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" ) // 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 } // SetAddress is an Exists option to set object checked for existence. func (p *ExistsPrm) SetAddress(addr oid.Address) { p.addr = addr } // 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. // Returns the object.ErrObjectIsExpired if the object is presented but already expired. func (s *Shard) Exists(prm ExistsPrm) (ExistsRes, error) { var exists bool var err error if s.GetMode().NoMetabase() { var p blobstor.ExistsPrm p.SetAddress(prm.addr) var res blobstor.ExistsRes res, err = s.blobStor.Exists(p) exists = res.Exists() } else { var existsPrm meta.ExistsPrm existsPrm.SetAddress(prm.addr) var res meta.ExistsRes res, err = s.metaBase.Exists(existsPrm) exists = res.Exists() } return ExistsRes{ ex: exists, }, err }