101 lines
3.2 KiB
Python
Executable File
101 lines
3.2 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 config
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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_common import timers
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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 DeleteHostTask
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DLOG = debug.debug_get_logger('nfv_vim.state_machine.host')
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class DeletingState(state_machine.State):
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"""
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Host - Deleting State
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"""
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def __init__(self, name):
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super(DeletingState, self).__init__(name)
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def enter(self, host):
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"""
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Entering deleting state
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"""
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DLOG.info("Entering state (%s) for %s." % (self.name, host.name))
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host.fsm_start_time = timers.get_monotonic_timestamp_in_ms()
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host.clear_reason()
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host.task = DeleteHostTask(host)
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host.task.start()
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def exit(self, host):
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"""
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Exiting deleting 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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def transition(self, host, event, event_data, to_state):
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"""
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Transition from the deleting state
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"""
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if HOST_STATE.DELETING_FAILED != str(to_state):
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host.clear_reason()
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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 deleting state
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"""
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if HOST_EVENT.DELETE == event:
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if not host.task.inprogress():
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host.task = DeleteHostTask(host)
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host.task.start()
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elif host.task.is_failed() or host.task.timed_out():
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host.task.start()
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elif HOST_EVENT.TASK_COMPLETED == event:
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return HOST_STATE.DELETED
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elif HOST_EVENT.TASK_FAILED == event:
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DLOG.info("Delete failed for %s." % host.name)
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return HOST_STATE.DELETING_FAILED
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elif HOST_EVENT.AUDIT == event:
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if config.section_exists('host-configuration'):
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section = config.CONF['host-configuration']
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max_wait = int(section.get('max_host_deleting_wait_in_secs',
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60))
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else:
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max_wait = 60
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if not host.fsm_start_time:
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host.fsm_start_time = timers.get_monotonic_timestamp_in_ms()
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now_ms = timers.get_monotonic_timestamp_in_ms()
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secs_expired = (now_ms - host.fsm_start_time) / 1000
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if max_wait > secs_expired:
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if not host.task.inprogress():
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host.task = DeleteHostTask(host)
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host.task.start()
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elif host.task.is_failed() or host.task.timed_out():
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host.task.start()
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else:
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DLOG.info("Timed out waiting for delete completion of %s."
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% host.name)
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return HOST_STATE.CONFIGURE
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elif HOST_EVENT.TASK_TIMEOUT == event:
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DLOG.info("Delete timed out for %s." % host.name)
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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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