def validate_groups(group_ids, mapping_id, identity_api):
if not group_ids:
raise exception.MissingGroups(mapping_id=mapping_id)
for group_id in group_ids:
try:
identity_api.get_group(group_id)
except exception.GroupNotFound:
raise exception.MappedGroupNotFound(group_id=group_id,
mapping_id=mapping_id)
def validate_groups_cardinality(group_ids, mapping_id):
"""Check if groups list is non-empty.
:param group_ids: list of group ids
:type group_ids: list of str
:raises keystone.exception.MissingGroups: if ``group_ids`` cardinality is 0
"""
if not group_ids:
raise exception.MissingGroups(mapping_id=mapping_id)
