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objectstorage.go
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objectstorage.go
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/*
* Copyright 2022 The Dragonfly Authors
*
* 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.
*/
//go:generate mockgen -destination mocks/objectstorage_mock.go -source objectstorage.go -package mocks
package objectstorage
import (
"context"
"fmt"
"io"
"time"
)
type ObjectMetadata struct {
// Key is object key.
Key string
// ContentDisposition is Content-Disposition header.
ContentDisposition string
// ContentEncoding is Content-Encoding header.
ContentEncoding string
// ContentLanguage is Content-Language header.
ContentLanguage string
// ContentLanguage is Content-Length header.
ContentLength int64
// ContentType is Content-Type header.
ContentType string
// ETag is ETag header.
ETag string
// Digest is object digest.
Digest string
}
type BucketMetadata struct {
// Name is bucket name.
Name string
// CreateAt is bucket create time.
CreateAt time.Time
}
type ObjectStorage interface {
// GetBucketMetadata returns metadata of bucket.
GetBucketMetadata(ctx context.Context, bucketName string) (*BucketMetadata, error)
// CreateBucket creates bucket of object storage.
CreateBucket(ctx context.Context, bucketName string) error
// DeleteBucket deletes bucket of object storage.
DeleteBucket(ctx context.Context, bucketName string) error
// ListBucketMetadatas returns metadata of buckets.
ListBucketMetadatas(ctx context.Context) ([]*BucketMetadata, error)
// IsBucketExist returns whether the bucket exists.
IsBucketExist(ctx context.Context, bucketName string) (bool, error)
// GetObjectMetadata returns metadata of object.
GetObjectMetadata(ctx context.Context, bucketName, objectKey string) (*ObjectMetadata, bool, error)
// GetOject returns data of object.
GetOject(ctx context.Context, bucketName, objectKey string) (io.ReadCloser, error)
// PutObject puts data of object.
PutObject(ctx context.Context, bucketName, objectKey, digest string, reader io.Reader) error
// DeleteObject deletes data of object.
DeleteObject(ctx context.Context, bucketName, objectKey string) error
// ListObjectMetadatas returns metadata of objects.
ListObjectMetadatas(ctx context.Context, bucketName, prefix, marker string, limit int64) ([]*ObjectMetadata, error)
// IsObjectExist returns whether the object exists.
IsObjectExist(ctx context.Context, bucketName, objectKey string) (bool, error)
// GetSignURL returns sign url of object.
GetSignURL(ctx context.Context, bucketName, objectKey string, method Method, expire time.Duration) (string, error)
}
// New object storage interface.
func New(name, region, endpoint, accessKey, secretKey string) (ObjectStorage, error) {
switch name {
case ServiceNameS3:
return newS3(region, endpoint, accessKey, secretKey)
case ServiceNameOSS:
return newOSS(region, endpoint, accessKey, secretKey)
case ServiceNameOBS:
return newOBS(region, endpoint, accessKey, secretKey)
}
return nil, fmt.Errorf("unknow service name %s", name)
}