Mercurial > dive4elements > gnv-client

annotate gnv/src/main/java/de/intevation/gnv/action/WMSAction.java @ 984:cfc7bd35ee0b

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Set the map to the extent which was sent by the rest-server gnv/trunk@1167 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Tim Englich <tim.englich@intevation.de>
date Mon, 07 Jun 2010 14:52:45 +0000
parents d1ed5c51c0de
children 33198e55371c
rev   line source
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cbd397712ecf Render an OpenLayers map with the layer even published after triggering shapefile and mapfile creation.
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parents:
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1 package de.intevation.gnv.action;
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2
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3 import java.text.DateFormat;
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4 import java.util.ArrayList;
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5 import java.util.Collection;
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6 import java.util.Date;
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7 import java.util.Iterator;
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8
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9 import javax.servlet.http.HttpServletRequest;
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10 import javax.servlet.http.HttpServletResponse;
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11
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12 import org.apache.log4j.Logger;
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13 import org.apache.struts.action.ActionForm;
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14 import org.apache.struts.action.ActionForward;
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15 import org.apache.struts.action.ActionMapping;
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16 import org.w3c.dom.Document;
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17 import org.w3c.dom.Node;
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18 import org.w3c.dom.NodeList;
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19
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20 import de.intevation.gnv.action.sessionmodel.DiagrammOptions;
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21 import de.intevation.gnv.action.sessionmodel.SessionModel;
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22 import de.intevation.gnv.action.sessionmodel.SessionModelFactory;
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23 import de.intevation.gnv.artifactdatabase.client.ArtifactDatabaseClient;
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24 import de.intevation.gnv.artifactdatabase.client.ArtifactDatabaseClientFactory;
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25 import de.intevation.gnv.artifactdatabase.objects.ArtifactObject;
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26 import de.intevation.gnv.artifactdatabase.objects.DefaultInputParameter;
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27 import de.intevation.gnv.artifactdatabase.objects.InputParameter;
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28 import de.intevation.gnv.artifactdatabase.objects.OutputMode;
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29 import de.intevation.gnv.artifactdatabase.objects.OutputParameter;
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30 import de.intevation.gnv.artifactdatabase.objects.map.DefaultLayer;
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31 import de.intevation.gnv.artifactdatabase.objects.map.DefaultMapService;
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32 import de.intevation.gnv.artifactdatabase.objects.map.Layer;
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33 import de.intevation.gnv.artifactdatabase.objects.map.MapService;
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34 import de.intevation.gnv.util.XMLUtils;
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35
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36 /**
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37 * This controller is used to publish the results of the current artifact as
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38 * WMS. The wms export mode of the artifact server is triggered which feeds a
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39 * MapServer with the given shapefiles (path to the shapefiles is stored in the
254f062e334b Added JavaDoc.
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40 * artifact). After calling this controller, the shapefiles are ready to be
254f062e334b Added JavaDoc.
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41 * queried as WMS layers.
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42 *
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43 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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44 */
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45 public class WMSAction extends DescribeUIAction {
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46
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47 public static final String XPATH_MAPSERVER_PATH =
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48 "/art:meta/art:mapserver/art:server/text()";
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49
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50 public static final String XPATH_MAPSERVER_MAPFILE =
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51 "/art:meta/art:mapserver/art:map/text()";
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52
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53 public static final String XPATH_LAYERNODESET =
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54 "/art:meta/art:layer";
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55
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56 public static final String XPATH_LAYER_TITLE =
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57 "art:title/text()";
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58
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59 public static final String XPATH_LAYER_NAME =
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60 "art:name/text()";
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61
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62 public static final String XPATH_TTL =
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63 "/art:meta/art:mapserver/art:ttl/text()";
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64
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65 public static final String XPATH_BBOX =
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66 "/art:meta/art:mapserver/art:Box/art:coordinates/text()";
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67
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68 /**
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69 * the logger, used to log exceptions and additonaly information
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70 */
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71 private static Logger logger = Logger.getLogger(WMSAction.class);
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72
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73 /**
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74 * Constructor
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75 */
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76 public WMSAction() {
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77 super();
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78 }
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79
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80 @Override
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81 public ActionForward execute(ActionMapping mapping, ActionForm form,
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82 HttpServletRequest request,
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83 HttpServletResponse response) throws Exception {
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84 logger.debug("WMSAction.execute");
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85 try {
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86 SessionModel sm = SessionModelFactory.getInstance().getSessionModel(
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87 request);
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88
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89 OutputMode outputMode = sm.getOutputMode("wms");
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90 Collection<InputParameter> ips = null;
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91 if (outputMode != null) {
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92 Collection<OutputParameter> inputParameter =
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93 outputMode.getOutputParameters();
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94
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95 if (inputParameter != null) {
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96 ips = new ArrayList<InputParameter>(inputParameter.size());
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97 Iterator<OutputParameter> it = inputParameter.iterator();
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98 DiagrammOptions diagrammOptions = new DiagrammOptions();
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99
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100 int params = 0;
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101 while (it.hasNext()) {
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102 String name = it.next().getName();
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103 String[] values = request.getParameterValues(name);
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104 String value = request.getParameter(name);
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105 InputParameter ip = new DefaultInputParameter(name,
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106 encode(values));
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107 ips.add(ip);
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108
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109 if (value != null) {
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110 ++params;
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111 diagrammOptions.setValue(name, encode(value));
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112 }
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113 }
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114
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115 if (params > 0) {
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116 sm.setDiagrammOptions(diagrammOptions);
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117 }
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118 }
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119 }
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120
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121 ArtifactObject artifact = sm.getCurrentArtifact();
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122
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123 ArtifactDatabaseClientFactory factory =
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124 ArtifactDatabaseClientFactory.getInstance();
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125 ArtifactDatabaseClient adc = factory.getArtifactDatabaseClient(
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126 getLocale(request));
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127 ArtifactObject artifactfactory = sm.getSelectedArtifactFactory();
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128
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129 // do wms publishing
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130 Document meta = adc.publishWMS(artifactfactory,artifact,ips);
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131
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132 // read the Server-information
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133 String mapserverPath = XMLUtils.getStringXPath(
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134 meta, XPATH_MAPSERVER_PATH);
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135 String mapfilePath = XMLUtils.getStringXPath(
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136 meta, XPATH_MAPSERVER_MAPFILE);
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137 String tmpTTL = XMLUtils.getStringXPath(
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138 meta, XPATH_TTL);
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139
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140 String bbox = XMLUtils.getStringXPath(meta, XPATH_BBOX);
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141 String ttl = null;
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142 if (tmpTTL != null) {
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143 DateFormat df = DateFormat.getDateTimeInstance(
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144 DateFormat.LONG,
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145 DateFormat.LONG,
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146 request.getLocale());
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147
680
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148 try {
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149 long tmp = Long.parseLong(tmpTTL);
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150 ttl = df.format(new Date(tmp));
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151 }
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152 catch (NumberFormatException nfe) {
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153 logger.error("Error while parsing time to live.");
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154 logger.error(nfe,nfe);
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155
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156 ttl = "";
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157 }
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158 }
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159
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160 if (logger.isDebugEnabled()) {
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161 logger.debug("Mapserver path: " + mapserverPath);
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162 logger.debug("Mapfile path: " + mapfilePath);
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163 logger.debug("Layer ttl: " + ttl);
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164 }
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165 // read the layer information
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166
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167 NodeList layerNodes = XMLUtils.getNodeSetXPath(meta,
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168 XPATH_LAYERNODESET);
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169 Collection<Layer> layers = null;
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170 if (layerNodes != null && layerNodes.getLength() > 0){
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171 layers = new ArrayList<Layer>(layerNodes.getLength());
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172 for (int i = 0 ; i < layerNodes.getLength(); i++){
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173 Node tmpLayerNode = layerNodes.item(i);
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174 String layerName = XMLUtils.getStringXPath(
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175 tmpLayerNode, XPATH_LAYER_NAME);
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176 String layerTitle = XMLUtils.getStringXPath(
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177 tmpLayerNode, XPATH_LAYER_TITLE);
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178 // TODO: write layerTitle to title and not to id
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179 Layer currentLayer = new DefaultLayer(layerTitle, layerName,
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180 false, null);
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181 layers.add(currentLayer);
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182 }
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183 }
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184
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185
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186
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187
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188 // TODO PUT MAPFILEPATH AND TTL to MapServiceObject
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189
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190 if (mapserverPath != null &&
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191 mapfilePath != null) {
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192 request.setAttribute("wms_published", Boolean.TRUE);
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193
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194 MapService mapService = new DefaultMapService("0815", layers,
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195 "UMN", mapserverPath,
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196 bbox);
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197 sm.setLocalMapService(mapService);
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198 return super.execute(mapping, form, request, response);
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199 }else{
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200 return super.execute(mapping, form, request, response);
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201 }
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202 }
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203 catch (Exception e) {
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204 logger.error(e, e);
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205 request.setAttribute(
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206 CommunicationKeys.REQUEST_EXCEPTION_MESSAGE_ID,
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207 e.getMessage());
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208
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209 return super.getExceptionForward(mapping);
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210 }
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211 }
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212 }
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213 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org