[pygtk] ORBit and python

Russell Strong russell at strong.id.au
Tue Sep 26 08:03:10 WST 2006


Hi,

I've been pulling my hair out the last couple of days trying to get a 
simple python/ORBit example working.

The server code ( see below ) show the following error
Traceback (most recent call last):
  File "server", line 14, in increment
    self.count += 1
AttributeError: 'Counter' object has no attribute 'count'

Adding a line print dir(self) to increment shows there really is no 
count. Huh???

The client ( see below ) shows:
Traceback (most recent call last):
  File "client", line 13, in ?
    counter.increment()
CORBA.UNKNOWN

HELP !!!

Client Code
----------------

#!/usr/bin/env python

import ORBit
ORBit.load_file ('Test.idl')
import CORBA, Test

orb = CORBA.ORB_init()
ior = open('/tmp/orbit-python.ior').readline()
counter = orb.string_to_object(ior)

for i in xrange(10001):
        try:
                counter.increment()
        except Test.Counter, data:
                print 'Overflow : ', data.count


Server Code
----------------

#!usr/bin/env python

import ORBit
ORBit.load_file('Test.idl')
import CORBA, Test, Test__POA

class Counter(Test__POA.Counter):

        def __init__(self):
                Test__POA.Counter.__init__(self)
                self.count = 0

        def increment(self):
                self.count += 1
                if self.count > 10000:
                        e = Test.TestInterface.Overflow()
                        e.count = self.count
                        raise Test.TestInterface.Overflow, e

orb = CORBA.ORB_init()
poa = orb.resolve_initial_references("RootPOA")
ref = Counter()._this()
open("/tmp/orbit-python.ior", "w").write(orb.object_to_string(ref))
poa._get_the_POAManager().activate()
orb.run()


IDL
-----
module Test {
   interface Counter {
      readonly attribute long count;
      exception Overflow { long count; };
      void increment () raises (Overflow);
   };
};




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