forked from TrueCloudLab/frostfs-node
68 lines
1.5 KiB
Go
68 lines
1.5 KiB
Go
package searchsvc
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import (
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"context"
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"github.com/nspcc-dev/neofs-api-go/pkg/container"
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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/local_object_storage/bucket"
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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/services/object/search/query"
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"github.com/pkg/errors"
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)
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type localStream struct {
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query query.Query
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storage *localstore.Storage
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cid *container.ID
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}
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type searchQueryFilter struct {
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localstore.FilterPipeline
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query query.Query
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ch chan<- []*objectSDK.ID
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cid *container.ID
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}
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func (s *localStream) stream(ctx context.Context, ch chan<- []*objectSDK.ID) error {
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filter := &searchQueryFilter{
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query: s.query,
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ch: ch,
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cid: s.cid,
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}
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if err := s.storage.Iterate(filter, func(meta *localstore.ObjectMeta) bool {
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select {
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case <-ctx.Done():
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return true
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default:
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return false
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}
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}); err != nil && !errors.Is(errors.Cause(err), bucket.ErrIteratingAborted) {
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return errors.Wrapf(err, "(%T) could not iterate over local storage", s)
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}
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return nil
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}
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func (f *searchQueryFilter) Pass(ctx context.Context, meta *localstore.ObjectMeta) *localstore.FilterResult {
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loop:
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for obj := meta.Head(); obj != nil; obj = obj.GetParent() {
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if !f.cid.Equal(obj.GetContainerID()) || !f.query.Match(obj) {
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continue
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}
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select {
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case <-ctx.Done():
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break loop
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case f.ch <- []*objectSDK.ID{obj.GetID()}:
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}
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}
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return localstore.ResultPass()
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}
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