Mercurial > mxd2map

annotate src/java/de/intevation/mxd/reader/SimpleRendererReader.java @ 181:0bde090506f9

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Added comments.
author Raimund Renkert <rrenkert@intevation.de>
date Mon, 11 Jul 2011 14:28:38 +0200
parents a4ab239509f1
children df4e0946ef02
rev   line source
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diff changeset
1 package de.intevation.mxd.reader;
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2
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3 import org.apache.log4j.Logger;
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4
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5 import com.esri.arcgis.carto.IFeatureRenderer;
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6 import com.esri.arcgis.display.ISymbol;
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7 import com.esri.arcgis.carto.SimpleRenderer;
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8
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9 import org.w3c.dom.Element;
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10 import java.io.IOException;
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11
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12 import de.intevation.mxd.utils.MapToXMLUtils;
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13
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14 /**
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15 * Reads simple renderer information.
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16 *
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17 * @author <a href="mailto:raimund.renkert@intevation.de">Raimund Renkert</a>
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18 */
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19 public class SimpleRendererReader
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20 implements IRendererReader {
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21
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22 /**
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23 * The logger.
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24 */
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25 private static final Logger logger =
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26 Logger.getLogger(SimpleRendererReader.class);
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27
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28 /**
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29 * Private member.
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30 */
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31 private ISymbol symbol;
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32 private SimpleRenderer renderer;
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33 private Element layer;
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34 private MapToXMLUtils util;
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35
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36 /**
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37 * Constructor with renderer.
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38 *
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39 * @param renderer ArcGIS renderer used to draw symbols.
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40 */
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41 public SimpleRendererReader(IFeatureRenderer renderer)
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42 throws Exception {
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43 logger.debug("constructor()");
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44 if(renderer instanceof SimpleRenderer) {
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45 this.renderer = (SimpleRenderer)renderer;
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46 }
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47 else{
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48 throw new Exception ("Not an instance of SimpleRenderer!");
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49 }
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50 }
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51
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52 /**
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53 * Setter for the parent XML element.
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54 *
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55 * @param parent The XML parent node.
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56 */
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57 public void setParent(Element parent) {
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58 this.layer = parent;
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59 }
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60
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61 /**
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62 * Setter for the XML document helper.
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63 *
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64 * @param util The helper class for storing map information.
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65 */
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66 public void setUtil(MapToXMLUtils util) {
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67 this.util = util;
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68 }
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69
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70 /**
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71 * Reads the renderer attributes.
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72 *
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73 * @return The XML node.
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74 */
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75 public Element read() {
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76 logger.debug("read()");
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77 Element rendererElement;
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78 rendererElement = util.addRenderer(layer);
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79
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80 try {
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81 rendererElement.setAttribute("label", renderer.getLabel());
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82 }
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83 catch(IOException ioe) {
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84 logger.warn(
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85 "Could not read label name." +
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86 "Setting label name to \"default-label\"");
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87 rendererElement.setAttribute("label", "default-label");
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88 }
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89
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90 try {
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91 rendererElement.setAttribute(
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92 "description",
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93 renderer.getDescription());
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94 }
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95 catch(IOException ioe) {
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96 logger.warn("Could not read description.");
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97 }
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98
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99 try {
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100 symbol = renderer.getSymbol();
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101
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102 MarkerSymbolReader markerReader = new MarkerSymbolReader();
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103 LineSymbolReader lineReader = new LineSymbolReader();
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104 FillSymbolReader fillReader = new FillSymbolReader();
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105 if(markerReader.canRead(symbol)) {
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106 markerReader.setSymbol(symbol);
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107 markerReader.setUtil(util);
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108 markerReader.setParent(rendererElement);
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109 markerReader.read();
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110 }
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111 else if(lineReader.canRead(symbol)) {
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112 lineReader.setSymbol(symbol);
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113 lineReader.setUtil(util);
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114 lineReader.setParent(rendererElement);
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115 lineReader.read();
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116 }
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117 else if(fillReader.canRead(symbol)) {
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118 fillReader.setSymbol(symbol);
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119 fillReader.setUtil(util);
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120 fillReader.setParent(rendererElement);
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121 fillReader.read();
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122 }
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123 else {
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124 logger.debug(
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125 "No known Symbol type: " +
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126 symbol.getClass().toString());
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127 }
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128 }
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129 catch(Exception e) {
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130 logger.error("Could not read symbol. Stopped reading renderer.");
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131 }
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132 return layer;
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133 }
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134 }
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135 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
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