94 lines
2.8 KiB
Python
Executable File
94 lines
2.8 KiB
Python
Executable File
#
|
|
# Copyright (c) 2015-2016 Wind River Systems, Inc.
|
|
#
|
|
# SPDX-License-Identifier: Apache-2.0
|
|
#
|
|
from nfv_common import debug
|
|
from nfv_common import state_machine
|
|
|
|
from nfv_vim.host_fsm._host_defs import HOST_EVENT
|
|
from nfv_vim.host_fsm._host_defs import HOST_STATE
|
|
from nfv_vim.host_fsm._host_tasks import EnableHostTask
|
|
|
|
DLOG = debug.debug_get_logger('nfv_vim.state_machine.host')
|
|
|
|
|
|
class EnablingState(state_machine.State):
|
|
"""
|
|
Host - Enabling State
|
|
"""
|
|
def __init__(self, name):
|
|
super(EnablingState, self).__init__(name)
|
|
|
|
def enter(self, host):
|
|
"""
|
|
Entering enabling state
|
|
"""
|
|
DLOG.info("Entering state (%s) for %s." % (self.name, host.name))
|
|
host.task = EnableHostTask(host)
|
|
host.task.start()
|
|
|
|
def exit(self, host):
|
|
"""
|
|
Exiting enabling state
|
|
"""
|
|
DLOG.info("Exiting state (%s) for %s." % (self.name, host.name))
|
|
host.task.abort()
|
|
|
|
def transition(self, host, event, event_data, to_state):
|
|
"""
|
|
Transition from the enabling state
|
|
"""
|
|
pass
|
|
|
|
def handle_event(self, host, event, event_data=None):
|
|
"""
|
|
Handle event while in the enabling state
|
|
"""
|
|
handled = False
|
|
|
|
if host.task.inprogress():
|
|
handled = host.task.handle_event(event, event_data)
|
|
|
|
if not handled:
|
|
if HOST_EVENT.DELETE == event:
|
|
return HOST_STATE.DELETING
|
|
|
|
elif HOST_EVENT.ENABLE == event:
|
|
if not host.task.inprogress():
|
|
host.task = EnableHostTask(host)
|
|
host.task.start()
|
|
|
|
elif host.task.is_failed() or host.task.timed_out():
|
|
host.task.start()
|
|
|
|
elif HOST_EVENT.LOCK == event or HOST_EVENT.DISABLE == event \
|
|
or HOST_EVENT.UNLOCK == event:
|
|
return HOST_STATE.DISABLING
|
|
|
|
elif HOST_EVENT.TASK_COMPLETED == event:
|
|
return HOST_STATE.ENABLED
|
|
|
|
elif HOST_EVENT.TASK_FAILED == event:
|
|
DLOG.info("Enable failed for %s." % host.name)
|
|
|
|
elif HOST_EVENT.TASK_TIMEOUT == event:
|
|
DLOG.info("Enable timed out for %s." % host.name)
|
|
|
|
elif HOST_EVENT.AUDIT == event:
|
|
DLOG.verbose("Audit event for %s." % host.name)
|
|
|
|
if not host.task.inprogress():
|
|
DLOG.verbose("Attempt re-enable for %s." % host.name)
|
|
host.task = EnableHostTask(host)
|
|
host.task.start()
|
|
|
|
elif host.task.is_failed() or host.task.timed_out():
|
|
DLOG.verbose("Attempt re-enable for %s." % host.name)
|
|
host.task.start()
|
|
|
|
else:
|
|
DLOG.verbose("Ignoring %s event for %s." % (event, host.name))
|
|
|
|
return self.name
|