def workaround():
# if this is the first time the demo is loaded, re-initialize the controller
global firstTime
if firstTime:
cont = Controller.getInstance()
cont.reinit()
firstTime = False
reloadall()
from layer2.testbed.topology import TestbedTopology
from layer2.vpn.l2vpn import SDNPopsRenderer, SDNPopsIntent
from net.es.netshell.controller.core import Controller
import random
from layer2.common.utils import InitLogger, Logger
from layer2.vpn.reload import reloadall
if not "firstTime" in globals():
firstTime = True
# TODO collect into a global variable demo might be a good idea
try:
if topo == TestbedTopology(): # singleton
print "Reloading modules"
reloadall()
if topo == TestbedTopology(): # singleton
print "Please reload first"
else: # rare situation; topo might be reloaded in python interactive intepreter manually
topo = None
except: # the case that topo is not existed (in the very begining) yet
topo = None
renderers = []
rendererIndex = {}
vpns = [] # used in vpn.py only
vpnIndex = {} # used in vpn.py only
def workaround():
# if this is the first time the demo is loaded, re-initialize the controller
global firstTime
