Re: Null param tables when reading grib2 file

On Wed, 7 Jan 2009, Tom Margolis wrote:

> Thanks, Robb.
>
> We are already using the grib-6.0.jar, and it was accessed before
> toolsUI-4.0.jar in the classpath. So there must be another root cause of
> the problem.

ok, I'm attaching the latest grib  jar. I think the problem is that the 
.gbx and the .fmrInv.xml files are not correct. If they exist then they 
are not remade, so rm *gbx and *xml and then try again. I forgot about 
those files.

Robb...

> Note that, in the stack trace below, there is a reference to
> "saveIndexFile not exist" - maybe that has something to do with the error?
>
> Thanks for your time,
> Tom
>
> GribServiceProvider: saveIndexFile not exist
> /d1/grib2/2008122317_F09_RUC20P.grb2.gbx ++
> /d1/grib2/2008122317_F09_RUC20P.grb2.gbx
> GribServiceProvider: use /d1/grib2/2008122317_F09_RUC20P.grb2.gbx
> Hit uncaught exception java.lang.RuntimeException
> java.lang.NullPointerException
> at ucar.grib.grib2.ParameterTable.getParameter(ParameterTable.java:296)
> at ucar.grib.grib2.Grib2Lookup.getParameter(Grib2Lookup.java:90)
> at ucar.nc2.iosp.grib.Index2NC.makeVariableName(Index2NC.java:75)
> at ucar.nc2.iosp.grib.Index2NC.open(Index2NC.java:121)
> at
> ucar.nc2.iosp.grib.Grib2ServiceProvider.open(Grib2ServiceProvider.java:87)
> at ucar.nc2.iosp.grib.GribServiceProvider.open(GribServiceProvider.java:96)
> at ucar.nc2.NetcdfFile.<init>(NetcdfFile.java:1076)
> at ucar.nc2.NetcdfFile.open(NetcdfFile.java:589)
> at ucar.nc2.NetcdfFile.open(NetcdfFile.java:314)
> at ucar.nc2.dataset.NetcdfDataset.openOrAcquireFile(NetcdfDataset.java:576)
> at ucar.nc2.dataset.NetcdfDataset.openDataset(NetcdfDataset.java:338)
> at ucar.nc2.dataset.NetcdfDataset.acquireDataset(NetcdfDataset.java:417)
> at ucar.nc2.dataset.NetcdfDataset.acquireDataset(NetcdfDataset.java:393)
> at ucar.nc2.dt.grid.GridDataset.open(GridDataset.java:71)
> > We are aware of this problem, there are some RUC2 records that don't
> > have valid parameter Ids, ie 255. A fix has been made available from
> > the Decoder page: http://www.unidata.ucar.edu/software/decoders/
> > Download grib-decoder-java_6.0.16.tar.gz, get the lib/grib-6.0.jar and
> > modify your CLASSPATH so grib-6.0.jar is accessed before the
> > toolsUI-4.0.jar.
> >
> > Robb...
> >
> >
> >
> >
> >
> > On Mon, 22 Dec 2008, John Caron wrote:
> >
> > > Hi Tom:
> > >
> > > Can you send us the file or a pointer to it?
> > >
> > > Im forwarding to Robb Kambic, who does the grib work. You should send
> > > future messages to address@hidden, so that im
> > > not the bottleneck on these things. thanks!
> > >
> > > JOhn
> > >
> > > Tom Margolis wrote:
> > > > Hi John,
> > > >
> > > > I'm working with Rob Weingruber ... and trying to open a grib2 file
> > > > with
> > > > the Unidata's ncdf4 Java API (version 4.0.20; toolsUI-4.0.jar). I am
> > > > pointing to a "lone" grib2 file, copied from another machine, with no
> > > > supporting files associated with it. I get the following exception:
> > > >
> > > > java.lang.NullPointerException
> > > > at ucar.grib.grib2.ParameterTable.getParameter(ParameterTable.java:296)
> > > > at ucar.grib.grib2.Grib2Lookup.getParameter(Grib2Lookup.java:90)
> > > > at ucar.nc2.iosp.grib.Index2NC.makeVariableName(Index2NC.java:75)
> > > > at ucar.nc2.iosp.grib.Index2NC.open(Index2NC.java:121)
> > > > at
> > > > ucar.nc2.iosp.grib.Grib2ServiceProvider.open(Grib2ServiceProvider.java:87)
> > > >
> > > > at
> > > > ucar.nc2.iosp.grib.GribServiceProvider.open(GribServiceProvider.java:96)
> > > >
> > > > at ucar.nc2.NetcdfFile.<init>(NetcdfFile.java:1076)
> > > > at ucar.nc2.NetcdfFile.open(NetcdfFile.java:589)
> > > > at ucar.nc2.NetcdfFile.open(NetcdfFile.java:314)
> > > > at
> > > > ucar.nc2.dataset.NetcdfDataset.openOrAcquireFile(NetcdfDataset.java:576)
> > > >
> > > > at ucar.nc2.dataset.NetcdfDataset.openDataset(NetcdfDataset.java:338)
> > > > at
> > > > ucar.nc2.dataset.NetcdfDataset.acquireDataset(NetcdfDataset.java:417)
> > > > at
> > > > ucar.nc2.dataset.NetcdfDataset.acquireDataset(NetcdfDataset.java:393)
> > > > at ucar.nc2.dt.grid.GridDataset.open(GridDataset.java:71)
> > > >
> > > > Do I need some supporting param tables to be associated with this grib2
> > > > file? Are the param tables supposed to be part of the Unidata
> > > > distribution? Thanks,
> > > > Tom
> >
> > ===============================================================================
> >
> > Robb Kambic Unidata Program Center
> > Software Engineer III Univ. Corp for Atmospheric Research
> > address@hidden WWW: http://www.unidata.ucar.edu/
> > ===============================================================================

===============================================================================
Robb Kambic                                Unidata Program Center
Software Engineer III                      Univ. Corp for Atmospheric Research
address@hidden             WWW: http://www.unidata.ucar.edu/
===============================================================================

Attachment: grib-6.0.jar
Description: application/java-archive