I have a use case where I'm being given a subset of attributes with a specific prefix. (ie. Platform.Horton.Datalake~) Right before writing my flowfile, I need to add these specific attributes to the end of my flowfile. I would like to know if there is any processor that does a REGEX to find all my matched attributes and then something like AttributestoJSON and then a ReplaceText, but I can't figure out how to find the right attributes in the first place. I'm pretty new to nifi, so if my question doesn't make sense, I'm happy to try and clarify.
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