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[IDV #TSR-658482]: IDV - Loading most recent HRV images from EUMETSAT ADDE server 193.17.19.4

Hi HansPeter-

> The solution as proposed at the end of your answer is fine for me. With
> that you should get the most recent complete image(s) available on the
> EUMETSAT server.

If you'd like to try this out, you can download the latest release
candidate from:

http://www.unidata.ucar.edu/software/idv/release/stable

The documentation on this release has yet to be updated, but we've
fixed a bunch of bugs.

> BTW: Also McIDAS has had this brute abort problem initially. On my
> proposal Marianne has introduce a more gracful solution that issues a
> warning and does nothing.

The release above may print out the error to the console now, but we'll
work on a better format for the final release.

Have (or hope you had) a good weekend.

Don

> Unidata IDV Support wrote:
> > Hi HansPeter-
> >
> >> Institution: EUMETSAT
> >> Package Version: 1.3b2
> >> Operating System: os.name:Windows XP; os.arch:x86; os.version:5.1;
> >> Hardware Information: java.vendor:Sun Microsystems Inc.; 
> >> java.version:1.4.2_08; java.home:C:\\Program Files\\IDV_1.3B2\\jre; 
> >> j3d.version:1.3.2 fcs (build12); j3d.vendor:Sun Microsystems, Inc.; 
> >> j3d.renderer:OpenGL;
> >> Inquiry: If the most recent  HRV image is incomplete (load to EUMETSAT 
> >> ADDE server not fiinished)
> >> any laoding of an image sequnece aborts with the following message
> >>
> >> An error has occurred:
> >> Loading image data
> >> java.lang.NullPointerException
> >>
> >> This occurs with version 1.3b2 and is appears to be  independent of the 
> >> platform (XP and SuSE Linux 9.3).
> >> There is an obvious problem with the handling of the most recent image 
> >> either at the source or in IDV.
> >
> > I would say it's both, but mostly with the IDV. ;-)  The server responds 
> > with
> > "Could not open an image file" which to me seems odd because I would think
> > it should always be able to return the latest available image (position 0).
> > However, for the user experience, the IDV is not handling this gracefully.
> > First, you found a bug in 1.3B2 which is throwing the NullPointerException.
> > This was fixed and is in the latest release candidate.  However, even
> > with the fix, there is still an issue if any one of the requested images
> > cannot be retrieved.
> >
> >> What could be the solution that would not abort also in case the most 
> >> recent image is not yet complete?
> >
> > Right now, the IDV will abort the load if the first (or only) image 
> > requested
> > is not available.  I recently made a change to account for subsequent images
> > not being available, but it still aborts if the first is not.  Today, I
> > made a change to account for any of the images not being available with the
> > behavior being that it will still load the images it can retrieve.  If
> > no images can be loaded, a message will pop up indicating this.  This 
> > solution
> > gets around the issue your server presents as well as problems if subsequent
> > images in the time series are not accessible.  How does this solution sound
> > to you?
> >
> >> ******************
> >> Stack trace:
> >> java.lang.NullPointerException
> >> at 
> >> ucar.unidata.idv.control.DisplayControlImpl.updateLegendLabel(DisplayControlImpl.java:2940)
> >> at 
> >> ucar.unidata.idv.control.ImageSequenceControl.loadDataInner(ImageSequenceControl.java:595)
> >> at 
> >> ucar.unidata.idv.control.ImageSequenceControl.loadData(ImageSequenceControl.java:369)
> >> at 
> >> ucar.unidata.idv.control.ImageSequenceControl.loadData(ImageSequenceControl.java:358)
> >> at 
> >> ucar.unidata.idv.control.ImageSequenceControl.access$000(ImageSequenceControl.java:98)
> >> at 
> >> ucar.unidata.idv.control.ImageSequenceControl$1.run(ImageSequenceControl.java:218)
> >> at ucar.unidata.util.Misc$2.run(Misc.java:895)
> >>
> >>
> >>
> >>
> >
> >
> > Ticket Details
> > ===================
> > Ticket ID: TSR-658482
> > Department: Support IDV
> > Priority: Normal
> > Status: Open
> >
> >
> >
> 
> 


Ticket Details
===================
Ticket ID: TSR-658482
Department: Support IDV
Priority: Normal
Status: Open