def handle_reconfig_request(self):
""" Create and return state clone """
self.clone()
with open('data/clone.tar.gz', 'r') as fh:
toreturn = fh.read()
log.debug("cloned state added successfully")
return toreturn
def join_request(self):
""" Command Congregate instance to join its peers by supplying credentials """
log.debug("attempting to join")
try:
with open(self.conf['certfile'], 'r') as fh:
cert = fh.read()
with open(self.conf['keyfile'], 'r') as fh:
pubkey = fh.read()
wss = self.conf['p_wss']
self.loop.run_until_complete(self.c.handle_join(wss,pubkey,cert))
except Exception as e:
log.debug(e)
def mainloop(self, websocket, path):
try:
input_msg = yield from websocket.recv()
log.debug("< {}".format(input_msg))
if self.conf['use_single_port']:
output_msg = self.direct_msg(input_msg)
else: #using this port for external requests only
output_msg = yield from self.handle_external_request(input_msg)
if output_msg:
yield from websocket.send(output_msg)
#self.bmsgs.append(output_msg)
else:
yield from websocket.send("Hello from Congregate!")
log.error("got bad input from peer")
# adapt here
# reconfig requests
except Exception as e:
log.debug(input_msg)
log.error("mainloop exception: {}".format(e))
def __init__(self):
""" Initialize system state and components """
try:
# Load state
self.startup() # TODO make an init without cloned state an option
# Create main event loop
self.loop = asyncio.get_event_loop()
# Create BPCon instance
self.bpcon = BPConProtocol(self.conf, self.state)
self.state.groups['G1'] = self.bpcon.peers # connect BPCon to Congregate instance
self.paxos_server = websockets.serve(self.bpcon.main_loop, self.conf['ip_addr'], self.conf['port'], ssl=self.conf['ssl'])
self.loop.run_until_complete(self.paxos_server)
log.info("Started BPCon on port {}".format(self.conf['port']))
# Create Congregate instance
self.c = CongregateProtocol(self.loop, self.conf, self.bpcon)
self.congregate_server = websockets.serve(self.c.main_loop, self.conf['ip_addr'], self.conf['port']+1, ssl=self.conf['ssl'])
self.loop.run_until_complete(self.congregate_server)
log.info("Started Congregate on port {}".format(self.conf['port']+1))
# Create API server
self.web_server = websockets.serve(self.mainloop, self.conf['ip_addr'], self.conf['port']+2)
self.loop.run_until_complete(self.web_server)
log.info("Started Web Server on port {}".format(self.conf['port']+2))
# Add self to local group
log.debug("adding self to local group")
self.join_request()
# Testing
if self.conf['is_client']:
#self.c.reconfig()
log.debug("is client. making test requests")
for x in range(1):
request = "P,{},hello{}".format(x,x)
self.local_request("P,test,value")
self.local_request("P,test1,value1")
self.local_request("P,test2,value2")
self.local_request("P,test,value3")
self.local_request("D,test2,")
self.local_request(request)
log.debug("requests complete")
else:
#self.c.request_split()
self.local_request("S,,")
#self.c.request_merge("G2")
self.group_request("M", "G2")
except Exception as e:
log.info(e)
def group_request(self, req_type, target_group):
log.debug("group request initiated")
self.loop.run_until_complete(self.c.make_2pc_request(req_type, target_group))