1c30414a6c
Core changes: * avoid package-colliding variable naming * avoid using pointers to IDs where unnecessary * avoid using `idSDK` import alias pattern * use `EncodeToString` for protocol string calculation and `String` for printing Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
63 lines
1.6 KiB
Go
63 lines
1.6 KiB
Go
package shard
|
|
|
|
import (
|
|
"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/blobstor"
|
|
meta "github.com/nspcc-dev/neofs-node/pkg/local_object_storage/metabase"
|
|
oid "github.com/nspcc-dev/neofs-sdk-go/object/id"
|
|
"go.uber.org/zap"
|
|
)
|
|
|
|
// ExistsPrm groups the parameters of Exists operation.
|
|
type ExistsPrm struct {
|
|
addr oid.Address
|
|
}
|
|
|
|
// ExistsRes groups the resulting values of Exists operation.
|
|
type ExistsRes struct {
|
|
ex bool
|
|
}
|
|
|
|
// WithAddress is an Exists option to set object checked for existence.
|
|
func (p *ExistsPrm) WithAddress(addr oid.Address) *ExistsPrm {
|
|
if p != nil {
|
|
p.addr = addr
|
|
}
|
|
|
|
return p
|
|
}
|
|
|
|
// Exists returns the fact that the object is in the shard.
|
|
func (p *ExistsRes) Exists() bool {
|
|
return p.ex
|
|
}
|
|
|
|
// Exists checks if object is presented in shard.
|
|
//
|
|
// Returns any error encountered that does not allow to
|
|
// unambiguously determine the presence of an object.
|
|
//
|
|
// Returns an error of type apistatus.ObjectAlreadyRemoved if object has been marked as removed.
|
|
func (s *Shard) Exists(prm *ExistsPrm) (*ExistsRes, error) {
|
|
exists, err := meta.Exists(s.metaBase, prm.addr)
|
|
if err != nil {
|
|
// If the shard is in degraded mode, try to consult blobstor directly.
|
|
// Otherwise, just return an error.
|
|
if s.GetMode() == ModeDegraded {
|
|
p := new(blobstor.ExistsPrm)
|
|
p.SetAddress(prm.addr)
|
|
|
|
res, bErr := s.blobStor.Exists(p)
|
|
if bErr == nil {
|
|
exists = res.Exists()
|
|
s.log.Warn("metabase existence check finished with error",
|
|
zap.Stringer("address", prm.addr),
|
|
zap.String("error", err.Error()))
|
|
err = nil
|
|
}
|
|
}
|
|
}
|
|
|
|
return &ExistsRes{
|
|
ex: exists,
|
|
}, err
|
|
}
|