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Re: Data from Lat Lon in 4.3 (John Caron)

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  • Subject: Re: Data from Lat Lon in 4.3 (John Caron)
  • Date: Mon, 27 Feb 2012 09:59:49 -0700
i think its a bug that i thought i fixed. try giving it an absolute path for the filename. 

On 2/27/2012 7:59 AM, Cameron Fraser wrote:

Thanks for the response.
There must be something off with my setup, I cannot even open a grib file. The same file will open using the toolsui. 
Version is 4.3.9rc1

Maybe you can make some sense of it.
Error ouput: (code follows)

26-Feb-2012 10:44:05 AM ucar.nc2.util.rc.RC loadDefaults
INFO: No .rc file found
java.io.IOException: java.lang.StringIndexOutOfBoundsException: String index out of range: -1 at ucar.nc2.grib.grib2.Grib2CollectionBuilder.<init>(Grib2CollectionBuilder.java:123) at ucar.nc2.grib.grib2.Grib2CollectionBuilder.readOrCreateIndexFromSingleFile(Grib2CollectionBuilder.java:75) at ucar.nc2.grib.GribIndex.makeGribCollectionFromSingleFile(GribIndex.java:128) 
    at ucar.nc2.grib.grib2.Grib2Iosp.open(Grib2Iosp.java:295)
    at ucar.nc2.NetcdfFile.<init>(NetcdfFile.java:1468)
    at ucar.nc2.NetcdfFile.open(NetcdfFile.java:870)
    at ucar.nc2.NetcdfFile.open(NetcdfFile.java:503)
    at ucar.nc2.NetcdfFile.open(NetcdfFile.java:473)
    at ucar.nc2.NetcdfFile.open(NetcdfFile.java:460)
    at ucar.nc2.NetcdfFile.open(NetcdfFile.java:448)
    at test2.GribReadTest.worker(GribReadTest.java:24)
    at test2.GribReadTest.main(GribReadTest.java:15)
Caused by: java.lang.StringIndexOutOfBoundsException: String index out of range: -1 
    at java.lang.String.substring(String.java:1949)
at thredds.inventory.CollectionManagerSingleFile.getRoot(CollectionManagerSingleFile.java:59) at ucar.nc2.grib.grib2.Grib2CollectionBuilder.<init>(Grib2CollectionBuilder.java:117) 
    ... 11 more
Exception in thread "main" java.lang.NullPointerException
    at test2.GribReadTest.worker(GribReadTest.java:33)
    at test2.GribReadTest.main(GribReadTest.java:15)


Code used: (tried couple of grib files and interfaces with same result)

import java.io.IOException;
import ucar.nc2.NetcdfFile;
import ucar.nc2.dataset.NetcdfDataset;

public class GribReadTest {

    public static void main(String[] args) {
        GribReadTest name = new GribReadTest();
        name.worker();
    }

    private void worker() {
         NetcdfDataset ncd = null;
         NetcdfFile ncfile = null;
         try {
// ncd = (NetcdfDataset) NetcdfDataset.openFile( "20120213.00.00.wind", null ); 
//           ncfile = NetcdfFile.open("20120213.00.00.wind");
           ncfile = NetcdfFile.open("ruc2.t00z.pgrb13anl.grib2");

        } catch (IOException e) {
            e.printStackTrace();
        } finally {
               try {
//                ncd.close();
                ncfile.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
         }
    }
}