def loop(self):
self.ping = Ping('free.fr', 'yahoo.fr', 'voila.fr', 'www.doctissimo.fr')
while True:
try:
self.lazy_loop()
self.ping.lazy_start()
r = self.ping.poll()
if r is not None:
success, target, message = r
self.publish('ping/%s' % target, json.dumps(
[self.name, success, message]), qos=1)
print ".",
except socket.error as e:
print "oups", e
class MetaClient(object):
def __init__(self, servers, name=None):
self.client = None
self.channels = set()
self.setServers(servers)
if name is None:
self.name = socket.gethostname()
else:
self.name = name
def setServers(self, servers):
random.shuffle(servers)
self.servers = servers
self.n_server = 0
def reconnect(self):
server = self.servers[self.n_server]
self.n_server = (self.n_server + 1) % len(self.servers)
a = server.split(":")
if len(a) == 1:
ip, port = a[0], 1883
else:
ip, port = a[0], int(a[1])
hostname = socket.gethostname()
self.client = paho.Client('ping/%s' % hostname, False)
self.client.will_set('rip/agent/%s' % hostname, qos=1)
self.client.on_connect = self.on_connect
#self.client.reconnect_delay_set(10, 3600, True)
self.client.on_message = self.on_message
self.client.on_disconnect = self.on_disconnect
print "try to connect to", ip, port
self.client.connect(ip, port=port)
def lazy_loop(self):
if self.client is None or self.client._sock is None:
self.reconnect()
self.client.loop()
def subscribe(self, path):
self.channels.add(path)
def publish(self, topic, payload=None, qos=0, retain=False):
self.client.publish(topic, payload=payload, qos=qos, retain=retain)
def on_disconnect(self, mosq, obj, rc):
print "disconnect", mosq
def on_connect(self, mosq, obj, rc, dummy):
print "connect", self.client._host, self.client._port, rc
for channel in self.channels:
mosq.subscribe(channel)
def on_message(self, mosq, obj, msg):
print msg.topic, msg.mid
print msg.payload
if msg.topic == "watch":
print "change watch"
targets = msg.payload.split(' ')
random.shuffle(targets)
self.ping.targets = targets
# FIXME python3 hates string type mismatch
#print("Message received on topic "+msg.topic+" with id "+str(msg.mid)+
#" with QoS "+str(msg.qos)+" and payload "+msg.payload)
def loop(self):
self.ping = Ping('free.fr', 'yahoo.fr', 'voila.fr', 'www.doctissimo.fr')
while True:
try:
self.lazy_loop()
self.ping.lazy_start()
r = self.ping.poll()
if r is not None:
success, target, message = r
self.publish('ping/%s' % target, json.dumps(
[self.name, success, message]), qos=1)
print ".",
except socket.error as e:
print "oups", e
