Mercurial > dive4elements > gnv-client

annotate gnv/src/main/java/de/intevation/gnv/action/PreviousArtifactStepAction.java @ 699:af22fa5567a6

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Removed trailing whitespace. gnv/trunk@935 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Sat, 17 Apr 2010 09:31:48 +0000
parents 254f062e334b
children 0441e78cd900
rev   line source
394
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1 package de.intevation.gnv.action;
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2
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3 import de.intevation.gnv.action.sessionmodel.SessionModel;
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4 import de.intevation.gnv.action.sessionmodel.SessionModelFactory;
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5
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6 import de.intevation.gnv.artifactdatabase.client.ArtifactDatabaseClient;
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7 import de.intevation.gnv.artifactdatabase.client.ArtifactDatabaseClientFactory;
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8
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9 import de.intevation.gnv.artifactdatabase.objects.ArtifactDescription;
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10 import de.intevation.gnv.artifactdatabase.objects.ArtifactObject;
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12 import javax.servlet.http.HttpServletRequest;
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13 import javax.servlet.http.HttpServletResponse;
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14
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15 import org.apache.log4j.Logger;
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17 import org.apache.struts.action.ActionForm;
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18 import org.apache.struts.action.ActionForward;
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19 import org.apache.struts.action.ActionMapping;
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21 /**
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22 * This controller is used to step back to a previous state of the current
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23 * artifact. After calling the advance operation of the artifact server have
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24 * been called successfully, the describe document of the current artifact is
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25 * fetched and a new gui is rendered.
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26 *
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27 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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28 */
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29 public class PreviousArtifactStepAction extends DescribeUIAction {
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32 public static final String URL_STATE_KEY = "target";
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33
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34 private static Logger logger =
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35 Logger.getLogger(PreviousArtifactStepAction.class);
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38 public PreviousArtifactStepAction() {
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39 super();
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40 }
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43 @Override
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44 public ActionForward execute(
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45 ActionMapping mapping,
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46 ActionForm form,
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47 HttpServletRequest request,
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48 HttpServletResponse response
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49 ) throws Exception {
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50
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51 SessionModel session = SessionModelFactory.getInstance().getSessionModel(
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52 request);
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53
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54 ArtifactDescription ad = session.getArtifactDescription();
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55 if (ad == null) {
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56 logger.warn("Session timed out.");
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57 request.setAttribute(
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58 CommunicationKeys.REQUEST_EXCEPTION_MESSAGE_ID,
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59 "SessionTimeout has occured");
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60 new FetchArtifactFactoriesAction().execute(
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61 mapping, form, request, response);
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62
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63 return super.execute(mapping, form, request, response);
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64 }
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66 // TODO check if target is reachable
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68 ArtifactDatabaseClientFactory f =
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69 ArtifactDatabaseClientFactory.getInstance();
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70 ArtifactDatabaseClient client =
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71 f.getArtifactDatabaseClient(getLocale(request));
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73 ArtifactObject artifactFactory = session.getSelectedArtifactFactory();
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74 ArtifactObject currentArtifact = session.getCurrentArtifact();
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75
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76 String target = (String) request.getParameter(URL_STATE_KEY);
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77 logger.debug("Step back to previous state: " + target);
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78
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79 try {
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80 client.doAdvance(
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81 artifactFactory,
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82 currentArtifact,
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83 target
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84 );
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85 }
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86 catch (Exception e) {
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87 logger.error(e, e);
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88 request.setAttribute(
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89 CommunicationKeys.REQUEST_EXCEPTION_MESSAGE_ID,
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90 e.getMessage());
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91 }
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92
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93 return super.execute(mapping, form, request, response);
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94 }
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95 }
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96 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org