Mercurial > dive4elements > gnv-client
diff gnv/src/main/java/de/intevation/gnv/action/PreviousArtifactStepAction.java @ 580:377da78ed36b
Display an exception if an error occured while stepping back to a former state (issue183).
gnv/trunk@719 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
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date | Mon, 01 Mar 2010 15:52:24 +0000 |
parents | df78178e1180 |
children | 15ac78a91d1b |
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--- a/gnv/src/main/java/de/intevation/gnv/action/PreviousArtifactStepAction.java Mon Mar 01 11:08:07 2010 +0000 +++ b/gnv/src/main/java/de/intevation/gnv/action/PreviousArtifactStepAction.java Mon Mar 01 15:52:24 2010 +0000 @@ -6,6 +6,7 @@ import de.intevation.gnv.artifactdatabase.client.ArtifactDatabaseClient; import de.intevation.gnv.artifactdatabase.client.ArtifactDatabaseClientFactory; +import de.intevation.gnv.artifactdatabase.objects.ArtifactDescription; import de.intevation.gnv.artifactdatabase.objects.ArtifactObject; import javax.servlet.http.HttpServletRequest; @@ -49,6 +50,18 @@ SessionModel session = SessionModelFactory.getInstance().getSessionModel( request); + ArtifactDescription ad = session.getArtifactDescription(); + if (ad == null) { + logger.warn("Session timed out."); + request.setAttribute( + CommunicationKeys.REQUEST_EXCEPTION_MESSAGE_ID, + "SessionTimeout has occured"); + new FetchArtifactFactoriesAction().execute( + mapping, form, request, response); + + return super.execute(mapping, form, request, response); + } + // TODO check if target is reachable ArtifactDatabaseClientFactory f = @@ -62,11 +75,19 @@ String target = (String) request.getParameter(URL_STATE_KEY); logger.debug("Step back to previous state: " + target); - client.doAdvance( - artifactFactory, - currentArtifact, - target - ); + try { + client.doAdvance( + artifactFactory, + currentArtifact, + target + ); + } + catch (Exception e) { + logger.error(e, e); + request.setAttribute( + CommunicationKeys.REQUEST_EXCEPTION_MESSAGE_ID, + e.getMessage()); + } return super.execute(mapping, form, request, response); }