forked from TrueCloudLab/frostfs-sdk-go
93 lines
2.2 KiB
Go
93 lines
2.2 KiB
Go
|
package object
|
||
|
|
|
||
|
|
import (
|
||
|
|
"bytes"
|
||
|
|
"crypto/sha256"
|
||
|
|
"errors"
|
||
|
|
"fmt"
|
||
|
|
|
||
|
|
"github.com/mr-tron/base58"
|
||
|
|
"github.com/nspcc-dev/neofs-api-go/v2/refs"
|
||
|
|
)
|
||
|
|
|
||
|
|
// ID represents v2-compatible object identifier.
|
||
|
|
type ID refs.ObjectID
|
||
|
|
|
||
|
|
var errInvalidIDString = errors.New("incorrect format of the string object ID")
|
||
|
|
|
||
|
|
// NewIDFromV2 wraps v2 ObjectID message to ID.
|
||
|
|
//
|
||
|
|
// Nil refs.ObjectID converts to nil.
|
||
|
|
func NewIDFromV2(idV2 *refs.ObjectID) *ID {
|
||
|
|
return (*ID)(idV2)
|
||
|
|
}
|
||
|
|
|
||
|
|
// NewID creates and initializes blank ID.
|
||
|
|
//
|
||
|
|
// Works similar as NewIDFromV2(new(ObjectID)).
|
||
|
|
//
|
||
|
|
// Defaults:
|
||
|
|
// - value: nil.
|
||
|
|
func NewID() *ID {
|
||
|
|
return NewIDFromV2(new(refs.ObjectID))
|
||
|
|
}
|
||
|
|
|
||
|
|
// SetSHA256 sets object identifier value to SHA256 checksum.
|
||
|
|
func (id *ID) SetSHA256(v [sha256.Size]byte) {
|
||
|
|
(*refs.ObjectID)(id).SetValue(v[:])
|
||
|
|
}
|
||
|
|
|
||
|
|
// Equal returns true if identifiers are identical.
|
||
|
|
func (id *ID) Equal(id2 *ID) bool {
|
||
|
|
return bytes.Equal(
|
||
|
|
(*refs.ObjectID)(id).GetValue(),
|
||
|
|
(*refs.ObjectID)(id2).GetValue(),
|
||
|
|
)
|
||
|
|
}
|
||
|
|
|
||
|
|
// ToV2 converts ID to v2 ObjectID message.
|
||
|
|
//
|
||
|
|
// Nil ID converts to nil.
|
||
|
|
func (id *ID) ToV2() *refs.ObjectID {
|
||
|
|
return (*refs.ObjectID)(id)
|
||
|
|
}
|
||
|
|
|
||
|
|
// Parse converts base58 string representation into ID.
|
||
|
|
func (id *ID) Parse(s string) error {
|
||
|
|
data, err := base58.Decode(s)
|
||
|
|
if err != nil {
|
||
|
|
return fmt.Errorf("could not parse object.ID from string: %w", err)
|
||
|
|
} else if len(data) != sha256.Size {
|
||
|
|
return errInvalidIDString
|
||
|
|
}
|
||
|
|
|
||
|
|
(*refs.ObjectID)(id).SetValue(data)
|
||
|
|
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
|
||
|
|
// String returns base58 string representation of ID.
|
||
|
|
func (id *ID) String() string {
|
||
|
|
return base58.Encode((*refs.ObjectID)(id).GetValue())
|
||
|
|
}
|
||
|
|
|
||
|
|
// Marshal marshals ID into a protobuf binary form.
|
||
|
|
func (id *ID) Marshal() ([]byte, error) {
|
||
|
|
return (*refs.ObjectID)(id).StableMarshal(nil)
|
||
|
|
}
|
||
|
|
|
||
|
|
// Unmarshal unmarshals protobuf binary representation of ID.
|
||
|
|
func (id *ID) Unmarshal(data []byte) error {
|
||
|
|
return (*refs.ObjectID)(id).Unmarshal(data)
|
||
|
|
}
|
||
|
|
|
||
|
|
// MarshalJSON encodes ID to protobuf JSON format.
|
||
|
|
func (id *ID) MarshalJSON() ([]byte, error) {
|
||
|
|
return (*refs.ObjectID)(id).MarshalJSON()
|
||
|
|
}
|
||
|
|
|
||
|
|
// UnmarshalJSON decodes ID from protobuf JSON format.
|
||
|
|
func (id *ID) UnmarshalJSON(data []byte) error {
|
||
|
|
return (*refs.ObjectID)(id).UnmarshalJSON(data)
|
||
|
|
}
|