code: private void createDataFile() throws IOException {
          // temporary data file for storage of stream data
          Path path = Paths.get(filePath + ".ser");
          if (Files.deleteIfExists(path)) {
              log.debug("Previous flv data file existed and was removed");
          }
          this.dataChannel = Files.newByteChannel(path, StandardOpenOption.CREATE_NEW, StandardOpenOption.WRITE, StandardOpenOption.READ);
      }
docs: Create the stream data file.
  
  @throws IOException