Mercurial > mxd2map

annotate src/java/de/intevation/mxd/reader/ClassBreakRendererReader.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
33
c51376f8e24c Separated converter components into packages.
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1 package de.intevation.mxd.reader;
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3 import java.lang.Exception;
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4
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5 import org.apache.log4j.Logger;
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6
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7 import com.esri.arcgis.carto.IFeatureRenderer;
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8 import com.esri.arcgis.carto.ClassBreaksRenderer;
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9 import com.esri.arcgis.display.ISymbol;
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11 import org.w3c.dom.Element;
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12
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13 import de.intevation.mxd.utils.MapToXMLUtils;
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14
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15 /**
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16 * Reads the ClassBreaksRender Object Attributes.
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17 *
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18 * @author <a href="mailto:raimund.renkert@intevation.de">Raimund Renkert</a>
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19 */
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20 public class ClassBreakRendererReader
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21 implements IRendererReader {
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23 /**
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24 * The logger.
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25 */
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26 private static final Logger logger =
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27 Logger.getLogger(ClassBreakRendererReader.class);
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29 /**
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30 * Private member.
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31 */
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32 private ClassBreaksRenderer renderer;
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33 private Element layer;
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34 private MapToXMLUtils util;
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36
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37 public ClassBreakRendererReader(IFeatureRenderer renderer)
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38 throws Exception {
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39 logger.debug("contructor()");
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40 if(renderer instanceof ClassBreaksRenderer)
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41 this.renderer = (ClassBreaksRenderer)renderer;
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42 else
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43 throw new Exception("Not a ClassBreaksRenderer!");
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44 }
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45
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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 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
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73 for(int i = 0; i < renderer.getBreakCount(); i++){
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74 Element rendererElement = util.addRenderer(layer);
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75 rendererElement.setAttribute("value",
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76 String.valueOf(renderer.getBreak(i)));
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77 rendererElement.setAttribute(
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78 "field_count",
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79 String.valueOf(renderer.getFieldCount()));
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80 for(int j = 0; j < renderer.getFieldCount(); j++) {
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81 rendererElement.setAttribute(
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82 "expression_field_" + j,
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83 renderer.getField(j));
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84
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85 }
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86 rendererElement.setAttribute(
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87 "min_value",
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88 String.valueOf(renderer.getMinimumBreak()));
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89 rendererElement.setAttribute("expression_operator", "<=");
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90
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91 ISymbol sym = renderer.getSymbol(i);
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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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