Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/exports/ChartGenerator.java @ 1948:65f9d707caff

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Removed superfluous imports. flys-artifacts/trunk@3340 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Wed, 30 Nov 2011 12:06:32 +0000
parents 21a4d2c677a1
children a7c437c9547e
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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1 package de.intevation.flys.exports;
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2
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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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6
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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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20
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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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24 import de.intevation.flys.model.River;
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25
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26 import de.intevation.flys.artifacts.WINFOArtifact;
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27 import de.intevation.artifactdatabase.state.ArtifactAndFacet;
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28
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29 import de.intevation.flys.artifacts.resources.Resources;
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30 import de.intevation.flys.utils.FLYSUtils;
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32
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33 /**
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34 * The base class for chart creation. It should provide some basic things that
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35 * equal in all chart types.
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36 *
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37 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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38 */
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39 public abstract class ChartGenerator implements OutGenerator {
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41 private static Logger logger = Logger.getLogger(ChartGenerator.class);
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42
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43 /** The default chart width, if no other width is set. */
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44 public static final int DEFAULT_CHART_WIDTH = 600;
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46 /** The default chart height, if no other height is set.*/
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47 public static final int DEFAULT_CHART_HEIGHT = 400;
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49 /** The default chart format, if no other height is set.*/
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50 public static final String DEFAULT_CHART_FORMAT = "png";
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51
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52 /** The XPath that points to the chart size of the incoming request
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53 * document.*/
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54 public static final String XPATH_CHART_SIZE =
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55 "/art:action/art:attributes/art:size";
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56
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57 public static final String XPATH_CHART_FORMAT =
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58 "/art:action/art:attributes/art:format/@art:value";
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60 public static final String XPATH_CHART_X_RANGE =
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61 "/art:action/art:attributes/art:xrange";
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63 public static final String XPATH_CHART_Y_RANGE =
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64 "/art:action/art:attributes/art:yrange";
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67 /** The document of the incoming out() request.*/
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68 protected Document request;
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69
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70 /** The output stream where the data should be written to.*/
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71 protected OutputStream out;
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72
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73 /** The CallContext object.*/
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74 protected CallContext context;
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76 /** The artifact that is used to decorate the chart with meta information.*/
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77 protected Artifact master;
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80 public void init(Document request, OutputStream out, CallContext context) {
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81 logger.debug("ChartGenerator.init");
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82
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83 this.request = request;
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84 this.out = out;
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85 this.context = context;
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86 }
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89 public void setMasterArtifact(Artifact master) {
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90 this.master = master;
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91 }
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94 protected Locale getLocale() {
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95 CallMeta meta = context.getMeta();
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96 PreferredLocale[] prefs = meta.getLanguages();
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97
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98 int len = prefs != null ? prefs.length : 0;
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99
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100 Locale[] locales = new Locale[len];
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101
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102 for (int i = 0; i < len; i++) {
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103 locales[i] = prefs[i].getLocale();
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104 }
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106 return meta.getPreferredLocale(locales);
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107 }
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108
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109
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110 protected String msg(String key, String def) {
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111 return Resources.getMsg(context.getMeta(), key, def);
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112 }
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115 protected String msg(String key, String def, Object[] args) {
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116 return Resources.getMsg(context.getMeta(), key, def, args);
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 408
diff changeset
117 }
046bd86ae41d Improved the OutGenerator interface to set a master artifact for the out generation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 408
diff changeset
118
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.
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parents: 408
diff changeset
120 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
121 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
122
1104
9383a4608d9f Use FLYSUtils.getRiver instead of WINFOArtifact.getRiver.
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parents: 1095
diff changeset
123 River river = FLYSUtils.getRiver(flys);
9383a4608d9f Use FLYSUtils.getRiver instead of WINFOArtifact.getRiver.
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parents: 1095
diff changeset
124 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
125 }
046bd86ae41d Improved the OutGenerator interface to set a master artifact for the out generation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 408
diff changeset
126
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>
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diff changeset
128 protected double[] getRange() {
1055
61c051e53f9b Moved WINFO specific stuff from FLYS into WINFO artifact.
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diff changeset
129 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
130
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f465785ed1ae Refactored the code to fetch the km range/locations into a utility class.
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diff changeset
131 return FLYSUtils.getKmRange(flys);
412
046bd86ae41d Improved the OutGenerator interface to set a master artifact for the out generation.
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diff changeset
132 }
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
133
046bd86ae41d Improved the OutGenerator interface to set a master artifact for the out generation.
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diff changeset
134
423
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
135 /**
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
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diff changeset
136 * 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
137 * 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
138 *
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
139 * @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
140 * 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
141 */
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
142 protected int[] getSize() {
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diff changeset
143 int[] size = new int[2];
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
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diff changeset
144
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035c0095b427 Draw correction curve again.
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parents: 695
diff changeset
145 Element sizeEl = (Element)XMLUtils.xpath(
423
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
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parents: 412
diff changeset
146 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
147 XPATH_CHART_SIZE,
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
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diff changeset
148 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
149 ArtifactNamespaceContext.INSTANCE);
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diff changeset
150
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
151 if (sizeEl != null) {
719
035c0095b427 Draw correction curve again.
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parents: 695
diff changeset
152 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
153
719
035c0095b427 Draw correction curve again.
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parents: 695
diff changeset
154 String w = sizeEl.getAttributeNS(uri, "width");
035c0095b427 Draw correction curve again.
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parents: 695
diff changeset
155 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
156
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035c0095b427 Draw correction curve again.
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parents: 695
diff changeset
157 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
158 try {
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
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diff changeset
159 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
160 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
161 }
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 412
diff changeset
162 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
163 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
164 }
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 412
diff changeset
165 }
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.
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diff changeset
168 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
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
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 412
diff changeset
171
1735
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1684
diff changeset
172 protected String getFormat() {
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1684
diff changeset
173 String format = (String) XMLUtils.xpath(
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1684
diff changeset
174 request,
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1684
diff changeset
175 XPATH_CHART_FORMAT,
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1684
diff changeset
176 XPathConstants.STRING,
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1684
diff changeset
177 ArtifactNamespaceContext.INSTANCE);
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1684
diff changeset
178
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1684
diff changeset
179 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
180 ? DEFAULT_CHART_FORMAT
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1684
diff changeset
181 : format;
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1684
diff changeset
182 }
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1684
diff changeset
183
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1684
diff changeset
184
1944
21a4d2c677a1 Changed doOut signature, side effect from blackboard feature (to come).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1768
diff changeset
185 /**
21a4d2c677a1 Changed doOut signature, side effect from blackboard feature (to come).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1768
diff changeset
186 * Get Range of Domain ("X"-) Axis from request.
21a4d2c677a1 Changed doOut signature, side effect from blackboard feature (to come).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1768
diff changeset
187 */
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
188 protected Range getDomainAxisRange() {
719
035c0095b427 Draw correction curve again.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 695
diff changeset
189 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
190 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
191 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
192 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
193 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
194
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 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
196 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
197 }
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
198
719
035c0095b427 Draw correction curve again.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 695
diff changeset
199 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
200
719
035c0095b427 Draw correction curve again.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 695
diff changeset
201 String lower = xrange.getAttributeNS(uri, "from");
035c0095b427 Draw correction curve again.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 695
diff changeset
202 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
203
719
035c0095b427 Draw correction curve again.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 695
diff changeset
204 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
205 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
206 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
207 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
208
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 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
210 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
211 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
212 }
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 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
215 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
216 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
217 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
218 }
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 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
221 }
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 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
223 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
224 }
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 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
228 }
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 protected Range getValueAxisRange() {
719
035c0095b427 Draw correction curve again.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 695
diff changeset
232 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
233 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
234 XPATH_CHART_Y_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
235 XPathConstants.NODE,
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236 ArtifactNamespaceContext.INSTANCE);
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237
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238 if (yrange == null) {
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239 return null;
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240 }
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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
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246 String lower = yrange.getAttributeNS(uri, "from");
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247 String upper = yrange.getAttributeNS(uri, "to");
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248
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249 if (lower.length() > 0 && upper.length() > 0) {
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250 try {
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251 double from = Double.parseDouble(lower);
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252 double to = Double.parseDouble(upper);
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253
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254 if (from == 0 && to == 0) {
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255 logger.debug("No range specified. Lower and upper Y == 0");
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256 return null;
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257 }
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258
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259 return from > to
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260 ? new Range(to, from)
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261 : new Range(from, to);
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262 }
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263 catch (NumberFormatException nfe) {
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264 logger.warn("Wrong values for value axis range.");
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265 }
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266 }
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267
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268 return null;
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269 }
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270
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271
423
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272 /**
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273 * Returns the default size of a chart export as array.
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274 *
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275 * @return the default size of a chart as [width, height].
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276 */
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277 protected int[] getDefaultSize() {
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278 return new int[] { DEFAULT_CHART_WIDTH, DEFAULT_CHART_HEIGHT };
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279 }
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280
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281
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bdb05dc9b763 Bugfix: #353 Enabled chart's to be drawn with proper axes set even if no data is contained.
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282 public abstract void doOut(
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283 ArtifactAndFacet bundle,
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284 Document attr,
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285 boolean visible);
348
635af5381a4d Added an abstract OutGenerator that should be the base class for all generators which create charts.
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286
635af5381a4d Added an abstract OutGenerator that should be the base class for all generators which create charts.
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287 public abstract void generate() throws IOException;
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288 }
635af5381a4d Added an abstract OutGenerator that should be the base class for all generators which create charts.
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289 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org