forked from TrueCloudLab/rclone
83 lines
2.5 KiB
Go
83 lines
2.5 KiB
Go
// Copyright (C) 2019 Storj Labs, Inc.
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// See LICENSE for copying information.
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package metainfo
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import (
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"context"
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"time"
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"storj.io/common/storj"
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)
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// CreateObject has optional parameters that can be set.
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type CreateObject struct {
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Metadata map[string]string
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ContentType string
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Expires time.Time
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storj.RedundancyScheme
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storj.EncryptionParameters
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}
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// Object converts the CreateObject to an object with unitialized values.
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func (create CreateObject) Object(bucket storj.Bucket, path storj.Path) storj.Object {
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return storj.Object{
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Bucket: bucket,
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Path: path,
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Metadata: create.Metadata,
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ContentType: create.ContentType,
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Expires: create.Expires,
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Stream: storj.Stream{
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Size: -1, // unknown
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Checksum: nil, // unknown
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SegmentCount: -1, // unknown
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FixedSegmentSize: -1, // unknown
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RedundancyScheme: create.RedundancyScheme,
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EncryptionParameters: create.EncryptionParameters,
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},
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}
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}
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// ReadOnlyStream is an interface for reading segment information.
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type ReadOnlyStream interface {
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Info() storj.Object
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// SegmentsAt returns the segment that contains the byteOffset and following segments.
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// Limit specifies how much to return at most.
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SegmentsAt(ctx context.Context, byteOffset int64, limit int64) (infos []storj.Segment, more bool, err error)
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// Segments returns the segment at index.
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// Limit specifies how much to return at most.
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Segments(ctx context.Context, index int64, limit int64) (infos []storj.Segment, more bool, err error)
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}
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// MutableObject is an interface for manipulating creating/deleting object stream.
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type MutableObject interface {
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// Info gets the current information about the object.
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Info() storj.Object
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// CreateStream creates a new stream for the object.
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CreateStream(ctx context.Context) (MutableStream, error)
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// ContinueStream starts to continue a partially uploaded stream.
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ContinueStream(ctx context.Context) (MutableStream, error)
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// DeleteStream deletes any information about this objects stream.
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DeleteStream(ctx context.Context) error
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// Commit commits the changes to the database.
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Commit(ctx context.Context) error
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}
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// MutableStream is an interface for manipulating stream information.
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type MutableStream interface {
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BucketName() string
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Path() string
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Expires() time.Time
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Metadata() ([]byte, error)
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// AddSegments adds segments to the stream.
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AddSegments(ctx context.Context, segments ...storj.Segment) error
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// UpdateSegments updates information about segments.
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UpdateSegments(ctx context.Context, segments ...storj.Segment) error
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}
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