def _process_event(self, event):
event = Event.from_map(event)
current_status = self.__get_member_status(event.node)
if not current_status:
return
if event.event == 'alive':
if (current_status.status == 'suspect'
and event.incarnation > current_status.incarnation):
self.events.append(event)
new_status = NodeStatus.from_event(event)
self.__set_member_status(event.node, new_status)
elif (current_status == 'alive'
and event.incarnation > current_status.incarnation):
self.events.append(event)
new_status = NodeStatus.from_event(event)
self.__set_member_status(event.node, new_status)
elif event.event == 'suspect':
if event.node == self.name:
self.__incarnation += 1
self.events.append(
Event('alive', self.name, self.__incarnation))
elif (current_status.status == 'suspect'
and event.incarnation > current_status.incarnation):
self.events.append(event)
new_status = NodeStatus.from_event(event)
self.__set_member_status(event.node, new_status)
elif (current_status.status == 'alive'
and event.incarnation >= current_status.incarnation):
self.events.append(event)
new_status = NodeStatus.from_event(event)
self.__set_member_status(event.node, new_status)
elif event.event == 'dead':
if event.node == self.name:
self.__incarnation += 1
self.events.append(
Event('alive', self.name, self.__incarnation))
elif event.incarnation >= current_status.incarnation:
self.events.append(event)
self._handle_node_down(event.node)
elif (event.event == 'join' and self.name != event.node
and event.node not in self.node_status):
self.events.append(event)
self._handle_node_join(self, event.node)
