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[131.254.11.144]) by smtp.gmail.com with ESMTPSA id cl2sm6011249wjc.33.2015.12.16.05.29.05 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 16 Dec 2015 05:29:05 -0800 (PST) From: Chan Ngo Content-Type: multipart/alternative; boundary="Apple-Mail=_00405CEB-D6C6-4D32-B58B-5CEB814BF546" Message-Id: <4D6A138A-AA9F-4DFB-85E8-38B44983EC11@gmail.com> Mime-Version: 1.0 (Mac OS X Mail 9.2 \(3112\)) Date: Wed, 16 Dec 2015 14:29:14 +0100 References: <8D722630-1CB1-413B-9F90-1F975FA5B64B@gmail.com> To: Paul Pelzl , OCaml Mailing List In-Reply-To: X-Mailer: Apple Mail (2.3112) Subject: Re: [Caml-list] Invoking Java programs from an OCaml program --Apple-Mail=_00405CEB-D6C6-4D32-B58B-5CEB814BF546 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii > On Dec 15, 2015, at 6:21 AM, Paul Pelzl wrote: >=20 > On Mon, Dec 14, 2015 at 9:25 AM, Chan Ngo > wrote: > An alternative, if you want to do as follows: > - Compile Java program to an executable (not jar file) > - Call this executable and get the return values from it >=20 > So you can think about Unix module in OCaml, you can use the standard I/O= to realize a communication channel between your OCaml code and the executa= ble Java. > https://ocaml.github.io/ocamlunix/ocamlunix.html >=20 >=20 > If the data to be exchanged is structurally complex, then this technique = becomes difficult; a cross-platform serialization library can be very helpf= ul for generating appropriate serialization code in multiple languages. As= one example, Cap'n Proto has bindings for both Java and OCaml: https://cap= nproto.org/otherlang.html Yes, I agree, in some cases, it will become difficult and we need a cross-p= latform serialization library. Your example is a good point. In addition, i= f you can control the source code of the Java side, you can modify the code= such that it can return the result as JSON object then the OCaml side can = get this object value to parse complex data structures. Best, --- Chan Ngo INRIA, (+33)02 99 84 72 84 chan.ngo@inria.fr http://people.rennes.inria.fr/Chan.Ngo --Apple-Mail=_00405CEB-D6C6-4D32-B58B-5CEB814BF546 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=us-ascii
=
On Dec 15, 2015, = at 6:21 AM, Paul Pelzl <= pelzlpj@gmail.com> wrote:

On Mon, Dec 14, 2015 at 9:25= AM, Chan Ngo <chan.ngo2203@gmail.com> wrote:
An alternative, if you want to do as follows:- Compile Java program to an executable (not jar file)
<= div class=3D"">- Call this executable and get the return values from it

So you can think abo= ut Unix module in OCaml, you can use the standard I/O to realize a communic= ation channel between your OCaml code and the executable Java.


If the data to be exchanged is s= tructurally complex, then this technique becomes difficult; a cross-platfor= m serialization library can be very helpful for generating appropriate seri= alization code in multiple languages.  As one example, Cap'n Proto has= bindings for both Java and OCaml: https://capnproto.org/otherlang.html
=

Yes, I= agree, in some cases, it will become difficult and we need a cross-platfor= m serialization library. Your example is a good point. In addition, if you = can control the source code of the Java side, you can modify the code such = that it can return the result as JSON object then the OCaml side can get th= is object value to parse complex data structures.

=
Best,

---
Chan Ngo
INRIA,
(+33)02 99 84 72 84
chan.ngo@inria.fr
http://people.ren= nes.inria.fr/Chan.Ngo

<= /body>= --Apple-Mail=_00405CEB-D6C6-4D32-B58B-5CEB814BF546--