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swh/storage/api/serializers.py
| # Copyright (C) 2020 The Software Heritage developers | # Copyright (C) 2020 The Software Heritage developers | ||||
| # See the AUTHORS file at the top-level directory of this distribution | # See the AUTHORS file at the top-level directory of this distribution | ||||
| # License: GNU General Public License version 3, or any later version | # License: GNU General Public License version 3, or any later version | ||||
| # See top-level LICENSE file for more information | # See top-level LICENSE file for more information | ||||
| """Decoder and encoders for swh-model objects.""" | """Decoder and encoders for swh-model objects.""" | ||||
| from typing import Callable, Dict, List, Tuple | from typing import Callable, Dict, List, Tuple | ||||
| from swh.model.identifiers import SWHID, parse_swhid | from swh.model.identifiers import SWHID, parse_swhid | ||||
| import swh.model.model as model | import swh.model.model as model | ||||
| from swh.storage import interface | |||||
| def _encode_model_object(obj): | def _encode_model_object(obj): | ||||
| d = obj.to_dict() | d = obj.to_dict() | ||||
| d["__type__"] = type(obj).__name__ | d["__type__"] = type(obj).__name__ | ||||
| return d | return d | ||||
| def _encode_model_enum(obj): | def _encode_enum(obj): | ||||
| return { | return { | ||||
| "value": obj.value, | "value": obj.value, | ||||
| "__type__": type(obj).__name__, | "__type__": type(obj).__name__, | ||||
| } | } | ||||
| def _decode_model_enum(d): | |||||
| return getattr(model, d.pop("__type__"))(d["value"]) | |||||
| def _decode_storage_enum(d): | |||||
| return getattr(interface, d.pop("__type__"))(d["value"]) | |||||
| ENCODERS: List[Tuple[type, str, Callable]] = [ | ENCODERS: List[Tuple[type, str, Callable]] = [ | ||||
| (model.BaseModel, "model", _encode_model_object), | (model.BaseModel, "model", _encode_model_object), | ||||
| (SWHID, "swhid", str), | (SWHID, "swhid", str), | ||||
| (model.MetadataTargetType, "model_enum", _encode_model_enum), | (model.MetadataTargetType, "model_enum", _encode_enum), | ||||
| (model.MetadataAuthorityType, "model_enum", _encode_model_enum), | (model.MetadataAuthorityType, "model_enum", _encode_enum), | ||||
| (interface.ListOrder, "storage_enum", _encode_enum), | |||||
| ] | ] | ||||
| DECODERS: Dict[str, Callable] = { | DECODERS: Dict[str, Callable] = { | ||||
| "swhid": parse_swhid, | "swhid": parse_swhid, | ||||
| "model": lambda d: getattr(model, d.pop("__type__")).from_dict(d), | "model": lambda d: getattr(model, d.pop("__type__")).from_dict(d), | ||||
| "model_enum": lambda d: getattr(model, d.pop("__type__"))(d["value"]), | "model_enum": _decode_model_enum, | ||||
| "model_enum": _decode_model_enum, | |||||
| "storage_enum": _decode_storage_enum, | |||||
| } | } | ||||