def __init__(self, pplan_helper, in_stream, out_stream, looper,
sys_config):
super(SpoutInstance, self).__init__(pplan_helper, in_stream,
out_stream, looper, sys_config)
self.topology_state = topology_pb2.TopologyState.Value("PAUSED")
if not self.pplan_helper.is_spout:
raise RuntimeError("No spout in physicial plan")
context = self.pplan_helper.context
self.spout_metrics = SpoutMetrics(self.pplan_helper)
self.serializer = SerializerHelper.get_serializer(context)
# acking related
self.acking_enabled = context.get_cluster_config().get(
constants.TOPOLOGY_ENABLE_ACKING, False)
self.enable_message_timeouts = \
context.get_cluster_config().get(constants.TOPOLOGY_ENABLE_MESSAGE_TIMEOUTS)
Log.info("Enable ACK: %s" % str(self.acking_enabled))
Log.info("Enable Message Timeouts: %s" %
str(self.enable_message_timeouts))
# map <tuple_info.key -> tuple_info>, ordered by insertion time
self.in_flight_tuples = collections.OrderedDict()
self.immediate_acks = collections.deque()
self.total_tuples_emitted = 0
# load user's spout class
spout_impl_class = super(SpoutInstance,
self).load_py_instance(is_spout=True)
self.spout_impl = spout_impl_class(delegate=self)
def __init__(self, pplan_helper, in_stream, out_stream, looper):
super(SpoutInstance, self).__init__(pplan_helper, in_stream,
out_stream, looper)
self.topology_state = topology_pb2.TopologyState.Value("PAUSED")
if not self.pplan_helper.is_spout:
raise RuntimeError("No spout in physicial plan")
context = self.pplan_helper.context
self.spout_metrics = SpoutMetrics(self.pplan_helper)
# acking related
mode = context.get_cluster_config().get(
api_constants.TOPOLOGY_RELIABILITY_MODE,
api_constants.TopologyReliabilityMode.ATMOST_ONCE)
self.acking_enabled = bool(
mode == api_constants.TopologyReliabilityMode.ATLEAST_ONCE)
self.enable_message_timeouts = \
context.get_cluster_config().get(api_constants.TOPOLOGY_ENABLE_MESSAGE_TIMEOUTS)
self._initialized_metrics_and_tasks = False
Log.info("Enable ACK: %s" % str(self.acking_enabled))
Log.info("Enable Message Timeouts: %s" %
str(self.enable_message_timeouts))
# map <tuple_info.key -> tuple_info>, ordered by insertion time
self.in_flight_tuples = collections.OrderedDict()
self.immediate_acks = collections.deque()
self.total_tuples_emitted = 0
# load user's spout class
spout_impl_class = super(SpoutInstance,
self).load_py_instance(is_spout=True)
self.spout_impl = spout_impl_class(delegate=self)
