80 lines
2.4 KiB
Python
Executable File
80 lines
2.4 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 AuditEnabledHostTask
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DLOG = debug.debug_get_logger('nfv_vim.state_machine.host')
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class EnabledState(state_machine.State):
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"""
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Host - Enabled State
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"""
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def __init__(self, name):
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super(EnabledState, self).__init__(name)
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def enter(self, host):
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"""
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Entering enabled state
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"""
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DLOG.info("Entering state (%s) for %s." % (self.name, host.name))
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def exit(self, host):
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"""
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Exiting enabled 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 enabled 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 enabled state
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"""
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from nfv_vim import objects
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if HOST_EVENT.DELETE == event:
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return HOST_STATE.DELETING
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elif HOST_EVENT.LOCK == event or HOST_EVENT.DISABLE == event \
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or HOST_EVENT.UNLOCK == event:
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return HOST_STATE.DISABLING
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elif HOST_EVENT.TASK_COMPLETED == event:
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if objects.HOST_SERVICE_STATE.ENABLED != \
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host.host_service_state_aggregate():
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if not host.host_services_locked:
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DLOG.info("Host services are not enabled on %s. "
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"Disabling host." % host.name)
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return HOST_STATE.DISABLING
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else:
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DLOG.info("Host services are not enabled on %s. "
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"Host services are locked." % host.name)
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elif HOST_EVENT.TASK_FAILED == event:
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DLOG.info("Audit failed for %s." % host.name)
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elif HOST_EVENT.TASK_TIMEOUT == event:
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DLOG.info("Audit timed out for %s." % 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 = AuditEnabledHostTask(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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