Re: [rdf4j-dev] How to contribute an Rdf4j/Spring integration

[Florian Kleedorfer <florian.kleedorfer@xxxxxxxxxx>]

Hi Jeen,

Good to hear that this may be of interest.

Am 2021-05-18 01:26, schrieb Jeen Broekstra:
> Can you share a bit more about the background of the project? Did you
> write it on your own or with other developers?

There is a little code from one other developer whose consent to 
contributing will very likely not be a problem. I am also expecting to 
get our employer's consent and that of the company we are doing the 
project for.

> Is it already
> open-source?

No.

> And of course I'd definitely like to learn more about the
> code itself, any use cases or examples that you can share would be
> good.

Here are a few classes (some shortened):

https://gist.github.com/fkleedorfer/990de5e3591b35f2d92e2f8f9248516e
There's:
* the spring Configuration.java showing how the RepositoryConnection is 
pooled and wrapped in a caching and optionally a logging layer, how the 
Rdf4jTemplate is instantiated, and how you can autodetect all your DAOs
* the Rdf4JTemplate (that one may be a little messy for some tastes but 
we can clean it up)
* the DAO base class, Rdf4JDao
* a domain-specific 'ProjectDao' that uses all of this to provide some 
CRUD operations


Can you give us an estimate of how large the contribution would
> be, roughly (lines of code)?

It's about 5400 lines of java code.

> Finally, a question for the future: assuming that we go ahead and
> integrate your contribution into RDF4J, are you intending to stay
> involved with maintaining it?

Yes. Availability may vary but I'd like to.


Best regards,
Florian