PaddleX/paddlex/inference/predictors/__init__.py

# copyright (c) 2024 PaddlePaddle Authors. All Rights Reserve.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#    http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.


from pathlib import Path

from .base import BasePredictor
from .image_classification import ClasPredictor
from .text_detection import TextDetPredictor
from .text_recognition import TextRecPredictor
from .official_models import official_models


def create_predictor(model: str, device: str, *args, **kwargs) -> BasePredictor:
    model_dir = check_model(model)
    config = BasePredictor.load_config(model_dir)
    model_name = config["Global"]["model_name"]
    return BasePredictor.get(model_name)(
        model_dir=model_dir, config=config, device=device, *args, **kwargs
    )


def check_model(model):
    if Path(model).exists():
        return Path(model)
    elif model in official_models:
        return official_models[model]
    else:
        raise Exception(
            f"The model ({model}) is no exists! Please using directory of local model files or model name supported by PaddleX!"
        )