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minio/pkg/donut/interfaces.go

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2.8 KiB

/*
* Minio Cloud 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/probe"
)
// Collection of Donut specification interfaces
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// Interface is a collection of cloud storage and management interface
type Interface interface {
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CloudStorage
Management
}
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// CloudStorage is a donut cloud storage interface
type CloudStorage interface {
// Storage service operations
GetBucketMetadata(bucket string, signature *Signature) (BucketMetadata, *probe.Error)
SetBucketMetadata(bucket string, metadata map[string]string, signature *Signature) *probe.Error
ListBuckets(signature *Signature) ([]BucketMetadata, *probe.Error)
MakeBucket(bucket string, ACL string, location io.Reader, signature *Signature) *probe.Error
// Bucket operations
ListObjects(string, BucketResourcesMetadata, *Signature) ([]ObjectMetadata, BucketResourcesMetadata, *probe.Error)
// Object operations
GetObject(w io.Writer, bucket, object string, start, length int64) (int64, *probe.Error)
GetObjectMetadata(bucket, object string, signature *Signature) (ObjectMetadata, *probe.Error)
// bucket, object, expectedMD5Sum, size, reader, metadata, signature
CreateObject(string, string, string, int64, io.Reader, map[string]string, *Signature) (ObjectMetadata, *probe.Error)
Multipart
}
// Multipart API
type Multipart interface {
NewMultipartUpload(bucket, key, contentType string, signature *Signature) (string, *probe.Error)
AbortMultipartUpload(bucket, key, uploadID string, signature *Signature) *probe.Error
CreateObjectPart(string, string, string, int, string, string, int64, io.Reader, *Signature) (string, *probe.Error)
CompleteMultipartUpload(bucket, key, uploadID string, data io.Reader, signature *Signature) (ObjectMetadata, *probe.Error)
ListMultipartUploads(string, BucketMultipartResourcesMetadata, *Signature) (BucketMultipartResourcesMetadata, *probe.Error)
ListObjectParts(string, string, ObjectResourcesMetadata, *Signature) (ObjectResourcesMetadata, *probe.Error)
}
// Management is a donut management system interface
type Management interface {
Heal() *probe.Error
Rebalance() *probe.Error
Info() (map[string][]string, *probe.Error)
AttachNode(hostname string, disks []string) *probe.Error
DetachNode(hostname string) *probe.Error
}