Mercurial > dive4elements > gnv-client

annotate gnv/src/main/java/de/intevation/gnv/action/WMSAction.java @ 1022:28a0628b11b0

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Added license file and license header. gnv/trunk@1258 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Tue, 02 Nov 2010 17:15:08 +0000
parents 541ff0db1b12
children
rev   line source
1022
28a0628b11b0 Added license file and license header.
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1 /*
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2 * Copyright (c) 2010 by Intevation GmbH
28a0628b11b0 Added license file and license header.
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3 *
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4 * This program is free software under the LGPL (>=v2.1)
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5 * Read the file LGPL.txt coming with the software for details
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6 * or visit http://www.gnu.org/licenses/ if it does not exist.
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7 */
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8
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9 package de.intevation.gnv.action;
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10
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11 import java.text.DateFormat;
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12 import java.util.ArrayList;
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13 import java.util.Collection;
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14 import java.util.Date;
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15 import java.util.Iterator;
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16
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17 import javax.servlet.http.HttpServletRequest;
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18 import javax.servlet.http.HttpServletResponse;
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19
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20 import org.apache.log4j.Logger;
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21 import org.apache.struts.action.ActionForm;
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22 import org.apache.struts.action.ActionForward;
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23 import org.apache.struts.action.ActionMapping;
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24 import org.w3c.dom.Document;
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25 import org.w3c.dom.Node;
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26 import org.w3c.dom.NodeList;
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27
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28 import de.intevation.gnv.action.sessionmodel.DiagrammOptions;
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29 import de.intevation.gnv.action.sessionmodel.SessionModel;
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30 import de.intevation.gnv.action.sessionmodel.SessionModelFactory;
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31 import de.intevation.gnv.artifactdatabase.client.ArtifactDatabaseClient;
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32 import de.intevation.gnv.artifactdatabase.client.ArtifactDatabaseClientFactory;
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33 import de.intevation.gnv.artifactdatabase.objects.ArtifactObject;
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34 import de.intevation.gnv.artifactdatabase.objects.DefaultInputParameter;
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35 import de.intevation.gnv.artifactdatabase.objects.InputParameter;
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36 import de.intevation.gnv.artifactdatabase.objects.OutputMode;
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37 import de.intevation.gnv.artifactdatabase.objects.OutputParameter;
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38 import de.intevation.gnv.artifactdatabase.objects.map.DefaultLayer;
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39 import de.intevation.gnv.artifactdatabase.objects.map.DefaultMapService;
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40 import de.intevation.gnv.artifactdatabase.objects.map.Layer;
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41 import de.intevation.gnv.artifactdatabase.objects.map.MapService;
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42 import de.intevation.gnv.util.XMLUtils;
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43
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44 /**
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45 * This controller is used to publish the results of the current artifact as
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46 * WMS. The wms export mode of the artifact server is triggered which feeds a
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47 * MapServer with the given shapefiles (path to the shapefiles is stored in the
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48 * artifact). After calling this controller, the shapefiles are ready to be
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49 * queried as WMS layers.
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50 *
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51 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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52 */
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53 public class WMSAction extends DescribeUIAction {
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54
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55 public static final String XPATH_MAPSERVER_PATH =
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56 "/art:meta/art:mapserver/art:server/text()";
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57
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58 public static final String XPATH_MAPSERVER_MAPFILE =
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59 "/art:meta/art:mapserver/art:map/text()";
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60
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61 public static final String XPATH_LAYERNODESET =
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62 "/art:meta/art:layer";
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63
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64 public static final String XPATH_LAYER_TITLE =
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65 "art:title/text()";
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66
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67 public static final String XPATH_LAYER_NAME =
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68 "art:name/text()";
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69
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70 public static final String XPATH_TTL =
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71 "/art:meta/art:mapserver/art:ttl/text()";
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72
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73 public static final String XPATH_BBOX =
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74 "/art:meta/art:mapserver/art:Box/art:coordinates/text()";
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75
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76 /**
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77 * the logger, used to log exceptions and additonaly information
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78 */
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79 private static Logger logger = Logger.getLogger(WMSAction.class);
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80
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81 /**
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82 * Constructor
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83 */
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84 public WMSAction() {
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85 super();
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86 }
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87
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88 @Override
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89 public ActionForward execute(ActionMapping mapping, ActionForm form,
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90 HttpServletRequest request,
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91 HttpServletResponse response) throws Exception {
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92 if (isSessionExhausted(request)) {
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93 return sessionExhaustedForward(mapping, form, request, response);
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94 }
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95
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96 logger.debug("WMSAction.execute");
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97 try {
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98 SessionModel sm = SessionModelFactory.getInstance().getSessionModel(
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99 request);
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100
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101 OutputMode outputMode = sm.getOutputMode("wms");
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102 Collection<InputParameter> ips = null;
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103 if (outputMode != null) {
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104 Collection<OutputParameter> inputParameter =
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105 outputMode.getOutputParameters();
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106
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107 if (inputParameter != null) {
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108 ips = new ArrayList<InputParameter>(inputParameter.size());
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109 Iterator<OutputParameter> it = inputParameter.iterator();
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110 DiagrammOptions diagrammOptions = new DiagrammOptions();
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111
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112 int params = 0;
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113 while (it.hasNext()) {
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114 String name = it.next().getName();
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diff changeset
115 String[] values = request.getParameterValues(name);
ccd47d9887ec Added an options panel for wms customization (issue198).
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116 String value = request.getParameter(name);
ccd47d9887ec Added an options panel for wms customization (issue198).
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diff changeset
117 InputParameter ip = new DefaultInputParameter(name,
705
f550bd27a3f1 Html characters in strings inserted by the user are quoted (issue221).
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118 encode(values));
668
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diff changeset
119 ips.add(ip);
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diff changeset
120
ccd47d9887ec Added an options panel for wms customization (issue198).
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121 if (value != null) {
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parents: 585
diff changeset
122 ++params;
705
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123 diagrammOptions.setValue(name, encode(value));
668
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124 }
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125 }
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diff changeset
126
ccd47d9887ec Added an options panel for wms customization (issue198).
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127 if (params > 0) {
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128 sm.setDiagrammOptions(diagrammOptions);
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129 }
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130 }
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131 }
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132
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133 ArtifactObject artifact = sm.getCurrentArtifact();
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134
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135 ArtifactDatabaseClientFactory factory =
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136 ArtifactDatabaseClientFactory.getInstance();
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137 ArtifactDatabaseClient adc = factory.getArtifactDatabaseClient(
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138 getLocale(request));
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139 ArtifactObject artifactfactory = sm.getSelectedArtifactFactory();
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140
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141 // do wms publishing
668
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142 Document meta = adc.publishWMS(artifactfactory,artifact,ips);
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143
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144 // read the Server-information
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145 String mapserverPath = XMLUtils.getStringXPath(
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146 meta, XPATH_MAPSERVER_PATH);
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147 String mapfilePath = XMLUtils.getStringXPath(
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148 meta, XPATH_MAPSERVER_MAPFILE);
680
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149 String tmpTTL = XMLUtils.getStringXPath(
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150 meta, XPATH_TTL);
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151
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152 String bbox = XMLUtils.getStringXPath(meta, XPATH_BBOX);
680
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153 String ttl = null;
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154 if (tmpTTL != null) {
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155 DateFormat df = DateFormat.getDateTimeInstance(
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156 DateFormat.LONG,
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157 DateFormat.LONG,
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158 request.getLocale());
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159
680
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160 try {
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161 long tmp = Long.parseLong(tmpTTL);
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162 ttl = df.format(new Date(tmp));
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163 }
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164 catch (NumberFormatException nfe) {
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165 logger.error("Error while parsing time to live.");
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166 logger.error(nfe,nfe);
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diff changeset
167
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168 ttl = "";
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169 }
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170 }
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171
668
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172 if (logger.isDebugEnabled()) {
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173 logger.debug("Mapserver path: " + mapserverPath);
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174 logger.debug("Mapfile path: " + mapfilePath);
680
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175 logger.debug("Layer ttl: " + ttl);
668
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176 }
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177 // read the layer information
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178
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179 NodeList layerNodes = XMLUtils.getNodeSetXPath(meta,
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180 XPATH_LAYERNODESET);
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181 Collection<Layer> layers = null;
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182 if (layerNodes != null && layerNodes.getLength() > 0){
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183 layers = new ArrayList<Layer>(layerNodes.getLength());
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184 for (int i = 0 ; i < layerNodes.getLength(); i++){
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185 Node tmpLayerNode = layerNodes.item(i);
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diff changeset
186 String layerName = XMLUtils.getStringXPath(
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diff changeset
187 tmpLayerNode, XPATH_LAYER_NAME);
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diff changeset
188 String layerTitle = XMLUtils.getStringXPath(
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189 tmpLayerNode, XPATH_LAYER_TITLE);
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190 // TODO: write layerTitle to title and not to id
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diff changeset
191 Layer currentLayer = new DefaultLayer(layerTitle, layerName,
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192 false, null);
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diff changeset
193 layers.add(currentLayer);
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194 }
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195 }
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196
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diff changeset
197
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198
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199
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200 // TODO PUT MAPFILEPATH AND TTL to MapServiceObject
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201
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202 if (mapserverPath != null &&
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203 mapfilePath != null) {
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204 request.setAttribute("wms_published", Boolean.TRUE);
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205
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206 MapService mapService = new DefaultMapService("0815", layers,
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207 "UMN", mapserverPath,
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diff changeset
208 bbox,ttl);
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209 sm.setLocalMapService(mapService);
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210 return super.execute(mapping, form, request, response);
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diff changeset
211 }else{
970
d91ffd0e8239 Some small xpath changes for wms output regarding rev1134 (issue198).
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parents: 705
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212 return super.execute(mapping, form, request, response);
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213 }
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214 }
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215 catch (Exception e) {
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216 logger.error(e, e);
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217 request.setAttribute(
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218 CommunicationKeys.REQUEST_EXCEPTION_MESSAGE_ID,
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219 e.getMessage());
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220
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221 return super.getExceptionForward(mapping);
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222 }
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223 }
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224 }
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225 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org