Simon,
This sounds extremely useful and I'd love to give it a try.
Can you please tell us what the "trivial" changes are to NetCDF-Java?
And do you have a real-life example of the catalog below that works
with publicly available OpenDAP data?
Thanks,
Rich
On Wed, Apr 8, 2009 at 8:28 PM, <Simon.Pigot@xxxxxxxx> wrote:
> Hi Pauline,
>
> The following works ok for us (as an example - non-essential details removed):
>
> <?xml version="1.0" encoding="UTF-8"?>
> <catalog name="YOUR SITE OPeNDAP Catalog"
> xmlns="http://www.unidata.ucar.edu/namespaces/thredds/InvCatalog/v1.0";
> xmlns:xlink="http://www.w3.org/1999/xlink";>
>
> <service name="yoursiteopendap" serviceType="OpenDAP"
> base="http://www.yoursite.com/dods/nph-dods/dods-data/"/>
> <datasetScan name="climatology-netcdf" path="climatology-netcdf"
> location="http://www.yoursite.com/dods/nph-dods/dods-data/climatology-netcdf";>
> <serviceName>yoursiteopendap</serviceName>
> <crawlableDatasetImpl
> className="thredds.crawlabledataset.CrawlableDatasetDods" />
> </datasetScan>
> <datasetScan name="bluelink" path="bluelink"
> location="http://www.yoursite.com/dods/nph-dods/dods-data/bluelink";>
> <serviceName>yoursiteopendap</serviceName>
> <crawlableDatasetImpl
> className="thredds.crawlabledataset.CrawlableDatasetDods" />
> </datasetScan>
> </catalog>
>
> I'm not sure if its all documented somewhere - I worked it out the slow way
> by poking around in the netcdf java code and hunting through the archives of
> the thredds mailing list. There are also some trivial changes you need to
> make to the code (in netcdf-java) to filter out some unwanted artifacts
> created when the scan picks through the html from the OpenDAP server -
> otherwise you end up with some strange, non-functional things in your
> catalog. Maybe there is a better way to do the above?
>
> By way of introduction, we want this sort of catalog to work as part of a
> thredds metadata harvester I'm adding to GeoNetwork which produces ISO19115
> metadata records and ISO19119 records for thredds services. Its nearly at the
> stage where it is working reliably but there are a few more issues I need to
> solve and I'm still learning about Thredds :-)
>
> Cheers and I hope this helps,
> Simon
>
> ________________________________________
> From: thredds-bounces@xxxxxxxxxxxxxxxx [thredds-bounces@xxxxxxxxxxxxxxxx] On
> Behalf Of Pauline Mak [Pauline.Mak@xxxxxxxxxxx]
> Sent: Thursday, 9 April 2009 8:56 AM
> To: thredds@xxxxxxxxxxxxxxxx
> Subject: [thredds] Running THREDDS on top of old OPeNDAP servers
>
> Hi all,
>
> I'm figuring out ways to serve data using THREDDS on top of old OPeNDAP
> servers. I'm aware that you can configure datasets based on a URL, but
> that's for a single file... (correct me if I'm wrong!) However, are
> there ways to apply to an directory? Sort of like a datasetScan +
> filters for a directory URL? When poking through the THREDDS catalog
> XSD, there's a crawlableDatasetImpl element. Is that the sort of things
> I need to look at?
>
> Thanks,
>
> -Pauline.
>
> --
> Pauline Mak
>
> ARCS Data Services
> Ph: (03) 6226 7518
> Email: pauline.mak@xxxxxxxxxxx
> Jabber: pauline.mak@xxxxxxxxxxx
> http://www.arcs.org.au/
>
> TPAC
> Email: pauline.mak@xxxxxxxxxxx
> http://www.tpac.org.au/
>
>
>
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Dr. Richard P. Signell (508) 457-2229
USGS, 384 Woods Hole Rd.
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