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Is there any way to use MergeContent processor without a fragment.identifier?

Is there any way to use MergeContent processor without a fragment.identifier?

Explorer

Hi Guys!

I have multiple flowfiles that comming from different "parents". So what I am asking you if there is a way to MergeContent from a number of files not defined but to make sure that all flowfiles were merged.

My schema:

ListFiles  -> list all files in a folder
ExecuteScript -> to change the content to filename
MergeContent -> to put all filenames in same flowfile

It is between ExecuteScript and MergeContent that I need to do someth to ensure that all flowfiles are merged. I already tryied to use Split's processors but the fragment.identifier of each will be always different.

Thanks you so much in advance!

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