forked from TrueCloudLab/frostfs-node
52 lines
1.1 KiB
Go
52 lines
1.1 KiB
Go
package localstore
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import (
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"context"
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"github.com/nspcc-dev/neofs-api-go/hash"
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"github.com/nspcc-dev/neofs-api-go/refs"
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"github.com/pkg/errors"
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)
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// StoreEpochValue is a context key of object storing epoch number.
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const StoreEpochValue = "store epoch"
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func (l *localstore) Meta(key refs.Address) (*ObjectMeta, error) {
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var (
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err error
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meta ObjectMeta
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k, v []byte
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)
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k, err = key.Hash()
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if err != nil {
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return nil, errors.Wrap(err, "Localstore Meta failed on key.Marshal")
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}
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v, err = l.metaBucket.Get(k)
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if err != nil {
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return nil, errors.Wrap(err, "Localstore Meta failed on metaBucket.Get")
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}
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if err := meta.Unmarshal(v); err != nil {
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return nil, errors.Wrap(err, "Localstore Metafailed on ObjectMeta.Unmarshal")
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}
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return &meta, nil
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}
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func metaFromObject(ctx context.Context, obj *Object) *ObjectMeta {
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meta := new(ObjectMeta)
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o := *obj
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meta.Object = &o
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meta.Object.Payload = nil
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meta.PayloadSize = uint64(len(obj.Payload))
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meta.PayloadHash = hash.Sum(obj.Payload)
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storeEpoch, ok := ctx.Value(StoreEpochValue).(uint64)
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if ok {
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meta.StoreEpoch = storeEpoch
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}
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return meta
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}
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