nfv/nfv/nfv-vim/nfv_vim/host_fsm/_host_state_configure.py

83 lines
2.3 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 AddHostTask
DLOG = debug.debug_get_logger('nfv_vim.state_machine.host')
class ConfigureState(state_machine.State):
"""
Host - Configure State
"""
def __init__(self, name):
super(ConfigureState, self).__init__(name)
def enter(self, host):
"""
Entering configure state
"""
DLOG.info("Entering state (%s) for %s." % (self.name, host.name))
host.task = AddHostTask(host)
host.task.start()
def exit(self, host):
"""
Exiting configure 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 configure state
"""
pass
def handle_event(self, host, event, event_data=None):
"""
Handle event while in the configure state
"""
if HOST_EVENT.ADD == event:
if not host.task.inprogress():
host.task = AddHostTask(host)
host.task.start()
elif host.task.is_failed() or host.task.timed_out():
host.task.start()
elif HOST_EVENT.DELETE == event:
return HOST_STATE.DELETING
elif HOST_EVENT.TASK_COMPLETED == event:
if host.nfvi_host_is_enabled():
return HOST_STATE.ENABLING
else:
return HOST_STATE.DISABLING
elif HOST_EVENT.TASK_FAILED == event:
DLOG.info("Configure failed for %s." % host.name)
elif HOST_EVENT.TASK_TIMEOUT == event:
DLOG.info("Configure timed out for %s." % host.name)
elif HOST_EVENT.AUDIT == event:
if not host.task.inprogress():
host.task = AddHostTask(host)
host.task.start()
elif host.task.is_failed() or host.task.timed_out():
host.task.start()
else:
DLOG.verbose("Ignoring %s event for %s." % (event, host.name))
return self.name