def _state_change_callback(self, prev_state, state, event):
"""
Host state change callback
"""
from nfv_vim import directors
DLOG.info(
"Host %s FSM State-Change: prev_state=%s, state=%s, event=%s." %
(self.name, prev_state, state, event))
self._elapsed_time_in_state = 0
self._last_state_timestamp = timers.get_monotonic_timestamp_in_ms()
if self.is_locking() and host_fsm.HOST_STATE.DISABLED == self.state:
if nfvi.objects.v1.HOST_ADMIN_STATE.LOCKED \
== self.nfvi_host.admin_state:
self._action = self._ACTION_NONE
if self.is_unlocking():
if nfvi.objects.v1.HOST_ADMIN_STATE.UNLOCKED \
== self.nfvi_host.admin_state:
self._action = self._ACTION_NONE
self._persist()
host_director = directors.get_host_director()
host_director.host_state_change_notify(self)
def complete(self, result, reason):
"""
Disable Host Task Complete
"""
if self.aborted():
DLOG.debug("Task (%s) complete, but has been aborted." %
self._name)
else:
from nfv_vim import directors
host_director = directors.get_host_director()
host_director.host_disabled(self._host)
DLOG.debug("Task (%s) complete." % self._name)
event_data = dict()
event_data['reason'] = reason
if state_machine.STATE_TASK_RESULT.SUCCESS == result:
self._host.fsm.handle_event(HOST_EVENT.TASK_COMPLETED,
event_data)
else:
self._host.fsm.handle_event(HOST_EVENT.TASK_FAILED, event_data)
def nfvi_host_state_change(self,
nfvi_admin_state,
nfvi_oper_state,
nfvi_avail_status,
nfvi_data=None):
"""
NFVI Host State Change
"""
if nfvi_data is not None:
self._nfvi_host.nfvi_data = nfvi_data
self._persist()
if nfvi.objects.v1.HOST_ADMIN_STATE.UNKNOWN == nfvi_admin_state:
DLOG.info("Ignoring unknown administrative state change for %s." %
self._nfvi_host.name)
return
if nfvi.objects.v1.HOST_OPER_STATE.UNKNOWN == nfvi_oper_state:
DLOG.info("Ignoring unknown operation state change for %s." %
self._nfvi_host.name)
return
if nfvi_admin_state != self._nfvi_host.admin_state \
or nfvi_oper_state != self._nfvi_host.oper_state \
or nfvi_avail_status != self._nfvi_host.avail_status:
DLOG.debug("Host State-Change detected: nfvi_admin_state=%s "
"host_admin_state=%s, nfvi_oper_state=%s "
"host_oper_state=%s, nfvi_avail_state=%s "
"host_avail_status=%s, locking=%s unlocking=%s "
"fsm current_state=%s for %s." %
(nfvi_admin_state, self._nfvi_host.admin_state,
nfvi_oper_state, self._nfvi_host.oper_state,
nfvi_avail_status, self._nfvi_host.avail_status,
self.is_locking(), self.is_unlocking(),
self._fsm.current_state.name, self._nfvi_host.name))
notify_offline = False
if nfvi.objects.v1.HOST_AVAIL_STATUS.OFFLINE == nfvi_avail_status:
if nfvi.objects.v1.HOST_AVAIL_STATUS.OFFLINE \
!= self._nfvi_host.avail_status:
notify_offline = True
self._nfvi_host.admin_state = nfvi_admin_state
self._nfvi_host.oper_state = nfvi_oper_state
self._nfvi_host.avail_status = nfvi_avail_status
self._persist()
self._nfvi_host_handle_state_change()
if notify_offline:
from nfv_vim import directors
host_director = directors.get_host_director()
host_director.host_offline(self)
elif host_fsm.HOST_STATE.INITIAL == self._fsm.current_state.name:
self._fsm.handle_event(host_fsm.HOST_EVENT.ADD)
return
elif host_fsm.HOST_STATE.CONFIGURE == self._fsm.current_state.name:
self._fsm.handle_event(host_fsm.HOST_EVENT.ADD)
return
elif host_fsm.HOST_STATE.ENABLED == self._fsm.current_state.name \
and nfvi.objects.v1.HOST_OPER_STATE.DISABLED == nfvi_oper_state:
self._fsm.handle_event(host_fsm.HOST_EVENT.DISABLE)
return
elif host_fsm.HOST_STATE.DISABLED == self._fsm.current_state.name \
and nfvi.objects.v1.HOST_OPER_STATE.ENABLED == nfvi_oper_state:
self._fsm.handle_event(host_fsm.HOST_EVENT.ENABLE)
return
else:
now_ms = timers.get_monotonic_timestamp_in_ms()
secs_expired = (now_ms - self._last_state_timestamp) / 1000
if 30 <= secs_expired:
if 0 != self._last_state_timestamp:
self._elapsed_time_in_state += int(secs_expired)
self._last_state_timestamp = now_ms
self._persist()
self._fsm.handle_event(host_fsm.HOST_EVENT.AUDIT)