Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/exports/DischargeCurveGenerator.java @ 299:8940b0885865

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Added a DischargeCurveGenerator that creates discharge curves. flys-artifacts/trunk@1648 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Wed, 06 Apr 2011 09:56:38 +0000
parents
children 635af5381a4d
rev   line source
299
8940b0885865 Added a DischargeCurveGenerator that creates discharge curves.
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1 package de.intevation.flys.exports;
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2
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3 import java.awt.Color;
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4 import java.io.IOException;
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5 import java.io.OutputStream;
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6 import java.util.ArrayList;
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7 import java.util.List;
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8 import java.util.Map;
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9
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10 import org.apache.log4j.Logger;
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11
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12 import org.w3c.dom.Document;
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13
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14 import org.jfree.data.xy.DefaultXYDataset;
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15
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16 import org.jfree.chart.ChartFactory;
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17 import org.jfree.chart.JFreeChart;
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18 import org.jfree.chart.plot.PlotOrientation;
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19
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20 import de.intevation.artifacts.Artifact;
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21 import de.intevation.artifacts.CallContext;
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22
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23 import de.intevation.flys.model.Gauge;
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24
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25 import de.intevation.flys.artifacts.FLYSArtifact;
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26 import de.intevation.flys.artifacts.model.DischargeTables;
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27 import de.intevation.flys.artifacts.model.GaugesFactory;
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28 import de.intevation.flys.exports.ChartExportHelper;
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29
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30
8940b0885865 Added a DischargeCurveGenerator that creates discharge curves.
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31 /**
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32 * An OutGenerator that generates discharge curves.
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33 *
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34 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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35 */
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36 public class DischargeCurveGenerator implements OutGenerator {
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37
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38 /** The logger used in this generator.*/
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39 private static Logger logger =
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40 Logger.getLogger(DischargeCurveGenerator.class);
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41
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42 /** The document of the incoming out() request.*/
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43 protected Document request;
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44
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45 /** The output stream where the data should be written to.*/
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46 protected OutputStream out;
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47
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48 /** The CallContext object.*/
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49 protected CallContext context;
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50
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51 /** The Dataset that contains the data for the chart.*/
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52 protected DefaultXYDataset dataset;
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53
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54
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55 public DischargeCurveGenerator() {
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56 }
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57
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58
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59 public void init(Document request, OutputStream out, CallContext context) {
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60 logger.debug("DischargeCurveGenerator.init");
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61
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62 this.request = request;
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63 this.out = out;
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64 this.context = context;
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65
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66 this.dataset = new DefaultXYDataset();
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67 }
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68
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69
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70 public void doOut(Artifact artifact, Document attr) {
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71 logger.debug("DischargeCurveGenerator.doOut");
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72
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73 if (!(artifact instanceof FLYSArtifact)) {
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74 logger.error("Artifact is no instance of FLYSArtifact.");
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75 return;
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76 }
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77
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78 FLYSArtifact flysArtifact = (FLYSArtifact) artifact;
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79
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80 String river = (String) flysArtifact.getData("river").getValue();
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81 String from = (String) flysArtifact.getData("ld_from").getValue();
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82 String to = (String) flysArtifact.getData("ld_to").getValue();
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83
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84 double f = Double.parseDouble(from);
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85 double t = Double.parseDouble(to);
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86
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87 List<double[]> ranges = new ArrayList<double[]>();
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88 ranges.add(new double [] { f, t });
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89
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90 List<Gauge> gauges = GaugesFactory.getGauges(river);
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91 List<Gauge> filtered = GaugesFactory.filterRanges(gauges, ranges);
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92
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93 if (logger.isDebugEnabled()) {
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94 int numGauges = gauges != null ? gauges.size() : 0;
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95 int numFiltered = filtered != null ? filtered.size() : 0;
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96
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97 logger.debug("++++++++++++++++++++");
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98 logger.debug("Search gauges for river: " + river);
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99 logger.debug("-> ... from range: " + from);
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100 logger.debug("-> ... to range: " + to);
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101 logger.debug("-> Found " + numGauges + " gauges in total.");
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102 logger.debug("-> Found " + numFiltered + " gauges after filtering.");
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103 logger.debug("++++++++++++++++++++");
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104 }
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105
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106 String[] gaugeNames = new String[filtered.size()];
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107 int idx = 0;
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108 for (Gauge gauge: filtered) {
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109 gaugeNames[idx++] = gauge.getName();
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110 }
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111
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112 DischargeTables dt = new DischargeTables(river, gaugeNames);
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113 Map<String, double[][]> gaugeValues = dt.getValues(100d);
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114
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115 for (String gauge: gaugeNames) {
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116 double[][] values = gaugeValues.get(gauge);
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117 dataset.addSeries(gauge, values);
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118 }
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119
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120 }
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121
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122
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123 public void generate()
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124 throws IOException
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125 {
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126 logger.debug("DischargeCurveGenerator.generate");
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127
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128 JFreeChart chart = ChartFactory.createXYLineChart(
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129 "Abflusskurven",
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130 "Q", "W",
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131 dataset,
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132 PlotOrientation.VERTICAL,
8940b0885865 Added a DischargeCurveGenerator that creates discharge curves.
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parents:
diff changeset
133 true,
8940b0885865 Added a DischargeCurveGenerator that creates discharge curves.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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134 false,
8940b0885865 Added a DischargeCurveGenerator that creates discharge curves.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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135 false);
8940b0885865 Added a DischargeCurveGenerator that creates discharge curves.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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136
8940b0885865 Added a DischargeCurveGenerator that creates discharge curves.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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137 chart.setBackgroundPaint(Color.WHITE);
8940b0885865 Added a DischargeCurveGenerator that creates discharge curves.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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138 chart.getPlot().setBackgroundPaint(Color.WHITE);
8940b0885865 Added a DischargeCurveGenerator that creates discharge curves.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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139
8940b0885865 Added a DischargeCurveGenerator that creates discharge curves.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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140 ChartExportHelper.exportImage(
8940b0885865 Added a DischargeCurveGenerator that creates discharge curves.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
141 out,
8940b0885865 Added a DischargeCurveGenerator that creates discharge curves.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
142 chart,
8940b0885865 Added a DischargeCurveGenerator that creates discharge curves.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
143 "png",
8940b0885865 Added a DischargeCurveGenerator that creates discharge curves.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
144 600, 400);
8940b0885865 Added a DischargeCurveGenerator that creates discharge curves.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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145 }
8940b0885865 Added a DischargeCurveGenerator that creates discharge curves.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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146 }
8940b0885865 Added a DischargeCurveGenerator that creates discharge curves.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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147 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
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