minio/pkg/storage/donut/donut_public_interfaces.go
2015-05-21 11:13:49 -07:00

58 lines
1.8 KiB
Go

/*
* Minimalist Object Storage, (C) 2015 Minio, 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 donut
import "io"
// Collection of Donut specification interfaces
// Donut is a collection of object storage and management interface
type Donut interface {
ObjectStorage
Management
}
// ObjectStorage is a donut object storage interface
type ObjectStorage interface {
// Storage service Operations
GetBucketMetadata(bucket string) (map[string]string, error)
SetBucketMetadata(bucket string, metadata map[string]string) error
ListBuckets() (map[string]map[string]string, error)
MakeBucket(bucket, acl string) error
// Bucket Operations
ListObjects(bucket, prefix, marker, delim string, maxKeys int) (result []string, prefixes []string, isTruncated bool, err error)
// Object Operations
GetObject(bucket, object string) (io.ReadCloser, int64, error)
GetObjectMetadata(bucket, object string) (map[string]string, error)
PutObject(bucket, object, expectedMD5Sum string, reader io.ReadCloser, metadata map[string]string) (string, error)
}
// Management is a donut management system interface
type Management interface {
Heal() error
Rebalance() error
Info() (map[string][]string, error)
AttachNode(node Node) error
DetachNode(node Node) error
SaveConfig() error
LoadConfig() error
}