63 lines
2.0 KiB
Go
63 lines
2.0 KiB
Go
/*
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* Copyright 2020 The Dragonfly Authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package storedriver
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import (
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"fmt"
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"path/filepath"
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"strings"
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"d7y.io/dragonfly/v2/cdnsystem/plugins"
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"d7y.io/dragonfly/v2/pkg/util/fileutils"
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"github.com/mitchellh/mapstructure"
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)
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// DriverBuilder is a function that creates a new storage driver plugin instant with the giving Config.
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type DriverBuilder func(cfg *Config) (Driver, error)
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// Register defines an interface to register a driver with specified name.
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// All drivers should call this function to register itself to the driverFactory.
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func Register(name string, builder DriverBuilder) error {
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name = strings.ToLower(name)
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// plugin builder
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var f = func(conf interface{}) (plugins.Plugin, error) {
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cfg := &Config{}
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if err := mapstructure.Decode(conf, cfg); err != nil {
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return nil, fmt.Errorf("parse config: %v", err)
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}
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// prepare the base dir
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if !filepath.IsAbs(cfg.BaseDir) {
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return nil, fmt.Errorf("not absolute path: %s", cfg.BaseDir)
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}
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if err := fileutils.MkdirAll(cfg.BaseDir); err != nil {
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return nil, fmt.Errorf("create baseDir %s: %v", cfg.BaseDir, err)
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}
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return newDriverPlugin(name, builder, cfg)
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}
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return plugins.RegisterPluginBuilder(plugins.StorageDriverPlugin, name, f)
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}
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// Get a store from manager with specified name.
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func Get(name string) (Driver, bool) {
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v, ok := plugins.GetPlugin(plugins.StorageDriverPlugin, strings.ToLower(name))
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if !ok {
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return nil, false
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}
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return v.(*driverPlugin).instance, true
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}
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