137 lines
2.8 KiB
Go
137 lines
2.8 KiB
Go
package headsvc
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import (
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"context"
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objectSDK "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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objutil "github.com/nspcc-dev/neofs-node/pkg/services/object/util"
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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 RelationSearcher interface {
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SearchRelation(context.Context, *objectSDK.Address, *objutil.CommonPrm) (*objectSDK.ID, error)
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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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keyStorage *objutil.KeyStorage
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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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rightChildSearcher RelationSearcher
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}
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var ErrNotFound = errors.New("object header not found")
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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 (s *Service) Head(ctx context.Context, prm *Prm) (*Response, error) {
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// try to receive header of physically stored
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r, err := (&distributedHeader{
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cfg: s.cfg,
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}).head(ctx, prm)
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if err == nil || prm.common.LocalOnly() {
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return r, err
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}
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// try to find far right child that carries header of desired object
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rightChildID, err := s.rightChildSearcher.SearchRelation(ctx, prm.addr, prm.common)
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if err != nil {
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return nil, errors.Wrapf(err, "(%T) could not find right child", s)
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}
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addr := objectSDK.NewAddress()
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addr.SetContainerID(prm.addr.GetContainerID())
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addr.SetObjectID(rightChildID)
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r, err = s.Head(ctx, new(Prm).WithAddress(addr).WithCommonPrm(prm.common))
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if err != nil {
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return nil, errors.Wrapf(err, "(%T) could not get right child header", s)
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}
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rightChild := r.Header()
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// TODO: check if received parent has requested address
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return &Response{
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hdr: rightChild.GetParent(),
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rightChild: rightChild,
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}, nil
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}
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func WithKeyStorage(v *objutil.KeyStorage) Option {
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return func(c *cfg) {
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c.keyStorage = 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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func WithRightChildSearcher(v RelationSearcher) Option {
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return func(c *cfg) {
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c.rightChildSearcher = v
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}
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}
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