/*
 * Copyright (c) 2020 Baidu, Inc.
 *
 * 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.
 */

package repository

var storageDriverMap = map[string]StorageDriver{}

type StorageDriver interface {
	Name() string
	Fetch(string) (string, error)
}

func RegisterStorageDriver(driver StorageDriver) {
	storageDriverMap[driver.Name()] = driver
}

func GetStorageDriver(name string) (driver StorageDriver, err error) {
	driver, ok := storageDriverMap[name]
	if !ok {
		return nil, ErrUnsupportedMethod{name}
	}
	return driver, nil
}
