[omniORB] Fwd: StructuredPushConsumer

[Kyle Dunn]

I am trying to craft a generic NotifyStructuredPushConsumer and am
having trouble doing: obj._narrow(CosNaming.NamingContextExt). At
runtime I receive this:

?File "notifyConsumer.py", line 33, in initCorbaOrb
? ?self.rootContextExt = obj._narrow(CosNaming.NamingContextExt)
TypeError: CORBA.Object._narrow() argument 1 must be type, not classobj

There is a good chance this is a trivial mistake, however it is
imperative for my application to be able to distinguish the naming
context.

The relevant code looks as follows:

class CorbaManager:
? ?def initCorbaOrb(self, paramDict):
? ? ? ?paramList = ['eventMan']
? ? ? ?if "orbInitRef" in paramDict:
? ? ? ? ? ?paramList.append('-ORBInitRef')
? ? ? ? ? ?paramList.append(paramDict['orbInitRef'])
? ? ? ?if "endpoint" in paramDict:
? ? ? ? ? ?paramList.append('-ORBendPoint')
? ? ? ? ? ?paramList.append(paramDict['endpoint'])
? ? ? ?print paramList
? ? ? ?self.corbaParamDict = paramDict
? ? ? ?orb = CORBA.ORB_init(paramList)
? ? ? ?#orb = CORBA.ORB_init(paramList, CORBA.ORB_ID) ORB_ID is set by CORBA

? ? ? ?obj = orb.resolve_initial_references("NameService")
? ? ? ?self.rootContextExt = obj._narrow(CosNaming.NamingContextExt)

? ? ? ?obj = orb.resolve_initial_references("RootPOA")
? ? ? ?self.poaManager = obj._get_the_POAManager()
? ? ? ?self.poaManager.activate()
? ? ? ?print "POA State: ", self.poaManager.get_state()

? ?def registerEventListeners(self, listenerList):
? ? ? ?for lInfo in listenerList:
? ? ? ? ? ?domain = lInfo['domain']
? ? ? ? ? ?channelName = lInfo['channelName']
? ? ? ? ? ?eventName = lInfo['eventName']
? ? ? ? ? ?obj = self.rootContextExt.resolve_str(domain + "/" + channelName)
? ? ? ? ? ?eventChannel = obj._narrow(CosNotifyChannelAdmin.EventChannel)
? ? ? ? ? ?adid = eventChannel.new_for_consumers(CosNotifyChannelAdmin.\

InterFilterGroupOperator._item(1))
? ? ? ? ? ?eventType = CosNotification.EventType(domain, eventName)
? ? ? ? ? ?eventAddList = [eventType]
? ? ? ? ? ?eventRemoveList = []
? ? ? ? ? ?adid[0].subscription_change(eventAddList, eventRemoveList)
? ? ? ? ? ?proxySupplierArray = adid[0].obtain_notification_push_supplier(\
? ? ? ? ? ?CosNotifyChannelAdmin.ClientType._items[1])
? ? ? ? ? ?proxySupplier = proxySupplierArray[0]
? ? ? ? ? ?structProxySupplier = (proxySupplier._narrow
? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? (CosNotifyChannelAdmin.
? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?StructuredProxyPushSupplier))

? ? ? ? ? ?self.listener = EventListener(lInfo)
? ? ? ? ? ?pushConsumer = self.listener._this()
? ? ? ? ? ?structProxySupplier.connect_structured_push_consumer(pushConsumer)

[Duncan Grisby]

Post by Kyle Dunn
I am trying to craft a generic NotifyStructuredPushConsumer and am
having trouble doing: obj._narrow(CosNaming.NamingContextExt). At
?File "notifyConsumer.py", line 33, in initCorbaOrb
? ?self.rootContextExt = obj._narrow(CosNaming.NamingContextExt)
TypeError: CORBA.Object._narrow() argument 1 must be type, not classobj

That is not an error you would get from omniORBpy. I suspect that you
have done "import CORBA" and got something other than omniORBpy (pyORBit
probably), and are trying to use omniORBpy's CosNaming module with
pyORBit.

If you use "from omniORB import CORBA", I expect the problems will go
away.

Cheers,

Duncan.