def _handler_switch_enter(self, ev):
"""
Handler for event.EventSwitchEnter
Add a node to the topology.
"""
switch = Switch(ev.switch)
# Check switch capabilities
self.switches[ev.switch.dp.id] = switch
# HARDCODED
for p in switch.switch.ports:
if self._check_if_ap_port(p):
ap_conf = self._get_ap_conf(switch, p)
switch.is_ap = True
switch.ap_conf = ap_conf
self.accesspoints[ev.switch.dp.id] = switch
elif self._check_if_gw_port(p):
gw_conf = self._get_gw_conf(switch, p)
switch.is_gw = True
switch.gw_conf = gw_conf
self.gateways[ev.switch.dp.id] = switch
self._initialise_switch_of_tables(switch)
ev_tu = EventSwitchEnter(switch)
self.send_event_to_observers(ev_tu)
ev_tu = EventTopologyUpdate(self.switches)
self.send_event_to_observers(ev_tu)
self.logger.info("Switch <" + str(hex(switch.switch.dp.id)) + "> connected")
