84 lines
2.7 KiB
Python
Executable File
84 lines
2.7 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.instance_fsm._instance_defs import INSTANCE_EVENT
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from nfv_vim.instance_fsm._instance_defs import INSTANCE_STATE
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from nfv_vim.instance_fsm._instance_tasks import ColdMigrateRevertTask
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DLOG = debug.debug_get_logger('nfv_vim.state_machine.instance')
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class ColdMigrateRevertState(state_machine.State):
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"""
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Instance - Cold Migrate Revert State
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"""
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def __init__(self, name):
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super(ColdMigrateRevertState, self).__init__(name)
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def enter(self, instance):
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"""
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Entering cold migrate revert state
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"""
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DLOG.info("Entering state (%s) for %s." % (self.name, instance.name))
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instance.task = ColdMigrateRevertTask(instance)
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instance.task.start()
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def exit(self, instance):
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"""
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Exiting cold migrate revert state
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"""
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DLOG.info("Exiting state (%s) for %s." % (self.name, instance.name))
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if isinstance(instance.task, ColdMigrateRevertTask):
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instance.task.abort()
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def transition(self, instance, event, event_data, to_state):
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"""
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Transition from the cold migrate revert state
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"""
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pass
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def handle_event(self, instance, event, event_data=None):
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"""
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Handle event while in the cold migrate revert state
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"""
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if event_data is not None:
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reason = event_data.get('reason', '')
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else:
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reason = ''
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handled = False
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if instance.task.inprogress():
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handled = instance.task.handle_event(event, event_data)
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if not handled:
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if INSTANCE_EVENT.TASK_STOP == event:
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return INSTANCE_STATE.INITIAL
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elif INSTANCE_EVENT.TASK_COMPLETED == event:
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DLOG.debug("Cold-Migrate-Revert complete for %s."
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% instance.name)
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return INSTANCE_STATE.INITIAL
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elif INSTANCE_EVENT.TASK_FAILED == event:
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DLOG.info("Cold-Migrate-Revert failed for %s."
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% instance.name)
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instance.fail_action(instance.action_fsm_action_type, reason)
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return INSTANCE_STATE.INITIAL
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elif INSTANCE_EVENT.TASK_TIMEOUT == event:
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DLOG.info("Cold-Migrate-Revert timed out for %s."
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% instance.name)
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instance.fail_action(instance.action_fsm_action_type, 'timeout')
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return INSTANCE_STATE.INITIAL
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else:
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DLOG.verbose("Ignoring %s event for %s." % (event, instance.name))
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return self.name
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