Hi Annie,
This is the result of the GRIB module not being on the classpath when you
execute your Java program. Can you give me more details about your setup?
Can you provide you build file (Maven, Ant, Gradle, etc)?
Cheers,
Christian
On Wed, Jul 23, 2014 at 5:06 PM, Annie Burgess <anniebryant@xxxxxxxxx>
wrote:
> Greetings all,
>
> I am trying to create a script that will mimic the output of NCDump. I
> have successfully done this for NetCDF files, and now I am trying to apply
> it to grib2 files. I am using the NetCDF-java library in conjunction with
> Apache Tika to do this. Other posts have indicated I should be able to
> open my grib2 files, just as if they were .nc files. However, I continue
> to get the following error:
>
> "Caused by: java.io.IOException: Cant read gdas1.forecmwf.2014062612.grib2:
> not a valid CDM file."
>
> To open the .nc files, this is the bit of code I use (with the exception
> of changing the .nc file to a .grib2 file):
>
> String name = "gdas1.forecmwf.2014062612.grib2";
>
> if (name == null) {
> name = "";
> }
>
> try NetcdfFile ncFile = NetcdfFile.openInMemory(name,
> os.toByteArray());
> // first parse out the set of global attributes
> for (Attribute attr : ncFile.getGlobalAttributes()) {
> Property property = resolveMetadataKey(attr.getName());
> if (attr.getDataType().isString()) {
> metadata.add(property, attr.getStringValue());
> } else if (attr.getDataType().isNumeric()) {
> int value = attr.getNumericValue().intValue();
> metadata.add(property, String.valueOf(value));
> }
> }
>
> Also, I am using the netcdfAll-4.3.jar at the command line. Does anyone
> have any insight as to *why *I'd be getting the 'not a valid CDM' error.
> I have checked the file using the NetCDF (4.3) GUI and the file looks
> good.
>
> Thank you for any insight you can give.
>
> Annie
>
>
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