54 lines
989 B
Go
54 lines
989 B
Go
package object
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import (
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"crypto/sha256"
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"github.com/nspcc-dev/neofs-api-go/v2/refs"
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"github.com/pkg/errors"
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)
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// ID represents object identifier that
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// supports different type of values.
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type ID struct {
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val []byte
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}
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// SetSHA256 sets object identifier value to SHA256 checksum.
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func (id *ID) SetSHA256(v [sha256.Size]byte) {
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if id != nil {
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id.val = v[:]
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}
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}
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// ToV2 converts ID to v2 ObjectID message.
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func (id *ID) ToV2() *refs.ObjectID {
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if id != nil {
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idV2 := new(refs.ObjectID)
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idV2.SetValue(id.val)
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return idV2
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}
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return nil
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}
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// IDFromV2 converts v2 ObjectID message to ID.
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//
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// Returns an error if the format of the identifier
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// in the message is broken.
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func IDFromV2(idV2 *refs.ObjectID) (*ID, error) {
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if idV2 == nil {
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return nil, nil
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}
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val := idV2.GetValue()
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if ln := len(val); ln != sha256.Size {
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return nil, errors.Errorf("could not convert %T to %T: invalid length %d",
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idV2, (*ID)(nil), ln,
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)
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}
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return &ID{
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val: val,
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}, nil
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}
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