def main():
# create udp socket
sock = socket(AF_INET,SOCK_DGRAM)
#sock.bind(("0.0.0.0", SERVER_PORT))
# send messages to server
for i in range(0, 10):
packet = Packet()
packet.src = 25
packet.dst = 1
packet.cmd = "device.update"
packet.seq = i
packet.data = {"sys.banner":"hello world", "io.counter": i}
sock.sendto(packet.to_json(), (SERVER_IP, SERVER_PORT))
print "Packet sent: " + packet.to_json()
#time.sleep(0.001)
print("Listening for packets...")
counter = 0
while True:
# blocking read
datagram, address = sock.recvfrom(1024) # buffer size is 1024 bytes
counter = counter + 1
print("Packet received: " + str(datagram) + " ip: " + str(address) + " c: " + str(counter))
def sender(self, socket):
logger.debug('Waiting for events')
# subscribe
self.eventbus.subscribe("core")
self.eventbus.subscribe("plugin")
# listen for events
for event in self.eventbus.listen():
logger.debug("Event received: " + event.to_json())
if(event.name == "device.push"):
packet = Packet()
packet.dst = 25
packet.src = 1
packet.cmd = event.name
packet.data = event.data
#logger.debug("packet to send: " + packet.to_json())
addr = self.cache.get(packet.dst)
if(addr == None):
logger.error("Address not found for device: " + str(packet.dst))
continue
address = addr.split(":")
#address = ["192.168.1.1", 4444]
# send packet
socket.sendto(packet.to_json(), (address[0], int(address[1])))
logger.debug("Packet sent: " + packet.to_json() + " to: " + str(address))
continue
def publisher(self):
counter = 0
while True:
datagram, address = self.rq.get()
logger.debug("Packet received: " + datagram + " from ip: " + str(address))
# parse packet
try:
packet = Packet()
packet.from_json(datagram)
except Exception, err:
logger.error("could not parse packet: " + str(datagram) + " : " + str(err))
logger.debug(traceback.format_exc())
continue
# update address cache
if packet.src not in self.cache:
self.cache[packet.src] = str(address[0])+":"+str(address[1])
logger.debug('ip address registred: ' + str(packet.src) + " = " + str(address[0])+":"+str(address[1]))
# TODO: persist
elif(self.cache[packet.src] != str(address[0])+":"+str(address[1])):
self.cache[packet.src] = str(address[0])+":"+str(address[1])
# create event based on packet cmd
if packet.cmd == "device.update":
# create event
event = Event("device.update")
event.src = self.name
event.data = packet.data
event.data["sys.id"] = packet.src
else:
logger.error("unknown command")
continue;
# logger.debug("publish counter: " + str(counter))
# publish event
self.eventbus.publish(event, "adapter")
