def from_json(cls, data):
'''
The function from_json convert ProjectMeta from json format to ProjectMeta class object. Generate exception error if all project tags not in a single collection
:param data: input ProjectMeta in json format
:return: ProjectMeta class object
'''
tag_metas_json = data.get(ProjectMetaJsonFields.TAGS, [])
img_tag_metas_json = data.get(ProjectMetaJsonFields.IMG_TAGS, [])
obj_tag_metas_json = data.get(ProjectMetaJsonFields.OBJ_TAGS, [])
project_type = data.get(ProjectMetaJsonFields.PROJECT_TYPE, None)
if len(tag_metas_json) > 0:
# New format - all project tags in a single collection.
if any(len(x) > 0 for x in [img_tag_metas_json, obj_tag_metas_json]):
raise ValueError(
'Project meta JSON contains both the {!r} section (current format merged tags for all of '
'the project) and {!r} or {!r} sections (legacy format with separate collections for images '
'and labeled objects). Either new format only or legacy format only are supported, but not a '
'mix.'.format(
ProjectMetaJsonFields.TAGS, ProjectMetaJsonFields.IMG_TAGS, ProjectMetaJsonFields.OBJ_TAGS))
tag_metas = TagMetaCollection.from_json(tag_metas_json)
else:
img_tag_metas = TagMetaCollection.from_json(img_tag_metas_json)
obj_tag_metas = TagMetaCollection.from_json(obj_tag_metas_json)
tag_metas = _merge_img_obj_tag_metas(img_tag_metas, obj_tag_metas)
return cls(obj_classes=ObjClassCollection.from_json(data[ProjectMetaJsonFields.OBJ_CLASSES]),
tag_metas=tag_metas, project_type=project_type)
def _model_out_tags(self):
temp_collection = TagMetaCollection.from_json(
self.train_config[self.classification_tags_key])
res_collection = TagMetaCollection([
TagMeta(x.name, TagValueType.ANY_NUMBER) for x in temp_collection
])
return res_collection
def from_json(cls, data):
return cls(
ObjClassCollection.from_json(
data[ProjectMetaJsonFields.OBJ_CLASSES]),
TagMetaCollection.from_json(data[ProjectMetaJsonFields.IMG_TAGS]),
TagMetaCollection.from_json(data[ProjectMetaJsonFields.OBJ_TAGS]))