[thredds] <dataSize> embedded within <metadata> within <dataset> not picked up by NetCDF-Java Library.

[Ethan Davis]

Hi Hannah,

Hannah Wilcox wrote:
> Hello!
>
> I am using the NetCDF-Java Library to parse TDS configuration THREDDS  
> catalogs and I've run into a sticky point that I'm hoping you can  
> help sort out.  I have an example TDS configuration file which I can  
> read in and validate using the NetCDF-Java Library, but a certain  
> piece of information I'm expecting to see is either NOT there, or in  
> a place I'm not looking.  The piece of information is a dataSize for  
> a dataset.   The twist here is that the dataSize is embedded within a  
> metadata tag thusly:
>
>                          <dataset name="Atmosphere"  
> ID="cgcm3.1_t47_atmos" serviceName="gridded">
>                                  <metadata inherited="false">
>                                          <dataSize  
> units="Kbytes">439.78</dataSize>
>                                  </metadata>
> 			</dataset>
>
> The specification says that a <dataset> can contain an element of the  
> threddsMetadataGroup which contains <metadata> and <metadata> can  
> contain elements of the threddsMetadataGroup which includes  
> <dataSize>.  However when I look at the InvDatasetImpl that this  
> example produces, getDataSize() returns 0.0 and I cannot see the size  
> in any of the metadata structures.
>
>
> My questions are:
>
> -  Is this a valid structure?
>   

Yes, it is valid.

> -  If it is a valid structure, is there a reason the size element of  
> an InvDatasetImpl is not populated with the dataSize from this  
> structure?
>   

Oops, that's a bug. We'll get a fix out soon.

Ethan

> -  If it isn't a valid structure, can that somehow be noted or  
> changed in the specification?
>
>
> Thanks for your time,
>
>
> Hannah Wilcox
>
> Software Engineer in the VETS group
> hannah at ucar.edu
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>   

-- 
Ethan R. Davis                                Telephone: (303) 497-8155
Software Engineer                             Fax:       (303) 497-8690
UCAR Unidata Program Center                   E-mail:    edavis at ucar.edu
P.O. Box 3000
Boulder, CO  80307-3000                       http://www.unidata.ucar.edu/
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