84 lines
2.5 KiB
Python
Executable File
84 lines
2.5 KiB
Python
Executable File
#
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# Copyright (c) 2015-2016 Wind River Systems, Inc.
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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from nfv_common import debug
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from nfv_common import state_machine
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from nfv_vim.host_fsm._host_defs import HOST_EVENT
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from nfv_vim.host_fsm._host_defs import HOST_STATE
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from nfv_vim.host_fsm._host_tasks import AuditDisabledHostTask
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from nfv_vim.host_fsm._host_tasks import FailHostTask
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from nfv_vim.host_fsm._host_tasks import NotifyDisabledHostTask
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DLOG = debug.debug_get_logger('nfv_vim.state_machine.host')
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class DisabledState(state_machine.State):
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"""
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Host - Disabled State
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"""
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def __init__(self, name):
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super(DisabledState, self).__init__(name)
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def enter(self, host):
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"""
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Entering disabled state
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"""
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DLOG.info("Entering state (%s) for %s." % (self.name, host.name))
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if host.fail_notification_required:
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DLOG.info("Fail notification required for %s." % host.name)
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host.task = FailHostTask(host)
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host.task.start()
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host.fail_notification_required = False
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host.clear_reason()
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def exit(self, host):
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"""
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Exiting disabled state
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"""
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DLOG.info("Exiting state (%s) for %s." % (self.name, host.name))
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host.task.abort()
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host.fail_notification_required = False
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def transition(self, host, event, event_data, to_state):
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"""
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Transition from the disabled state
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"""
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pass
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def handle_event(self, host, event, event_data=None):
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"""
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Handle event while in the disabled state
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"""
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if HOST_EVENT.DELETE == event:
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return HOST_STATE.DELETING
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elif HOST_EVENT.ENABLE == event:
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return HOST_STATE.ENABLING
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elif HOST_EVENT.LOCK == event:
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if host.task.inprogress():
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host.task.abort()
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host.task = NotifyDisabledHostTask(host)
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host.task.start()
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elif HOST_EVENT.TASK_FAILED == event:
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DLOG.info("Fail-Host or Notify-Disabled-Host failed for %s."
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% host.name)
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elif HOST_EVENT.TASK_TIMEOUT == event:
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DLOG.info("Fail-Host or Notify-Disabled-Host timed out for %s."
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% host.name)
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elif HOST_EVENT.AUDIT == event:
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if not host.task.inprogress():
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host.task = AuditDisabledHostTask(host)
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host.task.start()
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else:
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DLOG.verbose("Ignoring %s event for %s." % (event, host.name))
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return self.name
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