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lilstevey (4628)

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Journal of lilstevey (4628)

Monday November 09, 2009
06:28 PM

more tentative perl6 hacking

[ #39867 ]

A little more work. Following some wise words in masak's journal about starting simple, I decided to take further tentative tiptoes further towards my target of a transparent Role-As-Interface based RMI system by first of all just hacking together a call from client to server. Following a visit to the lovely people on #perl6 I got a pointer to the perl6 test suite which, when read with the synopsis & apocalypse documents, seems to give a reasonable set of reference documents.

Anyway, squeezing this around other commitments, I hacked LWP::Simple and HTTP::Daemon around a little, and created the following files:
use v6;
use RmiClient;

my $r = => "http://localhost:8888/");

say $r.proxy("Greet");
use v6;
use LWP::Simple;

class RmiClient
   has $url;

   method proxy( $method )
      my $s = LWP::Simple.get($url~$method); # "http://localhost:8080/"
      my ($r1,@r2) = split(/\n\n/,$s);
      my $r2 = join '\n\n',@r2;
      return $r2;


Thats the client side of this simple test, now onto the server side.
use v6;
use Adapter;
use TestClass;

my $tc =;
my $a = clzz => $tc );

use v6;
use HTTP::Daemon;
use TestClass;

class Adapter
   has TestClass $clzz;

   method startServer()

      my HTTP::Daemon $d .= new;
      say "see {$d.url}";
      while my HTTP::Daemon::ClientConn $c = $d.accept {
      while my HTTP::Request $r = $c.get_request {
      if $r.method eq 'GET' {
      else {
         warn "{$r.method} {$r.url.path}";


use v6;

class TestClass

   method Greet()
      return "Hello World";


That is quite filthy, but a start. Next up is one of two things:

  1. trying to make implementing a client as simple as passing a Role-As-Interface into some manner of magical constructor/repository.
  2. Passing a Role-As-Interface and implementing class into some manner of thingy on the server that exposes methods defined in the Role-As-Interface and implements them using said class.

These "simple" steps may possibly include a tour round some other areas, including a look at serialisation, dependency injections, singletons... Still only one way to eat an elephant...

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