def recognizeBackends(b: EntryPoint) -> BackendDescriptor:
if hasattr(b.__class__,
"__slots__") and "metadata" in b.__class__.__slots__:
metadata = b.metadata
else:
encoded = b.name.split("@", 1)
b.name = encoded[0]
if len(encoded) > 1:
try:
metadata = utils.json.loads(encoded[1])
except BaseException:
warnings.warn(
"Entry point " + repr(b) +
" is invalid. The value after @ must be must be a valid JSON!."
)
return BackendDescriptor(b, b.name,
prio=-1) # broken, so not using
else:
metadata = None
if metadata is not None:
if isinstance(metadata, int):
return BackendDescriptor(b, b.name,
prio=metadata) # it is priority
elif isinstance(metadata, dict):
return BackendDescriptor(b, b.name, **metadata)
else:
warnings.warn(
"Entry point " + repr(b) +
" is invalid. The value after @ must be must be eithera dict, or a number!."
)
return BackendDescriptor(b, b.name,
prio=-1) # broken, so not using
else:
return BackendDescriptor(b, b.name)
