forked from TrueCloudLab/frostfs-node
131 lines
3.3 KiB
Go
131 lines
3.3 KiB
Go
package implementations
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import (
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"context"
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"github.com/multiformats/go-multiaddr"
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"github.com/nspcc-dev/neofs-api-go/object"
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"github.com/nspcc-dev/neofs-api-go/refs"
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"github.com/nspcc-dev/neofs-api-go/service"
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"github.com/nspcc-dev/neofs-node/lib/localstore"
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"github.com/nspcc-dev/neofs-node/lib/replication"
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"github.com/pkg/errors"
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"go.uber.org/zap"
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)
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type (
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// ObjectStorage is an interface of encapsulated ObjectReceptacle and ObjectSource pair.
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ObjectStorage interface {
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replication.ObjectReceptacle
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replication.ObjectSource
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}
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objectStorage struct {
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ls localstore.Localstore
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executor SelectiveContainerExecutor
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log *zap.Logger
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}
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// ObjectStorageParams groups the parameters of ObjectStorage constructor.
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ObjectStorageParams struct {
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Localstore localstore.Localstore
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SelectiveContainerExecutor SelectiveContainerExecutor
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Logger *zap.Logger
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}
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)
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const objectSourceInstanceFailMsg = "could not create object source"
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var errNilObject = errors.New("object is nil")
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var errCouldNotGetObject = errors.New("could not get object from any node")
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func (s *objectStorage) Put(ctx context.Context, params replication.ObjectStoreParams) error {
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if params.Object == nil {
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return errNilObject
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} else if len(params.Nodes) == 0 {
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if s.ls == nil {
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return errEmptyLocalstore
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}
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return s.ls.Put(ctx, params.Object)
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}
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nodes := make([]multiaddr.Multiaddr, len(params.Nodes))
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for i := range params.Nodes {
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nodes[i] = params.Nodes[i].Node
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}
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return s.executor.Put(ctx, &PutParams{
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SelectiveParams: SelectiveParams{
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CID: params.Object.SystemHeader.CID,
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Nodes: nodes,
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TTL: service.NonForwardingTTL,
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IDList: make([]ObjectID, 1),
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},
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Object: params.Object,
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Handler: func(node multiaddr.Multiaddr, valid bool) {
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if params.Handler == nil {
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return
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}
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for i := range params.Nodes {
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if params.Nodes[i].Node.Equal(node) {
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params.Handler(params.Nodes[i], valid)
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return
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}
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}
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},
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})
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}
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func (s *objectStorage) Get(ctx context.Context, addr Address) (res *Object, err error) {
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if s.ls != nil {
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if has, err := s.ls.Has(addr); err == nil && has {
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if res, err = s.ls.Get(addr); err == nil {
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return res, err
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}
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}
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}
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if err = s.executor.Get(ctx, &GetParams{
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SelectiveParams: SelectiveParams{
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CID: addr.CID,
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TTL: service.NonForwardingTTL,
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IDList: []ObjectID{addr.ObjectID},
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Breaker: func(refs.Address) (cFlag ProgressControlFlag) {
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if res != nil {
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cFlag = BreakProgress
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}
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return
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},
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},
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Handler: func(node multiaddr.Multiaddr, obj *object.Object) { res = obj },
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}); err != nil {
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return
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} else if res == nil {
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return nil, errCouldNotGetObject
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}
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return
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}
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// NewObjectStorage encapsulates Localstore and SelectiveContainerExecutor
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// and returns ObjectStorage interface.
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func NewObjectStorage(p ObjectStorageParams) (ObjectStorage, error) {
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if p.Logger == nil {
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return nil, errors.Wrap(errEmptyLogger, objectSourceInstanceFailMsg)
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}
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if p.Localstore == nil {
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p.Logger.Warn("local storage not provided")
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}
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if p.SelectiveContainerExecutor == nil {
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p.Logger.Warn("object container handler not provided")
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}
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return &objectStorage{
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ls: p.Localstore,
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executor: p.SelectiveContainerExecutor,
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log: p.Logger,
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}, nil
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}
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