def event_subscriber(channel_name, p_client_id, kube_add):
subscriber = Subscriber(kube_add)
cancel_token = ListenerCancellationToken()
sub_req = SubscribeRequest(channel=channel_name,
client_id=p_client_id,
events_store_type=EventsStoreType.Undefined,
events_store_type_value=0,
group="",
subscribe_type=SubscribeType.Events)
subscriber.subscribe_to_events(sub_req, handle_incoming_events,
handle_incoming_error, cancel_token)
print("sub for 2 seconds")
time.sleep(2.0)
print("Canceled token")
cancel_token.cancel()
def subcribe_to_event_store(queue_name, client_id, kube_add):
subscriber = Subscriber(kube_add)
cancel_token = ListenerCancellationToken()
sub_req = SubscribeRequest(
channel="MyTestChannelNameStore",
client_id=str(randint(9, 19999)),
events_store_type=EventsStoreType.StartFromFirst,
events_store_type_value=0,
group="",
subscribe_type=SubscribeType.EventsStore)
subscriber.subscribe_to_events(sub_req, handle_incoming_events,
handle_incoming_error, cancel_token)
print("sub for 2 seconds")
time.sleep(2.0)
print("Canceled token")
cancel_token.cancel()
if event:
print("Subscriber Received Event: Metadata:'%s', Channel:'%s', Body:'%s tags:%s'" % (
event.metadata,
event.channel,
event.body,
event.tags
))
def handle_incoming_error(error_msg):
print("received error:%s'" % (
error_msg
))
if __name__ == "__main__":
print("Subscribing to event on channel example")
cancel_token=ListenerCancellationToken()
# Subscribe to events with store
subscriber = Subscriber("localhost:50000")
subscribe_request = create_subscribe_request(SubscribeType.EventsStore, EventsStoreType.StartAtSequence, 2)
subscriber.subscribe_to_events(subscribe_request, handle_incoming_events,handle_incoming_error,cancel_token)
# Subscribe to events without store
subscriber = Subscriber("localhost:50000")
subscribe_request = create_subscribe_request(SubscribeType.Events)
subscriber.subscribe_to_events(subscribe_request, handle_incoming_events,handle_incoming_error,cancel_token)
input("Press 'Enter' to stop Listen...\n")
cancel_token.cancel()
input("Press 'Enter' to stop the application...\n")
if __name__ == "__main__":
lett_dig = string.ascii_letters + string.digits
channel = ''.join(random.choice(lett_dig) for i in range(5))
group_name = 'group1'
cancel_token = ListenerCancellationToken()
try:
subscriber_a = Subscriber("localhost:50000")
subscribe_request_a = create_subscribe_request(
SubscribeType.EventsStore,
'python-sdk-cookbook-pubsub-events-store-load-balance-receiver-a',
EventsStoreType.StartFromFirst, 0, channel, group_name)
subscriber_a.subscribe_to_events(subscribe_request_a,
handle_incoming_events_receiver_a,
handle_incoming_error, cancel_token)
subscriber_b = Subscriber("localhost:50000")
subscribe_request_b = create_subscribe_request(
SubscribeType.EventsStore,
'python-sdk-cookbook-pubsub-events-store-load-balance-receiver-b',
EventsStoreType.StartFromFirst, 0, channel, group_name)
subscriber_b.subscribe_to_events(subscribe_request_b,
handle_incoming_events_receiver_b,
handle_incoming_error, cancel_token)
subscriber_c = Subscriber("localhost:50000")
subscribe_request_c = create_subscribe_request(
SubscribeType.EventsStore,
'python-sdk-cookbook-pubsub-events-store-load-balance-v',