forked from TrueCloudLab/frostfs-node
59 lines
1.5 KiB
Go
59 lines
1.5 KiB
Go
package shard
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import (
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"fmt"
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meta "github.com/TrueCloudLab/frostfs-node/pkg/local_object_storage/metabase"
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cid "github.com/TrueCloudLab/frostfs-sdk-go/container/id"
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"github.com/TrueCloudLab/frostfs-sdk-go/object"
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oid "github.com/TrueCloudLab/frostfs-sdk-go/object/id"
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)
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// SelectPrm groups the parameters of Select operation.
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type SelectPrm struct {
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cnr cid.ID
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filters object.SearchFilters
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}
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// SelectRes groups the resulting values of Select operation.
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type SelectRes struct {
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addrList []oid.Address
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}
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// SetContainerID is a Select option to set the container id to search in.
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func (p *SelectPrm) SetContainerID(cnr cid.ID) {
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p.cnr = cnr
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}
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// SetFilters is a Select option to set the object filters.
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func (p *SelectPrm) SetFilters(fs object.SearchFilters) {
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p.filters = fs
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}
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// AddressList returns list of addresses of the selected objects.
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func (r SelectRes) AddressList() []oid.Address {
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return r.addrList
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}
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// Select selects the objects from shard that match select parameters.
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//
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// Returns any error encountered that
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// did not allow to completely select the objects.
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func (s *Shard) Select(prm SelectPrm) (SelectRes, error) {
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if s.GetMode().NoMetabase() {
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return SelectRes{}, ErrDegradedMode
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}
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var selectPrm meta.SelectPrm
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selectPrm.SetFilters(prm.filters)
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selectPrm.SetContainerID(prm.cnr)
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mRes, err := s.metaBase.Select(selectPrm)
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if err != nil {
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return SelectRes{}, fmt.Errorf("could not select objects from metabase: %w", err)
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}
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return SelectRes{
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addrList: mRes.AddressList(),
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}, nil
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}
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