Jena uses jsonld-java for JSON-LD 1.0 and titanium-json-ld for JSON-LD 1.1
Rob describes the framing support for passing information to jsonld-java
for JSON-LD 1.0.
At Jena5, support for JSON-LD 1.0 is planned for removal. The
jsonld-java project does not appear to be active.
The project is looking for a contribution to provide passing framing
information to titanium-json-ld.
Andy
https://github.com/jsonld-java/jsonld-java
https://github.com/filip26/titanium-json-ld
On 14/08/2023 15:04, Rob @ DNR wrote:
Riot, and more generally Jena’s, configuration symbols are actually URIs
internally, so the --set option needs to receive the full URI for the symbol,
which I think should start with http://jena.apache.org/riot/jsonld#, not just
the Java constant names as they appear in the examples/API.
Also, I don’t believe that any of these context options expect to receive a
file, rather they expect to contain a chunk of JSON itself so from the command
line you’d probably need something like the following:
$ export FRAME=$(cat frame.json)
$ riot --out JSONLD_FRAME_PRETTY --set
“http://jena.apache.org/riot/jsonld#JSONLD_FRAME=$FRAME” input.ttl
NB – Completely untested, I don’t use JSON-LD myself at all so no guarantees
any of this will work, but hopefully this at least points you in the right
direction to make progress
Rob
From: Martin <[email protected]>
Date: Monday, 14 August 2023 at 12:45
To: [email protected] <[email protected]>
Subject: riot cmd convert RDF to JSON-LD framing
Hi,
I would like to convert RDF (on Turtle format) to JSON-LD and apply a
JSON-LD framing specification to it (*) -- and I would prefer to do
this with the command line tooling that ships with Jena.
I can transform my RDF to JSON-LD with the command
$ riot --out=jsonld [file]
but I have not found a way to pass my context json file to the command.
Attempts like this fails or does not pick up the context file:
$ riot --out=JSONLD_FRAME_PRETTY --set JSONLD_CONTEXT=[file] [file]
These attempts are motivated by
https://jena.apache.org/documentation/io/rdf-output.html#json-ld
Is there a way to pass a context file to riot, or otherwise achieve
what I want using Jena's command line tools? If not, what is my best
other option?
Thanks!
Martin
(*) Apologies if I am not using correct terminology for this.
