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satellite/metainfo: Improve docs & use common funcs

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* Use unexported existent method in logic that was duplicated in some
  exported methods.
* Log a forgotten internal error.
* Improve the documentation adding more and fixing some to fit to our
  code style conventions.

Change-Id: Ie6f8bc59f9089f92b8b0d1b4c09c2142c3f273f5
This commit is contained in:
Ivan Fraixedes 2019-12-10 12:15:35 +01:00 committed by Ivan Fraixedes
parent ff854b3955
commit 770123de10
2 changed files with 14 additions and 28 deletions
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23
satellite/metainfo/metainfo.go
View File

@ -656,7 +656,7 @@ func (endpoint *Endpoint) mapNodesFor(ctx context.Context, pieces []*pb.RemotePi
return peerIDMap, nil
}
// CreatePath will create a Segment path
// CreatePath creates a Segment path.
func CreatePath(ctx context.Context, projectID uuid.UUID, segmentIndex int64, bucket, path []byte) (_ storj.Path, err error) {
defer mon.Task()(&ctx)(&err)
if segmentIndex < -1 {
@ -1370,7 +1370,7 @@ func (endpoint *Endpoint) ListObjects(ctx context.Context, req *pb.ObjectListReq
}, nil
}
// BeginDeleteObject begins object deletion process
// BeginDeleteObject begins object deletion process.
func (endpoint *Endpoint) BeginDeleteObject(ctx context.Context, req *pb.ObjectBeginDeleteRequest) (resp *pb.ObjectBeginDeleteResponse, err error) {
defer mon.Task()(&ctx)(&err)
@ -1411,7 +1411,7 @@ func (endpoint *Endpoint) BeginDeleteObject(ctx context.Context, req *pb.ObjectB
return nil, rpcstatus.Error(rpcstatus.Internal, err.Error())
}
_, _, err = endpoint.getPointer(ctx, keyInfo.ProjectID, -1, satStreamID.Bucket, satStreamID.EncryptedPath)
_, _, err = endpoint.getPointer(ctx, keyInfo.ProjectID, lastSegment, satStreamID.Bucket, satStreamID.EncryptedPath)
if err != nil {
return nil, err
}
@ -1856,17 +1856,9 @@ func (endpoint *Endpoint) ListSegments(ctx context.Context, req *pb.SegmentListR
limit = listLimit
}
path, err := CreatePath(ctx, keyInfo.ProjectID, lastSegment, streamID.Bucket, streamID.EncryptedPath)
pointer, _, err := endpoint.getPointer(ctx, keyInfo.ProjectID, lastSegment, streamID.Bucket, streamID.EncryptedPath)
if err != nil {
return nil, rpcstatus.Error(rpcstatus.Internal, err.Error())
}
pointer, err := endpoint.metainfo.Get(ctx, path)
if err != nil {
if storj.ErrObjectNotFound.Has(err) {
return nil, rpcstatus.Error(rpcstatus.NotFound, err.Error())
}
return nil, rpcstatus.Error(rpcstatus.Internal, err.Error())
return nil, err
}
streamMeta := &pb.StreamMeta{}
@ -2110,11 +2102,12 @@ func (endpoint *Endpoint) DownloadSegment(ctx context.Context, req *pb.SegmentDo
return &pb.SegmentDownloadResponse{}, rpcstatus.Error(rpcstatus.Internal, "invalid type of pointer")
}
// getPointer returns the pointer and the segment path projectID, bucket and
// encryptedPath. It returns an error with a specific RPC status.
func (endpoint *Endpoint) getPointer(
ctx context.Context, projectID uuid.UUID, segmentIndex int64, bucket, encryptedPath []byte,
) (_ *pb.Pointer, _ string, err error) {
defer mon.Task()(&ctx, projectID.String(), segmentIndex, bucket, encryptedPath)(&err)
path, err := CreatePath(ctx, projectID, segmentIndex, bucket, encryptedPath)
if err != nil {
return nil, "", rpcstatus.Error(rpcstatus.InvalidArgument, err.Error())
@ -2125,6 +2118,8 @@ func (endpoint *Endpoint) getPointer(
if storj.ErrObjectNotFound.Has(err) {
return nil, "", rpcstatus.Error(rpcstatus.NotFound, err.Error())
}
endpoint.log.Error("error getting the pointer from metainfo service", zap.Error(err))
return nil, "", rpcstatus.Error(rpcstatus.Internal, err.Error())
}
return pointer, path, nil

19
satellite/metainfo/service.go
View File

@ -166,27 +166,18 @@ func (s *Service) UpdatePiecesCheckDuplicates(ctx context.Context, path string,
}
}
// Get gets pointer from db
func (s *Service) Get(ctx context.Context, path string) (pointer *pb.Pointer, err error) {
// Get gets decoded pointer from DB.
func (s *Service) Get(ctx context.Context, path string) (_ *pb.Pointer, err error) {
defer mon.Task()(&ctx)(&err)
pointerBytes, err := s.db.Get(ctx, []byte(path))
_, pointer, err := s.GetWithBytes(ctx, path)
if err != nil {
if storage.ErrKeyNotFound.Has(err) {
err = storj.ErrObjectNotFound.Wrap(err)
}
return nil, Error.Wrap(err)
}
pointer = &pb.Pointer{}
err = proto.Unmarshal(pointerBytes, pointer)
if err != nil {
return nil, Error.Wrap(err)
return nil, err
}
return pointer, nil
}
// GetWithBytes gets pointer from db
// GetWithBytes gets the protocol buffers encoded and decoded pointer from the DB.
func (s *Service) GetWithBytes(ctx context.Context, path string) (pointerBytes []byte, pointer *pb.Pointer, err error) {
defer mon.Task()(&ctx)(&err)