Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/services/FixingsKMChartService.java @ 3152:368d1837ce5d

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Removed trailing whitespace. flys-artifacts/trunk@4762 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Sat, 23 Jun 2012 08:09:42 +0000
parents 08230c76cd92
children 0d8146989012
rev   line source
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036e234c2385 Added service to generate a chart of fixings for given river and km applied
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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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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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21 import de.intevation.flys.backend.SessionHolder;
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22
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23 import de.intevation.flys.utils.Pair;
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25 import gnu.trove.TDoubleArrayList;
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27 import java.awt.BasicStroke;
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28 import java.awt.Color;
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29 import java.awt.Dimension;
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30 import java.awt.Transparency;
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31
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32 import java.awt.image.BufferedImage;
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34 import java.io.ByteArrayOutputStream;
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35 import java.io.IOException;
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36
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37 import java.util.ArrayList;
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38 import java.util.List;
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39
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40 import javax.imageio.ImageIO;
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42 import org.apache.log4j.Logger;
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43
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44 import org.jfree.chart.ChartFactory;
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45 import org.jfree.chart.ChartUtilities;
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46 import org.jfree.chart.JFreeChart;
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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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53 import org.jfree.data.xy.DefaultXYDataset;
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55 import org.jfree.ui.RectangleAnchor;
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56 import org.jfree.ui.TextAnchor;
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57
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58 import org.w3c.dom.Document;
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59 import org.w3c.dom.Element;
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60 import org.w3c.dom.NodeList;
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61
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62 public class FixingsKMChartService
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63 extends DefaultService
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64 {
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65 private static final Logger log =
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66 Logger.getLogger(FixingsKMChartService.class);
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67
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68 public static final int DEFAULT_WIDTH = 240;
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69 public static final int DEFAULT_HEIGHT = 180;
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71 // TODO: i18n
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72 public static final String [] Q_SECTOR_LABELS = {
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73 "(MNQ + MQ)/2",
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74 "(MQ + MHQ)/2",
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75 "HQ5"
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76 };
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77
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78 public static final String DEFAULT_FORMAT = "png";
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80 // TODO: Load fancy image from resources.
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81 public static final byte [] EMPTY = {
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82 (byte)0x89, (byte)0x50, (byte)0x4e, (byte)0x47,
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83 (byte)0x0d, (byte)0x0a, (byte)0x1a, (byte)0x0a,
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84 (byte)0x00, (byte)0x00, (byte)0x00, (byte)0x0d,
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85 (byte)0x49, (byte)0x48, (byte)0x44, (byte)0x52,
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86 (byte)0x00, (byte)0x00, (byte)0x00, (byte)0x01,
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87 (byte)0x00, (byte)0x00, (byte)0x00, (byte)0x01,
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88 (byte)0x08, (byte)0x00, (byte)0x00, (byte)0x00,
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89 (byte)0x00, (byte)0x3a, (byte)0x7e, (byte)0x9b,
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90 (byte)0x55, (byte)0x00, (byte)0x00, (byte)0x00,
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91 (byte)0x01, (byte)0x73, (byte)0x52, (byte)0x47,
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92 (byte)0x42, (byte)0x00, (byte)0xae, (byte)0xce,
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93 (byte)0x1c, (byte)0xe9, (byte)0x00, (byte)0x00,
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94 (byte)0x00, (byte)0x09, (byte)0x70, (byte)0x48,
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95 (byte)0x59, (byte)0x73, (byte)0x00, (byte)0x00,
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96 (byte)0x0b, (byte)0x13, (byte)0x00, (byte)0x00,
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97 (byte)0x0b, (byte)0x13, (byte)0x01, (byte)0x00,
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98 (byte)0x9a, (byte)0x9c, (byte)0x18, (byte)0x00,
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99 (byte)0x00, (byte)0x00, (byte)0x07, (byte)0x74,
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100 (byte)0x49, (byte)0x4d, (byte)0x45, (byte)0x07,
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101 (byte)0xdc, (byte)0x04, (byte)0x04, (byte)0x10,
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102 (byte)0x30, (byte)0x15, (byte)0x7d, (byte)0x77,
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103 (byte)0x36, (byte)0x0b, (byte)0x00, (byte)0x00,
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104 (byte)0x00, (byte)0x08, (byte)0x74, (byte)0x45,
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105 (byte)0x58, (byte)0x74, (byte)0x43, (byte)0x6f,
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2621
diff changeset
106 (byte)0x6d, (byte)0x6d, (byte)0x65, (byte)0x6e,
5642a83420f2 FLYS artifacts: Removed trailing whitespace.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2621
diff changeset
107 (byte)0x74, (byte)0x00, (byte)0xf6, (byte)0xcc,
5642a83420f2 FLYS artifacts: Removed trailing whitespace.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2621
diff changeset
108 (byte)0x96, (byte)0xbf, (byte)0x00, (byte)0x00,
5642a83420f2 FLYS artifacts: Removed trailing whitespace.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2621
diff changeset
109 (byte)0x00, (byte)0x0a, (byte)0x49, (byte)0x44,
5642a83420f2 FLYS artifacts: Removed trailing whitespace.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2621
diff changeset
110 (byte)0x41, (byte)0x54, (byte)0x08, (byte)0xd7,
5642a83420f2 FLYS artifacts: Removed trailing whitespace.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2621
diff changeset
111 (byte)0x63, (byte)0xf8, (byte)0x0f, (byte)0x00,
5642a83420f2 FLYS artifacts: Removed trailing whitespace.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2621
diff changeset
112 (byte)0x01, (byte)0x01, (byte)0x01, (byte)0x00,
5642a83420f2 FLYS artifacts: Removed trailing whitespace.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2621
diff changeset
113 (byte)0x1b, (byte)0xb6, (byte)0xee, (byte)0x56,
5642a83420f2 FLYS artifacts: Removed trailing whitespace.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2621
diff changeset
114 (byte)0x00, (byte)0x00, (byte)0x00, (byte)0x00,
5642a83420f2 FLYS artifacts: Removed trailing whitespace.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2621
diff changeset
115 (byte)0x49, (byte)0x45, (byte)0x4e, (byte)0x44,
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2614
diff changeset
116 (byte)0xae, (byte)0x42, (byte)0x60, (byte)0x82
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parents: 2614
diff changeset
117 };
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2614
diff changeset
118
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diff changeset
119 private static final Output empty() {
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diff changeset
120 return new Output(EMPTY, "image/png");
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parents: 2614
diff changeset
121 }
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parents:
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122
036e234c2385 Added service to generate a chart of fixings for given river and km applied
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diff changeset
123 @Override
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
124 public Service.Output process(
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
125 Document data,
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
126 GlobalContext globalContext,
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
127 CallMeta callMeta
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
128 ) {
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
129 log.debug("FixingsKMChartService.process");
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130
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diff changeset
131 SessionHolder.acquire();
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parents: 2614
diff changeset
132 try {
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diff changeset
133 return doProcess(data, globalContext, callMeta);
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134 }
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diff changeset
135 finally {
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diff changeset
136 SessionHolder.HOLDER.get().close();
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diff changeset
137 SessionHolder.release();
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parents: 2614
diff changeset
138 }
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parents: 2614
diff changeset
139 }
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diff changeset
140
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diff changeset
141 protected Service.Output doProcess(
2620
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142 Document input,
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diff changeset
143 GlobalContext globalContext,
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parents: 2614
diff changeset
144 CallMeta callMeta
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145 ) {
2620
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146 String river = getRiverName(input);
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147 Double km = getKM(input);
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148 Dimension extent = getExtent(input);
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149 String format = getFormat(input);
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150
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diff changeset
151 if (river == null || km == null) {
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152 log.warn("River and/or km invalid.");
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153 return empty();
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parents: 2614
diff changeset
154 }
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parents: 2614
diff changeset
155
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diff changeset
156 FixingsOverview overview = FixingsOverviewFactory.getOverview(river);
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diff changeset
157
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diff changeset
158 if (overview == null) {
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diff changeset
159 log.warn("No overview found for river '" + river + "'");
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diff changeset
160 return empty();
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parents: 2614
diff changeset
161 }
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diff changeset
162
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parents: 2615
diff changeset
163 FixingsFilterBuilder ffb = new FixingsFilterBuilder(input);
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diff changeset
164
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diff changeset
165 List<Fixing.Column> columns = overview.filter(
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diff changeset
166 ffb.getRange(),
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parents: 2614
diff changeset
167 ffb.getFilter());
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diff changeset
168
2620
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diff changeset
169 List<Pair<Fixing.Column, FixingsColumn>> cols =
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diff changeset
170 new ArrayList<Pair<Fixing.Column, FixingsColumn>>();
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parents: 2615
diff changeset
171
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diff changeset
172 for (Fixing.Column col: columns) {
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parents: 2615
diff changeset
173 FixingsColumn data =
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diff changeset
174 FixingsColumnFactory.INSTANCE.getColumnData(col);
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parents: 2615
diff changeset
175 if (data != null) {
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parents: 2615
diff changeset
176 cols.add(new Pair<Fixing.Column, FixingsColumn>(col, data));
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diff changeset
177 }
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parents: 2614
diff changeset
178 }
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diff changeset
179
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diff changeset
180 JFreeChart chart = createChart(cols, river, km);
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parents: 2615
diff changeset
181
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parents: 2615
diff changeset
182 return encode(chart, extent, format);
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parents: 2615
diff changeset
183 }
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parents: 2615
diff changeset
184
cc0fa1798a3c FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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diff changeset
185 protected static Output encode(
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diff changeset
186 JFreeChart chart,
3076
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diff changeset
187 Dimension extent,
2620
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diff changeset
188 String format
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parents: 2615
diff changeset
189 ) {
cc0fa1798a3c FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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diff changeset
190 BufferedImage image = chart.createBufferedImage(
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parents: 2615
diff changeset
191 extent.width, extent.height,
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parents: 2615
diff changeset
192 Transparency.BITMASK,
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parents: 2615
diff changeset
193 null);
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parents: 2615
diff changeset
194
cc0fa1798a3c FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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parents: 2615
diff changeset
195 ByteArrayOutputStream out = new ByteArrayOutputStream();
cc0fa1798a3c FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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parents: 2615
diff changeset
196
cc0fa1798a3c FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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parents: 2615
diff changeset
197 try {
cc0fa1798a3c FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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parents: 2615
diff changeset
198 ImageIO.write(image, format, out);
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parents: 2615
diff changeset
199 }
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parents: 2615
diff changeset
200 catch (IOException ioe) {
cc0fa1798a3c FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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parents: 2615
diff changeset
201 log.warn("writing image failed", ioe);
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parents: 2615
diff changeset
202 return empty();
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parents: 2615
diff changeset
203 }
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
204
cc0fa1798a3c FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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parents: 2615
diff changeset
205 return new Output(out.toByteArray(), "image/" + format);
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parents: 2615
diff changeset
206 }
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
207
cc0fa1798a3c FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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diff changeset
208 protected static JFreeChart createChart(
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diff changeset
209 List<Pair<Fixing.Column, FixingsColumn>> cols,
cc0fa1798a3c FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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parents: 2615
diff changeset
210 String river,
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parents: 2615
diff changeset
211 double km
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parents: 2615
diff changeset
212 ) {
cc0fa1798a3c FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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parents: 2615
diff changeset
213
cc0fa1798a3c FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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parents: 2615
diff changeset
214 TDoubleArrayList ws = new TDoubleArrayList(cols.size());
cc0fa1798a3c FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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parents: 2615
diff changeset
215 TDoubleArrayList qs = new TDoubleArrayList(cols.size());
cc0fa1798a3c FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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parents: 2615
diff changeset
216
cc0fa1798a3c FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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parents: 2615
diff changeset
217 double [] w = new double[1];
cc0fa1798a3c FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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parents: 2615
diff changeset
218 for (Pair<Fixing.Column, FixingsColumn> col: cols) {
cc0fa1798a3c FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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parents: 2615
diff changeset
219 boolean interpolated = col.getB().getW(km, w);
cc0fa1798a3c FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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parents: 2615
diff changeset
220 // TODO: Do something special with the interpolated values.
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221 double q = col.getB().getQ(km);
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222 if (!Double.isNaN(w[0]) && !Double.isNaN(q)) {
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223 ws.add(w[0]);
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224 qs.add(q);
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225 // TODO: Generate labels depending on sectors.
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226 }
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227 }
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228
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229 DefaultXYDataset dataset = new DefaultXYDataset();
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230
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231 dataset.addSeries(
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232 "Fixierungen", // TODO: i18n
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233 new double [][] { qs.toNativeArray(), ws.toNativeArray() });
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234
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235 JFreeChart chart = ChartFactory.createScatterPlot(
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236 "Fixierungen " + river + ": km " + km, // TODO: i18n
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237 "Q", // TODO: i18n
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238 "W", // TODO: i18n
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239 dataset,
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240 PlotOrientation.VERTICAL,
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241 true,
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242 false,
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243 false);
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244
3146
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245 applyQSectorMarkers(chart.getXYPlot(), river, km);
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246
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247 ChartUtilities.applyCurrentTheme(chart);
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248
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249 return chart;
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250 }
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251
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252 protected static void applyQSectorMarkers(
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253 XYPlot plot,
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254 String river,
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255 double km
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256 ) {
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257 GaugeFinderFactory ggf = GaugeFinderFactory.getInstance();
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258 GaugeFinder gf = ggf.getGaugeFinder(river);
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259
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260 if (gf == null) {
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261 log.warn("No gauge finder found for river '" + river + "'");
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262 return;
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263 }
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264
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265 GaugeRange gr = gf.find(km);
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266 if (gr == null) {
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267 log.debug("No gauge range found for km "
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268 + km + " on river " + river + ".");
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269 return;
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270 }
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271
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272 if (log.isDebugEnabled()) {
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273 log.debug(gr);
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274 }
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275
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276 for (int i = 0; i < Q_SECTOR_LABELS.length; ++i) {
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277 Marker m = createQSectorMarker(
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278 gr.getSectorBorder(i),
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279 Q_SECTOR_LABELS[i]);
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280 if (m != null) {
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281 plot.addDomainMarker(m);
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282 }
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283 }
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284 }
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285
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286 protected static Marker createQSectorMarker(double value, String label) {
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287 if (Double.isNaN(value)) {
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288 return null;
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289 }
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290 Marker m = new ValueMarker(value);
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291 m.setPaint(Color.black);
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diff changeset
292 m.setStroke(new BasicStroke());
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293 m.setLabel(label);
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diff changeset
294 m.setLabelAnchor(RectangleAnchor.TOP_LEFT);
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295 m.setLabelTextAnchor(TextAnchor.TOP_LEFT);
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diff changeset
296 return m;
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297 }
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298
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diff changeset
299 protected static String getRiverName(Document input) {
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diff changeset
300 NodeList rivers = input.getElementsByTagName("river");
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301
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diff changeset
302 if (rivers.getLength() == 0) {
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diff changeset
303 return null;
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304 }
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parents: 2615
diff changeset
305
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diff changeset
306 String river = ((Element)rivers.item(0)).getAttribute("name");
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diff changeset
307
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308 return river.length() > 0 ? river : null;
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309 }
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diff changeset
310
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diff changeset
311 protected static Double getKM(Document input) {
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312 NodeList kms = input.getElementsByTagName("km");
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313
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diff changeset
314 if (kms.getLength() == 0) {
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diff changeset
315 return null;
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316 }
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diff changeset
317
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diff changeset
318 String km = ((Element)kms.item(0)).getAttribute("value");
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diff changeset
319
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diff changeset
320 try {
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321 return Double.valueOf(km);
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322 }
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diff changeset
323 catch (NumberFormatException nfe) {
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diff changeset
324 log.warn("Km '" + km + " is not a valid number.");
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325 return null;
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diff changeset
326 }
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diff changeset
327 }
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diff changeset
328
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diff changeset
329 protected static Dimension getExtent(Document input) {
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diff changeset
330
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diff changeset
331 int width = DEFAULT_WIDTH;
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diff changeset
332 int height = DEFAULT_HEIGHT;
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parents: 2615
diff changeset
333
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parents: 2615
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334 NodeList extents = input.getElementsByTagName("extent");
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parents: 2615
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335
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parents: 2615
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336 if (extents.getLength() > 0) {
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parents: 2615
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337 Element element = (Element)extents.item(0);
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parents: 2615
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338 String w = element.getAttribute("width");
cc0fa1798a3c FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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parents: 2615
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339 String h = element.getAttribute("height");
cc0fa1798a3c FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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parents: 2615
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340
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parents: 2615
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341 try {
cc0fa1798a3c FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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parents: 2615
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342 width = Math.max(1, Integer.parseInt(w));
cc0fa1798a3c FixingsKMChartService: Generate chart and deliver the image as the response of the service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2615
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343 }
cc0fa1798a3c FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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parents: 2615
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344 catch (NumberFormatException nfe) {
cc0fa1798a3c FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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parents: 2615
diff changeset
345 log.warn("width '" + w + "' is not a valid.");
cc0fa1798a3c FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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parents: 2615
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346 }
cc0fa1798a3c FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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parents: 2615
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347
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parents: 2615
diff changeset
348 try {
cc0fa1798a3c FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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parents: 2615
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349 height = Math.max(1, Integer.parseInt(h));
cc0fa1798a3c FixingsKMChartService: Generate chart and deliver the image as the response of the service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2615
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350 }
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
351 catch (NumberFormatException nfe) {
cc0fa1798a3c FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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parents: 2615
diff changeset
352 log.warn("height '" + h + "' is not a valid");
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parents: 2615
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353 }
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parents: 2615
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354 }
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parents: 2615
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355
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parents: 2615
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356 return new Dimension(width, height);
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parents: 2615
diff changeset
357 }
cc0fa1798a3c FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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parents: 2615
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358
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parents: 2615
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359 protected static String getFormat(Document input) {
cc0fa1798a3c FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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parents: 2615
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360 String format = DEFAULT_FORMAT;
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parents: 2615
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361
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parents: 2615
diff changeset
362 NodeList formats = input.getElementsByTagName("format");
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parents: 2615
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363
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parents: 2615
diff changeset
364 if (formats.getLength() > 0) {
cc0fa1798a3c FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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parents: 2615
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365 String type = ((Element)formats.item(0)).getAttribute("type");
cc0fa1798a3c FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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parents: 2615
diff changeset
366 if (type.length() > 0) {
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parents: 2615
diff changeset
367 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
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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 }
cc0fa1798a3c FixingsKMChartService: Generate chart and deliver the image as the response of the service.
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parents: 2615
diff changeset
370
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
371 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
372 }
036e234c2385 Added service to generate a chart of fixings for given river and km applied
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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373 }
036e234c2385 Added service to generate a chart of fixings for given river and km applied
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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374 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org