def from_json(cls,
data,
project_meta: ProjectMeta,
key_id_map: KeyIdMap = None):
'''
The function from_json convert PointcloudObject from json format to PointcloudObject class object. Raise error if object class name is not found in the given project meta
:param data: input PointcloudObject in json format
:param project_meta: ProjectMeta class object
:param key_id_map: KeyIdMap class object
:return: PointcloudObject class object
'''
obj_class_name = data[LabelJsonFields.OBJ_CLASS_NAME]
obj_class = project_meta.get_obj_class(obj_class_name)
if obj_class is None:
raise RuntimeError(
f'Failed to deserialize a object from JSON: class name {obj_class_name!r} '
f'was not found in the given project meta.')
object_id = data.get(ID, None)
existing_key = None
if object_id is not None and key_id_map is not None:
existing_key = key_id_map.get_object_key(object_id)
json_key = uuid.UUID(data[KEY]) if KEY in data else None
if (existing_key
is not None) and (json_key
is not None) and (existing_key != json_key):
raise RuntimeError(
"Object id = {!r}: existing_key {!r} != json_key {!r}".format(
object_id, existing_key, json_key))
if existing_key is not None:
key = existing_key
elif json_key is not None:
key = json_key
else:
key = uuid.uuid4()
if key_id_map is not None and existing_key is None:
key_id_map.add_object(key, object_id)
class_id = data.get(CLASS_ID, None)
labeler_login = data.get(LABELER_LOGIN, None)
updated_at = data.get(UPDATED_AT, None)
created_at = data.get(CREATED_AT, None)
return cls(obj_class=obj_class,
key=key,
tags=VideoTagCollection.from_json(
data[LabelJsonFields.TAGS], project_meta.tag_metas),
class_id=class_id,
labeler_login=labeler_login,
updated_at=updated_at,
created_at=created_at)
def from_json(cls,
data,
project_meta: ProjectMeta,
key_id_map: KeyIdMap = None):
'''
The function from_json convert VideoObject from json format to VideoObject class object. Raise error if object class name is not found in the given project meta
:param data: input VideoObject in json format
:param project_meta: ProjectMeta class object
:param key_id_map: KeyIdMap class object
:return: VideoObject class object
'''
obj_class_name = data[LabelJsonFields.OBJ_CLASS_NAME]
obj_class = project_meta.get_obj_class(obj_class_name)
if obj_class is None:
raise RuntimeError(
f'Failed to deserialize a object from JSON: class name {obj_class_name!r} '
f'was not found in the given project meta.')
key = uuid.UUID(data[KEY]) if KEY in data else uuid.uuid4()
if key_id_map is not None:
key_id_map.add_object(key, data.get(ID, None))
class_id = data.get(CLASS_ID, None)
labeler_login = data.get(LABELER_LOGIN, None)
updated_at = data.get(UPDATED_AT, None)
created_at = data.get(CREATED_AT, None)
return cls(obj_class=obj_class,
key=key,
tags=VideoTagCollection.from_json(
data[LabelJsonFields.TAGS], project_meta.tag_metas),
class_id=class_id,
labeler_login=labeler_login,
updated_at=updated_at,
created_at=created_at)