def __init__(self):
super(Backup, self).__init__()
self.is_leader_down = False
self.received_keepalive_msg = False
self.last_received_values = None
self.c_inf = ComputeInterface()
self.logger.info("Backup initialized")
class Leader(Component):
def __init__(self):
super(Leader, self).__init__()
self.c_inf = ComputeInterface()
self.logger.info("Leader initialized")
def on_clock(self):
msg = self.clock.recv_pyobj()
self.logger.info("sending keepalive")
self.backuplink.send_pyobj(msg)
def on_providermsg(self):
tempPG = self.providermsg.recv_pyobj()
x = self.c_inf.compute_result(tempPG)
self.logger.info(str(x))
if x[1] <= 0.97:
self.logger.info("result found, sending %f", x[1])
self.resultready.send_pyobj(x[1])
else:
self.logger.info("stable state")
class Backup(Component):
def __init__(self):
super(Backup, self).__init__()
self.is_leader_down = False
self.received_keepalive_msg = False
self.last_received_values = None
self.c_inf = ComputeInterface()
self.logger.info("Backup initialized")
def on_leadermsg(self):
msg = self.leadermsg.recv_pyobj()
self.received_keepalive_msg = True
self.is_leader_down = False
self.logger.info("Heartbeat message received")
def on_clock(self):
msg = self.clock.recv_pyobj()
if (self.received_keepalive_msg == False):
#No message from leader in the last 3.5s
self.logger.info(
"No keepalive messages received for the timeout, backup assuming leader role at %f",
msg)
self.is_leader_down = True
self.received_keepalive_msg = False
def on_providermsg(self):
tempPG = self.providermsg.recv_pyobj()
self.last_received_values = tempPG
#Add additional checks for leader operation?
if self.is_leader_down:
x = self.c_inf.compute_result(tempPG)
'''result = self.c_inf.compute_result(tempPG)
if(result.success and result.x[1] <= 0.97 ):
self.logger.info("result found, sending %f", result.x[1])
self.resultready.send_pyobj(result.x[1])'''
if x[1] <= 0.97:
self.logger.info("result found, sending %f", x[1])
self.resultready.send_pyobj(x[1])
else:
self.logger.info("stable state")
def __init__(self):
super(Leader, self).__init__()
self.c_inf = ComputeInterface()
self.logger.info("Leader initialized")