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51 lines
1.3 KiB
51 lines
1.3 KiB
package donut
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import (
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"io"
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)
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// Collection of Donut specification interfaces
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// Donut interface
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type Donut interface {
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CreateBucket(bucket string) error
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GetObjectReader(bucket, object string) (io.ReadCloser, error)
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GetObjectWriter(bucket, object string) (ObjectWriter, error)
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GetObjectMetadata(bucket, object string) (map[string]string, error)
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ListBuckets() ([]string, error)
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ListObjects(bucket string) ([]string, error)
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}
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// Bucket interface
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type Bucket interface {
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GetNodes() ([]string, error)
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AddNode(nodeID, bucketID string) error
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}
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// Node interface
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type Node interface {
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CreateBucket(bucket string) error
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GetBuckets() ([]string, error)
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GetDonutMetadata(bucket, object string) (map[string]string, error)
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GetMetadata(bucket, object string) (map[string]string, error)
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GetReader(bucket, object string) (io.ReadCloser, error)
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GetWriter(bucket, object string) (Writer, error)
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ListObjects(bucket string) ([]string, error)
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}
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// ObjectWriter interface
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type ObjectWriter interface {
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Close() error
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CloseWithError(error) error
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GetMetadata() (map[string]string, error)
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SetMetadata(map[string]string) error
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Write([]byte) (int, error)
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}
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// Writer interface
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type Writer interface {
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ObjectWriter
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GetDonutMetadata() (map[string]string, error)
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SetDonutMetadata(map[string]string) error
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}
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