Json ld

[antony-wilson]

This branch adds functionality to get the provenance report in a JSON-LD format.
As part of this namespaces were added to the report:

  prefix lreg <http://localhost:8000/>
  prefix reg <https://data.scrc.uk/>
  prefix fair <https://data.scrc.uk/vocab/#>
  prefix dcat <http://www.w3.org/ns/dcat#>
  prefix dcmitype <http://purl.org/dc/dcmitype/>
  prefix dcterms <http://purl.org/dc/terms/>
  prefix foaf <http://xmlns.com/foaf/spec/#>

N.B. Either the lreg or reg namespace will be used depending on if the register is local.
The fair namespace is used for terms not in the other vocabs.

In order to determine is this is a local registry and to provide a central namespace for vocal terms the variable CENTRAL_REGISTRY_URL was added to the settings files.

An additional requirement of rdflib-jsonld has been added.
The version of rdflib has been increased to 6.0.1, this include what was the rdflib-jsonld package.

In the views module there is a new renderer for JSON-LD also the comments have been restructured to improve their display on the API page.

[codecov]

Codecov Report

Merging #147 (1453bcf) into main (4e76552) will increase coverage by 2.00%.
The diff coverage is 95.74%.

@@            Coverage Diff             @@
##             main     #147      +/-   ##
==========================================
+ Coverage   51.95%   53.96%   +2.00%     
==========================================
  Files          18       18              
  Lines         995     1047      +52     
==========================================
+ Hits          517      565      +48     
- Misses        478      482       +4     

Flag	Coverage Δ
unittests	53.96% <95.74%> (+2.00%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
data_management/prov.py	97.84% <95.40%> (-2.16%)	⬇️
data_management/rest/views.py	78.30% <100.00%> (+0.74%)	⬆️

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[ghost]

I get a 500 error when I try to navigate to (for example) http://localhost:8000/api/prov-report/1/?format=json-ld

I'll have a look at the debug output after lunch in case I'm doing something wrong.

[antony-wilson]

I get a 500 error when I try to navigate to (for example) http://localhost:8000/api/prov-report/1/?format=json-ld

I'll have a look at the debug output after lunch in case I'm doing something wrong.

Did you install rdflib-jsonld?

[ghost]

Ah, no. Do you know how to install it for Mac? I've had a quick google and there's no Homebrew version that I can see.

[antony-wilson]

you should be able to pip install it

[ghost]

Ah ok, found the issue. It's not to pip install rdflib-jsonld. This has been deprecated and we should use the rdflib package, which we already do, but update it to version 6.0.1. I'll make this change and push it.

[ghost]

Ok, cool. Not an exhaustive test but I installed fresh from this branch directly, used the add_example_data function and then was able to generate json_ld reports for the couple of data products that I checked. Thanks @antony-wilson !

[ghost]

Should we also update the requirements.txt for the remote registry, just for consistency? Possibly a question for @alahiff ?

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

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