Mercurial > dive4elements > gnv-client

annotate gnv/src/main/java/de/intevation/gnv/action/WMSAction.java @ 668:ccd47d9887ec

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Added an options panel for wms customization (issue198). gnv/trunk@775 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Mon, 15 Mar 2010 13:46:05 +0000
parents 2e690cb2247c
children 707e142e7d44
rev   line source
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1 package de.intevation.gnv.action;
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2
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3 import java.util.ArrayList;
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4 import java.util.Collection;
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5 import java.util.Iterator;
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6
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7 import javax.servlet.http.HttpServletRequest;
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8 import javax.servlet.http.HttpServletResponse;
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9
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10 import org.apache.log4j.Logger;
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11 import org.apache.struts.action.ActionForm;
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12 import org.apache.struts.action.ActionForward;
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13 import org.apache.struts.action.ActionMapping;
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14
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15 import org.w3c.dom.Document;
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16
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17 import de.intevation.gnv.action.sessionmodel.DiagrammOptions;
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18 import de.intevation.gnv.action.sessionmodel.SessionModel;
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19 import de.intevation.gnv.action.sessionmodel.SessionModelFactory;
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20 import de.intevation.gnv.artifactdatabase.client.ArtifactDatabaseClient;
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21 import de.intevation.gnv.artifactdatabase.client.ArtifactDatabaseClientFactory;
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22 import de.intevation.gnv.artifactdatabase.objects.ArtifactObject;
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23 import de.intevation.gnv.artifactdatabase.objects.DefaultInputParameter;
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24 import de.intevation.gnv.artifactdatabase.objects.InputParameter;
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25 import de.intevation.gnv.artifactdatabase.objects.OutputMode;
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26 import de.intevation.gnv.artifactdatabase.objects.OutputParameter;
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27 import de.intevation.gnv.util.XMLUtils;
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28
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29 /**
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30 * @author Ingo Weinzierl (ingo.weinzierl@intevation.de)
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31 */
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32 public class WMSAction extends DescribeUIAction {
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33
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34 public static final String XPATH_MAPSERVER_PATH =
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35 "/art:meta/art:mapserver/art:server/text()";
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36
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37 public static final String XPATH_MAPSERVER_MAPFILE =
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38 "/art:meta/art:mapserver/art:map/text()";
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39
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40 public static final String XPATH_LAYER_TITLE =
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41 "/art:meta/art:layer/art:title/text()";
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42
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43 /**
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44 * the logger, used to log exceptions and additonaly information
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45 */
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46 private static Logger logger = Logger.getLogger(WMSAction.class);
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47
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48 /**
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49 * Constructor
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50 */
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51 public WMSAction() {
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52 super();
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53 }
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54
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55 @Override
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56 public ActionForward execute(ActionMapping mapping, ActionForm form,
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57 HttpServletRequest request,
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58 HttpServletResponse response) throws Exception {
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59 logger.debug("WMSAction.execute");
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60 try {
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61 SessionModel sm = SessionModelFactory.getInstance().getSessionModel(
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62 request);
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63
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64 OutputMode outputMode = sm.getOutputMode("wms");
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65 Collection<InputParameter> ips = null;
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66 if (outputMode != null) {
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67 Collection<OutputParameter> inputParameter =
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68 outputMode.getOutputParameters();
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69
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70 if (inputParameter != null) {
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71 ips = new ArrayList<InputParameter>(inputParameter.size());
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72 Iterator<OutputParameter> it = inputParameter.iterator();
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73 DiagrammOptions diagrammOptions = new DiagrammOptions();
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74
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75 int params = 0;
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76 while (it.hasNext()) {
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77 String name = it.next().getName();
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78 String[] values = request.getParameterValues(name);
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79 String value = request.getParameter(name);
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80 InputParameter ip = new DefaultInputParameter(name,
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81 values);
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82 ips.add(ip);
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83
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84 if (value != null) {
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85 ++params;
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86 diagrammOptions.setValue(name, value);
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87 }
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88 }
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89
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90 if (params > 0) {
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91 sm.setDiagrammOptions(diagrammOptions);
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92 }
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93 }
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94 }
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95
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96 ArtifactObject artifact = sm.getCurrentArtifact();
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97
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98 ArtifactDatabaseClientFactory factory =
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99 ArtifactDatabaseClientFactory.getInstance();
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100 ArtifactDatabaseClient adc = factory.getArtifactDatabaseClient(
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101 getLocale(request));
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102 ArtifactObject artifactfactory = sm.getSelectedArtifactFactory();
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103
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104 // do wms publishing
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105 Document meta = adc.publishWMS(artifactfactory,artifact,ips);
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106 String mapserverPath = XMLUtils.getStringXPath(
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107 meta, XPATH_MAPSERVER_PATH);
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108 String mapfilePath = XMLUtils.getStringXPath(
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109 meta, XPATH_MAPSERVER_MAPFILE);
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110 String layer = XMLUtils.getStringXPath(
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111 meta, XPATH_LAYER_TITLE);
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112 layer = layer != null ? layer : artifact.getId();
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113
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114 if (logger.isDebugEnabled()) {
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115 logger.debug("Mapserver path: " + mapserverPath);
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116 logger.debug("Mapfile path: " + mapfilePath);
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117 logger.debug("Layer title: " + layer);
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118 }
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119
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120 request.setAttribute("wms", true);
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121 request.setAttribute("mapserver", mapserverPath);
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122 request.setAttribute("mapfile", mapfilePath);
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123 request.setAttribute("layer", layer);
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124
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125 return super.execute(mapping, form, request, response);
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126 }
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127 catch (Exception e) {
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128 logger.error(e, e);
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129 request.setAttribute(
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130 CommunicationKeys.REQUEST_EXCEPTION_MESSAGE_ID,
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131 e.getMessage());
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132
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133 return super.getExceptionForward(mapping);
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134 }
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135 }
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136
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137 }
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138 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org