151 lines
5.1 KiB
Python
151 lines
5.1 KiB
Python
from collections import defaultdict
|
|
from enum import Enum
|
|
from pathlib import PurePath
|
|
from types import GeneratorType
|
|
from typing import Any, Callable, Dict, List, Optional, Set, Tuple, Union
|
|
|
|
from pydantic import BaseModel
|
|
from pydantic.json import ENCODERS_BY_TYPE
|
|
|
|
SetIntStr = Set[Union[int, str]]
|
|
DictIntStrAny = Dict[Union[int, str], Any]
|
|
|
|
|
|
def generate_encoders_by_class_tuples(
|
|
type_encoder_map: Dict[Any, Callable[[Any], Any]]
|
|
) -> Dict[Callable[[Any], Any], Tuple[Any, ...]]:
|
|
encoders_by_class_tuples: Dict[Callable[[Any], Any], Tuple[Any, ...]] = defaultdict(
|
|
tuple
|
|
)
|
|
for type_, encoder in type_encoder_map.items():
|
|
encoders_by_class_tuples[encoder] += (type_,)
|
|
return encoders_by_class_tuples
|
|
|
|
|
|
encoders_by_class_tuples = generate_encoders_by_class_tuples(ENCODERS_BY_TYPE)
|
|
|
|
|
|
def jsonable_encoder(
|
|
obj: Any,
|
|
include: Optional[Union[SetIntStr, DictIntStrAny]] = None,
|
|
exclude: Optional[Union[SetIntStr, DictIntStrAny]] = None,
|
|
by_alias: bool = True,
|
|
exclude_unset: bool = False,
|
|
exclude_defaults: bool = False,
|
|
exclude_none: bool = False,
|
|
custom_encoder: Dict[Any, Callable[[Any], Any]] = {},
|
|
sqlalchemy_safe: bool = True,
|
|
) -> Any:
|
|
if include is not None and not isinstance(include, set):
|
|
include = set(include)
|
|
if exclude is not None and not isinstance(exclude, set):
|
|
exclude = set(exclude)
|
|
if isinstance(obj, BaseModel):
|
|
encoder = getattr(obj.__config__, "json_encoders", {})
|
|
if custom_encoder:
|
|
encoder.update(custom_encoder)
|
|
obj_dict = obj.dict(
|
|
include=include, # type: ignore # in Pydantic
|
|
exclude=exclude, # type: ignore # in Pydantic
|
|
by_alias=by_alias,
|
|
exclude_unset=exclude_unset,
|
|
exclude_none=exclude_none,
|
|
exclude_defaults=exclude_defaults,
|
|
)
|
|
if "__root__" in obj_dict:
|
|
obj_dict = obj_dict["__root__"]
|
|
return jsonable_encoder(
|
|
obj_dict,
|
|
exclude_none=exclude_none,
|
|
exclude_defaults=exclude_defaults,
|
|
custom_encoder=encoder,
|
|
sqlalchemy_safe=sqlalchemy_safe,
|
|
)
|
|
if isinstance(obj, Enum):
|
|
return obj.value
|
|
if isinstance(obj, PurePath):
|
|
return str(obj)
|
|
if isinstance(obj, (str, int, float, type(None))):
|
|
return obj
|
|
if isinstance(obj, dict):
|
|
encoded_dict = {}
|
|
for key, value in obj.items():
|
|
if (
|
|
(
|
|
not sqlalchemy_safe
|
|
or (not isinstance(key, str))
|
|
or (not key.startswith("_sa"))
|
|
)
|
|
and (value is not None or not exclude_none)
|
|
and ((include and key in include) or not exclude or key not in exclude)
|
|
):
|
|
encoded_key = jsonable_encoder(
|
|
key,
|
|
by_alias=by_alias,
|
|
exclude_unset=exclude_unset,
|
|
exclude_none=exclude_none,
|
|
custom_encoder=custom_encoder,
|
|
sqlalchemy_safe=sqlalchemy_safe,
|
|
)
|
|
encoded_value = jsonable_encoder(
|
|
value,
|
|
by_alias=by_alias,
|
|
exclude_unset=exclude_unset,
|
|
exclude_none=exclude_none,
|
|
custom_encoder=custom_encoder,
|
|
sqlalchemy_safe=sqlalchemy_safe,
|
|
)
|
|
encoded_dict[encoded_key] = encoded_value
|
|
return encoded_dict
|
|
if isinstance(obj, (list, set, frozenset, GeneratorType, tuple)):
|
|
encoded_list = []
|
|
for item in obj:
|
|
encoded_list.append(
|
|
jsonable_encoder(
|
|
item,
|
|
include=include,
|
|
exclude=exclude,
|
|
by_alias=by_alias,
|
|
exclude_unset=exclude_unset,
|
|
exclude_defaults=exclude_defaults,
|
|
exclude_none=exclude_none,
|
|
custom_encoder=custom_encoder,
|
|
sqlalchemy_safe=sqlalchemy_safe,
|
|
)
|
|
)
|
|
return encoded_list
|
|
|
|
if custom_encoder:
|
|
if type(obj) in custom_encoder:
|
|
return custom_encoder[type(obj)](obj)
|
|
else:
|
|
for encoder_type, encoder in custom_encoder.items():
|
|
if isinstance(obj, encoder_type):
|
|
return encoder(obj)
|
|
|
|
if type(obj) in ENCODERS_BY_TYPE:
|
|
return ENCODERS_BY_TYPE[type(obj)](obj)
|
|
for encoder, classes_tuple in encoders_by_class_tuples.items():
|
|
if isinstance(obj, classes_tuple):
|
|
return encoder(obj)
|
|
|
|
errors: List[Exception] = []
|
|
try:
|
|
data = dict(obj)
|
|
except Exception as e:
|
|
errors.append(e)
|
|
try:
|
|
data = vars(obj)
|
|
except Exception as e:
|
|
errors.append(e)
|
|
raise ValueError(errors)
|
|
return jsonable_encoder(
|
|
data,
|
|
by_alias=by_alias,
|
|
exclude_unset=exclude_unset,
|
|
exclude_defaults=exclude_defaults,
|
|
exclude_none=exclude_none,
|
|
custom_encoder=custom_encoder,
|
|
sqlalchemy_safe=sqlalchemy_safe,
|
|
)
|