Re: [Caml-list] Library recompilation with OCamljava

[Kenneth Adam Miller <kennethadammiller@gmail.com>]

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So, after doing some more work, I think the answer to 2) is no/no. After
looking more into piqi, I now just need to find a way to do protocol
buffers based RPC to an ocaml service...

Anybody know how to do that?

On Thu, Oct 16, 2014 at 4:08 AM, Kenneth Adam Miller <
kennethadammiller@gmail.com> wrote:

> So, I'm attempting a large library recompile with ocamljava. It's pretty
> audacious, because some people in my workplace are rather unwilling to
> learn ocaml, yet a very well respected and needed library is authored in
> it. Everyone knows java, so we hope very much to recompile the library just
> with ocamljava.
>
> Two important things that make me nervous in pursuing this effort are:
>
> 1) once fully recompiled, will the library work in java as it did with
> native/ocaml byte code?
>
> I've already started modifying the popular OCamlMakefile project to add a
> java-byte-code target, and I've found that a threaded example is admitted
> by the compiler produces an uncaught exception when run on the JVM... That
> example may fall out of what the ocamljava docs has been safely implemented
> under ocamljava, I'm not sure...
>
> 2) I've noticed that the rather large library that I need to compile, as
> my final target, and aside from the toy targets I'm testing ocamljava with,
> actually consumes some other C libraries and functions in it's dependency
> path...
>
> This is difficult; the traditional OCamlMakefile builds traditional c
> stubs to .o files, correctly compiled with ocamlc. But when put on the
> ocamljava command line, but ocamljava doesn't know what to do about it.
> Would there be any way that I can have support for this ocaml feature as
> well, or facilitate some way to link in or enable ocaml code that calls
> into C being compiled down to java?
>
> 3) What if the answer to 2) is no/no?
>
> If I can't use ocamljava, which is the most desired and elegant way,
> allowing beautiful language inter-operation, how can I *best* facilitate
> calls to the ocaml library? Is there a fast way to generate callbacks to
> ocaml in java or any other language? It's very highly preferable not to
> have to delegate back through the JNI due to type safety and fragility.
> Alternatively, I looked at the OCaml library Restful, and wondered to
> myself if there could be any kind of fast definition between ocaml types
> and an exchange language, like json or something. Ideally, I'd like to be
> able to generate a url per function in a very very simple declarative
> manner, so that I can take ocaml libraries, and make them operate as a
> service, where ocaml library functions correspond to URLs.
>
>

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