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