def setUp(self):
# Replica fixture
simulation = get_mock_simulation()
replica = lambda: random.choice(simulation.replicas)
# Version fixtures
a = Version.new('A')(replica())
b = Version.new('B')(replica())
c = Version.new('C')(replica())
d = Version.new('D')(replica())
# Create mock log
self.log = MultiObjectWriteLog()
for obj in (a, b, c):
self.log.append(obj, 1)
# Create unordered log objects.
self.log.append(a.nextv(replica()), 2)
self.log.append(a.nextv(replica()), 2)
self.log.append(a.nextv(replica()), 2)
self.log.append(a.nextv(replica()), 3)
self.log.append(a.nextv(replica()), 3)
self.log.append(b.nextv(replica()), 3)
self.log.append(b.nextv(replica()), 4)
self.log.append(b.nextv(replica()), 4)
self.log.append(c.nextv(replica()), 4)
self.log.append(d, 5)
self.log.commitIndex = 9
def __init__(self, simulation, **kwargs):
## Initialize the replica
super(RaftReplica, self).__init__(simulation, **kwargs)
## Initialize Raft Specific settings
self.state = State.FOLLOWER
self.currentTerm = 0
self.votedFor = None
self.log = MultiObjectWriteLog()
self.cache = {}
## Policies
self.read_policy = ReadPolicy.get(kwargs.get('read_policy', READ_POLICY))
self.aggregate_writes = kwargs.get('aggregate_writes', AGGREGATE_WRITES)
## Timers for work
eto = kwargs.get('election_timeout', ELECTION_TIMEOUT)
hbt = kwargs.get('heartbeat_interval', HEARTBEAT_INTERVAL)
self.timeout = ElectionTimer.fromReplica(self, eto)
self.heartbeat = Timer(self.env, hbt, self.on_heartbeat_timeout)
## Leader state
self.nextIndex = None
self.matchIndex = None
