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Integrating Perl into language independent networked applications

by fx (Pilgrim)
on May 18, 2004 at 12:13 UTC ( [id://354234] : perlquestion . print w/replies, xml ) Need Help??

fx has asked for the wisdom of the Perl Monks concerning the following question:

I'm writing a middleware app in Perl. My basic requirements are:

- language independent
- network based

It looks like it will initially be deployed with a Java application at the frontend and probably something in C/C++ at the backend - all of which are on different machines on the same network.

What I obviously need to do is have the Java client call subroutines and get return calues from the Perl code which in turn will call functions and get return codes from the C/C++ code. And as the languages around the middleware app will probably change with time, installation or environment, I need something pretty much standard.

I have briefly looked at CORBA and found some results from searching Perlmonks.

Is CORBA a good choice? I seem to recall reading something somewhere a while back that said its popularity is decreasing.

Is there some form of platform/language independent RMI-ish implementation?

Could anyone offer some other suggestions?

Replies are listed 'Best First'.
Re: Integrating Perl into language independent networked applications
by Fletch (Bishop) on May 18, 2004 at 12:28 UTC

      I second that; from my own experience: for easy integration from the java-side use SOAP; I guess the C/C++ side will have a useable SOAP implementation too. Besides SOAP::Lite are a whole bunch of modules on CPAN waiting to ease your pain in implementing the middleware.

      SOAP has a bit more to offer compared against XMP::RPC, is nevertheless easy to handle and as good a standard as any other xml-based standard I've seen ;).

      regards,
      tomte


      An intellectual is someone whose mind watches itself.
      -- Albert Camus

        Except SOAP is a bloated designed-by-commitee implementation that has a lot of features you probably don't need :)

        My suggestion is keep it simple! XML-RPC with a single-parameter to each function, that being an XML serialized object (or equivalent) will be much easier to process and read.

        And don't forget to encrypt the stream!

Re: Integrating Perl into language independent networked applications
by dragonchild (Archbishop) on May 18, 2004 at 12:21 UTC
    Use Apache. Everyone knows how to craft an HTML request. Everyone knows how to read an HTML response. You can even have the responses be XML, binary ... whatever.

    Plus, Apache allows you to use create your own HTTP commands. So, if you don't like GET, POST, and HEAD, you can add FOO and BAR. (There's an example in the Apache2 docs for adding EMAIL.) So, you can craft your own language of HTTP messages.

    Oh - avoid Tuxedo. It sucks rocks ... and does that badly, too.

    ------
    We are the carpenters and bricklayers of the Information Age.

    Then there are Damian modules.... *sigh* ... that's not about being less-lazy -- that's about being on some really good drugs -- you know, there is no spoon. - flyingmoose

    I shouldn't have to say this, but any code, unless otherwise stated, is untested

Re: Integrating Perl into language independent networked applications
by thospel (Hermit) on May 18, 2004 at 14:12 UTC
    If you want a standard protocol with less overhead, fastCGI might be a good choice (purely as protocol between your client and your server, without a webserver involved)