Mercurial > mxd2map

annotate src/java/de/intevation/mxd/reader/UniqueValueRendererReader.java @ 115:fb93f20478cc

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Improved exception handling for symbol reader.
author Raimund Renkert <rrenkert@intevation.de>
date Wed, 15 Jun 2011 16:48:42 +0200
parents 59e06c405a9a
children c8a1361ddd38
rev   line source
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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.UniqueValueRenderer;
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8
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9 import org.w3c.dom.Element;
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10
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11 import de.intevation.mxd.utils.MapToXMLUtils;
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12
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13 /**
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14 * Reads unique vaule renderer information.
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15 *
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16 * @author <a href="mailto:raimund.renkert@intevation.de">Raimund Renkert</a>
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17 */
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18 public class UniqueValueRendererReader
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19 implements IRendererReader {
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21 /**
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22 * The logger.
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23 */
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24 private static final Logger logger =
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25 Logger.getLogger(FeatureLayerReader.class);
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27 /**
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28 * Private Member.
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29 */
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30 private UniqueValueRenderer renderer;
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31 private Element layer;
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32 private MapToXMLUtils util;
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35 public UniqueValueRendererReader(IFeatureRenderer renderer)
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36 throws Exception {
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37 logger.debug("constructor()");
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38 if (renderer instanceof UniqueValueRenderer) {
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39 this.renderer = (UniqueValueRenderer)renderer;
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40 }
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41 else {
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42 throw new Exception ("Not an instance of UniqueValueRenderer.");
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43 }
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44 }
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46 /**
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47 * Setter for the parent XML element.
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48 *
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49 * @param parent The XML parent node.
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50 */
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51 public void setParent(Element parent) {
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52 this.layer = parent;
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53 }
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54
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55 /**
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56 * Setter for XML document helper.
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57 *
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58 * @param util The helper class for storing map information.
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59 */
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60 public void setUtil(MapToXMLUtils util) {
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61 this.util = util;
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62 }
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63
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64 /**
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65 * Reads the renderer attributes.
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66 *
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67 * @return The parent XML node.
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68 */
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69 public Element read()
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70 throws Exception {
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71 logger.debug("read()");
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72 for(int i = 0; i < renderer.getClassCount() - 1; i++) {
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73 Element rendererElement = util.addRenderer(layer);
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74
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75 String value = renderer.getValue(i);
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76 rendererElement.setAttribute("name", renderer.esri_getClass(i));
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77 rendererElement.setAttribute("description",
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78 renderer.getDescription(value));
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79 rendererElement.setAttribute("value", value);
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80 rendererElement.setAttribute("label", renderer.getLabel(value));
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81 rendererElement.setAttribute(
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82 "field_count",
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83 String.valueOf(renderer.getFieldCount()));
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84 for(int j = 0; j < renderer.getFieldCount(); j++) {
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85 rendererElement.setAttribute(
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86 "expression_field_" + j,
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87 renderer.getField(j));
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88 }
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89 rendererElement.setAttribute("expression_operator", "=");
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90
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91 ISymbol sym = renderer.getSymbol(value);
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92 MarkerSymbolReader markerReader = new MarkerSymbolReader();
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93 LineSymbolReader lineReader = new LineSymbolReader();
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94 FillSymbolReader fillReader = new FillSymbolReader();
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95 if(markerReader.canRead(sym)) {
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96 markerReader.setSymbol(sym);
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97 markerReader.setUtil(util);
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98 markerReader.setParent(rendererElement);
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99 markerReader.read();
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100 }
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101 else if(lineReader.canRead(sym)) {
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102 lineReader.setSymbol(sym);
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103 lineReader.setUtil(util);
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104 lineReader.setParent(rendererElement);
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105 lineReader.read();
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106 }
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107 else if(fillReader.canRead(sym)) {
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108 fillReader.setSymbol(sym);
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109 fillReader.setUtil(util);
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110 fillReader.setParent(rendererElement);
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111 fillReader.read();
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112 }
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113 else {
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114 logger.debug("Not a known symbol type: " +
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115 sym.getClass().toString());
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116 }
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117 }
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118 return layer;
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119 }
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120 }
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121 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
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