+class TrafficGeneratorProducer(producer.MessagingProducer):
+ """Class implementing the message producer for traffic generators
+
+ This message producer must be instantiated in the process created
+ "run_traffic" process.
+ """
+ def __init__(self, _id):
+ super(TrafficGeneratorProducer, self).__init__(messaging.TOPIC_TG,
+ _id=_id)
+
+ def tg_method_started(self, version=1):
+ """Send a message to inform the traffic generation has started"""
+ self.send_message(
+ messaging.TG_METHOD_STARTED,
+ payloads.TrafficGeneratorPayload(version=version, iteration=0,
+ kpi={}))
+
+ def tg_method_finished(self, version=1):
+ """Send a message to inform the traffic generation has finished"""
+ self.send_message(
+ messaging.TG_METHOD_FINISHED,
+ payloads.TrafficGeneratorPayload(version=version, iteration=0,
+ kpi={}))
+
+ def tg_method_iteration(self, iteration, version=1, kpi=None):
+ """Send a message, with KPI, once an iteration has finished"""
+ kpi = {} if kpi is None else kpi
+ self.send_message(
+ messaging.TG_METHOD_ITERATION,
+ payloads.TrafficGeneratorPayload(version=version,
+ iteration=iteration, kpi=kpi))
+
+