def _gc_rule_from_pb(gc_rule_pb):
"""Convert a protobuf GC rule to a native object.
:type gc_rule_pb: :class:`.table_v2_pb2.GcRule`
:param gc_rule_pb: The GC rule to convert.
:rtype: :class:`GarbageCollectionRule` or :data:`NoneType <types.NoneType>`
:returns: An instance of one of the native rules defined
in :module:`column_family` or :data:`None` if no values were
set on the protobuf passed in.
:raises: :class:`ValueError <exceptions.ValueError>` if the rule name
is unexpected.
"""
rule_name = gc_rule_pb.WhichOneof("rule")
if rule_name is None:
return None
if rule_name == "max_num_versions":
return MaxVersionsGCRule(gc_rule_pb.max_num_versions)
elif rule_name == "max_age":
max_age = _helpers._duration_pb_to_timedelta(gc_rule_pb.max_age)
return MaxAgeGCRule(max_age)
elif rule_name == "union":
return GCRuleUnion(
[_gc_rule_from_pb(rule) for rule in gc_rule_pb.union.rules])
elif rule_name == "intersection":
rules = [
_gc_rule_from_pb(rule) for rule in gc_rule_pb.intersection.rules
]
return GCRuleIntersection(rules)
else:
raise ValueError("Unexpected rule name", rule_name)
def _gc_rule_from_pb(gc_rule_pb):
"""Convert a protobuf GC rule to a native object.
:type gc_rule_pb: :class:`.table_v2_pb2.GcRule`
:param gc_rule_pb: The GC rule to convert.
:rtype: :class:`GarbageCollectionRule` or :data:`NoneType <types.NoneType>`
:returns: An instance of one of the native rules defined
in :module:`column_family` or :data:`None` if no values were
set on the protobuf passed in.
:raises: :class:`ValueError <exceptions.ValueError>` if the rule name
is unexpected.
"""
rule_name = gc_rule_pb.WhichOneof('rule')
if rule_name is None:
return None
if rule_name == 'max_num_versions':
return MaxVersionsGCRule(gc_rule_pb.max_num_versions)
elif rule_name == 'max_age':
max_age = _helpers._duration_pb_to_timedelta(gc_rule_pb.max_age)
return MaxAgeGCRule(max_age)
elif rule_name == 'union':
return GCRuleUnion([_gc_rule_from_pb(rule)
for rule in gc_rule_pb.union.rules])
elif rule_name == 'intersection':
rules = [_gc_rule_from_pb(rule)
for rule in gc_rule_pb.intersection.rules]
return GCRuleIntersection(rules)
else:
raise ValueError('Unexpected rule name', rule_name)
def _call_fut(self, *args, **kwargs):
from google.cloud._helpers import _duration_pb_to_timedelta
return _duration_pb_to_timedelta(*args, **kwargs)
def _call_fut(self, *args, **kwargs):
from google.cloud._helpers import _duration_pb_to_timedelta
return _duration_pb_to_timedelta(*args, **kwargs)