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# Modified from: https://github.com/facebookresearch/fvcore/blob/master/fvcore/common/registry.py # noqa: E501 | |
class Registry(): | |
""" | |
The registry that provides name -> object mapping, to support third-party | |
users' custom modules. | |
To create a registry (e.g. a backbone registry): | |
.. code-block:: python | |
BACKBONE_REGISTRY = Registry('BACKBONE') | |
To register an object: | |
.. code-block:: python | |
@BACKBONE_REGISTRY.register() | |
class MyBackbone(): | |
... | |
Or: | |
.. code-block:: python | |
BACKBONE_REGISTRY.register(MyBackbone) | |
""" | |
def __init__(self, name): | |
""" | |
Args: | |
name (str): the name of this registry | |
""" | |
self._name = name | |
self._obj_map = {} | |
def _do_register(self, name, obj, suffix=None): | |
if isinstance(suffix, str): | |
name = name + '_' + suffix | |
assert (name not in self._obj_map), (f"An object named '{name}' was already registered " | |
f"in '{self._name}' registry!") | |
self._obj_map[name] = obj | |
def register(self, obj=None, suffix=None): | |
""" | |
Register the given object under the the name `obj.__name__`. | |
Can be used as either a decorator or not. | |
See docstring of this class for usage. | |
""" | |
if obj is None: | |
# used as a decorator | |
def deco(func_or_class): | |
name = func_or_class.__name__ | |
self._do_register(name, func_or_class, suffix) | |
return func_or_class | |
return deco | |
# used as a function call | |
name = obj.__name__ | |
self._do_register(name, obj, suffix) | |
def get(self, name, suffix='basicsr'): | |
ret = self._obj_map.get(name) | |
if ret is None: | |
ret = self._obj_map.get(name + '_' + suffix) | |
print(f'Name {name} is not found, use name: {name}_{suffix}!') | |
if ret is None: | |
raise KeyError(f"No object named '{name}' found in '{self._name}' registry!") | |
return ret | |
def __contains__(self, name): | |
return name in self._obj_map | |
def __iter__(self): | |
return iter(self._obj_map.items()) | |
def keys(self): | |
return self._obj_map.keys() | |
DATASET_REGISTRY = Registry('dataset') | |
ARCH_REGISTRY = Registry('arch') | |
MODEL_REGISTRY = Registry('model') | |
LOSS_REGISTRY = Registry('loss') | |
METRIC_REGISTRY = Registry('metric') | |