SPARQLRepository should support custom additional query parameters

[pulquero]

Problem description

Currently, there exists SPARQLRepository.setAdditionalHTTPHeaders() to deal with custom headers required for interacting with certain stores. But, there is no equivalent for query parameters, and there is no good way to easily extend SPARQLRepository to add this functionality (at the moment, you have to copy+paste the entire class and then some).

Preferred solution

It would be nice if SPARQLRepository either directly or made it simpler to support custom query parameters.

Are you interested in contributing a solution yourself?

None

Alternatives you've considered

Creating a HttpClient delegate to wrap the configured HttpClient returned by session manager and then injecting additional query parameters into it.

Anything else?

No response