minio/pkg/storage/donut/interfaces.go
2015-06-24 21:03:39 -07:00

73 lines
2.1 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"
"github.com/minio/minio/pkg/storage/donut/disk"
)
// 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) (objects []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
}
// Node interface for node management
type Node interface {
ListDisks() (map[int]disk.Disk, error)
AttachDisk(disk disk.Disk, diskOrder int) error
DetachDisk(diskOrder int) error
GetNodeName() string
SaveConfig() error
LoadConfig() error
}