src/emuvim/cli/monitor.py

   1 """
   2 son-emu network CLI
   3 (c) 2016 by Manuel Peuster <manuel.peuster@upb.de>
   4 """
   5
   6 import argparse
   7 import pprint
   8 from tabulate import tabulate
   9 import zerorpc
  10 import time
  11
  12
  13 pp = pprint.PrettyPrinter(indent=4)
  14
  15 class ZeroRpcClient(object):
  16
  17     def __init__(self):
  18         self.c = zerorpc.Client()
  19         # TODO connect to DCNetwork API
  20         #self.c.connect("tcp://127.0.0.1:4242")  # TODO hard coded for now. we'll change this later
  21         self.c.connect("tcp://127.0.0.1:5151")
  22         self.cmds = {}
  23
  24     def execute_command(self, args):
  25         if getattr(self, args["command"]) is not None:
  26             # call the local method with the same name as the command arg
  27             getattr(self, args["command"])(args)
  28         else:
  29             print "Command not implemented."
  30
  31     def get_rate(self, args):
  32         while True:
  33             r = self.c.monitor_get_rate(
  34                 args.get("vnf_name"),
  35                 args.get("direction"))
  36             pp.pprint(r)
  37             time.sleep(1)
  38
  39
  40 parser = argparse.ArgumentParser(description='son-emu network')
  41 parser.add_argument(
  42     "command",
  43     help="Action to be executed: get_rate")
  44 parser.add_argument(
  45     "--vnf_name", "-vnf", dest="vnf_name",
  46     help="vnf name to be monitored")
  47 parser.add_argument(
  48     "--direction", "-d", dest="direction",
  49     help="in (ingress rate) or out (egress rate)")
  50
  51 def main(argv):
  52     print "This is the son-emu monitor CLI."
  53     print "Arguments: %s" % str(argv)
  54     args = vars(parser.parse_args(argv))
  55     c = ZeroRpcClient()
  56     c.execute_command(args)