def __init__(self, name, create=True, timeout=None, version=None):
if not Cache.IsValidName(name):
raise exceptions.CacheNameInvalid(
'[{}] is not a valid persistent cache name.'.format(name))
self.name = name
del create # Unused in __init__. Subclass constructors may use this.
self.timeout = timeout
self.version = version
def EncodeName(cls, name):
r"""Returns name encoded for filesystem portability.
A cache name may be a file path. The part after the rightmost of
('/', '\\') is encoded with Table.EncodeName().
Args:
name: The cache name string to encode.
Raises:
CacheNameInvalid: For invalid cache names.
Returns:
Name encoded for filesystem portability.
"""
basename_index = max(name.rfind('/'), name.rfind('\\')) + 1
if not name[basename_index:]:
raise exceptions.CacheNameInvalid(
'Cache name [{}] is invalid.'.format(name))
return name[:basename_index] + Table.EncodeName(name[basename_index:])