def _execute_task(task, arguments, progress_callback=None):
with notifier.register_deregister(task.notifier,
_UPDATE_PROGRESS,
callback=progress_callback):
try:
task.pre_execute()
result = task.execute(**arguments)
except Exception:
# NOTE(imelnikov): wrap current exception with Failure
# object and return it.
result = failure.Failure()
finally:
task.post_execute()
return (EXECUTED, result)
def _execute_task(task, arguments, progress_callback=None):
with notifier.register_deregister(task.notifier,
_UPDATE_PROGRESS,
callback=progress_callback):
try:
task.pre_execute()
result = task.execute(**arguments)
except Exception:
# NOTE(imelnikov): wrap current exception with Failure
# object and return it.
result = failure.Failure()
finally:
task.post_execute()
return (EXECUTED, result)
def _revert_task(task, arguments, result, failures, progress_callback=None):
arguments = arguments.copy()
arguments[task_atom.REVERT_RESULT] = result
arguments[task_atom.REVERT_FLOW_FAILURES] = failures
with notifier.register_deregister(task.notifier,
_UPDATE_PROGRESS,
callback=progress_callback):
try:
task.pre_revert()
result = task.revert(**arguments)
except Exception:
# NOTE(imelnikov): wrap current exception with Failure
# object and return it.
result = failure.Failure()
finally:
task.post_revert()
return (REVERTED, result)
def _revert_task(task, arguments, result, failures, progress_callback=None):
arguments = arguments.copy()
arguments[task_atom.REVERT_RESULT] = result
arguments[task_atom.REVERT_FLOW_FAILURES] = failures
with notifier.register_deregister(task.notifier,
_UPDATE_PROGRESS,
callback=progress_callback):
try:
task.pre_revert()
result = task.revert(**arguments)
except Exception:
# NOTE(imelnikov): wrap current exception with Failure
# object and return it.
result = failure.Failure()
finally:
task.post_revert()
return (REVERTED, result)
