# Copyright 2020 Filippo Aleotti, Fabio Tosi, Li Zhang, Matteo Poggi, Stefano Mattoccia
#
# 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 dataloader import kitti, drivingstereo, generalization

DATALOADERS_FACTORY = {
    "DS": drivingstereo.Loader,
    "KITTI": kitti.Loader,
    "MIDDLEBURY": generalization.Loader,
    "ETH3D": generalization.Loader,
}


def get_dataloader(dataloader_name):
    """Return the desired dataloader.
    Args:
        dataloader: name of dataloader to load
    """
    if dataloader_name not in DATALOADERS_FACTORY.keys():
        raise ValueError("Dataloader not available!")
    return DATALOADERS_FACTORY[dataloader_name]
