Mercurial > mxd2map > mxd2map

annotate src/java/de/intevation/mxd/reader/FeatureLayerReader.java @ 118:39957898c694

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Improved top level exception handling and logging.
author Raimund Renkert <rrenkert@intevation.de>
date Thu, 16 Jun 2011 14:06:09 +0200
parents 6c3d880db7c5
children 5991c1f90f91
rev   line source
33
c51376f8e24c Separated converter components into packages.
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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.ILayer;
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6 import com.esri.arcgis.carto.FeatureLayer;
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395307e8b7ee First MapScript Writer that generates valid mapfiles.
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7 import com.esri.arcgis.geodatabase.FeatureClassName;
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8 import com.esri.arcgis.system.IName;
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0db6eacad0e6 Read SDE connection settings.
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9 import com.esri.arcgis.system.IPropertySet;
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77cfa8092611 Write FeatureLayer attributes to XML document.
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10 import org.w3c.dom.Element;
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11
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12 import de.intevation.mxd.utils.MapToXMLUtils;
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13 import java.io.IOException;
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14
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15 /**
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16 * Reads Layer information.
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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 FeatureLayerReader
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21 implements ILayerReader {
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22
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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(FeatureLayerReader.class);
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28
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29 /**
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30 * Privte member.
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31 */
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77cfa8092611 Write FeatureLayer attributes to XML document.
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32 private FeatureLayer layer;
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33 private MapToXMLUtils util;
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34
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35
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36 public FeatureLayerReader(ILayer layer)
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37 throws Exception {
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38 if(layer instanceof FeatureLayer) {
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39 this.layer = (FeatureLayer)layer;
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40 }
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41 else {
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42 throw new Exception("Not an instance of FeatureLayer: " +
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43 layer.getClass().toString());
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44 }
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45 }
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46
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47 /**
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48 * Setter for XML document helper.
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49 *
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50 * @param util The helper for storing map information.
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51 */
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52 public void setUtil(MapToXMLUtils util) {
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53 this.util = util;
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54 }
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55
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56 /**
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57 * Reads the Layer content.
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58 *
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59 * @return The layer XML element.
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60 */
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61 public Element read()
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62 throws IOException{
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63 logger.debug("read()");
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64 Element layerElement;
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65 try {
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66 layerElement = util.addLayer();
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67 }
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68 catch(Exception e) {
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69 logger.error("Failed to create DOM-Element for Layer.");
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70 throw new IOException(
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71 this.getClass()+toString() +
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72 "Error creating dom element");
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73 }
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74
117
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75 try {
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76 layerElement.setAttribute("name", layer.getName());
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77 }
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78 catch(IOException ioe) {
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79 logger.warn(
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80 "Could not read name." +
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81 " Setting name to \"default-layer\"");
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82 layerElement.setAttribute("name", "default-layer");
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83 }
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84
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85 try {
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86 layerElement.setAttribute("min_scale",
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87 String.valueOf(layer.getMinimumScale()));
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88 }
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89 catch(IOException ioe) {
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90 logger.warn(
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91 "Could not read minimum scale." +
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92 " Setting minimum scale to 0.");
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93 layerElement.setAttribute("min_scale", "0");
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94 }
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95
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96 try {
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97 layerElement.setAttribute("max_scale",
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98 String.valueOf(layer.getMaximumScale()));
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99 }
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100 catch(IOException ioe) {
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101 logger.warn(
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102 "Could not read maximum scale." +
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103 " Setting maximum scale to 0.");
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104 layerElement.setAttribute("max_scale", "0");
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105 }
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106
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107 try {
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108 if(layer.isVisible()) {
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109 layerElement.setAttribute("status", "on");
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110 }
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111 else {
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112 layerElement.setAttribute("status", "off");
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113 }
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114 }
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115 catch(IOException ioe) {
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116 logger.warn(
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117 "Could not read layer status." +
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118 " Setting layer status to \"on\".");
31
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119 layerElement.setAttribute("status", "on");
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120 }
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121
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122 int type = 0;
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123 try {
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124 type = layer.getShapeType();
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125 }
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126 catch(IOException ioe) {
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127 logger.warn(
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128 "Could not read shape type." +
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129 " Setting shape type to \"none\".");
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130 type = 0;
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131 }
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132 switch (type) {
62
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133 case 0: layerElement.setAttribute("type", "none"); break;
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134 case 1: layerElement.setAttribute("type", "point"); break;
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135 case 3: layerElement.setAttribute("type", "line"); break;
97
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136 case 4: layerElement.setAttribute("type", "polygon"); break;
40
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137 }
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138
117
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139 try {
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140 layerElement.setAttribute("definition_query",
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141 layer.getDefinitionExpression());
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142 }
117
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143 catch(IOException ioe) {
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144 logger.warn(
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145 "Could not read definition query." +
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146 " Setting empty definition query.");
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147 layerElement.setAttribute("definition_query", "");
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148 }
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149 try {
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150 IName fcn = layer.getDataSourceName();
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151 if(fcn instanceof FeatureClassName) {
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152 FeatureClassName name = (FeatureClassName)fcn;
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153 layerElement.setAttribute("data_source", name.getName());
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154 }
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155 else {
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156 logger.debug (
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157 "Unknown FeatureClass name:" +
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158 fcn.getClass().toString());
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159 }
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160 }
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161 catch(IOException ioe) {
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162 logger.warn("Could not read datasource. Stopped reading layer.");
118
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163 throw new IOException(
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164 this.getClass().toString() +
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165 "Error reading datasource.");
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166 }
31
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167
117
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168 try {
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169 String datatype = layer.getDataSourceType();
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170 if(datatype.equals("Shapefile Feature Class")) {
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171 layerElement.setAttribute("connection_type", "local");
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172 layerElement.setAttribute(
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173 "workspace",
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174 layer.getWorkspace().getPathName());
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175 }
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176 else if(datatype.equals("File Geodatabase Feature Class")){
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177 layerElement.setAttribute("connection_type", "ogr");
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178 layerElement.setAttribute("data", layer.getFeatureClass().getFeatureDataset().getName());
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179 layerElement.setAttribute(
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180 "workspace",
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181 layer.getWorkspace().getPathName());
100
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182
117
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183 }
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184 else if(datatype.equals("SDE Feature Class")) {
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185 IPropertySet set = layer.getWorkspace().getConnectionProperties();
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186 Object names[] = new Object[set.getCount()];
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187 Object prop[] = new Object[set.getCount()];
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188 set.getAllProperties(names, prop);
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189 layerElement.setAttribute("connection_type", "SDE");
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190 for(int i = 0; i < names.length; i++) {
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191 if(names[i] != null) {
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192 String[] prop_names = (String[])names[i];
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193 for(int j = 0; j < prop_names.length; j++) {
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194 layerElement.setAttribute(
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195 prop_names[j].toLowerCase(),
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196 set.getProperty(prop_names[j]).toString());
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197 }
113
0db6eacad0e6 Read SDE connection settings.
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198 }
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199 }
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200 }
100
bab3946a8bdc Read the connection settings for file geodatabase.
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201 }
117
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202 catch(Exception e) {
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203 logger.error(
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204 "Could not read layer datasource." +
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205 " Stopped reading layer.");
118
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206 throw new IOException(
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207 this.getClass().toString() +
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208 " Error reading data source.");
117
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209 }
31
40c0b4e5f91a Added utility class to store map attributes.
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diff changeset
210 return layerElement;
25
cbd67b1100d8 Initial commit of the first prototype.
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parents:
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211 }
cbd67b1100d8 Initial commit of the first prototype.
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212 }
cbd67b1100d8 Initial commit of the first prototype.
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parents:
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213 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
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