Nifi Listfile - Exclude Directories

[#1]

How can I setup the list file processor so that it excludes certain folders? For example if we have the following director

/root/A

/root/B

/root/C

/root/D

How can i exclude folders C and B in the path filter?

Thanks,

Ahmad

[#2]

Listfile has the option to define a File Filter and a Path Filter. From your explanation I would expect that you need to define the Path Filter.

In the Path Filter you can place a regular expression (in Java syntax).

For regex there are a lot of resources available, I think something like this should do the trick:

(?!(B|C)).*