Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/artifacts/services/FixingsKMChartService.java @ 9312:740d65e4aa14

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Q [m³/s] one message
author gernotbelger
date Thu, 26 Jul 2018 15:54:20 +0200
parents fe7e9da6312a
children 9744ce3c3853
rev   line source
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Sascha L. Teichmann <teichmann@intevation.de>
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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.BasicStroke;
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12 import java.awt.Color;
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13 import java.awt.Dimension;
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14 import java.awt.Transparency;
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15 import java.awt.geom.Rectangle2D;
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16 import java.awt.image.BufferedImage;
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17 import java.io.ByteArrayOutputStream;
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18 import java.io.IOException;
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19 import java.util.ArrayList;
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20 import java.util.List;
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21
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22 import javax.imageio.ImageIO;
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23
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24 import org.apache.log4j.Logger;
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25 import org.dive4elements.artifactdatabase.DefaultService;
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26 import org.dive4elements.artifacts.CallMeta;
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27 import org.dive4elements.artifacts.GlobalContext;
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28 import org.dive4elements.artifacts.Service;
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29 import org.dive4elements.river.artifacts.model.FixingsColumn;
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30 import org.dive4elements.river.artifacts.model.FixingsColumnFactory;
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31 import org.dive4elements.river.artifacts.model.FixingsFilterBuilder;
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32 import org.dive4elements.river.artifacts.model.FixingsOverview;
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33 import org.dive4elements.river.artifacts.model.FixingsOverview.Fixing;
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34 import org.dive4elements.river.artifacts.model.FixingsOverviewFactory;
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35 import org.dive4elements.river.artifacts.model.GaugeFinder;
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36 import org.dive4elements.river.artifacts.model.GaugeFinderFactory;
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37 import org.dive4elements.river.artifacts.model.GaugeRange;
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38 import org.dive4elements.river.artifacts.model.fixings.QWI;
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39 import org.dive4elements.river.artifacts.resources.Resources;
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40 import org.dive4elements.river.backend.SessionHolder;
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41 import org.dive4elements.river.jfree.ShapeRenderer;
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42 import org.dive4elements.river.utils.Formatter;
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43 import org.dive4elements.river.utils.Pair;
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44 import org.jfree.chart.ChartFactory;
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45 import org.jfree.chart.JFreeChart;
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46 import org.jfree.chart.LegendItemCollection;
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47 import org.jfree.chart.axis.NumberAxis;
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48 import org.jfree.chart.plot.Marker;
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49 import org.jfree.chart.plot.PlotOrientation;
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50 import org.jfree.chart.plot.ValueMarker;
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51 import org.jfree.chart.plot.XYPlot;
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52 import org.jfree.data.Range;
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53 import org.jfree.ui.RectangleAnchor;
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54 import org.jfree.ui.TextAnchor;
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55 import org.w3c.dom.Document;
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56 import org.w3c.dom.Element;
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57 import org.w3c.dom.NodeList;
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58
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59 /** Serve chart of Fixings at certain km. */
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60 public class FixingsKMChartService extends DefaultService {
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61 private static final Logger log = Logger.getLogger(FixingsKMChartService.class);
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62
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63 public static final int DEFAULT_WIDTH = 240;
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64 public static final int DEFAULT_HEIGHT = 180;
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65
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66 public static final String[] I18N_Q_SECTOR_BOARDERS = { "fix.km.chart.q.sector.border0", "fix.km.chart.q.sector.border1", "fix.km.chart.q.sector.border2" };
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67
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68 public static final String[] DEFAULT_Q_SECTOR_BORDERS = { "(MNQ + MQ)/2", "(MQ + MHQ)/2", "HQ5" };
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69
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70 public static final String I18N_CHART_LABEL_DATE = "fix.km.chart.label.date";
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71
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72 public static final String DEFAULT_CHART_LABEL_DATE = "yyyy/MM/dd";
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73
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74 public static final String I18N_CHART_TITLE = "fix.km.chart.title";
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75
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76 public static final String DEFAULT_CHART_TITLE = "Fixings {0} km {1,number,#.###}";
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77
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78 public static final String I18N_Q_AXIS = "common.export.csv.header.q";
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79
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80 public static final String DEFAULT_Q_AXIS = "Q [m\u00b3/s]";
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81
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82 public static final String I18N_W_AXIS = "fix.km.chart.w.axis";
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83
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84 public static final String DEFAULT_W_AXIS = "W [NN + m]";
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85
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86 public static final String I18N_MEASURED = "fix.km.chart.measured";
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87
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88 public static final String DEFAULT_MEASURED = "measured";
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89
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90 public static final String I18N_INTERPOLATED = "fix.km.chart.interpolated";
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91
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92 public static final String DEFAULT_INTERPOLATED = "interpolated";
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93
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94 public static final String DEFAULT_FORMAT = "png";
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96 // TODO: Load fancy image from resources.
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97 public static final byte[] EMPTY = { (byte) 0x89, (byte) 0x50, (byte) 0x4e, (byte) 0x47, (byte) 0x0d, (byte) 0x0a, (byte) 0x1a, (byte) 0x0a, (byte) 0x00,
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98 (byte) 0x00, (byte) 0x00, (byte) 0x0d, (byte) 0x49, (byte) 0x48, (byte) 0x44, (byte) 0x52, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x01,
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99 (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x01, (byte) 0x08, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x3a, (byte) 0x7e,
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100 (byte) 0x9b, (byte) 0x55, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x01, (byte) 0x73, (byte) 0x52, (byte) 0x47, (byte) 0x42, (byte) 0x00,
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101 (byte) 0xae, (byte) 0xce, (byte) 0x1c, (byte) 0xe9, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x09, (byte) 0x70, (byte) 0x48, (byte) 0x59,
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102 (byte) 0x73, (byte) 0x00, (byte) 0x00, (byte) 0x0b, (byte) 0x13, (byte) 0x00, (byte) 0x00, (byte) 0x0b, (byte) 0x13, (byte) 0x01, (byte) 0x00,
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103 (byte) 0x9a, (byte) 0x9c, (byte) 0x18, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x07, (byte) 0x74, (byte) 0x49, (byte) 0x4d, (byte) 0x45,
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104 (byte) 0x07, (byte) 0xdc, (byte) 0x04, (byte) 0x04, (byte) 0x10, (byte) 0x30, (byte) 0x15, (byte) 0x7d, (byte) 0x77, (byte) 0x36, (byte) 0x0b,
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105 (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x08, (byte) 0x74, (byte) 0x45, (byte) 0x58, (byte) 0x74, (byte) 0x43, (byte) 0x6f, (byte) 0x6d,
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106 (byte) 0x6d, (byte) 0x65, (byte) 0x6e, (byte) 0x74, (byte) 0x00, (byte) 0xf6, (byte) 0xcc, (byte) 0x96, (byte) 0xbf, (byte) 0x00, (byte) 0x00,
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107 (byte) 0x00, (byte) 0x0a, (byte) 0x49, (byte) 0x44, (byte) 0x41, (byte) 0x54, (byte) 0x08, (byte) 0xd7, (byte) 0x63, (byte) 0xf8, (byte) 0x0f,
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108 (byte) 0x00, (byte) 0x01, (byte) 0x01, (byte) 0x01, (byte) 0x00, (byte) 0x1b, (byte) 0xb6, (byte) 0xee, (byte) 0x56, (byte) 0x00, (byte) 0x00,
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109 (byte) 0x00, (byte) 0x00, (byte) 0x49, (byte) 0x45, (byte) 0x4e, (byte) 0x44, (byte) 0xae, (byte) 0x42, (byte) 0x60, (byte) 0x82 };
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110
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111 private static final Output empty() {
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112 return new Output(EMPTY, "image/png");
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113 }
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115 @Override
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116 public Service.Output process(final Document data, final GlobalContext globalContext, final CallMeta callMeta) {
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117 log.debug("FixingsKMChartService.process");
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118
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119 SessionHolder.acquire();
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120 try {
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121 return doProcess(data, globalContext, callMeta);
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122 } finally {
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123 SessionHolder.release();
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124 }
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125 }
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126
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127 protected Service.Output doProcess(final Document input, final GlobalContext globalContext, final CallMeta callMeta) {
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128 final String river = getRiverName(input);
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129 final Double km = getKM(input);
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130 final Dimension extent = getExtent(input);
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131 final String format = getFormat(input);
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132
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133 if (river == null || km == null) {
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134 log.warn("River and/or km invalid.");
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135 return empty();
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136 }
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137
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138 final FixingsOverview overview = FixingsOverviewFactory.getOverview(river);
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139
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140 if (overview == null) {
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141 log.warn("No overview found for river '" + river + "'");
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142 return empty();
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143 }
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144
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145 final FixingsFilterBuilder ffb = new FixingsFilterBuilder(input);
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146
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147 final List<Fixing.Column> columns = overview.filter(ffb.getRange(), ffb.getFilter());
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148
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149 final List<Pair<Fixing.Column, FixingsColumn>> cols = new ArrayList<>();
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150
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151 for (final Fixing.Column col : columns) {
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152 final FixingsColumn data = FixingsColumnFactory.INSTANCE.getColumnData(col);
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153 if (data != null) {
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154 cols.add(new Pair<>(col, data));
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155 }
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156 }
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157
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158 final JFreeChart chart = createChart(cols, river, km, callMeta);
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159
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160 return encode(chart, extent, format);
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161 }
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162
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163 protected static Output encode(final JFreeChart chart, final Dimension extent, final String format) {
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164 final BufferedImage image = chart.createBufferedImage(extent.width, extent.height, Transparency.BITMASK, null);
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165
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166 final ByteArrayOutputStream out = new ByteArrayOutputStream();
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167
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168 try {
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169 ImageIO.write(image, format, out);
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170 }
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171 catch (final IOException ioe) {
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172 log.warn("writing image failed", ioe);
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173 return empty();
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174 }
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175
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176 return new Output(out.toByteArray(), "image/" + format);
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177 }
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178
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179 protected static JFreeChart createChart(final List<Pair<Fixing.Column, FixingsColumn>> cols, final String river, final double km, final CallMeta callMeta) {
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180 final String labelFormat = Resources.getMsg(callMeta, I18N_CHART_LABEL_DATE, DEFAULT_CHART_LABEL_DATE);
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181
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182 final QWSeriesCollection.LabelGenerator lg = new QWSeriesCollection.DateFormatLabelGenerator(labelFormat);
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183
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184 final QWSeriesCollection dataset = new QWSeriesCollection(lg);
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185
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186 final double[] w = new double[1];
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187 for (final Pair<Fixing.Column, FixingsColumn> col : cols) {
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188 final boolean interpolated = !col.getB().getW(km, w);
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189 final double q = col.getB().getQ(km);
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190 if (!Double.isNaN(w[0]) && !Double.isNaN(q)) {
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191 final QWI qw = new QWI(q, w[0], col.getA().getDescription(), col.getA().getStartTime(), interpolated, 0);
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192 dataset.add(qw);
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193 }
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194 }
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195
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196 final String title = Resources.format(callMeta, I18N_CHART_TITLE, DEFAULT_CHART_TITLE, river, km);
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197
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198 final String qAxis = Resources.getMsg(callMeta, I18N_Q_AXIS, DEFAULT_Q_AXIS);
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199
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200 final String wAxis = Resources.getMsg(callMeta, I18N_W_AXIS, DEFAULT_W_AXIS);
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201
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202 final JFreeChart chart = ChartFactory.createXYLineChart(title, qAxis, wAxis, null, PlotOrientation.VERTICAL, true, true, false);
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203
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204 final XYPlot plot = (XYPlot) chart.getPlot();
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205
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206 final NumberAxis qA = (NumberAxis) plot.getDomainAxis();
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207 qA.setNumberFormatOverride(Formatter.getWaterlevelQ(callMeta));
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208
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209 final NumberAxis wA = (NumberAxis) plot.getRangeAxis();
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210 wA.setNumberFormatOverride(Formatter.getWaterlevelW(callMeta));
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211
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212 plot.setRenderer(0, dataset.createRenderer());
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213 plot.setDataset(0, dataset);
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214
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215 final Rectangle2D area = dataset.getArea();
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216
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217 if (area != null) {
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218 final double height = area.getHeight();
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219 final double wInset = Math.max(height, 0.01) * 0.25d;
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220
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221 wA.setAutoRangeIncludesZero(false);
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222 wA.setRange(new Range(area.getMinY() - wInset, area.getMaxY() + wInset));
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223 }
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224
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225 final String measuredS = Resources.getMsg(callMeta, I18N_MEASURED, DEFAULT_MEASURED);
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226
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227 final String interpolatedS = Resources.getMsg(callMeta, I18N_INTERPOLATED, DEFAULT_INTERPOLATED);
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228
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229 final LegendItemCollection lic = plot.getLegendItems();
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230 dataset.addLegendItems(lic, new ShapeRenderer.LabelGenerator() {
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231 @Override
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232 public String createLabel(final ShapeRenderer.Entry entry) {
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233 return entry.getFilled() ? measuredS : interpolatedS;
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234 }
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235 });
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236 plot.setFixedLegendItems(lic);
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237
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238 applyQSectorMarkers(plot, river, km, callMeta);
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239
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240 chart.setBackgroundPaint(Color.white);
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241 plot.setBackgroundPaint(Color.white);
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242 plot.setDomainGridlinePaint(Color.gray);
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243 plot.setRangeGridlinePaint(Color.gray);
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244 plot.setDomainGridlinesVisible(true);
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245 plot.setRangeGridlinesVisible(true);
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246
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247 return chart;
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248 }
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249
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250 /** Add domain markers to plot that indicate Q-sectors. */
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251 protected static void applyQSectorMarkers(final XYPlot plot, final String river, final double km, final CallMeta meta) {
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252 final GaugeFinderFactory ggf = GaugeFinderFactory.getInstance();
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253 final GaugeFinder gf = ggf.getGaugeFinder(river);
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254
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255 if (gf == null) {
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256 log.warn("No gauge finder found for river '" + river + "'");
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257 return;
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258 }
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259
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260 final GaugeRange gr = gf.find(km);
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261 if (gr == null) {
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262 log.debug("No gauge range found for km " + km + " on river " + river + ".");
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263 return;
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264 }
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265
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266 if (log.isDebugEnabled()) {
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267 log.debug(gr);
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268 }
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269
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270 for (int i = 0; i < I18N_Q_SECTOR_BOARDERS.length; ++i) {
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271 final String key = I18N_Q_SECTOR_BOARDERS[i];
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272 final String def = DEFAULT_Q_SECTOR_BORDERS[i];
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273 final String label = Resources.getMsg(meta, key, def);
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274
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275 final Marker m = createQSectorMarker(gr.getSectorBorder(i), label);
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276
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277 if (m != null) {
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278 plot.addDomainMarker(m);
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279 }
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280 }
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281 }
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282
5373
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283 /** Create Marker at value with label. */
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284 protected static Marker createQSectorMarker(final double value, final String label) {
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285 if (Double.isNaN(value)) {
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286 return null;
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287 }
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288 final Marker m = new ValueMarker(value);
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289 m.setPaint(Color.black);
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290 m.setStroke(new BasicStroke());
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291 m.setLabel(label);
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292 m.setLabelAnchor(RectangleAnchor.TOP_LEFT);
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293 m.setLabelTextAnchor(TextAnchor.TOP_LEFT);
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294 return m;
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295 }
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296
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297 protected static String getRiverName(final Document input) {
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298 final NodeList rivers = input.getElementsByTagName("river");
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299
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300 if (rivers.getLength() == 0) {
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301 return null;
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302 }
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303
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304 final String river = ((Element) rivers.item(0)).getAttribute("name");
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305
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306 return river.length() > 0 ? river : null;
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307 }
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diff changeset
308
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309 protected static Double getKM(final Document input) {
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310 final NodeList kms = input.getElementsByTagName("km");
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311
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312 if (kms.getLength() == 0) {
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313 return null;
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314 }
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315
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316 final String km = ((Element) kms.item(0)).getAttribute("value");
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317
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diff changeset
318 try {
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319 return Double.valueOf(km);
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320 }
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321 catch (final NumberFormatException nfe) {
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322 log.warn("Km '" + km + " is not a valid number.");
cc0fa1798a3c FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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323 return null;
cc0fa1798a3c FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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parents: 2615
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324 }
cc0fa1798a3c FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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parents: 2615
diff changeset
325 }
cc0fa1798a3c FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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diff changeset
326
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327 protected static Dimension getExtent(final Document input) {
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328
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329 int width = DEFAULT_WIDTH;
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330 int height = DEFAULT_HEIGHT;
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diff changeset
331
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332 final NodeList extents = input.getElementsByTagName("extent");
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diff changeset
333
cc0fa1798a3c FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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334 if (extents.getLength() > 0) {
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335 final Element element = (Element) extents.item(0);
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336 final String w = element.getAttribute("width");
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337 final String h = element.getAttribute("height");
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338
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diff changeset
339 try {
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340 width = Math.max(1, Integer.parseInt(w));
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341 }
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342 catch (final NumberFormatException nfe) {
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343 log.warn("width '" + w + "' is not a valid.");
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344 }
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diff changeset
345
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diff changeset
346 try {
cc0fa1798a3c FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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347 height = Math.max(1, Integer.parseInt(h));
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348 }
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349 catch (final NumberFormatException nfe) {
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350 log.warn("height '" + h + "' is not a valid");
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351 }
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352 }
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353
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354 return new Dimension(width, height);
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355 }
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diff changeset
356
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357 protected static String getFormat(final Document input) {
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358 String format = DEFAULT_FORMAT;
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diff changeset
359
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360 final NodeList formats = input.getElementsByTagName("format");
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diff changeset
361
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362 if (formats.getLength() > 0) {
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363 final String type = ((Element) formats.item(0)).getAttribute("type");
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diff changeset
364 if (type.length() > 0) {
cc0fa1798a3c FixingsKMChartService: Generate chart and deliver the image as the response of the service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2615
diff changeset
365 format = type;
cc0fa1798a3c FixingsKMChartService: Generate chart and deliver the image as the response of the service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2615
diff changeset
366 }
cc0fa1798a3c FixingsKMChartService: Generate chart and deliver the image as the response of the service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2615
diff changeset
367 }
cc0fa1798a3c FixingsKMChartService: Generate chart and deliver the image as the response of the service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2615
diff changeset
368
cc0fa1798a3c FixingsKMChartService: Generate chart and deliver the image as the response of the service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2615
diff changeset
369 return format;
2614
036e234c2385 Added service to generate a chart of fixings for given river and km applied
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
370 }
036e234c2385 Added service to generate a chart of fixings for given river and km applied
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
371 }
036e234c2385 Added service to generate a chart of fixings for given river and km applied
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
372 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org