Thank you for the information. That sounds very interesting for our work.
[My apologies for the cross-post - I'm not exactly sure how much overlap exists
between the opendap and the THREDDS and ncISO lists.]
OPeNDAP is pleased to announce its first release of software that can crawl
OPeNDAP servers to collect, process and generate metadata. This alpha-level
software, written in Java, is being released because it seems to be synchronous
with similar efforts by other groups pursuing similar ideas about automatic
This software crawls OPeNDAP servers that can return THREDDS catalogs; Examines
patterns in URLs to form 'logical datasets;' and builds NCML and/or EML
metadata records describing the datasets found during the crawl/grouping
process. The NCML built is used to describe aggregations of the (often
numerous) URLs in a logical dataset (using a JoinNew aggregation) and the EML
is used to describe datasets (either single- or multi-URL) for search/discovery
using the Metacat database.
This is an alpha release, but it's packaged so that the parts all work using
command-line scripts and ant targets. You also need Postgres. The generation of
both NCML and EML uses the same technique as with ncISO - transforms of XML
using XSL - so it should be easy to add generation of ISO to the mix.
Questions welcome: support@xxxxxxxxxxx or to any of the lists
jgallagher at opendap.org
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