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- #!/usr/bin/env python
- #############################################################################
- # Copyright (C) DSTC Pty Ltd (ACN 052 372 577) 1997, 1998, 1999
- # All Rights Reserved.
- #
- # The software contained on this media is the property of the DSTC Pty
- # Ltd. Use of this software is strictly in accordance with the
- # license agreement in the accompanying LICENSE.HTML file. If your
- # distribution of this software does not contain a LICENSE.HTML file
- # then you have no rights to use this software in any manner and
- # should contact DSTC at the address below to determine an appropriate
- # licensing arrangement.
- #
- # DSTC Pty Ltd
- # Level 7, GP South
- # Staff House Road
- # University of Queensland
- # St Lucia, 4072
- # Australia
- # Tel: +61 7 3365 4310
- # Fax: +61 7 3365 4311
- # Email: enquiries@dstc.edu.au
- #
- # This software is being provided "AS IS" without warranty of any
- # kind. In no event shall DSTC Pty Ltd be liable for damage of any
- # kind arising out of or in connection with the use or performance of
- # this software.
- #
- # Project: Fnorb
- # File: $Source: /units/arch/src/Fnorb/examples/naming/RCS/client.py,v $
- # Version: @(#)$RCSfile: client.py,v $ $Revision: 1.2 $
- #
- #############################################################################
- """ An example of a client using the naming service. """
-
-
- # Standard/built-in modules.
- import sys
-
- # Fnorb modules.
- from Fnorb.orb import CORBA
-
- # Naming Service modules.
- from Fnorb.cos.naming import CosNaming
-
- # Stubs generated by 'fnidl'.
- import Thermometer
-
-
- def main(argv):
- """ Do it! """
-
- print 'Initialising the ORB...'
-
- # Initialise the ORB.
- orb = CORBA.ORB_init(argv, CORBA.ORB_ID)
-
- # Get a reference to the initial naming service context.
- ctx = CORBA.ORB_init().resolve_initial_references("NameService")
-
- # The 'pathname' of the context that holds the thermometer references (kind
- # of equivalent to '/dev/thermometers').
- path = [CosNaming.NameComponent('dev', ''),
- CosNaming.NameComponent('thermometers', '')]
-
- # Lookup the temperatures of the thermometers in rooms 101-105, and then
- # force a lookup on a non-existent room "106"!
- for room in ["101", "102", "103", "104", "105", "106"]:
- # Create a naming service 'name' for the thermometer.
- name = path + [CosNaming.NameComponent(room, '')]
-
- try:
- # Lookup the thermometer in the naming service.
- thermometer = ctx.resolve(name)
-
- # Make sure that the object is not a 'nil object reference'
- # (represented in Python by the value 'None').
- if thermometer is None:
- raise 'Nil object reference!'
-
- # Make sure that the object implements the expected interface!
- if not thermometer._is_a(CORBA.id(Thermometer.ThermometerIF)):
- raise 'This is not a Thermometer!'
-
- # Get the temperature of the thermometer!
- print 'Temperature in', room, 'is', thermometer._get_temperature()
-
- except CosNaming.NamingContext.NotFound:
- print 'No thermometer in room', room
-
- return 0
-
- #############################################################################
-
- if __name__ == '__main__':
- # Do it!
- sys.exit(main(sys.argv))
-
- #############################################################################
-