) { |
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400 return null; |
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401 } |
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402 Marker m = new ValueMarker(value); |
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403 m.setPaint(Color.black); |
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404 m.setStroke(new BasicStroke()); |
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405 m.setLabel(label); |
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406 m.setLabelAnchor(RectangleAnchor.TOP_LEFT); |
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407 m.setLabelTextAnchor(TextAnchor.TOP_LEFT); |
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408 return m; |
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409 } |
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410 |
2620
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411 protected static String getRiverName(Document input) { |
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412 NodeList rivers = input.getElementsByTagName("river"); |
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413 |
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414 if (rivers.getLength() == 0) { |
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415 return null; |
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416 } |
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417 |
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418 String river = ((Element)rivers.item(0)).getAttribute("name"); |
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419 |
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420 return river.length() > 0 ? river : null; |
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FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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421 } |
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422 |
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423 protected static Double getKM(Document input) { |
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424 NodeList kms = input.getElementsByTagName("km"); |
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425 |
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426 if (kms.getLength() == 0) { |
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427 return null; |
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428 } |
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429 |
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FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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430 String km = ((Element)kms.item(0)).getAttribute("value"); |
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431 |
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432 try { |
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433 return Double.valueOf(km); |
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434 } |
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435 catch (NumberFormatException nfe) { |
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436 log.warn("Km '" + km + " is not a valid number."); |
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437 return null; |
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438 } |
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439 } |
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440 |
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441 protected static Dimension getExtent(Document input) { |
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442 |
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443 int width = DEFAULT_WIDTH; |
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444 int height = DEFAULT_HEIGHT; |
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445 |
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446 NodeList extents = input.getElementsByTagName("extent"); |
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447 |
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448 if (extents.getLength() > 0) { |
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449 Element element = (Element)extents.item(0); |
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450 String w = element.getAttribute("width"); |
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FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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451 String h = element.getAttribute("height"); |
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452 |
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FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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453 try { |
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454 width = Math.max(1, Integer.parseInt(w)); |
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FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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455 } |
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FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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456 catch (NumberFormatException nfe) { |
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457 log.warn("width '" + w + "' is not a valid."); |
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FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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458 } |
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FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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459 |
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FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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460 try { |
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461 height = Math.max(1, Integer.parseInt(h)); |
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FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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462 } |
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FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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463 catch (NumberFormatException nfe) { |
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464 log.warn("height '" + h + "' is not a valid"); |
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FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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465 } |
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FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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466 } |
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467 |
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FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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468 return new Dimension(width, height); |
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FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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469 } |
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FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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470 |
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FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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471 protected static String getFormat(Document input) { |
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472 String format = DEFAULT_FORMAT; |
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473 |
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FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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474 NodeList formats = input.getElementsByTagName("format"); |
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FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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475 |
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FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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476 if (formats.getLength() > 0) { |
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477 String type = ((Element)formats.item(0)).getAttribute("type"); |
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478 if (type.length() > 0) { |
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479 format = type; |
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480 } |
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FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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481 } |
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FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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482 |
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FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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483 return format; |
2614
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Added service to generate a chart of fixings for given river and km applied
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484 } |
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Added service to generate a chart of fixings for given river and km applied
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485 } |
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Added service to generate a chart of fixings for given river and km applied
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486 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |