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#!/usr/bin/env python
# **********************************************************************
#
# Copyright (c) 2003-2007 ZeroC, Inc. All rights reserved.
#
# This copy of Ice is licensed to you under the terms described in the
# ICE_LICENSE file included in this distribution.
#
# **********************************************************************
import sys, threading, Ice, IceGrid
Ice.loadSlice('Hello.ice')
import Demo
def menu():
print """
usage:
t: send greeting as twoway
x: exit
?: help
"""
class SessionKeepAliveThread(threading.Thread):
def __init__(self, session, timeout):
threading.Thread.__init__(self)
self._session = session
self._timeout = timeout
self._terminated = False
self._cond = threading.Condition()
def run(self):
self._cond.acquire()
try:
while not self._terminated:
self._cond.wait(self._timeout)
if self._terminated:
break
try:
self._session.keepAlive()
except Ice.LocalException, ex:
break
finally:
self._cond.release()
def terminate(self):
self._cond.acquire()
try:
self._terminated = True
self._cond.notify()
finally:
self._cond.release()
class Client(Ice.Application):
def run(self, args):
status = True
registry = IceGrid.RegistryPrx.checkedCast(self.communicator().stringToProxy("DemoIceGrid/Registry"))
if registry == None:
print self.appName() + ": could not contact registry"
return False
while True:
print "This demo accepts any user-id / password combination."
id = raw_input("user id: ").strip()
pw = raw_input("password: ").strip()
try:
session = registry.createSession(id, pw)
break
except IceGrid.PermissionDeniedException, ex:
print "permission denied:\n" + ex.reason
keepAlive = SessionKeepAliveThread(session, registry.getSessionTimeout() / 2)
keepAlive.start()
try:
hello = Demo.HelloPrx.checkedCast(session.allocateObjectById(self.communicator().stringToIdentity("hello")))
menu()
c = None
while c != 'x':
try:
c = raw_input("==> ")
if c == 't':
hello.sayHello()
elif c == 'x':
pass # Nothing to do
elif c == '?':
menu()
else:
print "unknown command `" + c + "'"
menu()
except EOFError:
break
except KeyboardInterrupt:
break
except IceGrid.AllocationException, ex:
print self.appName() + ": could not allocate object: " + ex.reason
status = False
except IceGrid.ObjectNotRegisteredException:
print self.appName() + ": object not registered with registry"
status = False
except:
print self.appName() + ": could not allocate object: " + str(sys.exc_info()[0])
status = False
#
# Destroy the keepAlive thread and the sesion object otherwise
# the session will be kept allocated until the timeout occurs.
# Destroying the session will release all allocated objects.
#
keepAlive.terminate()
keepAlive.join()
session.destroy();
return status
app = Client()
sys.exit(app.main(sys.argv, "config.client"))
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