58 lines
1.4 KiB
Go
58 lines
1.4 KiB
Go
package shard
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import (
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"fmt"
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cid "github.com/nspcc-dev/neofs-api-go/pkg/container/id"
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objectSDK "github.com/nspcc-dev/neofs-api-go/pkg/object"
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meta "github.com/nspcc-dev/neofs-node/pkg/local_object_storage/metabase"
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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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cid *cid.ID
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filters objectSDK.SearchFilters
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}
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// SelectRes groups resulting values of Select operation.
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type SelectRes struct {
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addrList []*objectSDK.Address
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}
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// WithContainerID is a Select option to set the container id to search in.
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func (p *SelectPrm) WithContainerID(cid *cid.ID) *SelectPrm {
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if p != nil {
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p.cid = cid
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}
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return p
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}
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// WithFilters is a Select option to set the object filters.
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func (p *SelectPrm) WithFilters(fs objectSDK.SearchFilters) *SelectPrm {
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if p != nil {
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p.filters = fs
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}
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return p
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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() []*objectSDK.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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addrList, err := meta.Select(s.metaBase, prm.cid, prm.filters)
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if err != nil {
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return nil, 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: addrList,
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}, nil
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}
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