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get.go
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get.go
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package blobstor
import (
"errors"
"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/blobstor/common"
"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/util/logicerr"
apistatus "github.com/nspcc-dev/neofs-sdk-go/client/status"
oid "github.com/nspcc-dev/neofs-sdk-go/object/id"
)
// Get reads the object from b.
// If the descriptor is present, only one sub-storage is tried,
// Otherwise, each sub-storage is tried in order.
func (b *BlobStor) Get(prm common.GetPrm) (common.GetRes, error) {
b.modeMtx.RLock()
defer b.modeMtx.RUnlock()
if prm.StorageID == nil {
for i := range b.storage {
res, err := b.storage[i].Storage.Get(prm)
if err == nil || !errors.As(err, new(apistatus.ObjectNotFound)) {
return res, err
}
}
return common.GetRes{}, logicerr.Wrap(apistatus.ObjectNotFound{})
}
if len(prm.StorageID) == 0 {
return b.storage[len(b.storage)-1].Storage.Get(prm)
}
return b.storage[0].Storage.Get(prm)
}
// GetBytes reads object from the BlobStor by address into memory buffer in a
// canonical NeoFS binary format. Returns [apistatus.ObjectNotFound] if object
// is missing.
func (b *BlobStor) GetBytes(addr oid.Address, subStorageID []byte) ([]byte, error) {
b.modeMtx.RLock()
defer b.modeMtx.RUnlock()
var bs []byte
if subStorageID == nil {
for i := range b.storage {
var err error
bs, err = b.storage[i].Storage.GetBytes(addr)
if err == nil || !errors.As(err, new(apistatus.ObjectNotFound)) {
return bs, err
}
}
return nil, logicerr.Wrap(apistatus.ObjectNotFound{})
}
if len(subStorageID) == 0 {
return b.storage[len(b.storage)-1].Storage.GetBytes(addr)
}
return b.storage[0].Storage.GetBytes(addr)
}