forked from TrueCloudLab/frostfs-node
141 lines
2.7 KiB
Go
141 lines
2.7 KiB
Go
package searchsvc
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import (
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"context"
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"crypto/ecdsa"
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"io"
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"sync"
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"github.com/nspcc-dev/neofs-api-go/pkg/object"
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"github.com/nspcc-dev/neofs-node/pkg/core/container"
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"github.com/nspcc-dev/neofs-node/pkg/core/netmap"
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"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/localstore"
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"github.com/nspcc-dev/neofs-node/pkg/network"
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"github.com/nspcc-dev/neofs-node/pkg/services/object/search/query/v1"
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"github.com/nspcc-dev/neofs-node/pkg/util"
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"github.com/pkg/errors"
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)
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type Service struct {
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*cfg
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}
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type Option func(*cfg)
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type cfg struct {
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key *ecdsa.PrivateKey
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localStore *localstore.Storage
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cnrSrc container.Source
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netMapSrc netmap.Source
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workerPool util.WorkerPool
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localAddrSrc network.LocalAddressSource
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}
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func defaultCfg() *cfg {
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return &cfg{
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workerPool: new(util.SyncWorkerPool),
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}
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}
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func NewService(opts ...Option) *Service {
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c := defaultCfg()
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for i := range opts {
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opts[i](c)
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}
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return &Service{
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cfg: c,
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}
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}
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func (p *Service) Search(ctx context.Context, prm *Prm) (*Streamer, error) {
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return &Streamer{
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cfg: p.cfg,
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once: new(sync.Once),
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prm: prm,
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ctx: ctx,
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cache: make([][]*object.ID, 0, 10),
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}, nil
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}
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func (p *Service) SearchRightChild(ctx context.Context, addr *object.Address) (*object.ID, error) {
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streamer, err := p.Search(ctx, new(Prm).
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WithContainerID(addr.GetContainerID()).
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WithSearchQuery(
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query.NewRightChildQuery(addr.GetObjectID()),
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),
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)
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if err != nil {
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return nil, errors.Wrapf(err, "(%T) could not create search streamer", p)
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}
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res, err := readFullStream(streamer, 1)
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if err != nil {
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return nil, errors.Wrapf(err, "(%T) could not read full search stream", p)
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} else if ln := len(res); ln != 1 {
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return nil, errors.Errorf("(%T) unexpected amount of found objects %d", p, ln)
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}
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return res[0], nil
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}
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func readFullStream(s *Streamer, cap int) ([]*object.ID, error) {
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res := make([]*object.ID, 0, cap)
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for {
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r, err := s.Recv()
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if err != nil {
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if errors.Is(errors.Cause(err), io.EOF) {
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break
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}
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return nil, errors.Wrapf(err, "(%s) could not receive search result", "readFullStream")
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}
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res = append(res, r.IDList()...)
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}
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return res, nil
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}
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func WithKey(v *ecdsa.PrivateKey) Option {
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return func(c *cfg) {
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c.key = v
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}
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}
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func WithLocalStorage(v *localstore.Storage) Option {
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return func(c *cfg) {
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c.localStore = v
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}
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}
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func WithContainerSource(v container.Source) Option {
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return func(c *cfg) {
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c.cnrSrc = v
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}
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}
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func WithNetworkMapSource(v netmap.Source) Option {
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return func(c *cfg) {
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c.netMapSrc = v
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}
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}
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func WithWorkerPool(v util.WorkerPool) Option {
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return func(c *cfg) {
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c.workerPool = v
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}
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}
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func WithLocalAddressSource(v network.LocalAddressSource) Option {
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return func(c *cfg) {
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c.localAddrSrc = v
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}
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}
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