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			103 lines
		
	
	
		
			4.9 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			103 lines
		
	
	
		
			4.9 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
/*
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 * Minio Cloud Storage, (C) 2016 Minio, Inc.
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 *
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 * Licensed under the Apache License, Version 2.0 (the "License");
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 * you may not use this file except in compliance with the License.
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 * You may obtain a copy of the License at
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 *
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 *     http://www.apache.org/licenses/LICENSE-2.0
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 *
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 * Unless required by applicable law or agreed to in writing, software
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 * distributed under the License is distributed on an "AS IS" BASIS,
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 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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 * See the License for the specific language governing permissions and
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 * limitations under the License.
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 */
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package cmd
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import (
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	"context"
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	"io"
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	"net/http"
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	"github.com/minio/minio-go/pkg/encrypt"
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	"github.com/minio/minio/pkg/hash"
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	"github.com/minio/minio/pkg/madmin"
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	"github.com/minio/minio/pkg/policy"
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)
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// ObjectOptions represents object options for ObjectLayer operations
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type ObjectOptions struct {
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	ServerSideEncryption encrypt.ServerSide
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}
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// LockType represents required locking for ObjectLayer operations
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type LockType int
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const (
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	noLock LockType = iota
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	readLock
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	writeLock
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)
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// ObjectLayer implements primitives for object API layer.
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type ObjectLayer interface {
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	// Storage operations.
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	Shutdown(context.Context) error
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	StorageInfo(context.Context) StorageInfo
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	// Bucket operations.
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	MakeBucketWithLocation(ctx context.Context, bucket string, location string) error
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	GetBucketInfo(ctx context.Context, bucket string) (bucketInfo BucketInfo, err error)
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	ListBuckets(ctx context.Context) (buckets []BucketInfo, err error)
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	DeleteBucket(ctx context.Context, bucket string) error
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	ListObjects(ctx context.Context, bucket, prefix, marker, delimiter string, maxKeys int) (result ListObjectsInfo, err error)
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	ListObjectsV2(ctx context.Context, bucket, prefix, continuationToken, delimiter string, maxKeys int, fetchOwner bool, startAfter string) (result ListObjectsV2Info, err error)
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	// Object operations.
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	// GetObjectNInfo returns a GetObjectReader that satisfies the
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	// ReadCloser interface. The Close method unlocks the object
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	// after reading, so it must always be called after usage.
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	//
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	// IMPORTANTLY, when implementations return err != nil, this
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	// function MUST NOT return a non-nil ReadCloser.
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	GetObjectNInfo(ctx context.Context, bucket, object string, rs *HTTPRangeSpec, h http.Header, lockType LockType, opts ObjectOptions) (reader *GetObjectReader, err error)
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	GetObject(ctx context.Context, bucket, object string, startOffset int64, length int64, writer io.Writer, etag string, opts ObjectOptions) (err error)
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	GetObjectInfo(ctx context.Context, bucket, object string, opts ObjectOptions) (objInfo ObjectInfo, err error)
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	PutObject(ctx context.Context, bucket, object string, data *hash.Reader, metadata map[string]string, opts ObjectOptions) (objInfo ObjectInfo, err error)
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	CopyObject(ctx context.Context, srcBucket, srcObject, destBucket, destObject string, srcInfo ObjectInfo, srcOpts, dstOpts ObjectOptions) (objInfo ObjectInfo, err error)
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	DeleteObject(ctx context.Context, bucket, object string) error
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	// Multipart operations.
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	ListMultipartUploads(ctx context.Context, bucket, prefix, keyMarker, uploadIDMarker, delimiter string, maxUploads int) (result ListMultipartsInfo, err error)
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	NewMultipartUpload(ctx context.Context, bucket, object string, metadata map[string]string, opts ObjectOptions) (uploadID string, err error)
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	CopyObjectPart(ctx context.Context, srcBucket, srcObject, destBucket, destObject string, uploadID string, partID int,
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		startOffset int64, length int64, srcInfo ObjectInfo, srcOpts, dstOpts ObjectOptions) (info PartInfo, err error)
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	PutObjectPart(ctx context.Context, bucket, object, uploadID string, partID int, data *hash.Reader, opts ObjectOptions) (info PartInfo, err error)
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	ListObjectParts(ctx context.Context, bucket, object, uploadID string, partNumberMarker int, maxParts int) (result ListPartsInfo, err error)
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	AbortMultipartUpload(ctx context.Context, bucket, object, uploadID string) error
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	CompleteMultipartUpload(ctx context.Context, bucket, object, uploadID string, uploadedParts []CompletePart) (objInfo ObjectInfo, err error)
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	// Healing operations.
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	ReloadFormat(ctx context.Context, dryRun bool) error
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	HealFormat(ctx context.Context, dryRun bool) (madmin.HealResultItem, error)
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	HealBucket(ctx context.Context, bucket string, dryRun bool) ([]madmin.HealResultItem, error)
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	HealObject(ctx context.Context, bucket, object string, dryRun bool) (madmin.HealResultItem, error)
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	ListBucketsHeal(ctx context.Context) (buckets []BucketInfo, err error)
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	ListObjectsHeal(ctx context.Context, bucket, prefix, marker, delimiter string, maxKeys int) (ListObjectsInfo, error)
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	// Policy operations
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	SetBucketPolicy(context.Context, string, *policy.Policy) error
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	GetBucketPolicy(context.Context, string) (*policy.Policy, error)
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	DeleteBucketPolicy(context.Context, string) error
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	// Supported operations check
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	IsNotificationSupported() bool
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	IsEncryptionSupported() bool
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	// Compression support check.
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	IsCompressionSupported() bool
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}
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