Re: [netcdf-java] error trying to create union...

• To: <netcdf-java@xxxxxxxxxxxxxxxx>
• Subject: Re: [netcdf-java] error trying to create union...
• From: Doug Lindholm <doug.lindholm@xxxxxxxxxxxxxxxxx>
• Date: Wed, 21 Dec 2011 10:25:21 -0700

This rings a bell. In my notes (maybe from the 4.1 days) I found:

bug: trying to wrap StructureDS in VariableDS
add test to line 85 in DatasetConstructor:
else if (!(v instanceof VariableDS) && !(v instanceof StructureDS))

Doug

On 12/21/11 9:41 AM, Tom Rink wrote:

Hi,

I can get the failure from toolsUI-4.2 using the following NcML:

<?xml version="1.0" encoding="UTF-8"?>

<netcdf xmlns="http://www.unidata.ucar.edu/namespaces/netcdf/ncml-2.2";>

<attribute name="title" type="string" value="Union"/>

<aggregation type="union">
<netcdf location="MYD021KM.A2011331.0400.005.2011332201942.hdf"/>
<netcdf location="MYD03.A2011331.0400.005.2011332200801.hdf"/>
</aggregation>

</netcdf>

On 12/20/11 4:50 PM, Tom Rink wrote:

Hi,

Does anybody know what this means:


java.lang.IllegalArgumentException: VariableDS must not wrap a
Structure; name=Level 1B Swath Metadata
      [java]     at
ucar.nc2.dataset.VariableDS.<init>(VariableDS.java:157)
      [java]     at
ucar.nc2.dataset.DatasetConstructor.transferGroup(DatasetConstructor.java:88)
      [java]     at
ucar.nc2.dataset.DatasetConstructor.transferDataset(DatasetConstructor.java:58)
      [java]     at
ucar.nc2.ncml.AggregationUnion.buildNetcdfDataset(AggregationUnion.java:66)
      [java]     at ucar.nc2.ncml.Aggregation.finish(Aggregation.java:408)
      [java]     at
ucar.nc2.ncml.NcMLReader.readNetcdf(NcMLReader.java:487)
      [java]     at ucar.nc2.ncml.NcMLReader.readNcML(NcMLReader.java:432)
      [java]     at ucar.nc2.ncml.NcMLReader.readNcML(NcMLReader.java:350)
      [java]     at ucar.nc2.ncml.NcMLReader.readNcML(NcMLReader.java:282)



I'm trying to create a union aggregation between two files.

Tom

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• References:
  • [netcdf-java] error trying to create union...
    • From: Tom Rink
  • Re: [netcdf-java] error trying to create union...
    • From: Tom Rink