Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/exports/ChartGenerator.java @ 2141:79a94c4171cb

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Cosmetics. flys-artifacts/trunk@3719 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Felix Wolfsteller <felix.wolfsteller@intevation.de>
date Thu, 19 Jan 2012 13:01:33 +0000
parents e8fc770d2f8c
children 958a10e2e246
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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035c0095b427 Draw correction curve again.
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12 import org.w3c.dom.Element;
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13
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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.artifactdatabase.state.ArtifactAndFacet;
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25 import de.intevation.artifactdatabase.state.Settings;
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27 import de.intevation.flys.model.River;
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28
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29 import de.intevation.flys.artifacts.FLYSArtifact;
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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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32
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33
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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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41
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42 private static Logger logger = Logger.getLogger(ChartGenerator.class);
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43
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44 /** The default chart width, if no other width is set. */
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45 public static final int DEFAULT_CHART_WIDTH = 600;
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46
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47 /** The default chart height, if no other height is set.*/
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48 public static final int DEFAULT_CHART_HEIGHT = 400;
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49
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50 /** The default chart format, if no other height is set.*/
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51 public static final String DEFAULT_CHART_FORMAT = "png";
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52
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53 /** The XPath that points to the chart size of the incoming request
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54 * document.*/
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55 public static final String XPATH_CHART_SIZE =
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56 "/art:action/art:attributes/art:size";
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57
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58 public static final String XPATH_CHART_FORMAT =
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59 "/art:action/art:attributes/art:format/@art:value";
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60
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61 public static final String XPATH_CHART_X_RANGE =
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62 "/art:action/art:attributes/art:xrange";
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63
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64 public static final String XPATH_CHART_Y_RANGE =
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65 "/art:action/art:attributes/art:yrange";
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66
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68 /** The document of the incoming out() request.*/
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69 protected Document request;
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70
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71 /** The output stream where the data should be written to.*/
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72 protected OutputStream out;
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73
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74 /** The CallContext object.*/
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75 protected CallContext context;
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76
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77 /** The artifact that is used to decorate the chart with meta information.*/
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78 protected Artifact master;
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79
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80 /** The settings that should be used during output creation.*/
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81 protected Settings settings;
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82
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83
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84 public void init(Document request, OutputStream out, CallContext context) {
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85 logger.debug("ChartGenerator.init");
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86
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87 this.request = request;
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88 this.out = out;
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89 this.context = context;
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90 }
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91
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92
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93 public void setMasterArtifact(Artifact master) {
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94 this.master = master;
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95 }
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96
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97
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98 @Override
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99 public void setSettings(Settings settings) {
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100 this.settings = settings;
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101 }
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102
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103
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104 /**
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105 * Returns the chart title provided by <i>settings</i>.
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106 *
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107 * @param settings A ChartSettings object.
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108 *
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109 * @return the title provided by <i>settings</i> or null if no
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110 * <i>ChartSection</i> is provided by <i>settings</i>.
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111 *
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112 * @throws NullPointerException if <i>settings</i> is null.
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113 */
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114 public String getChartTitle(ChartSettings settings) {
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115 ChartSection cs = settings.getChartSection();
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116 return cs != null ? cs.getTitle() : null;
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117 }
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118
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119
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120 /**
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121 * Returns the chart subtitle provided by <i>settings</i>.
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122 *
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123 * @param settings A ChartSettings object.
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124 *
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125 * @return the subtitle provided by <i>settings</i> or null if no
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126 * <i>ChartSection</i> is provided by <i>settings</i>.
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127 *
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128 * @throws NullPointerException if <i>settings</i> is null.
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129 */
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130 public String getChartSubtitle(ChartSettings settings) {
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131 ChartSection cs = settings.getChartSection();
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132 return cs != null ? cs.getSubtitle() : null;
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133 }
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134
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135
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136 /**
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137 * Returns a boolean object that determines if the chart grid should be
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138 * visible or not. This information needs to be provided by <i>settings</i>,
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139 * otherweise the default is true.
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140 *
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141 * @param settings A ChartSettings object.
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142 *
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143 * @return true, if the chart grid should be visible otherwise false.
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144 *
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145 * @throws NullPointerException if <i>settings</i> is null.
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146 */
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147 public boolean isGridVisible(ChartSettings settings) {
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148 ChartSection cs = settings.getChartSection();
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149 Boolean displayGrid = cs.getDisplayGrid();
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150
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151 return displayGrid != null ? displayGrid : true;
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152 }
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153
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154
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155 /**
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156 * Returns a boolean object that determines if the chart legend should be
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157 * visible or not. This information needs to be provided by <i>settings</i>,
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158 * otherwise the default is true.
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159 *
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160 * @param settings A ChartSettings object.
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161 *
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162 * @return true, if the chart legend should be visible otherwise false.
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163 *
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164 * @throws NullPointerException if <i>settings</i> is null.
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165 */
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166 public boolean isLegendVisible(ChartSettings settings) {
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167 LegendSection ls = settings.getLegendSection();
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168 Boolean displayLegend = ls.getVisibility();
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169
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170 return displayLegend != null ? displayLegend : true;
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171 }
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172
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173
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174 /**
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175 * Returns the legend font size specified in <i>settings</i> or null if no
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176 * <i>LegendSection</i> is provided by <i>settings</i>.
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177 *
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178 * @param settings A ChartSettings object.
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179 *
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180 * @return the legend font size or null.
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181 *
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182 * @throws NullPointerException if <i>settings</i> is null.
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183 */
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184 public Integer getLegendFontSize(ChartSettings settings) {
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185 LegendSection ls = settings.getLegendSection();
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186 return ls != null ? ls.getFontSize() : null;
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187 }
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188
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189
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190 protected Locale getLocale() {
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191 CallMeta meta = context.getMeta();
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192 PreferredLocale[] prefs = meta.getLanguages();
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193
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194 int len = prefs != null ? prefs.length : 0;
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195
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196 Locale[] locales = new Locale[len];
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197
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198 for (int i = 0; i < len; i++) {
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199 locales[i] = prefs[i].getLocale();
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200 }
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201
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202 return meta.getPreferredLocale(locales);
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203 }
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204
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205
408
fc3ac59c3c8b Enabled i18n support for charts.
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206 protected String msg(String key, String def) {
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207 return Resources.getMsg(context.getMeta(), key, def);
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208 }
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209
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210
412
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211 protected String msg(String key, String def, Object[] args) {
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212 return Resources.getMsg(context.getMeta(), key, def, args);
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213 }
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214
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215
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216 protected String getRiverName() {
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217 FLYSArtifact flys = (FLYSArtifact) master;
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218
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219 River river = FLYSUtils.getRiver(flys);
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220 return (river != null) ? river.getName() : "";
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221 }
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222
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223
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224 protected double[] getRange() {
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225 FLYSArtifact flys = (FLYSArtifact) master;
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226
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227 return FLYSUtils.getKmRange(flys);
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228 }
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229
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230
423
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231 /**
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232 * Returns the size of a chart export as array which has been specified by
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233 * the incoming request document.
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234 *
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diff changeset
235 * @return the size of a chart as [width, height] or null if no width or
49b7c2b1a6a7 Make use of the export size for charts specified in ChartSettings if a chart export is requested.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2047
diff changeset
236 * height are given in the request document.
423
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 412
diff changeset
237 */
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 412
diff changeset
238 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
239 int[] size = new int[2];
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 412
diff changeset
240
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 695
diff changeset
241 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
242 request,
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 412
diff changeset
243 XPATH_CHART_SIZE,
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 412
diff changeset
244 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
245 ArtifactNamespaceContext.INSTANCE);
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 412
diff changeset
246
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 412
diff changeset
247 if (sizeEl != null) {
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035c0095b427 Draw correction curve again.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 695
diff changeset
248 String uri = ArtifactNamespaceContext.NAMESPACE_URI;
423
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 412
diff changeset
249
719
035c0095b427 Draw correction curve again.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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diff changeset
250 String w = sizeEl.getAttributeNS(uri, "width");
035c0095b427 Draw correction curve again.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 695
diff changeset
251 String h = sizeEl.getAttributeNS(uri, "height");
423
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 412
diff changeset
252
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035c0095b427 Draw correction curve again.
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parents: 695
diff changeset
253 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
254 try {
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 412
diff changeset
255 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
256 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
257 }
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 412
diff changeset
258 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
259 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
260 }
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 412
diff changeset
261 }
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 412
diff changeset
262 }
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 412
diff changeset
263
2057
49b7c2b1a6a7 Make use of the export size for charts specified in ChartSettings if a chart export is requested.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2047
diff changeset
264 return size[0] > 0 && size[1] > 0 ? size : null;
423
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 412
diff changeset
265 }
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 412
diff changeset
266
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 412
diff changeset
267
1735
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1684
diff changeset
268 protected String getFormat() {
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1684
diff changeset
269 String format = (String) XMLUtils.xpath(
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1684
diff changeset
270 request,
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1684
diff changeset
271 XPATH_CHART_FORMAT,
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1684
diff changeset
272 XPathConstants.STRING,
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1684
diff changeset
273 ArtifactNamespaceContext.INSTANCE);
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1684
diff changeset
274
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1684
diff changeset
275 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
276 ? DEFAULT_CHART_FORMAT
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1684
diff changeset
277 : format;
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1684
diff changeset
278 }
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1684
diff changeset
279
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1684
diff changeset
280
1944
21a4d2c677a1 Changed doOut signature, side effect from blackboard feature (to come).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1768
diff changeset
281 /**
21a4d2c677a1 Changed doOut signature, side effect from blackboard feature (to come).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1768
diff changeset
282 * 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
283 */
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
284 protected Range getDomainAxisRange() {
719
035c0095b427 Draw correction curve again.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 695
diff changeset
285 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
286 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
287 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
288 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
289 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
290
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
291 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
292 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
293 }
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
294
719
035c0095b427 Draw correction curve again.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 695
diff changeset
295 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
296
719
035c0095b427 Draw correction curve again.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 695
diff changeset
297 String lower = xrange.getAttributeNS(uri, "from");
035c0095b427 Draw correction curve again.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 695
diff changeset
298 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
299
719
035c0095b427 Draw correction curve again.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 695
diff changeset
300 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
301 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
302 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
303 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
304
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
305 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
306 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
307 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
308 }
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
309
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
310 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
311 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
312 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
313 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
314 }
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
315
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
316 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
317 }
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
318 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
319 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
320 }
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
321 }
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
322
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
323 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
324 }
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
325
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
326
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
327 protected Range getValueAxisRange() {
719
035c0095b427 Draw correction curve again.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 695
diff changeset
328 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
329 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
330 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
331 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
332 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
333
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
334 if (yrange == 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
335 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
336 }
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
337
1944
21a4d2c677a1 Changed doOut signature, side effect from blackboard feature (to come).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1768
diff changeset
338
719
035c0095b427 Draw correction curve again.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 695
diff changeset
339 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
340
1944
21a4d2c677a1 Changed doOut signature, side effect from blackboard feature (to come).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1768
diff changeset
341
719
035c0095b427 Draw correction curve again.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 695
diff changeset
342 String lower = yrange.getAttributeNS(uri, "from");
035c0095b427 Draw correction curve again.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 695
diff changeset
343 String upper = yrange.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
344
719
035c0095b427 Draw correction curve again.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 695
diff changeset
345 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
346 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
347 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
348 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
349
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
350 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
351 logger.debug("No range specified. Lower and upper Y == 0");
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352 return null;
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353 }
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354
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21a4d2c677a1 Changed doOut signature, side effect from blackboard feature (to come).
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355 return from > to
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356 ? new Range(to, from)
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357 : new Range(from, to);
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358 }
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359 catch (NumberFormatException nfe) {
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360 logger.warn("Wrong values for value axis range.");
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361 }
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362 }
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363
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364 return null;
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365 }
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366
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367
423
bab867fb37e8 Charts are generated using the size defined in the incoming request document.
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parents: 412
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368 /**
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369 * Returns the default size of a chart export as array.
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370 *
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371 * @return the default size of a chart as [width, height].
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372 */
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373 protected int[] getDefaultSize() {
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374 return new int[] { DEFAULT_CHART_WIDTH, DEFAULT_CHART_HEIGHT };
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375 }
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376
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377
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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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parents: 1645
diff changeset
378 public abstract void doOut(
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21a4d2c677a1 Changed doOut signature, side effect from blackboard feature (to come).
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379 ArtifactAndFacet bundle,
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380 Document attr,
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diff changeset
381 boolean visible);
348
635af5381a4d Added an abstract OutGenerator that should be the base class for all generators which create charts.
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382
635af5381a4d Added an abstract OutGenerator that should be the base class for all generators which create charts.
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383 public abstract void generate() throws IOException;
1979
a7c437c9547e Added a getSettings() operation to OutGenerator - FLYSArtifactCollection will now evaluate all available Outputs and create initial Settings using OutGenerators if the Settings for an Output is missing.
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parents: 1948
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384
a7c437c9547e Added a getSettings() operation to OutGenerator - FLYSArtifactCollection will now evaluate all available Outputs and create initial Settings using OutGenerators if the Settings for an Output is missing.
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parents: 1948
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385
a7c437c9547e Added a getSettings() operation to OutGenerator - FLYSArtifactCollection will now evaluate all available Outputs and create initial Settings using OutGenerators if the Settings for an Output is missing.
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diff changeset
386 /**
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387 * Returns an instance of <i>EmptySettings</i> currently!
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388 *
a7c437c9547e Added a getSettings() operation to OutGenerator - FLYSArtifactCollection will now evaluate all available Outputs and create initial Settings using OutGenerators if the Settings for an Output is missing.
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389 * @return an instance of <i>EmptySettings</i>.
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390 */
a7c437c9547e Added a getSettings() operation to OutGenerator - FLYSArtifactCollection will now evaluate all available Outputs and create initial Settings using OutGenerators if the Settings for an Output is missing.
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diff changeset
391 public Settings getSettings() {
2047
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diff changeset
392 return settings != null ? settings : new EmptySettings();
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393 }
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diff changeset
394
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395
0318fa6f0844 Make use of first attributes specified in the ChartSettings. NOTE: work is still in progress.
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diff changeset
396 /**
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diff changeset
397 * Returns the <i>settings</i> as <i>ChartSettings</i>.
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diff changeset
398 *
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parents: 1979
diff changeset
399 * @return the <i>settings</i> as <i>ChartSettings</i> or null, if
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diff changeset
400 * <i>settings</i> is not an instance of <i>ChartSettings</i>.
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parents: 1979
diff changeset
401 */
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parents: 1979
diff changeset
402 public ChartSettings getChartSettings() {
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parents: 1979
diff changeset
403 if (settings instanceof ChartSettings) {
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parents: 1979
diff changeset
404 return (ChartSettings) settings;
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parents: 1979
diff changeset
405 }
0318fa6f0844 Make use of first attributes specified in the ChartSettings. NOTE: work is still in progress.
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parents: 1979
diff changeset
406
0318fa6f0844 Make use of first attributes specified in the ChartSettings. NOTE: work is still in progress.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1979
diff changeset
407 return null;
1979
a7c437c9547e Added a getSettings() operation to OutGenerator - FLYSArtifactCollection will now evaluate all available Outputs and create initial Settings using OutGenerators if the Settings for an Output is missing.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1948
diff changeset
408 }
348
635af5381a4d Added an abstract OutGenerator that should be the base class for all generators which create charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
409 }
635af5381a4d Added an abstract OutGenerator that should be the base class for all generators which create charts.
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parents:
diff changeset
410 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org