forked from TrueCloudLab/frostfs-node
64 lines
1.7 KiB
Go
64 lines
1.7 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/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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}
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func (s *localStream) stream(ctx context.Context, ch chan<- []*object.ID) error {
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idList := make([]*object.ID, 0)
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if err := s.storage.Iterate(newFilterPipeline(s.query), 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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idList = append(idList, meta.Head().GetID())
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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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ch <- idList
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return nil
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}
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func newFilterPipeline(q query.Query) localstore.FilterPipeline {
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res := localstore.NewFilter(&localstore.FilterParams{
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Name: "SEARCH_OBJECTS_FILTER",
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FilterFunc: func(context.Context, *localstore.ObjectMeta) *localstore.FilterResult {
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return localstore.ResultPass()
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},
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})
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if err := res.PutSubFilter(localstore.SubFilterParams{
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FilterPipeline: localstore.NewFilter(&localstore.FilterParams{
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FilterFunc: func(_ context.Context, o *localstore.ObjectMeta) *localstore.FilterResult {
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if !q.Match(o.Head()) {
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return localstore.ResultFail()
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}
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return localstore.ResultPass()
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},
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}),
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OnIgnore: localstore.CodeFail,
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OnFail: localstore.CodeFail,
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}); err != nil {
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panic(errors.Wrap(err, "could not create all pass including filter"))
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}
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return res
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}
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