Access a file from any part of the flow.

[#1]

Hi, I'm new to Nifi, and I'm having some problems with the following design. The idea is to take a file and immediately send it to register with the metadata of the file (Ready), but when trying to recover the file in the execute script I can not access it (because it is not consecutive, and not I can get it in the inputStream). Is there any way to obtain it from a session repository to perform the analysis, knowing that this is not consecutive to the file?