Files
cloudpods/pkg/hostman/storageman/imagecachemanager_base.go
2021-12-31 06:09:16 +08:00

83 lines
2.5 KiB
Go

// Copyright 2019 Yunion
//
// 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 storageman
import (
"context"
"yunion.io/x/jsonutils"
"yunion.io/x/log"
api "yunion.io/x/onecloud/pkg/apis/compute"
)
type IImageCacheMangerFactory interface {
NewImageCacheManager(manager *SStorageManager, cachePath string, storage IStorage, storagecacheId string) IImageCacheManger
StorageType() string
}
var (
imageCacheManagerFactories = make(map[string]IImageCacheMangerFactory)
)
func registerimageCacheManagerFactory(factory IImageCacheMangerFactory) {
imageCacheManagerFactories[factory.StorageType()] = factory
}
func NewImageCacheManager(manager *SStorageManager, cachePath string, storage IStorage, storagecacheId string, storageType string) IImageCacheManger {
if factory, ok := imageCacheManagerFactories[storageType]; ok {
return factory.NewImageCacheManager(manager, cachePath, storage, storagecacheId)
}
log.Errorf("no image cache manager driver for %s found", storageType)
return nil
}
type IImageCacheManger interface {
GetId() string
GetPath() string
SetStoragecacheId(string)
// for diskhandler
PrefetchImageCache(ctx context.Context, data interface{}) (jsonutils.JSONObject, error)
DeleteImageCache(ctx context.Context, data interface{}) (jsonutils.JSONObject, error)
AcquireImage(ctx context.Context, input api.CacheImageInput, callback func(progress, progressMbps float64, totalSizeMb int64)) (IImageCache, error)
ReleaseImage(ctx context.Context, imageId string)
LoadImageCache(imageId string)
}
type SBaseImageCacheManager struct {
storageManager IStorageManager
storagecacaheId string
cachePath string
cachedImages map[string]IImageCache
}
func (c *SBaseImageCacheManager) GetPath() string {
return c.cachePath
}
func (c *SBaseImageCacheManager) GetId() string {
return c.storagecacaheId
}
func (c *SBaseImageCacheManager) SetStoragecacheId(scid string) {
c.storagecacaheId = scid
}
func (c *SBaseImageCacheManager) GetStorageManager() IStorageManager {
return c.storageManager
}