Mercurial > dive4elements > gnv-client

annotate gnv/src/main/java/de/intevation/gnv/action/mapviewer/MapViewerCallAction.java @ 952:902d4de27c37

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Add more Javadocs gnv/trunk@1096 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Tim Englich <tim.englich@intevation.de>
date Mon, 17 May 2010 14:21:19 +0000
parents 57fa8019fbdc
children 28a0628b11b0
rev   line source
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1 package de.intevation.gnv.action.mapviewer;
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2
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3 import java.io.ByteArrayInputStream;
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4 import java.io.InputStream;
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5 import java.util.ArrayList;
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6 import java.util.Collection;
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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
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17 import de.intevation.gnv.action.ArtifactDatabaseActionBase;
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18 import de.intevation.gnv.action.mapviewer.parser.ExternalCallParser;
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19 import de.intevation.gnv.action.mapviewer.parser.XMLExternalCallParser;
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20 import de.intevation.gnv.action.sessionmodel.SessionModel;
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21 import de.intevation.gnv.action.sessionmodel.SessionModelFactory;
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22 import de.intevation.gnv.artifactdatabase.client.ArtifactDatabaseClientFactory;
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23 import de.intevation.gnv.artifactdatabase.objects.ArtifactObject;
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24 import de.intevation.gnv.artifactdatabase.objects.map.MapService;
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25
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26 /**
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27 * This class provides the businesslogic for handling an
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28 * MV-GNV-Interface-call.
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29 * This call can be done in two ways.
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30 * First is to put the requestbody into the body of the http-post-request.
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31 * Second to put the requestbody to the parameter "document" of the
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32 * http-post-request.
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33 * @author <a href="mailto:tim.englich@intevation.de">Tim Englich</a>
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34 */
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35 public class MapViewerCallAction extends ArtifactDatabaseActionBase {
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36
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37 /**
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38 * the logger, used to log exceptions and additonaly information
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39 */
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40 private static Logger log = Logger.getLogger(MapViewerCallAction.class);
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41
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42 /**
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43 * Constructor
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44 */
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45 public MapViewerCallAction() {
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46 super();
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47 }
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48
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49 /**
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50 * @see de.intevation.gnv.action.ArtifactDatabaseActionBase#execute(org.apache.struts.action.ActionMapping, org.apache.struts.action.ActionForm, javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
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51 */
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52 @Override
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53 public ActionForward execute(ActionMapping mapping, ActionForm form,
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54 HttpServletRequest request,
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55 HttpServletResponse response) throws Exception {
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56 log.debug("MapViewerCallAction.execute");
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57 InputStream inputStream = null;
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58 String documentvalue = request.getParameter("document");
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59 if (documentvalue != null){
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60 documentvalue = documentvalue.trim();
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61 inputStream = new ByteArrayInputStream(documentvalue.getBytes());
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62 }else{
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63 inputStream = request.getInputStream();
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64 }
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65
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66 if (inputStream != null){
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67 try {
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68 ExternalCallParser ecp = new XMLExternalCallParser(inputStream);
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69 ecp.parse();
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70 String geometry = ecp.getGeometry();
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71 String srs = ecp.getSRS();
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72 Collection<MapService> mapServices = ecp.getMapServices();
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73
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74 Collection<ArtifactObject> availableFactories =
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75 ArtifactDatabaseClientFactory
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76 .getInstance()
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77 .getArtifactDatabaseClient(getLocale(request))
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78 .getArtifactFactoryMetaInformation(mapServices,
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79 geometry,
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80 srs);
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81
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82 Collection<ArtifactObject> providedFactories =
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83 ArtifactDatabaseClientFactory
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84 .getInstance()
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85 .getArtifactDatabaseClient(getLocale(request))
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86 .getArtifactFactories();
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87
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88 // Sort out which ArtifactFactories should not be used.
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89 Collection<ArtifactObject> usedFactories =
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90 new ArrayList<ArtifactObject>(availableFactories.size());
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91
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92 Iterator<ArtifactObject> it = availableFactories.iterator();
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93 while (it.hasNext()){
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94 ArtifactObject ao = it.next();
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95 if (providedFactories.contains(ao)){
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96 usedFactories.add(ao);
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97 }
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98 }
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99
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100 SessionModel sm = SessionModelFactory
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101 .getInstance()
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102 .getSessionModel(request);
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103 sm.resetModel();
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104 sm.setArtifacteFactories(usedFactories);
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105 } catch (Exception e) {
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106 log.error(e,e);
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107 }
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108 }else{
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109 log.error("Kein Anfragedokument übergeben.");
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110 }
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111 return super.execute(mapping, form, request, response);
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112 }
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113
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114 }
http://dive4elements.wald.intevation.org