Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/exports/ChartGenerator.java @ 1735:5966a20fc72c

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Enabled support for PDF and SVG chart exports. flys-artifacts/trunk@3023 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Wed, 19 Oct 2011 09:43:04 +0000
parents bdb05dc9b763
children 41ba2276d785
rev   line source
348
635af5381a4d Added an abstract OutGenerator that should be the base class for all generators which create charts.
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parents:
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1 package de.intevation.flys.exports;
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2
635af5381a4d Added an abstract OutGenerator that should be the base class for all generators which create charts.
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3 import java.io.IOException;
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4 import java.io.OutputStream;
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5 import java.util.Locale;
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7 import javax.xml.xpath.XPathConstants;
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8
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9 import org.apache.log4j.Logger;
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10
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11 import org.w3c.dom.Document;
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12 import org.w3c.dom.Element;
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14 import org.jfree.data.Range;
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16 import de.intevation.artifacts.Artifact;
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17 import de.intevation.artifacts.CallContext;
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18 import de.intevation.artifacts.CallMeta;
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19 import de.intevation.artifacts.PreferredLocale;
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21 import de.intevation.artifacts.ArtifactNamespaceContext;
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22 import de.intevation.artifacts.common.utils.XMLUtils;
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23
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45cd58a2a2bb OutGenerators doOut() takes a facet object now instead of just its name.
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24 import de.intevation.artifactdatabase.state.Facet;
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26 import de.intevation.flys.model.River;
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28 import de.intevation.flys.artifacts.WINFOArtifact;
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29
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fc3ac59c3c8b Enabled i18n support for charts.
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30 import de.intevation.flys.artifacts.resources.Resources;
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31 import de.intevation.flys.utils.FLYSUtils;
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33
635af5381a4d Added an abstract OutGenerator that should be the base class for all generators which create charts.
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34 /**
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35 * The base class for chart creation. It should provide some basic things that
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36 * equal in all chart types.
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37 *
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38 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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39 */
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40 public abstract class ChartGenerator implements OutGenerator {
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42 private static Logger logger = Logger.getLogger(ChartGenerator.class);
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44
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45 /** The default chart width, if no other width is set. */
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46 public static final int DEFAULT_CHART_WIDTH = 600;
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47
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48 /** The default chart height, if no other height is set.*/
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49 public static final int DEFAULT_CHART_HEIGHT = 400;
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51 /** The default chart format, if no other height is set.*/
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52 public static final String DEFAULT_CHART_FORMAT = "png";
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54 /** The XPath that points to the chart size of the incoming request
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55 * document.*/
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56 public static final String XPATH_CHART_SIZE =
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57 "/art:action/art:attributes/art:size";
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59 public static final String XPATH_CHART_FORMAT =
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60 "/art:action/art:attributes/art:format/@art:value";
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62 public static final String XPATH_CHART_X_RANGE =
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63 "/art:action/art:attributes/art:xrange";
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65 public static final String XPATH_CHART_Y_RANGE =
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66 "/art:action/art:attributes/art:yrange";
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69 /** The document of the incoming out() request.*/
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70 protected Document request;
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71
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72 /** The output stream where the data should be written to.*/
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73 protected OutputStream out;
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74
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75 /** The CallContext object.*/
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76 protected CallContext context;
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78 /** The artifact that is used to decorate the chart with meta information.*/
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79 protected Artifact master;
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82 public void init(Document request, OutputStream out, CallContext context) {
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83 logger.debug("ChartGenerator.init");
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84
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85 this.request = request;
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86 this.out = out;
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87 this.context = context;
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88 }
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91 public void setMasterArtifact(Artifact master) {
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92 this.master = master;
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93 }
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96 protected Locale getLocale() {
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97 CallMeta meta = context.getMeta();
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98 PreferredLocale[] prefs = meta.getLanguages();
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99
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100 int len = prefs != null ? prefs.length : 0;
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102 Locale[] locales = new Locale[len];
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103
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104 for (int i = 0; i < len; i++) {
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105 locales[i] = prefs[i].getLocale();
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106 }
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108 return meta.getPreferredLocale(locales);
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109 }
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110
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112 protected String msg(String key, String def) {
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113 return Resources.getMsg(context.getMeta(), key, def);
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114 }
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117 protected String msg(String key, String def, Object[] args) {
046bd86ae41d Improved the OutGenerator interface to set a master artifact for the out generation.
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diff changeset
118 return Resources.getMsg(context.getMeta(), key, def, args);
046bd86ae41d Improved the OutGenerator interface to set a master artifact for the out generation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 408
diff changeset
119 }
046bd86ae41d Improved the OutGenerator interface to set a master artifact for the out generation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 408
diff changeset
120
046bd86ae41d Improved the OutGenerator interface to set a master artifact for the out generation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 408
diff changeset
121
046bd86ae41d Improved the OutGenerator interface to set a master artifact for the out generation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 408
diff changeset
122 protected String getRiverName() {
1055
61c051e53f9b Moved WINFO specific stuff from FLYS into WINFO artifact.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 719
diff changeset
123 WINFOArtifact flys = (WINFOArtifact) master;
412
046bd86ae41d Improved the OutGenerator interface to set a master artifact for the out generation.
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diff changeset
124
1104
9383a4608d9f Use FLYSUtils.getRiver instead of WINFOArtifact.getRiver.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1095
diff changeset
125 River river = FLYSUtils.getRiver(flys);
9383a4608d9f Use FLYSUtils.getRiver instead of WINFOArtifact.getRiver.
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parents: 1095
diff changeset
126 return (river != null) ? river.getName() : "";
412
046bd86ae41d Improved the OutGenerator interface to set a master artifact for the out generation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 408
diff changeset
127 }
046bd86ae41d Improved the OutGenerator interface to set a master artifact for the out generation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 408
diff changeset
128
046bd86ae41d Improved the OutGenerator interface to set a master artifact for the out generation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
129
046bd86ae41d Improved the OutGenerator interface to set a master artifact for the out generation.
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diff changeset
130 protected double[] getRange() {
1055
61c051e53f9b Moved WINFO specific stuff from FLYS into WINFO artifact.
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parents: 719
diff changeset
131 WINFOArtifact flys = (WINFOArtifact) master;
412
046bd86ae41d Improved the OutGenerator interface to set a master artifact for the out generation.
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diff changeset
132
1095
f465785ed1ae Refactored the code to fetch the km range/locations into a utility class.
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diff changeset
133 return FLYSUtils.getKmRange(flys);
412
046bd86ae41d Improved the OutGenerator interface to set a master artifact for the out generation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 408
diff changeset
134 }
046bd86ae41d Improved the OutGenerator interface to set a master artifact for the out generation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 408
diff changeset
135
046bd86ae41d Improved the OutGenerator interface to set a master artifact for the out generation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
136
423
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 412
diff changeset
137 /**
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
138 * Returns the size of a chart export as array which has been specified by
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 412
diff changeset
139 * the incoming request document.
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 412
diff changeset
140 *
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
141 * @return the size of a chart as [width, height] or the result of
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 412
diff changeset
142 * getDefaultSize() if no width or height are given in the request document.
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 412
diff changeset
143 */
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 412
diff changeset
144 protected int[] getSize() {
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 412
diff changeset
145 int[] size = new int[2];
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
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parents: 412
diff changeset
146
719
035c0095b427 Draw correction curve again.
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parents: 695
diff changeset
147 Element sizeEl = (Element)XMLUtils.xpath(
423
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 412
diff changeset
148 request,
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
149 XPATH_CHART_SIZE,
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
150 XPathConstants.NODE,
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 412
diff changeset
151 ArtifactNamespaceContext.INSTANCE);
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
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diff changeset
152
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
153 if (sizeEl != null) {
719
035c0095b427 Draw correction curve again.
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parents: 695
diff changeset
154 String uri = ArtifactNamespaceContext.NAMESPACE_URI;
423
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
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diff changeset
155
719
035c0095b427 Draw correction curve again.
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parents: 695
diff changeset
156 String w = sizeEl.getAttributeNS(uri, "width");
035c0095b427 Draw correction curve again.
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parents: 695
diff changeset
157 String h = sizeEl.getAttributeNS(uri, "height");
423
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
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parents: 412
diff changeset
158
719
035c0095b427 Draw correction curve again.
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parents: 695
diff changeset
159 if (w.length() > 0 && h.length() > 0) {
423
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 412
diff changeset
160 try {
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 412
diff changeset
161 size[0] = Integer.parseInt(w);
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 412
diff changeset
162 size[1] = Integer.parseInt(h);
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 412
diff changeset
163 }
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 412
diff changeset
164 catch (NumberFormatException nfe) {
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 412
diff changeset
165 logger.warn("Wrong values for chart width/height.");
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 412
diff changeset
166 }
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 412
diff changeset
167 }
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 412
diff changeset
168 }
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 412
diff changeset
169
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 412
diff changeset
170 return size[0] > 0 && size[1] > 0 ? size : getDefaultSize();
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 412
diff changeset
171 }
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 412
diff changeset
172
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 412
diff changeset
173
1735
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1684
diff changeset
174 protected String getFormat() {
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1684
diff changeset
175 String format = (String) XMLUtils.xpath(
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1684
diff changeset
176 request,
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1684
diff changeset
177 XPATH_CHART_FORMAT,
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1684
diff changeset
178 XPathConstants.STRING,
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1684
diff changeset
179 ArtifactNamespaceContext.INSTANCE);
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1684
diff changeset
180
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1684
diff changeset
181 return format == null || format.length() == 0
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1684
diff changeset
182 ? DEFAULT_CHART_FORMAT
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1684
diff changeset
183 : format;
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1684
diff changeset
184 }
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1684
diff changeset
185
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1684
diff changeset
186
652
8fa4c5c9cd1a Charts are zoomed to a specified view if the attribute document for the chart creation contains an x and/or y range.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 423
diff changeset
187 protected Range getDomainAxisRange() {
719
035c0095b427 Draw correction curve again.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 695
diff changeset
188 Element xrange = (Element)XMLUtils.xpath(
652
8fa4c5c9cd1a Charts are zoomed to a specified view if the attribute document for the chart creation contains an x and/or y range.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 423
diff changeset
189 request,
8fa4c5c9cd1a Charts are zoomed to a specified view if the attribute document for the chart creation contains an x and/or y range.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 423
diff changeset
190 XPATH_CHART_X_RANGE,
8fa4c5c9cd1a Charts are zoomed to a specified view if the attribute document for the chart creation contains an x and/or y range.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 423
diff changeset
191 XPathConstants.NODE,
8fa4c5c9cd1a Charts are zoomed to a specified view if the attribute document for the chart creation contains an x and/or y range.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 423
diff changeset
192 ArtifactNamespaceContext.INSTANCE);
8fa4c5c9cd1a Charts are zoomed to a specified view if the attribute document for the chart creation contains an x and/or y range.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 423
diff changeset
193
8fa4c5c9cd1a Charts are zoomed to a specified view if the attribute document for the chart creation contains an x and/or y range.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 423
diff changeset
194 if (xrange == null) {
8fa4c5c9cd1a Charts are zoomed to a specified view if the attribute document for the chart creation contains an x and/or y range.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 423
diff changeset
195 return null;
8fa4c5c9cd1a Charts are zoomed to a specified view if the attribute document for the chart creation contains an x and/or y range.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 423
diff changeset
196 }
8fa4c5c9cd1a Charts are zoomed to a specified view if the attribute document for the chart creation contains an x and/or y range.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 423
diff changeset
197
719
035c0095b427 Draw correction curve again.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 695
diff changeset
198 String uri = ArtifactNamespaceContext.NAMESPACE_URI;
652
8fa4c5c9cd1a Charts are zoomed to a specified view if the attribute document for the chart creation contains an x and/or y range.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 423
diff changeset
199
719
035c0095b427 Draw correction curve again.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 695
diff changeset
200 String lower = xrange.getAttributeNS(uri, "from");
035c0095b427 Draw correction curve again.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 695
diff changeset
201 String upper = xrange.getAttributeNS(uri, "to");
652
8fa4c5c9cd1a Charts are zoomed to a specified view if the attribute document for the chart creation contains an x and/or y range.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 423
diff changeset
202
8fa4c5c9cd1a Charts are zoomed to a specified view if the attribute document for the chart creation contains an x and/or y range.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 423
diff changeset
203 logger.debug("FOUND X RANGE: " + lower + " -> " + upper);
8fa4c5c9cd1a Charts are zoomed to a specified view if the attribute document for the chart creation contains an x and/or y range.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 423
diff changeset
204
719
035c0095b427 Draw correction curve again.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 695
diff changeset
205 if (lower.length() > 0 && upper.length() > 0) {
652
8fa4c5c9cd1a Charts are zoomed to a specified view if the attribute document for the chart creation contains an x and/or y range.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 423
diff changeset
206 try {
8fa4c5c9cd1a Charts are zoomed to a specified view if the attribute document for the chart creation contains an x and/or y range.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 423
diff changeset
207 double from = Double.parseDouble(lower);
8fa4c5c9cd1a Charts are zoomed to a specified view if the attribute document for the chart creation contains an x and/or y range.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 423
diff changeset
208 double to = Double.parseDouble(upper);
8fa4c5c9cd1a Charts are zoomed to a specified view if the attribute document for the chart creation contains an x and/or y range.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 423
diff changeset
209
8fa4c5c9cd1a Charts are zoomed to a specified view if the attribute document for the chart creation contains an x and/or y range.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 423
diff changeset
210 if (from == 0 && to == 0) {
8fa4c5c9cd1a Charts are zoomed to a specified view if the attribute document for the chart creation contains an x and/or y range.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 423
diff changeset
211 logger.debug("No range specified. Lower and upper X == 0");
8fa4c5c9cd1a Charts are zoomed to a specified view if the attribute document for the chart creation contains an x and/or y range.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 423
diff changeset
212 return null;
8fa4c5c9cd1a Charts are zoomed to a specified view if the attribute document for the chart creation contains an x and/or y range.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 423
diff changeset
213 }
8fa4c5c9cd1a Charts are zoomed to a specified view if the attribute document for the chart creation contains an x and/or y range.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 423
diff changeset
214
8fa4c5c9cd1a Charts are zoomed to a specified view if the attribute document for the chart creation contains an x and/or y range.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 423
diff changeset
215 if (from > to) {
8fa4c5c9cd1a Charts are zoomed to a specified view if the attribute document for the chart creation contains an x and/or y range.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 423
diff changeset
216 double tmp = to;
8fa4c5c9cd1a Charts are zoomed to a specified view if the attribute document for the chart creation contains an x and/or y range.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 423
diff changeset
217 to = from;
8fa4c5c9cd1a Charts are zoomed to a specified view if the attribute document for the chart creation contains an x and/or y range.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 423
diff changeset
218 from = tmp;
8fa4c5c9cd1a Charts are zoomed to a specified view if the attribute document for the chart creation contains an x and/or y range.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 423
diff changeset
219 }
8fa4c5c9cd1a Charts are zoomed to a specified view if the attribute document for the chart creation contains an x and/or y range.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 423
diff changeset
220
8fa4c5c9cd1a Charts are zoomed to a specified view if the attribute document for the chart creation contains an x and/or y range.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 423
diff changeset
221 return new Range(from, to);
8fa4c5c9cd1a Charts are zoomed to a specified view if the attribute document for the chart creation contains an x and/or y range.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 423
diff changeset
222 }
8fa4c5c9cd1a Charts are zoomed to a specified view if the attribute document for the chart creation contains an x and/or y range.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 423
diff changeset
223 catch (NumberFormatException nfe) {
8fa4c5c9cd1a Charts are zoomed to a specified view if the attribute document for the chart creation contains an x and/or y range.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 423
diff changeset
224 logger.warn("Wrong values for domain axis range.");
8fa4c5c9cd1a Charts are zoomed to a specified view if the attribute document for the chart creation contains an x and/or y range.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 423
diff changeset
225 }
8fa4c5c9cd1a Charts are zoomed to a specified view if the attribute document for the chart creation contains an x and/or y range.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 423
diff changeset
226 }
8fa4c5c9cd1a Charts are zoomed to a specified view if the attribute document for the chart creation contains an x and/or y range.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 423
diff changeset
227
8fa4c5c9cd1a Charts are zoomed to a specified view if the attribute document for the chart creation contains an x and/or y range.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 423
diff changeset
228 return null;
8fa4c5c9cd1a Charts are zoomed to a specified view if the attribute document for the chart creation contains an x and/or y range.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 423
diff changeset
229 }
8fa4c5c9cd1a Charts are zoomed to a specified view if the attribute document for the chart creation contains an x and/or y range.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 423
diff changeset
230
8fa4c5c9cd1a Charts are zoomed to a specified view if the attribute document for the chart creation contains an x and/or y range.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 423
diff changeset
231
8fa4c5c9cd1a Charts are zoomed to a specified view if the attribute document for the chart creation contains an x and/or y range.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 423
diff changeset
232 protected Range getValueAxisRange() {
719
035c0095b427 Draw correction curve again.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 695
diff changeset
233 Element yrange = (Element)XMLUtils.xpath(
652
8fa4c5c9cd1a Charts are zoomed to a specified view if the attribute document for the chart creation contains an x and/or y range.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 423
diff changeset
234 request,
8fa4c5c9cd1a Charts are zoomed to a specified view if the attribute document for the chart creation contains an x and/or y range.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 423
diff changeset
235 XPATH_CHART_Y_RANGE,
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236 XPathConstants.NODE,
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237 ArtifactNamespaceContext.INSTANCE);
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238
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239 if (yrange == null) {
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240 return null;
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241 }
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242
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243 String uri = ArtifactNamespaceContext.NAMESPACE_URI;
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244
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245 String lower = yrange.getAttributeNS(uri, "from");
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246 String upper = yrange.getAttributeNS(uri, "to");
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247
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248 if (lower.length() > 0 && upper.length() > 0) {
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249 try {
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250 double from = Double.parseDouble(lower);
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251 double to = Double.parseDouble(upper);
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252
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253 if (from == 0 && to == 0) {
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254 logger.debug("No range specified. Lower and upper Y == 0");
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255 return null;
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256 }
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257
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258 if (from > to) {
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259 double tmp = to;
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260 to = from;
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261 from = tmp;
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262 }
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263
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264 return new Range(from, to);
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265 }
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266 catch (NumberFormatException nfe) {
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267 logger.warn("Wrong values for value axis range.");
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268 }
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269 }
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270
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271 return null;
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272 }
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273
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274
423
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275 /**
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276 * Returns the default size of a chart export as array.
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277 *
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278 * @return the default size of a chart as [width, height].
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279 */
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280 protected int[] getDefaultSize() {
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281 return new int[] { DEFAULT_CHART_WIDTH, DEFAULT_CHART_HEIGHT };
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282 }
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283
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284
1684
bdb05dc9b763 Bugfix: #353 Enabled chart's to be drawn with proper axes set even if no data is contained.
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285 public abstract void doOut(
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286 Artifact artifact,
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287 Facet facet,
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288 Document attr,
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289 boolean visible);
348
635af5381a4d Added an abstract OutGenerator that should be the base class for all generators which create charts.
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290
635af5381a4d Added an abstract OutGenerator that should be the base class for all generators which create charts.
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291 public abstract void generate() throws IOException;
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292 }
635af5381a4d Added an abstract OutGenerator that should be the base class for all generators which create charts.
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293 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org