Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/exports/ChartInfoGenerator.java @ 8856:5e38e2924c07 3.2.x

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Fix code style.
author Tom Gottfried <tom@intevation.de>
date Thu, 18 Jan 2018 20:12:01 +0100
parents e4606eae8ea5
children 1cc7653ca84f 0a5239a1e46e
rev   line source
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1 /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
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2 * Software engineering by Intevation GmbH
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3 *
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4 * This file is Free Software under the GNU AGPL (>=v3)
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5 * and comes with ABSOLUTELY NO WARRANTY! Check out the
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6 * documentation coming with Dive4Elements River for details.
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7 */
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8
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9 package org.dive4elements.river.exports;
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10
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11 import org.dive4elements.river.collections.D4EArtifactCollection;
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12 import org.dive4elements.river.java2d.NOPGraphics2D;
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13 import org.dive4elements.river.themes.ThemeDocument;
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14
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15 import java.io.IOException;
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16 import java.io.OutputStream;
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17
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18 import java.awt.Transparency;
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19 import java.awt.Graphics2D;
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20
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21 import java.awt.geom.Rectangle2D;
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22
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23 import java.awt.image.BufferedImage;
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24
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25 import org.w3c.dom.Document;
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26
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27 import org.apache.log4j.Logger;
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28
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29 import org.jfree.chart.ChartRenderingInfo;
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30 import org.jfree.chart.JFreeChart;
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31
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32 import org.dive4elements.artifacts.Artifact;
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33 import org.dive4elements.artifacts.CallContext;
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34
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35 import org.dive4elements.artifactdatabase.state.ArtifactAndFacet;
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36 import org.dive4elements.artifactdatabase.state.Settings;
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37
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38 import org.dive4elements.artifacts.common.utils.XMLUtils;
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39
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40
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41 /**
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42 * An OutGenerator that generates meta information for charts. A concrete
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43 * ChartInfoGenerator need to instantiate a concrete ChartGenerator and dispatch
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44 * the methods to that instance. The only thing this ChartInfoGenerator needs
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45 * to, is to overwrite the generate() method which doesn't write the chart image
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46 * to the OutputStream but a Document that contains some meta information of the
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47 * created chart.
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48 *
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49 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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50 */
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51 public abstract class ChartInfoGenerator implements OutGenerator {
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52
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53 public static final boolean USE_NOP_GRAPHICS =
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54 Boolean.getBoolean("info.rendering.nop.graphics");
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55
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56 /** The log used in this generator.*/
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57 private static Logger log =
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58 Logger.getLogger(ChartInfoGenerator.class);
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59
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60
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61 /** The OutGenerator that creates the charts.*/
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62 protected ChartGenerator generator;
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63
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64 protected OutputStream out;
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65
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66
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67
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68 public ChartInfoGenerator(ChartGenerator generator) {
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69 this.generator = generator;
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70 }
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71
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72 public void setup(Object config) {
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73 log.debug("ChartInfoGenerator.setup");
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74 }
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75
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76
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77 /**
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78 * Dispatches the operation to the instantiated generator.
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79 *
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80 * @param request
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81 * @param out
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82 * @param context
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83 */
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84 public void init(
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85 String outName,
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86 Document request,
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87 OutputStream out,
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88 CallContext context
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89 ) {
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90 this.out = out;
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91
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92 generator.init(outName, request, out, context);
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93 }
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94
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95
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96 /**
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97 * Dispatches the operation to the instantiated generator.
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98 *
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99 * @param master The master artifact
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100 */
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101 public void setMasterArtifact(Artifact master) {
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102 generator.setMasterArtifact(master);
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103 }
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104
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105
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106 /**
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107 * Dispatches the operation to the instantiated generator.
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108 *
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109 * @param collection The collection.
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110 */
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111 public void setCollection(D4EArtifactCollection collection) {
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112 generator.setCollection(collection);
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113 }
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114
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115
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116 /**
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117 * Dispatches the operation to the instantiated generator.
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118 */
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119 @Override
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120 public void doOut(
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121 ArtifactAndFacet artifactFacet,
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122 ThemeDocument attr,
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123 boolean visible
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124 ) {
1945
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125 generator.doOut(artifactFacet, attr, visible);
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126 }
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127
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128
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129 /**
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130 * This method generates the chart using a concrete ChartGenerator but
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131 * doesn't write the chart itself to the OutputStream but a Document that
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132 * contains meta information of the created chart.
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133 */
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134 @Override
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135 public void generate()
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136 throws IOException
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137 {
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138 log.debug("ChartInfoGenerator.generate");
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139
653
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140 JFreeChart chart = generator.generateChart();
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141
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142 int[] size = generator.getSize();
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143 if (size == null) {
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144 size = generator.getDefaultSize();
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145 }
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146
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147 ChartRenderingInfo info = new ChartRenderingInfo();
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148
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149 long startTime = System.currentTimeMillis();
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150
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151 if (USE_NOP_GRAPHICS) {
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152 BufferedImage image =
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153 new BufferedImage(size[0], size[1], Transparency.BITMASK);
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154
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155 Graphics2D g2d = image.createGraphics();
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156 Graphics2D nop = new NOPGraphics2D(g2d);
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157
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158 chart.draw(
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159 nop,
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160 new Rectangle2D.Double(0, 0, size[0], size[1]),
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161 null,
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162 info);
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163
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164 nop.dispose();
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165 }
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166 else {
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167 chart.createBufferedImage(
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168 size[0], size[1], Transparency.BITMASK, info);
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169 }
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170
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171 long stopTime = System.currentTimeMillis();
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172
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173 if (log.isDebugEnabled()) {
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174 log.debug("Rendering info took: " +
1752
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175 (stopTime-startTime) + "ms");
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176 }
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177
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178
673
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179 InfoGeneratorHelper helper = new InfoGeneratorHelper(generator);
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180 Document doc = helper.createInfoDocument(chart, info);
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181
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182 XMLUtils.toStream(doc, out);
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183 }
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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184
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185
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186 /**
2047
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187 * A proxy method which calls <i>generator</i>.getSettings() and returns its
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188 * return value.
1979
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189 *
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190 * @return a Settings object provided by <i>generator</i>.
1979
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diff changeset
191 */
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192 @Override
1979
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193 public Settings getSettings() {
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194 return generator.getSettings();
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195 }
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196
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197
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198 /**
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diff changeset
199 * A proxy method which calls <i>generator</i>.setSettings().
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diff changeset
200 *
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parents: 1979
diff changeset
201 * @param settings A settings object for the <i>generator</i>.
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diff changeset
202 */
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diff changeset
203 @Override
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diff changeset
204 public void setSettings(Settings settings) {
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diff changeset
205 generator.setSettings(settings);
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
diff changeset
206 }
647
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207 }
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208 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org