[#669] Use object cache in PutLockInfo optimization

Signed-off-by: Alex Vanin <a.vanin@yadro.com>

api/layer/system_object.go

@@ -34,13 +34,18 @@ func (n *layer) PutLockInfo(ctx context.Context, p *PutLockInfoParams) (err erro
 
 	versionNode := p.NodeVersion
 	// sometimes node version can be provided from executing context
-	// if value is not provided, make a tree service call
+	// if not, then receive node version from tree service
 	if versionNode == nil {
+		// check cache if node version is stored inside extendedObjectVersion
+		versionNode = n.getNodeVersionFromCache(p.ObjVersion)
+		if versionNode == nil {
+			// else get node version from tree service
 			versionNode, err = n.getNodeVersion(ctx, p.ObjVersion)
 			if err != nil {
 				return err
 			}
 		}
+	}
 
 	lockInfo, err := n.treeService.GetLock(ctx, cnrID, versionNode.ID)
 	if err != nil && !errorsStd.Is(err, ErrNodeNotFound) {

api/layer/tagging.go

@@ -7,6 +7,7 @@ import (
 	"github.com/nspcc-dev/neofs-s3-gw/api/data"
 	"github.com/nspcc-dev/neofs-s3-gw/api/errors"
 	cid "github.com/nspcc-dev/neofs-sdk-go/container/id"
+	oid "github.com/nspcc-dev/neofs-sdk-go/object/id"
 	"go.uber.org/zap"
 )
 
@@ -169,3 +170,25 @@ func (n *layer) getNodeVersion(ctx context.Context, objVersion *ObjectVersion) (
 
 	return version, err
 }
+
+func (n *layer) getNodeVersionFromCache(o *ObjectVersion) *data.NodeVersion {
+	if len(o.VersionID) == 0 || o.VersionID == data.UnversionedObjectVersionID {
+		return nil
+	}
+
+	var objID oid.ID
+	if objID.DecodeString(o.VersionID) != nil {
+		return nil
+	}
+
+	var addr oid.Address
+	addr.SetContainer(o.BktInfo.CID)
+	addr.SetObject(objID)
+
+	extObjectInfo := n.objCache.GetObject(addr)
+	if extObjectInfo == nil {
+		return nil
+	}
+
+	return extObjectInfo.NodeVersion
+}