Mercurial > mxd2map

annotate src/java/de/intevation/mxd/reader/FeatureLayerReader.java @ 117:6c3d880db7c5

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Improved exception handling for layer reader.
author Raimund Renkert <rrenkert@intevation.de>
date Thu, 16 Jun 2011 12:05:34 +0200
parents 0db6eacad0e6
children 39957898c694
rev   line source
33
c51376f8e24c Separated converter components into packages.
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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.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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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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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 logger.debug("read()");
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63 Element layerElement;
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64 try {
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65 layerElement = util.addLayer();
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66 }
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67 catch(Exception e) {
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68 logger.error("Failed to create DOM-Element for Layer.");
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69 return null;
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70 }
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71
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72 try {
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73 layerElement.setAttribute("name", layer.getName());
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74 }
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75 catch(IOException ioe) {
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76 logger.warn(
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77 "Could not read name." +
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78 " Setting name to \"default-layer\"");
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79 layerElement.setAttribute("name", "default-layer");
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80 }
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81
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82 try {
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83 layerElement.setAttribute("min_scale",
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84 String.valueOf(layer.getMinimumScale()));
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85 }
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86 catch(IOException ioe) {
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87 logger.warn(
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88 "Could not read minimum scale." +
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89 " Setting minimum scale to 0.");
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90 layerElement.setAttribute("min_scale", "0");
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91 }
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92
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93 try {
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94 layerElement.setAttribute("max_scale",
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95 String.valueOf(layer.getMaximumScale()));
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96 }
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97 catch(IOException ioe) {
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98 logger.warn(
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99 "Could not read maximum scale." +
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100 " Setting maximum scale to 0.");
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101 layerElement.setAttribute("max_scale", "0");
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102 }
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103
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104 try {
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105 if(layer.isVisible()) {
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106 layerElement.setAttribute("status", "on");
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107 }
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108 else {
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109 layerElement.setAttribute("status", "off");
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110 }
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111 }
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112 catch(IOException ioe) {
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113 logger.warn(
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114 "Could not read layer status." +
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115 " Setting layer status to \"on\".");
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116 layerElement.setAttribute("status", "on");
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117 }
117
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118
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119 int type = 0;
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120 try {
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121 type = layer.getShapeType();
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122 }
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123 catch(IOException ioe) {
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124 logger.warn(
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125 "Could not read shape type." +
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126 " Setting shape type to \"none\".");
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127 type = 0;
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128 }
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129 switch (type) {
62
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130 case 0: layerElement.setAttribute("type", "none"); break;
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131 case 1: layerElement.setAttribute("type", "point"); break;
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132 case 3: layerElement.setAttribute("type", "line"); break;
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133 case 4: layerElement.setAttribute("type", "polygon"); break;
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134 }
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135
117
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136 try {
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137 layerElement.setAttribute("definition_query",
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138 layer.getDefinitionExpression());
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139 }
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140 catch(IOException ioe) {
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141 logger.warn(
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142 "Could not read definition query." +
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143 " Setting empty definition query.");
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144 layerElement.setAttribute("definition_query", "");
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145 }
6c3d880db7c5 Improved exception handling for layer reader.
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146 try {
6c3d880db7c5 Improved exception handling for layer reader.
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147 IName fcn = layer.getDataSourceName();
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148 if(fcn instanceof FeatureClassName) {
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149 FeatureClassName name = (FeatureClassName)fcn;
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150 layerElement.setAttribute("data_source", name.getName());
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151 }
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152 else {
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153 logger.debug (
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154 "Unknown FeatureClass name:" +
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155 fcn.getClass().toString());
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156 }
6c3d880db7c5 Improved exception handling for layer reader.
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diff changeset
157 }
6c3d880db7c5 Improved exception handling for layer reader.
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diff changeset
158 catch(IOException ioe) {
6c3d880db7c5 Improved exception handling for layer reader.
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159 logger.warn("Could not read datasource. Stopped reading layer.");
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160 return null;
100
bab3946a8bdc Read the connection settings for file geodatabase.
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diff changeset
161 }
31
40c0b4e5f91a Added utility class to store map attributes.
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162
117
6c3d880db7c5 Improved exception handling for layer reader.
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diff changeset
163 try {
6c3d880db7c5 Improved exception handling for layer reader.
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164 String datatype = layer.getDataSourceType();
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165 if(datatype.equals("Shapefile Feature Class")) {
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166 layerElement.setAttribute("connection_type", "local");
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167 layerElement.setAttribute(
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168 "workspace",
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169 layer.getWorkspace().getPathName());
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170 }
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diff changeset
171 else if(datatype.equals("File Geodatabase Feature Class")){
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172 layerElement.setAttribute("connection_type", "ogr");
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173 layerElement.setAttribute("data", layer.getFeatureClass().getFeatureDataset().getName());
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diff changeset
174 layerElement.setAttribute(
6c3d880db7c5 Improved exception handling for layer reader.
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diff changeset
175 "workspace",
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diff changeset
176 layer.getWorkspace().getPathName());
100
bab3946a8bdc Read the connection settings for file geodatabase.
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diff changeset
177
117
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diff changeset
178 }
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diff changeset
179 else if(datatype.equals("SDE Feature Class")) {
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diff changeset
180 IPropertySet set = layer.getWorkspace().getConnectionProperties();
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181 Object names[] = new Object[set.getCount()];
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diff changeset
182 Object prop[] = new Object[set.getCount()];
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diff changeset
183 set.getAllProperties(names, prop);
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diff changeset
184 layerElement.setAttribute("connection_type", "SDE");
6c3d880db7c5 Improved exception handling for layer reader.
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diff changeset
185 for(int i = 0; i < names.length; i++) {
6c3d880db7c5 Improved exception handling for layer reader.
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diff changeset
186 if(names[i] != null) {
6c3d880db7c5 Improved exception handling for layer reader.
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diff changeset
187 String[] prop_names = (String[])names[i];
6c3d880db7c5 Improved exception handling for layer reader.
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diff changeset
188 for(int j = 0; j < prop_names.length; j++) {
6c3d880db7c5 Improved exception handling for layer reader.
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diff changeset
189 layerElement.setAttribute(
6c3d880db7c5 Improved exception handling for layer reader.
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diff changeset
190 prop_names[j].toLowerCase(),
6c3d880db7c5 Improved exception handling for layer reader.
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diff changeset
191 set.getProperty(prop_names[j]).toString());
6c3d880db7c5 Improved exception handling for layer reader.
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diff changeset
192 }
113
0db6eacad0e6 Read SDE connection settings.
vc11884admin@VC11884.win.bsh.de
parents: 100
diff changeset
193 }
0db6eacad0e6 Read SDE connection settings.
vc11884admin@VC11884.win.bsh.de
parents: 100
diff changeset
194 }
0db6eacad0e6 Read SDE connection settings.
vc11884admin@VC11884.win.bsh.de
parents: 100
diff changeset
195 }
100
bab3946a8bdc Read the connection settings for file geodatabase.
Raimund Renkert <rrenkert@intevation.de>
parents: 97
diff changeset
196 }
117
6c3d880db7c5 Improved exception handling for layer reader.
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diff changeset
197 catch(Exception e) {
6c3d880db7c5 Improved exception handling for layer reader.
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diff changeset
198 logger.error(
6c3d880db7c5 Improved exception handling for layer reader.
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diff changeset
199 "Could not read layer datasource." +
6c3d880db7c5 Improved exception handling for layer reader.
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diff changeset
200 " Stopped reading layer.");
6c3d880db7c5 Improved exception handling for layer reader.
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diff changeset
201 return null;
6c3d880db7c5 Improved exception handling for layer reader.
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diff changeset
202 }
31
40c0b4e5f91a Added utility class to store map attributes.
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parents: 29
diff changeset
203 return layerElement;
25
cbd67b1100d8 Initial commit of the first prototype.
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parents:
diff changeset
204 }
cbd67b1100d8 Initial commit of the first prototype.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
205 }
cbd67b1100d8 Initial commit of the first prototype.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
206 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
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