Hola Chiara,
To "enrich" the TDS catalog you can use XML namespaces [1]. That allows to
use more than one XML schema.
In fact the TDS already uses it for the datasetScan to point using XLink
schema to the directories been scanned.
With respect to the datasetScan feature to create a proxy of an absolute
latest atomic dataset, it would require to create an new datasetScan
element.
Meanwhile you can create/modify the catalogs using an external tool.
I would recommend use a tool/library which is XML "aware" to guarantee well
formed and semantically correct XML documents, but using other tool would
fit your purpose.
Take into account that catalog entries generated by datasetScan are created
in-memory and they are cached/persisted (???) In specific storage format.
One interesting feature in the TDS5.0 version are the dynamic catalogs,
similar to a catalogScan. But it has not been officially released but the
current beta version already implements it.
Antonio S. Cofino
[1] https://www.w3schools.com/xml/xml_namespaces.asp
On 19 Jul 2018 12:37, "Chiara Scaini" <saetachiara@xxxxxxxxx> wrote:
Hi all, I'm setting up a thredds catalog to be used by Geonetwork.
The catalog contains meteorological data, but will be enriched by other
data sources (ex. a table containing the list of records that were moved to
a backup facility and are no longer available on disk, or a table
containing pictures related to the files).
Is it possible to enrich the xml file with other data (ex. inserting xml
nodes directly into the file) without breaking thredds functionalities?
What strategy do you recommend (ex. a bash script to modify the xml,
or...?).
Note that I'm using a <datasetScan> to recursively get all items in a
nested folder structure, so I would like to modify the 'real' xml catalog
that contains all the nodes (some information should to be inserted at the
container level, others at the data level).
Many thanks,
Chiara
--
Chiara Scaini
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