Files
picar/DecisionSystem/CentralisedDecision/ballotvoter.py

51 lines
1.9 KiB
Python

import json
from DecisionSystem.messages import ConnectSwarm, SubmitVote, Message, deserialise, RequestVote, ClientVoteRequest, VoteResult
from multiprocessing import Pool
from messenger import Messenger
class BallotVoter:
def __init__(self, on_vote, handle_agreement, messenger: Messenger):
self.messenger = messenger
self.messenger.add_message_callback(self.on_message)
self.messenger.add_connect(self.on_connect)
self.on_vote = on_vote
self.handle_agreement = handle_agreement
def on_connect(self, rc):
print("Connected with result code " + str(rc))
# Tell commander we are now connected.
self.send_connect()
def on_message(self, message):
print("Message Received!")
messageD = deserialise(message.payload)
print("Message Type: " + messageD.type)
# Ok message.
if messageD.type == RequestVote().type:
print('Received vote message')
self.submit_vote()
elif messageD.type == "listening":
self.send_connect()
elif messageD.type == VoteResult.type:
self.handle_agreement(messageD.data["vote"])
def submit_vote(self):
v = self.on_vote()
if v == None:
print('Could not get vote')
return
print("Got Vote")
vote = SubmitVote(v, self.messenger.id)
print('Created Vote Message')
self.messenger.broadcast_message(self.messenger.swarm, vote.serialise())
print('published vote')
def send_connect(self):
# Send a connected message to let any commanders know that
# it is available.
self.messenger.broadcast_message(self.messenger.swarm, ConnectSwarm(self.messenger.id).serialise())
def request_vote(self):
"""Sends a request to the leader to start collecting votes."""
self.messenger.broadcast_message(self.messenger.swarm, ClientVoteRequest(self.messenger.id).serialise())