class NatMonitor():
def __init__(self, tenant_id, graph_id, vnf_id):
self.natController = NatController()
self.interfaceController = InterfaceController()
self.natTableController = NatTableController()
self.tenant_id = tenant_id
self.graph_id = graph_id
self.vnf_id = vnf_id
self.configuration_interface = None
self.interfacesMonitor = None
self.natTableMonitor = None
def set_initial_configuration(self, initial_configuration):
curr_interfaces = self.interfaceController.get_interfaces()
self.interfacesMonitor = InterfacesMonitor(self, curr_interfaces)
curr_natTable = self.natController.get_nat_table()
self.natTableMonitor = NatTableMonitor(self, curr_natTable)
logging.debug("Setting initial configuration...")
self.natController.set_configuration(initial_configuration)
logging.debug("Setting initial configuration...done!")
def get_address_of_configuration_interface(self, configuration_interface):
self.configuration_interface = configuration_interface
return self.natController.get_interface_ipv4Configuration_address(
configuration_interface)
def start(self):
threads = []
threads.append(
Thread(target=self.interfacesMonitor.start_monitoring, args=()))
threads.append(
Thread(target=self.natTableMonitor.start_monitoring, args=()))
# Start all threads
for t in threads:
t.start()
# Wait for all of them to finish
for t in threads:
t.join()
def publish_on_bus(self, url, method, data):
msg = self.tenant_id + "." + self.graph_id + "." + self.vnf_id + "/" + url
body = {}
if method is not None:
body['event'] = method.upper()
else:
body['event'] = "PERIODIC"
body['timestamp'] = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
body['data'] = data
MessageBusController().publish_on_bus(
msg, json.dumps(body, indent=4, sort_keys=True))
def put(self):
"""
Update the nat configuration
"""
try:
natController = NatController()
json_data = json.loads(request.data.decode())
natController.set_configuration(json_data)
return Response(status=202)
except Exception as err:
return Response(json.dumps(str(err)), status=500, mimetype="application/json")