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[netCDFJava #UWT-369970]: some questions on opendap url support on netcdf java api

Hi Shakya:

We have notified the Hyrax developers of the issues that we have seen with that 
file. You might want to check with them directly at:

address@hidden.

John

> Hi,
> 
> Did you find anything?
> I upgraded the opendap server to latest one and still the problem is there.
> 
> Any feedback from you would help me find out the source of problem.
> 1) The problem could be with the file itself. Is there anything unusual about 
> the file?
> 2) It could be with the opendap server. If we could test the file by placing 
> it in some other opendap server we could verify this?
> 
> Thanks,
> Dibya
> 
> -----Original Message-----
> From: Shakya, Dibya
> Sent: Thursday, May 27, 2010 11:24 AM
> To: 'address@hidden'
> Cc: Keiser, Ken
> Subject: RE: [netCDFJava #UWT-369970]: some questions on opendap url support 
> on netcdf java api
> 
> Here is the actual file.
> 
> When the file is hosted in opendap server, the exception is thrown while 
> reading.
> 
> Thanks,
> Dibya
> 
> -----Original Message-----
> From: Unidata netCDF Java Support [mailto:address@hidden]
> Sent: Wednesday, May 26, 2010 6:53 PM
> To: Shakya, Dibya
> Cc: Keiser, Ken; address@hidden; Shakya, Dibya
> Subject: [netCDFJava #UWT-369970]: some questions on opendap url support on 
> netcdf java api
> 
> Hi Dibya:
> 
> Ok, we are having a lot of trouble with that dataset. Do you have access to 
> the actual file? If so, can you send it to us?
> 
> thanks,
> 
> John
> 
> > The complete exception I got is
> >
> > Exception in thread "main" java.lang.UnsupportedOperationException:
> > Cannot directly read section of Member Variable=Orbit 5451.Geolocation
> > Fields.Latitude at ucar.nc2.Variable.reallyRead(Variable.java:844)
> > at ucar.nc2.Variable._read(Variable.java:832)
> > at ucar.nc2.Variable.read(Variable.java:644)
> > at ucar.nc2.Variable.read(Variable.java:590)
> > at
> > edu.uah.itsc.opendapnc.OpendapNcChannels.showAll(OpendapNcChannels.jav
> > a:66) at
> > edu.uah.itsc.opendapnc.OpendapNcChannels.showAll(OpendapNcChannels.jav
> > a:54) at
> > edu.uah.itsc.opendapnc.OpendapNcChannels.showAll(OpendapNcChannels.jav
> > a:54) at
> > edu.uah.itsc.opendapnc.OpendapNcChannels.init(OpendapNcChannels.java:4
> > 4) at
> > edu.uah.itsc.opendapnc.OpendapNcObject.convertToGlider(OpendapNcObject
> > .java:69) at
> > edu.uah.itsc.CallGliderConverter.main(CallGliderConverter.java:68)
> >
> > Thanks,
> > Dibya
> >
> > -----Original Message-----
> > From: Shakya, Dibya
> > Sent: Wednesday, May 26, 2010 11:48 AM
> > To: 'address@hidden'
> > Cc: Keiser, Ken
> > Subject: RE: [netCDFJava #UWT-369970]: some questions on opendap url
> > support on netcdf java api
> >
> > As I said before I tried the code that works with local files with opendap 
> > url and it didn't work.
> >
> >
> > Once read into Variable object var I am using following code to read
> > data of variable
> >
> > int[] origin = { 0, 0 };
> > int[] shape = { 1, 1 };
> >
> > try {
> > Array data = var.read(origin, shape).reduce();
> > System.out.println(data.getFloat(0));
> > } catch (IOException e) {
> > e.printStackTrace();
> > } catch (InvalidRangeException e) {
> > e.printStackTrace();
> > }
> >
> >
> > I get the following exception
> > Exception in thread "main" java.lang.UnsupportedOperationException:
> > Cannot directly read section of Member Variable=Orbit 5451.Geolocation
> > Fields.Latitude
> >
> > Can you try to see if you can read data from variables from file
> > http://ws3dev.itsc.uah.edu/opendap/extractTarFiles/amsua15_1999.152_05
> > 451_0045_0239_GC.eos
> >
> > I am testing using this file.
> >
> > Thanks,
> > Dibya
> >
> > -----Original Message-----
> > From: Unidata netCDF Java Support
> > [mailto:address@hidden]
> > Sent: Tuesday, May 25, 2010 9:50 AM
> > To: Shakya, Dibya
> > Cc: Keiser, Ken; address@hidden; Shakya, Dibya
> > Subject: [netCDFJava #UWT-369970]: some questions on opendap url
> > support on netcdf java api
> >
> > You dont do anything special for opendap. So just read the tutorial and 
> > follow the examples there.
> >
> > > Hi,
> > >
> > > I looked through the doc
> > > http://www.unidata.ucar.edu/software/netcdf-java/tutorial/index.html
> > >
> > > I didn't find anything specific to reading from Opendap urls.
> > > So, if there is some information in internet and you could provide link 
> > > to that, it would be very helpful.
> > >
> > > Thanks,
> > > Dibya
> > >
> > > -----Original Message-----
> > > From: Shakya, Dibya
> > > Sent: Wednesday, May 19, 2010 11:37 AM
> > > To: 'address@hidden'
> > > Subject: RE: [netCDFJava #UWT-369970]: some questions on opendap url
> > > support on netcdf java api
> > >
> > > Hi,
> > >
> > > Did you find anything about it?
> > >
> > > Thanks,
> > > Dibya
> > >
> > > -----Original Message-----
> > > From: Shakya, Dibya
> > > Sent: Monday, May 17, 2010 1:15 PM
> > > To: 'address@hidden'
> > > Subject: RE: [netCDFJava #UWT-369970]: some questions on opendap url
> > > support on netcdf java api
> > >
> > > Hi,
> > >
> > > The code you gave is working. It is listing the variables.
> > > I am having problem in reading contents of variables.
> > > Can't we use the same functions that we used to read local files for 
> > > opendap urls?
> > >
> > > Once read into Variable object var I am using following code to read
> > > data of variable
> > >
> > > int[] origin = { 0, 0 };
> > > int[] shape = { 1, 1 };
> > >
> > > try {
> > > Array data = var.read(origin, shape).reduce();
> > > System.out.println(data.getFloat(0));
> > > } catch (IOException e) {
> > > e.printStackTrace();
> > > } catch (InvalidRangeException e) {
> > > e.printStackTrace();
> > > }
> > >
> > >
> > > I get the following exception
> > > Exception in thread "main" java.lang.UnsupportedOperationException:
> > > Cannot directly read section of Member Variable=Orbit
> > > 5451.Geolocation Fields.Latitude
> > >
> > > Thanks,
> > > Dibya
> > >
> >
> >
> 
> 
> Ticket Details
> ===================
> Ticket ID: UWT-369970
> Department: Support netCDF Java
> Priority: High
> Status: Open
> 
> 


Ticket Details
===================
Ticket ID: UWT-369970
Department: Support netCDF Java
Priority: High
Status: Closed