Hello Kai,
On 2022-05-27 5:43 am, Kai Liu wrote:
Thanks for the links and the info.
I was talking about the EDG 7.2 feature "Commit Ontology to Git
Repository". We found this feature extremely useful, and it saved us
lots of tedious work of exporting, copying and renaming TTL files.
With this feature, the "External Graph URI" of included sub-graph is
not automatically persisted in the including sub-graph, however.
Back to the origin of my question: I need to find a way to resolve
<urn:x-evn-master:b> to a local file b.ttl, which was exported to the
same directory as a.ttl in the git repository. I need to run the SHACL
validator (https://github.com/TopQuadrant/shacl), which can not
understand "*<urn:x-evn-master:a> owl:imports <urn:x-evn-master:b>*",
but does understand "*<urn:x-evn-master:a> owl:imports <file:b.ttl>*"
. This is why I was thinking of populating an additional triple to
import <file:b.ttl>. This might just be a workaround though.
If you are running the SHACL API programmatically, there are various
ways in which you can redirect owl:imports. For example using something
like (untested)
ontDocumentManager.addAltEntry("urn:x-evn-master:a",
"file:///c:/a.ttl")
inserted into some place like
https://github.com/TopQuadrant/shacl/blob/master/src/main/java/org/topbraid/shacl/tools/AbstractTool.java#L76
Or just replace the owl:imports triples with file URIs as above. You
state the latter didn't quite work, but what error did you get?
But these are more Jena API questions than TopBraid questions.
Holger
It would be much appreciated if you could provide some suggestion
about how to resolve <urn:x-evn-master:b> to a local file b.ttl, such
that the external SHACL validator can run through without changing the
persisted TTL files by the EDG git feature.
Thanks.
Regards, Kai
On Thursday, 26 May 2022 at 16:06:15 UTC+2 David Price wrote:
Hi,
Forgot to mention that in Settings in each collection there is this:
External Graph URI
The external graph URI is an optional alias for the asset
collection identifier, used when exporting an asset collection as
serialized RDF graph. It can also be used on import of
interconnected RDF files when they are loaded into different asset
collections - to appropriately re-route their owl:imports references.
Cheers,
David
On 26 May 2022, at 12:06, Kai Liu <[email protected]> wrote:
Hi,
I have now a requirement to automatically add "owl:imports" lines
for all turtle file persisted in git repository. For example:
The asset colletion "a" includes the asset collection "b", and
the resulting a.ttl in the git repository has the following triple:
<urn:x-evn-master:a> owl:imports <urn:x-evn-master:b>.
I'd like to add an additional triple automatically:
<urn:x-evn-master:a> owl:imports <file:b.ttl>.
This should be done for all included asset collections. Could you
please suggest me how to do that? What script should be adapted
and how? Thanks.
Regards, Kai
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