org.wdssii.ncingest.Grib2Ingest is my application i.e. the class that has
the line of code that calls NetcdfDataSet.open()
Lak
On Tue, Jan 20, 2009 at 4:23 PM, John Caron <caron@xxxxxxxxxxxxxxxx> wrote:
> Hi Lak:
>
> You have a strange class: "org.wdssii.ncingest.Grib2Ingest" where does
> that come from ?
>
>
>
> Valliappa Lakshmanan wrote:
> > John,
> >
> > I downloaded the latest netcdf-4.0.jar and tried it. I still get the
> > same problem. Here's the stacktrace, in case the line numbers help
> > isolate the issue:
> >
> > [java] 2009-01-20 14:26:46,867 [main] WARN
> > org.wdssii.ncingest.Grib2Ingest - java.io.IOException: Cant read
> > /scratch2/lakshman/modelmining/WRFPRS_GrbF21.grib2: not a valid NetCDF
> file.
> > [java] at ucar.nc2.NetcdfFile.open(NetcdfFile.java:628)
> > [java] at ucar.nc2.NetcdfFile.open(NetcdfFile.java:335)
> > [java] at ucar.nc2.NetcdfFile.open(NetcdfFile.java:305)
> > [java] at ucar.nc2.NetcdfFile.open(NetcdfFile.java:292)
> > [java] at ucar.nc2.NetcdfFile.open(NetcdfFile.java:280)
> >
> > The code that throws the exception is simply:
> > NetcdfDataset.open("/scratch2/..../filename.grib2");
> >
> > My classpath consists of the following jar files (netcdf dependencies in
> > bold):
> >
> > commons-logging.jar
> > *jdom_1.1.jar*
> > jnotify-0.91.jar
> > jstl.jar
> > junit.jar
> > *log4j-1.2.14.jar*
> > *netcdf-4.0.jar*
> > servlet-api.jar
> > *slf4j-api-1.1.0.jar
> > slf4j-log4j12-1.1.0.jar*
> > spring.jar
> > standard.jar
> >
> > thanks
> > Lak
> >
> >
> > On Fri, Dec 12, 2008 at 6:06 PM, John Caron <caron@xxxxxxxxxxxxxxxx
> > <mailto:caron@xxxxxxxxxxxxxxxx>> wrote:
> >
> > Hi Lak:
> >
> > Im not having any trouble opening from either 4.0 or latest 2.2. Can
> > you recheck your classpath? Also 4.0 has got less bugs in it at this
> > point, so you might try it.
> >
> > Valliappa Lakshmanan wrote:
> > > John, thanks for looking at this. The file (74MB) is now at:
> > >
> > >
http://cimms.ou.edu/~lakshman/data/WRFPRS_GrbF21.grib2<http://cimms.ou.edu/%7Elakshman/data/WRFPRS_GrbF21.grib2>
> > <http://cimms.ou.edu/%7Elakshman/data/WRFPRS_GrbF21.grib2>
> > >
> > > Lak
> > >
> > >
> > > On Fri, Dec 12, 2008 at 1:28 PM, John Caron
> > <caron@xxxxxxxxxxxxxxxx <mailto:caron@xxxxxxxxxxxxxxxx>
> > > <mailto:caron@xxxxxxxxxxxxxxxx <mailto:caron@xxxxxxxxxxxxxxxx>>>
> > wrote:
> > >
> > > Hi Lak:
> > >
> > > NetcdfDataset.open() should have worked.
> > >
> > > Can you send us the file, and we'll check why its not working.
> > >
> > > Valliappa Lakshmanan wrote:
> > > > I know there must be a very simple way to do this, but I
> > can't seem to
> > > > find any example or documentation.
> > > >
> > > > I want to read a Grib2 file using the Java Netcdf API and
> tried:
> > > >
> > > > File file = new File("/tmp/WRFPRS_GrbF21.grib2"); // a
> > grib2 file
> > > > NetcdfFile ncfile =
> NetcdfDataset.open(file.getAbsolutePath());
> > > >
> > > > but get an IOException stating: Cant read
> > > /tmp/WRFPRS_GrbF21.grib2: not
> > > > a valid NetCDF file.
> > > >
> > > > I tried using ucar.dt.grid.GridDataSet.open() and got the
> > same result.
> > > >
> > > > In case it was a classpath/jar problem, I added toolsUI.jar
> from
> > > netcdf
> > > > 2.2.22 to my classpath (has grib.jar).
> > > > Same result. What am I missing?
> > > >
> > > > thanks
> > > > Lak
> > > >
> > > >
> > > >
> > > >
> > >
> >
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