Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/services/BedloadKMChartService.java @ 5546:5b50247d4d99

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Use latin1 as encoding in the dgm importer to make it easier matching latin1 csv values
author Andre Heinecke <aheinecke@intevation.de>
date Thu, 04 Apr 2013 10:23:17 +0200
parents 58bdf95df5e4
children
rev   line source
3751
ae598cf50682 Added new services to render overview charts in minfo bed quality calculation
Raimund Renkert <raimund.renkert@intevation.de>
parents:
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1 package de.intevation.flys.artifacts.services;
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2
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3 import java.awt.Color;
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4 import java.awt.Dimension;
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5 import java.awt.Transparency;
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6 import java.awt.image.BufferedImage;
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7 import java.io.ByteArrayOutputStream;
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8 import java.io.IOException;
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9 import java.util.Date;
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10 import java.util.List;
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11
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12 import javax.imageio.ImageIO;
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13
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14 import org.apache.log4j.Logger;
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15 import org.jfree.chart.ChartFactory;
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16 import org.jfree.chart.JFreeChart;
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17 import org.jfree.chart.axis.DateAxis;
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18 import org.jfree.chart.plot.PlotOrientation;
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19 import org.jfree.chart.plot.XYPlot;
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20 import org.jfree.chart.renderer.xy.XYLineAndShapeRenderer;
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21 import org.jfree.data.xy.XYSeries;
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22 import org.jfree.data.xy.XYSeriesCollection;
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23 import org.w3c.dom.Document;
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24 import org.w3c.dom.Element;
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25 import org.w3c.dom.NodeList;
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26
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27 import de.intevation.artifactdatabase.DefaultService;
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28 import de.intevation.artifacts.CallMeta;
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29 import de.intevation.artifacts.GlobalContext;
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30 import de.intevation.artifacts.Service;
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31 import de.intevation.flys.artifacts.model.minfo.BedloadOverview;
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32 import de.intevation.flys.artifacts.model.minfo.BedloadOverviewFactory;
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33 import de.intevation.flys.artifacts.resources.Resources;
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34 import de.intevation.flys.backend.SedDBSessionHolder;
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35 import de.intevation.flys.utils.KMIndex;
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36
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37 public class BedloadKMChartService extends DefaultService {
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38
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39 private static final long serialVersionUID = 4156704841305086495L;
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40
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41 private static final Logger log =
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42 Logger.getLogger(BedloadKMChartService.class);
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43
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44 public static final int DEFAULT_WIDTH = 240;
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45 public static final int DEFAULT_HEIGHT = 180;
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46
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47 public static final String I18N_CHART_LABEL =
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48 "bedload.km.chart.label";
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49
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50 public static final String DEFAULT_CHART_LABEL =
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51 "Measuring Points";
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52
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53 public static final String I18N_CHART_TITLE =
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54 "bedload.km.chart.title";
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55
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56 public static final String DEFAULT_CHART_TITLE =
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57 "Measuring points";
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58
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59 public static final String I18N_KM_AXIS =
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60 "bedload.km.chart.km.axis";
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61
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62 public static final String DEFAULT_KM_AXIS =
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63 "km";
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64
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65 public static final String I18N_DATE_AXIS =
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66 "bedload.km.chart.date.axis";
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67
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68 public static final String DEFAULT_DATE_AXIS =
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69 "Date";
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70
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71 public static final String DEFAULT_FORMAT = "png";
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72
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73 // TODO: Load fancy image from resources.
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74 public static final byte [] EMPTY = {
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75 (byte)0x89, (byte)0x50, (byte)0x4e, (byte)0x47,
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76 (byte)0x0d, (byte)0x0a, (byte)0x1a, (byte)0x0a,
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77 (byte)0x00, (byte)0x00, (byte)0x00, (byte)0x0d,
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78 (byte)0x49, (byte)0x48, (byte)0x44, (byte)0x52,
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79 (byte)0x00, (byte)0x00, (byte)0x00, (byte)0x01,
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80 (byte)0x00, (byte)0x00, (byte)0x00, (byte)0x01,
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81 (byte)0x08, (byte)0x00, (byte)0x00, (byte)0x00,
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82 (byte)0x00, (byte)0x3a, (byte)0x7e, (byte)0x9b,
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83 (byte)0x55, (byte)0x00, (byte)0x00, (byte)0x00,
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84 (byte)0x01, (byte)0x73, (byte)0x52, (byte)0x47,
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85 (byte)0x42, (byte)0x00, (byte)0xae, (byte)0xce,
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86 (byte)0x1c, (byte)0xe9, (byte)0x00, (byte)0x00,
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87 (byte)0x00, (byte)0x09, (byte)0x70, (byte)0x48,
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88 (byte)0x59, (byte)0x73, (byte)0x00, (byte)0x00,
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89 (byte)0x0b, (byte)0x13, (byte)0x00, (byte)0x00,
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90 (byte)0x0b, (byte)0x13, (byte)0x01, (byte)0x00,
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91 (byte)0x9a, (byte)0x9c, (byte)0x18, (byte)0x00,
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92 (byte)0x00, (byte)0x00, (byte)0x07, (byte)0x74,
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93 (byte)0x49, (byte)0x4d, (byte)0x45, (byte)0x07,
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94 (byte)0xdc, (byte)0x04, (byte)0x04, (byte)0x10,
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95 (byte)0x30, (byte)0x15, (byte)0x7d, (byte)0x77,
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96 (byte)0x36, (byte)0x0b, (byte)0x00, (byte)0x00,
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97 (byte)0x00, (byte)0x08, (byte)0x74, (byte)0x45,
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98 (byte)0x58, (byte)0x74, (byte)0x43, (byte)0x6f,
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99 (byte)0x6d, (byte)0x6d, (byte)0x65, (byte)0x6e,
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100 (byte)0x74, (byte)0x00, (byte)0xf6, (byte)0xcc,
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101 (byte)0x96, (byte)0xbf, (byte)0x00, (byte)0x00,
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102 (byte)0x00, (byte)0x0a, (byte)0x49, (byte)0x44,
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Raimund Renkert <raimund.renkert@intevation.de>
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103 (byte)0x41, (byte)0x54, (byte)0x08, (byte)0xd7,
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Raimund Renkert <raimund.renkert@intevation.de>
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104 (byte)0x63, (byte)0xf8, (byte)0x0f, (byte)0x00,
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Raimund Renkert <raimund.renkert@intevation.de>
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105 (byte)0x01, (byte)0x01, (byte)0x01, (byte)0x00,
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Raimund Renkert <raimund.renkert@intevation.de>
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106 (byte)0x1b, (byte)0xb6, (byte)0xee, (byte)0x56,
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107 (byte)0x00, (byte)0x00, (byte)0x00, (byte)0x00,
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108 (byte)0x49, (byte)0x45, (byte)0x4e, (byte)0x44,
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109 (byte)0xae, (byte)0x42, (byte)0x60, (byte)0x82
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110 };
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111
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112 private static final Output empty() {
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113 return new Output(EMPTY, "image/png");
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114 }
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115
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116 @Override
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117 public Service.Output process(
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118 Document data,
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119 GlobalContext globalContext,
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120 CallMeta callMeta
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121 ) {
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122 log.debug("SQKMChartService.process");
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123
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124 SedDBSessionHolder.acquire();
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parents:
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125 try {
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126 return doProcess(data, globalContext, callMeta);
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127 }
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128 finally {
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129 SedDBSessionHolder.HOLDER.get().close();
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130 SedDBSessionHolder.release();
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131 }
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132 }
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133
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134 protected Service.Output doProcess(
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135 Document input,
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136 GlobalContext globalContext,
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137 CallMeta callMeta
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138 ) {
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139 String river = getRiverName(input);
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140 Dimension extent = getExtent(input);
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141 String format = getFormat(input);
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142
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143 if (river == null) {
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144 log.warn("River invalid.");
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145 return empty();
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146 }
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147
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148 BedloadOverview overview = BedloadOverviewFactory.getOverview(river);
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149
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150 if (overview == null) {
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151 log.warn("No overview found for river '" + river + "'");
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152 return empty();
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153 }
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154
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155 KMIndex<List<Date>> entries = overview.filter(BedloadOverview.ACCEPT);
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156
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157 JFreeChart chart = createChart(entries, river, callMeta);
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158
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159 return encode(chart, extent, format);
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160 }
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161
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162 protected static Output encode(
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163 JFreeChart chart,
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164 Dimension extent,
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165 String format
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166 ) {
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167 BufferedImage image = chart.createBufferedImage(
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168 extent.width, extent.height,
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169 Transparency.BITMASK,
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170 null);
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171
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172 ByteArrayOutputStream out = new ByteArrayOutputStream();
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diff changeset
173
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parents:
diff changeset
174 try {
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175 ImageIO.write(image, format, out);
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176 }
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177 catch (IOException ioe) {
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178 log.warn("writing image failed", ioe);
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179 return empty();
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180 }
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181
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182 return new Output(out.toByteArray(), "image/" + format);
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parents:
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183 }
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184
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185 protected static JFreeChart createChart(
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186 KMIndex<List<Date>> entries,
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187 String river,
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188 CallMeta callMeta
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parents:
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189 ) {
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diff changeset
190
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191 XYSeriesCollection dataset = new XYSeriesCollection();
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192 String key = Resources.format(
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parents:
diff changeset
193 callMeta, I18N_CHART_LABEL, DEFAULT_CHART_LABEL, river);
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diff changeset
194
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195 XYSeries series = new XYSeries(key);
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parents:
diff changeset
196 for (KMIndex.Entry<List<Date>> e: entries) {
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parents:
diff changeset
197 double km = e.getKm();
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198 List<Date> ds = e.getValue();
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parents:
diff changeset
199 for (Date d: ds) {
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parents:
diff changeset
200 series.add(km, d.getTime());
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parents:
diff changeset
201 }
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Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
202 }
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Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
203
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204 dataset.addSeries(series);
ae598cf50682 Added new services to render overview charts in minfo bed quality calculation
Raimund Renkert <raimund.renkert@intevation.de>
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diff changeset
205 String title = Resources.format(
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parents:
diff changeset
206 callMeta, I18N_CHART_TITLE, DEFAULT_CHART_TITLE, river);
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parents:
diff changeset
207
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parents:
diff changeset
208 String kmAxis = Resources.getMsg(
ae598cf50682 Added new services to render overview charts in minfo bed quality calculation
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parents:
diff changeset
209 callMeta, I18N_KM_AXIS, DEFAULT_KM_AXIS);
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parents:
diff changeset
210
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Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
211 String dateAxis = Resources.getMsg(
ae598cf50682 Added new services to render overview charts in minfo bed quality calculation
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parents:
diff changeset
212 callMeta, I18N_DATE_AXIS, DEFAULT_DATE_AXIS);
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parents:
diff changeset
213
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parents:
diff changeset
214 JFreeChart chart = ChartFactory.createXYLineChart(
ae598cf50682 Added new services to render overview charts in minfo bed quality calculation
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parents:
diff changeset
215 title,
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Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
216 kmAxis,
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parents:
diff changeset
217 dateAxis,
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parents:
diff changeset
218 null,
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Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
219 PlotOrientation.VERTICAL,
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Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
220 true,
ae598cf50682 Added new services to render overview charts in minfo bed quality calculation
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
221 true,
ae598cf50682 Added new services to render overview charts in minfo bed quality calculation
Raimund Renkert <raimund.renkert@intevation.de>
parents:
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222 false);
ae598cf50682 Added new services to render overview charts in minfo bed quality calculation
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parents:
diff changeset
223
ae598cf50682 Added new services to render overview charts in minfo bed quality calculation
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
224 XYPlot plot = (XYPlot)chart.getPlot();
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parents:
diff changeset
225
ae598cf50682 Added new services to render overview charts in minfo bed quality calculation
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
226 DateAxis dA = new DateAxis();
ae598cf50682 Added new services to render overview charts in minfo bed quality calculation
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
227 plot.setRangeAxis(dA);
ae598cf50682 Added new services to render overview charts in minfo bed quality calculation
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
228 plot.setDataset(0, dataset);
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parents:
diff changeset
229
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parents:
diff changeset
230 chart.setBackgroundPaint(Color.white);
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parents:
diff changeset
231 plot.setBackgroundPaint(Color.white);
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Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
232 plot.setDomainGridlinePaint(Color.gray);
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parents:
diff changeset
233 plot.setRangeGridlinePaint(Color.gray);
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Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
234 plot.setDomainGridlinesVisible(true);
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Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
235 plot.setRangeGridlinesVisible(true);
ae598cf50682 Added new services to render overview charts in minfo bed quality calculation
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
236 XYLineAndShapeRenderer renderer = (XYLineAndShapeRenderer) plot.getRenderer();
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parents:
diff changeset
237
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Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
238 renderer.setSeriesPaint(0, Color.gray);
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Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
239 renderer.setSeriesLinesVisible(0, false);
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parents:
diff changeset
240 renderer.setSeriesShapesVisible(0, true);
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parents:
diff changeset
241 renderer.setDrawOutlines(true);
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parents:
diff changeset
242 return chart;
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parents:
diff changeset
243 }
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parents:
diff changeset
244
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parents:
diff changeset
245
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parents:
diff changeset
246 protected static String getRiverName(Document input) {
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parents:
diff changeset
247 NodeList rivers = input.getElementsByTagName("river");
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parents:
diff changeset
248
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parents:
diff changeset
249 if (rivers.getLength() == 0) {
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parents:
diff changeset
250 return null;
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parents:
diff changeset
251 }
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parents:
diff changeset
252
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parents:
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253 String river = ((Element)rivers.item(0)).getAttribute("name");
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254
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255 return river.length() > 0 ? river : null;
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256 }
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257
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258 protected static Dimension getExtent(Document input) {
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259
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260 int width = DEFAULT_WIDTH;
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261 int height = DEFAULT_HEIGHT;
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262
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263 NodeList extents = input.getElementsByTagName("extent");
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264
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265 if (extents.getLength() > 0) {
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266 Element element = (Element)extents.item(0);
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267 String w = element.getAttribute("width");
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268 String h = element.getAttribute("height");
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269
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270 try {
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271 width = Math.max(1, Integer.parseInt(w));
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272 }
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273 catch (NumberFormatException nfe) {
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274 log.warn("width '" + w + "' is not a valid.");
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275 }
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276
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277 try {
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278 height = Math.max(1, Integer.parseInt(h));
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279 }
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280 catch (NumberFormatException nfe) {
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281 log.warn("height '" + h + "' is not a valid");
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282 }
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283 }
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284
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285 return new Dimension(width, height);
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286 }
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287
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288 protected static String getFormat(Document input) {
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289 String format = DEFAULT_FORMAT;
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290
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291 NodeList formats = input.getElementsByTagName("format");
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292
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293 if (formats.getLength() > 0) {
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294 String type = ((Element)formats.item(0)).getAttribute("type");
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295 if (type.length() > 0) {
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296 format = type;
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297 }
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298 }
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299
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300 return format;
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301 }
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302 }
http://dive4elements.wald.intevation.org