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import inspect
import json
import os
import pkgutil
from abc import ABC, abstractmethod
from copy import deepcopy
from typing import Any, Dict, List, Union, final
from .dataclass import Dataclass, Field, asdict, fields
from .text_utils import camel_to_snake_case, is_camel_case
from .type_utils import issubtype
class Artifactories(object):
def __new__(cls):
if not hasattr(cls, "instance"):
cls.instance = super(Artifactories, cls).__new__(cls)
cls.instance.artifactories = []
return cls.instance
def __iter__(self):
return iter(self.artifactories)
def __next__(self):
return next(self.artifactories)
def register_atrifactory(self, artifactory):
assert isinstance(artifactory, Artifactory), "Artifactory must be an instance of Artifactory"
assert hasattr(artifactory, "__contains__"), "Artifactory must have __contains__ method"
assert hasattr(artifactory, "__getitem__"), "Artifactory must have __getitem__ method"
self.artifactories = [artifactory] + self.artifactories
# class BaseArtifact(ABC):
# _class_register = {}
# @classmethod
# def is_artifact_dict(cls, d):
# return isinstance(d, dict) and "type" in d and d["type"] in cls._class_register
# @classmethod
# def register_class(cls, artifact_class):
# assert issubclass(artifact_class, BaseArtifact), "Artifact class must be a subclass of BaseArtifact"
# assert is_camel_case(
# artifact_class.__name__
# ), f"Artifact class name must be legal camel case, got {artifact_class.__name__}"
# snake_case_key = camel_to_snake_case(artifact_class.__name__)
# if snake_case_key in cls._class_register:
# assert (
# cls._class_register[snake_case_key] == artifact_class
# ), f"Artifact class name must be unique, {snake_case_key} already exists for {cls._class_register[snake_case_key]}"
# cls._class_register[snake_case_key] = artifact_class
# return snake_case_key
# @classmethod
# def is_artifact_file(cls, path):
# if not os.path.exists(path) or not os.path.isfile(path):
# return False
# with open(path, "r") as f:
# d = json.load(f)
# return cls.is_artifact_dict(d)
# @final
# def __init__(self, *args, **kwargs):
# super().__init__(*args, **kwargs)
# @final
# def __init_subclass__(cls, **kwargs):
# super().__init_subclass__(**kwargs)
# cls = dataclass(cls)
# def prepare(self):
# pass
# def verify(self):
# pass
# @final
# def __post_init__(self):
# self.type = self.register_class(self.__class__)
# self._args_dict = asdict(self)
# for field in fields(self):
# if getattr(self, field.name) == "cards.wnli":
# print("cards.wnli")
# if issubtype(field.type, Union[BaseArtifact, List[BaseArtifact], Dict[str, BaseArtifact]]):
# value = getattr(self, field.name)
# value = map_values_in_place(value, maybe_recover_artifact)
# setattr(self, field.name, value)
# self.prepare()
# self.verify()
# def to_dict(self):
# return self._args_dict
# def save(self, path):
# with open(path, "w") as f:
# json.dump(self.to_dict(), f, indent=4)
# # def __getstate__(self):
# # print('getstate', self.__dict__)
# # return self.to_dict()
# @classmethod
# def _recursive_load(cls, d):
# if isinstance(d, dict):
# new_d = {}
# for key, value in d.items():
# new_d[key] = cls._recursive_load(value)
# d = new_d
# elif isinstance(d, list):
# d = [cls._recursive_load(value) for value in d]
# else:
# pass
# if cls.is_artifact_dict(d):
# instance = cls._class_register[d.pop("type")](**d)
# return instance
# else:
# return d
# @classmethod
# def from_dict(cls, d):
# assert cls.is_artifact_dict(d), "Input must be a dict with type field"
# return cls._recursive_load(d)
# @classmethod
# def load(cls, path):
# with open(path, "r") as f:
# d = json.load(f)
# assert "type" in d, "Saved artifact must have a type field"
# return cls._recursive_load(d)
# # assert d['type'] in cls._class_register, f'Artifact type "{d["type"]}" is not registered'
# # cls = cls._class_register[d.pop('type')]
# # return cls(**d)
def map_values_in_place(object, mapper):
if isinstance(object, dict):
for key, value in object.items():
object[key] = mapper(value)
return object
if isinstance(object, list):
for i in range(len(object)):
object[i] = mapper(object[i])
return object
return mapper(object)
class Artifact(Dataclass):
type: str = Field(default=None, final=True, init=False)
_class_register = {}
@classmethod
def is_artifact_dict(cls, d):
return isinstance(d, dict) and "type" in d and d["type"] in cls._class_register
@classmethod
def register_class(cls, artifact_class):
assert issubclass(
artifact_class, Artifact
), f"Artifact class must be a subclass of Artifact, got {artifact_class}"
assert is_camel_case(
artifact_class.__name__
), f"Artifact class name must be legal camel case, got {artifact_class.__name__}"
snake_case_key = camel_to_snake_case(artifact_class.__name__)
if snake_case_key in cls._class_register:
assert (
cls._class_register[snake_case_key] == artifact_class
), f"Artifact class name must be unique, {snake_case_key} already exists for {cls._class_register[snake_case_key]}"
cls._class_register[snake_case_key] = artifact_class
return snake_case_key
@classmethod
def is_artifact_file(cls, path):
if not os.path.exists(path) or not os.path.isfile(path):
return False
with open(path, "r") as f:
d = json.load(f)
return cls.is_artifact_dict(d)
@classmethod
def _recursive_load(cls, d):
if isinstance(d, dict):
new_d = {}
for key, value in d.items():
new_d[key] = cls._recursive_load(value)
d = new_d
elif isinstance(d, list):
d = [cls._recursive_load(value) for value in d]
else:
pass
if cls.is_artifact_dict(d):
instance = cls._class_register[d.pop("type")](**d)
return instance
else:
return d
@classmethod
def from_dict(cls, d):
assert cls.is_artifact_dict(d), "Input must be a dict with type field"
return cls._recursive_load(d)
@classmethod
def load(cls, path):
try:
with open(path, "r") as f:
d = json.load(f)
assert "type" in d, "Saved artifact must have a type field"
return cls._recursive_load(d)
except Exception as e:
raise IOError(f"Failed loading {cls.type} from {path}")
def prepare(self):
pass
def verify(self):
pass
@final
def __post_init__(self):
self.type = self.register_class(self.__class__)
self._init_dict = asdict(self)
for field in fields(self):
if issubtype(field.type, Union[Artifact, List[Artifact], Dict[str, Artifact]]):
value = getattr(self, field.name)
value = map_values_in_place(value, maybe_recover_artifact)
setattr(self, field.name, value)
self.prepare()
self.verify()
def get_init_dict(self):
return self._init_dict
def save(self, path):
with open(path, "w") as f:
init_dict = self.get_init_dict()
json.dump(init_dict, f, indent=4)
class ArtifactList(list, Artifact):
def prepare(self):
for artifact in self:
artifact.prepare()
class Artifactory(Artifact):
@abstractmethod
def __contains__(self, name: str) -> bool:
pass
@abstractmethod
def __getitem__(self, name) -> Artifact:
pass
class UnitxtArtifactNotFoundError(Exception):
def __init__(self, name, artifactories):
self.name = name
self.artifactories = artifactories
def __str__(self):
return f"Artifact {self.name} does not exist, in artifactories:{self.artifactories}"
def fetch_artifact(name):
if Artifact.is_artifact_file(name):
return Artifact.load(name), None
else:
for artifactory in Artifactories():
if name in artifactory:
return artifactory[name], artifactory
raise UnitxtArtifactNotFoundError(name, Artifactories().artifactories)
def verbosed_fetch_artifact(identifer):
artifact, artifactory = fetch_artifact(identifer)
print(f"Artifact {identifer} is fetched from {artifactory}")
return artifact
def maybe_recover_artifact(artifact):
if isinstance(artifact, str):
return verbosed_fetch_artifact(artifact)
else:
return artifact
def register_all_artifacts(path):
for loader, module_name, is_pkg in pkgutil.walk_packages(path):
print(__name__)
if module_name == __name__:
continue
print(f"Loading {module_name}")
# Import the module
module = loader.find_module(module_name).load_module(module_name)
# Iterate over every object in the module
for name, obj in inspect.getmembers(module):
# Make sure the object is a class
if inspect.isclass(obj):
# Make sure the class is a subclass of Artifact (but not Artifact itself)
if issubclass(obj, Artifact) and obj is not Artifact:
print(obj)