[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: GBX files and cache

This archive contains answers to questions sent to Unidata support through mid-2025. Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated. For the most up-to-date information on the use of NSF Unidata software and data services, please consult the Software Documentation first.

  • Subject: Re: GBX files and cache
  • Date: Tue, 15 Jun 2010 15:58:39 -0600 (MDT)
On Tue, 15 Jun 2010, Robert B. Schmunk wrote:



Robb,

GribGridServiceProvider is not referenced in the public API for NJ4.*.
What's your recommendation on the best way to access it?


Robert,
We are still working on the JavaDocs for 4.2 and this will be included in the public API for NJ4.2. 

so use:

GribGridServiceProvider.setIndexAlwaysInCache( true );

This method is:

static public void setIndexAlwaysInCache(boolean b) {
    alwaysInCache = b;
  }

So there should be no problem accessing it.

RObb...





rbs



On Jun 15, 2010, at 16:03, Robb Kambic wrote:


-------- Original Message --------
Subject:
GBX files and cache
Date:
Thu, 10 Jun 2010 22:54:44 -0400
From:
Robert B. Schmunk <address@hidden>
To:
John Caron <address@hidden>
John,
On the webpage at
http://www.unidata.ucar.edu/software/netcdf-java/reference/Caching.html
there is a statement that

  In 4.0, the cache policy for GRIB indexes is set seperately from
  generic DiskCache, in order to give you seperate control:

  GribServiceProvider.setIndexAlwaysInCache( true); // always use the cache
for grib index


Robert,

GribServiceProvider.setIndexAlwaysInCache( true) did not work because
GribServiceProvider is deprecated, you should be using:

GribGridServiceProvider()  so use

GribGridServiceProvider.setIndexAlwaysInCache( true );

In the CDM, all classes in iosp/grib have been deprecated except
GribGridServiceProvider, GribBinaryIndexer, and Grib2Netcdf. The deprecated 
grib classes can be found in the iosp/grid directory. In TDS 4.2 the deprecated 
classes will be removed.

I will fix the documentation on the web and in the repository.

Robb...




I have tried using this in my Panoply app, and found that this does
not seem to work at all. The GBX files continue to be written in the
same directory as the original GRIB file. Is there a bug in NJ4, or
am I missing something in how this is supposed to work? I have tried
using this with and without applying DiskCache.setCachePolicy and
DiskCache.setRootDirectory.
rbs
--
Robert B. Schmunk, address@hidden
NASA Goddard Institute for Space Studies, 2880 Broadway, New York, NY 10025



===============================================================================
Robb Kambic                                Unidata Program Center
Software Engineer III                      Univ. Corp for Atmospheric Research
address@hidden             WWW: http://www.unidata.ucar.edu/
===============================================================================




--
Robert B. Schmunk, address@hidden
NASA Goddard Institute for Space Studies, 2880 Broadway, New York, NY 10025




===============================================================================
Robb Kambic                                Unidata Program Center
Software Engineer III                      Univ. Corp for Atmospheric Research
address@hidden             WWW: http://www.unidata.ucar.edu/
===============================================================================