Exemple #1
0
// Get implements the apb.FileDataServiceServer interface.
func (s *FileDataService) Get(req *apb.FilesRequest, srv apb.FileDataService_GetServer) error {
	for _, info := range req.Files {
		if info.Path == "" && info.Digest == "" {
			return errors.New("file request missing both path and digest")
		}
	}
	for _, info := range req.Files {
		s.mu.RLock()
		found := false
		for _, f := range s.fetchers {
			data, err := f.Fetch(info.Path, info.Digest)
			if err == nil {
				if err := srv.Send(&apb.FileData{
					Content: data,
					Info:    info,
				}); err != nil {
					s.mu.RUnlock()
					return err
				}
				found = true
				break
			}
		}
		s.mu.RUnlock()

		// If we did not find anything, report the file as missing.
		if !found {
			if err := srv.Send(&apb.FileData{
				Info:    info,
				Missing: true,
			}); err != nil {
				return err
			}
		}
	}
	return nil
}
Exemple #2
0
// Get implements the apb.FileDataServiceServer interface.
func (s *FileDataService) Get(srv apb.FileDataService_GetServer) error {
	var foundFile, receivedRequest bool
	for {
		info, err := srv.Recv()
		if err == io.EOF {
			if !receivedRequest {
				return errors.New("no FileData request given")
			} else if !foundFile {
				return errors.New("none of the requested files found")
			}
			break
		} else if err != nil {
			return err
		}
		receivedRequest = true

		s.mu.RLock()
		for _, f := range s.fetchers {
			data, err := f.Fetch(info.Path, info.Digest)
			if err == nil {
				if err := srv.Send(&apb.FileData{
					Info:    info,
					Content: data,
				}); err != nil {
					s.mu.RUnlock()
					return err
				}
				foundFile = true
				break
			}
		}
		// we didn't find the file; don't send anything
		s.mu.RUnlock()
	}
	return nil
}