package shard import ( "fmt" objectcore "github.com/nspcc-dev/neofs-node/pkg/core/object" meta "github.com/nspcc-dev/neofs-node/pkg/local_object_storage/metabase" cid "github.com/nspcc-dev/neofs-sdk-go/container/id" "github.com/nspcc-dev/neofs-sdk-go/object" "go.uber.org/zap" ) // Cursor is a type for continuous object listing. type Cursor = meta.Cursor // ErrEndOfListing is returned from object listing with cursor // when storage can't return any more objects after provided // cursor. Use nil cursor object to start listing again. var ErrEndOfListing = meta.ErrEndOfListing type ListContainersPrm struct{} type ListContainersRes struct { containers []cid.ID } func (r ListContainersRes) Containers() []cid.ID { return r.containers } // ListWithCursorPrm contains parameters for ListWithCursor operation. type ListWithCursorPrm struct { count uint32 cursor *Cursor } // ListWithCursorRes contains values returned from ListWithCursor operation. type ListWithCursorRes struct { addrList []objectcore.AddressWithType cursor *Cursor } // WithCount sets maximum amount of addresses that ListWithCursor should return. func (p *ListWithCursorPrm) WithCount(count uint32) { p.count = count } // WithCursor sets cursor for ListWithCursor operation. For initial request, // ignore this param or use nil value. For consecutive requests, use value // from ListWithCursorRes. func (p *ListWithCursorPrm) WithCursor(cursor *Cursor) { p.cursor = cursor } // AddressList returns addresses selected by ListWithCursor operation. func (r ListWithCursorRes) AddressList() []objectcore.AddressWithType { return r.addrList } // Cursor returns cursor for consecutive listing requests. func (r ListWithCursorRes) Cursor() *Cursor { return r.cursor } // List returns all objects physically stored in the Shard. func (s *Shard) List() (res SelectRes, err error) { if s.GetMode().NoMetabase() { return SelectRes{}, ErrDegradedMode } lst, err := s.metaBase.Containers() if err != nil { return res, fmt.Errorf("can't list stored containers: %w", err) } filters := object.NewSearchFilters() filters.AddPhyFilter() for i := range lst { var sPrm meta.SelectPrm sPrm.SetContainerID(lst[i]) sPrm.SetFilters(filters) sRes, err := s.metaBase.Select(sPrm) // consider making List in metabase if err != nil { s.log.Debug("can't select all objects", zap.Stringer("cid", lst[i]), zap.String("error", err.Error())) continue } res.addrList = append(res.addrList, sRes.AddressList()...) } return res, nil } func (s *Shard) ListContainers(_ ListContainersPrm) (ListContainersRes, error) { if s.GetMode().NoMetabase() { return ListContainersRes{}, ErrDegradedMode } containers, err := s.metaBase.Containers() if err != nil { return ListContainersRes{}, fmt.Errorf("could not get list of containers: %w", err) } return ListContainersRes{ containers: containers, }, nil } // ListWithCursor lists physical objects available in shard starting from // cursor. Includes regular, tombstone and storage group objects. Does not // include inhumed objects. Use cursor value from response for consecutive requests. // // Returns ErrEndOfListing if there are no more objects to return or count // parameter set to zero. func (s *Shard) ListWithCursor(prm ListWithCursorPrm) (ListWithCursorRes, error) { if s.GetMode().NoMetabase() { return ListWithCursorRes{}, ErrDegradedMode } var metaPrm meta.ListPrm metaPrm.SetCount(prm.count) metaPrm.SetCursor(prm.cursor) res, err := s.metaBase.ListWithCursor(metaPrm) if err != nil { return ListWithCursorRes{}, fmt.Errorf("could not get list of objects: %w", err) } return ListWithCursorRes{ addrList: res.AddressList(), cursor: res.Cursor(), }, nil }