def classify(
self, orbital_elem_set: ResonanceOrbitalElementSetFacade, serialized_phases: List[Dict[str, float]]
) -> bool:
"""
Determines class of libration. Libration can be loaded from database if object has upped
flag _get_from_db. If libration's class was not determined, libration will be removed and
method returns False else libration will be saved and method return True.
:param serialized_phases:
:param orbital_elem_set:
:return: flag of successful determining class of libration.
"""
if not self._get_from_db and self._libration is None:
builder = TransientBuilder(self._resonance, orbital_elem_set, serialized_phases)
self._libration = self._libration_director.build(builder)
elif not self._libration:
return True
try:
if _save_as_transient(self._libration, self._resonance, self._asteroid_num, self._resonance_str):
return True
elif not self._libration.is_apocentric:
logging.info("A%i, pure resonance %s", self._asteroid_num, self._resonance_str)
return True
raise _NoTransientException()
except _NoTransientException:
if not self._get_from_db and not self._libration.is_apocentric:
builder = ApocentricBuilder(self._resonance, orbital_elem_set, serialized_phases)
self._libration = self._libration_director.build(builder)
if self._libration.is_pure:
logging.info("A%i, pure apocentric resonance %s", self._asteroid_num, self._resonance_str)
return True
else:
session.expunge(self._libration)
return False
def _save_as_transient(libration: LibrationMixin, resonance: ResonanceMixin, asteroid_num: int, resonance_str: str):
if not libration.is_pure:
if libration.is_transient:
if libration.percentage:
logging.info("A%i, %s, resonance = %s", asteroid_num, str(libration), str(resonance))
return True
else:
logging.debug(
"A%i, NO RESONANCE, resonance = %s, max = %f", asteroid_num, resonance_str, libration.max_diff
)
session.expunge(libration)
raise _NoTransientException()
raise _NoTransientException()
return False
