Re: [netcdf-java] [netcdfgroup] Not a valid CDM file

  • To: Vineet Ghatge Hemantkumar <hemantku@xxxxxxx>
  • Subject: Re: [netcdf-java] [netcdfgroup] Not a valid CDM file
  • From: Sean Arms <sarms@xxxxxxxx>
  • Date: Sat, 22 Nov 2014 12:57:35 -0700
Hi Vineet,

I'm not sure why this isn't working right off hand. Would it be possible
for you to share the grib file you are working with?

Thanks,

Sean


On Sat, Nov 22, 2014 at 12:43 PM, Vineet Ghatge Hemantkumar <
hemantku@xxxxxxx> wrote:

> Hi Sean,
>
> I am using netCDF version 4.5.3 and signature being used is the following
>
> public static NetcdfFile 
> <http://www.unidata.ucar.edu/software/thredds/v4.3/netcdf-java/v4.0/javadoc/ucar/nc2/NetcdfFile.html>
>  *openInMemory*(java.lang.String name,
>                                       byte[] data)
>                                throws java.io.IOException
>
> Open an in-memory netcdf file.
>
> *Parameters:*name - name of the dataset. Typically use the filename or
> URI.data - in-memory netcdf file*Returns:*memory-resident NetcdfFile
> *Throws:*java.io.IOException - if error
>
> On Sat, Nov 22, 2014 at 9:11 AM, Sean Arms <sarms@xxxxxxxx> wrote:
>
>> Greetings Vineet,
>>
>> Which version of netCDF-Java are you using, and which signature of
>> openInMemory are you using?
>>
>> Thanks!
>>
>> Sean
>>
>>
>> On Friday, November 21, 2014, Vineet Ghatge Hemantkumar <hemantku@xxxxxxx>
>> wrote:
>>
>>> Hello All,
>>>
>>> I am trying to pass a InputStream of a grib file to the function 
>>> *netcdf.openinmemory()
>>> *but it fails with following error
>>>
>>> Caused by: java.io.IOException: Cant read : not a valid CDM file.
>>> at ucar.nc2.NetcdfFile.open(NetcdfFile.java:811)
>>> at ucar.nc2.NetcdfFile.openInMemory(NetcdfFile.java:728)
>>>
>>> If I change the netcdf to netcdf.open() and pass the file name it works
>>> well.
>>>
>>> 1. Will the openinmemory() work only for .nc files only?
>>> 2. What are options in netcdf to read inputstreams? My aim to is to make
>>> code independent of filenames or any other specific configurations?
>>>
>>> Regards,
>>> vineet
>>>
>>>
>
>
> --
> *Vineet Ghatge*
>
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