testserver.py :  » Database » Python-Remote-Objects » Pyro-3.10 » examples » Python Open Source

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Python Open Source » Database » Python Remote Objects 
Python Remote Objects » Pyro 3.10 » examples » testserver.py
#
#  Test server base implementation, used by a lot of the tests,
#  to avoid having to repeat this boilerplate code time after time.
#

import sys
import Pyro.naming
import Pyro.core
from Pyro.protocol import getHostname
from Pyro.errors import PyroError,NamingError

group = ':test'   # the namespace group for all test servers


######## main program

# objClass = the class of the Pyro implementation object
# objName = the name for the object to register in the Name Server
# delegate = whether to use the delegate approach or the regular
#            objBase subclassing approach

def start(objClass, objName, delegate=0):
  # initialize the server and set the default namespace group
  Pyro.core.initServer()
  Pyro.config.PYRO_NS_DEFAULTGROUP=group

  # locate the NS
  daemon = Pyro.core.Daemon()
  locator = Pyro.naming.NameServerLocator()
  print 'searching for Naming Service...'
  ns = locator.getNS()
  print 'Naming Service found at',ns.URI.address,'('+(Pyro.protocol.getHostname(ns.URI.address) or '??')+') port',ns.URI.port

  # make sure our namespace group exists
  try:
    ns.createGroup(group)
  except NamingError:
    pass

  daemon.useNameServer(ns)

  # connect a new object implementation (first unregister previous one)
  try:
    ns.unregister(objName)
  except NamingError:
    pass

  if delegate:
    print 'Delegation...'
    # use Deletation approach
    obj=Pyro.core.ObjBase()
    obj.delegateTo(objClass())
    daemon.connect(obj,objName)
  else:
    # use regular ObjBase subclassing approach
    obj=objClass()
    daemon.connect(obj,objName)

  # enter the service loop.
  print 'Server object "'+objName+'" ready.'
  try:
    # daemon.setTimeout(5)
    daemon.requestLoop()
  except KeyboardInterrupt:
    print 'shutting down gracefully.'
  daemon.disconnect(obj)
  daemon.shutdown()
  print 'Exiting.'


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