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nifi expression embedded attribute in join

nifi expression embedded attribute in join

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Hello, I am trying to get this expression to work, and having a little trouble:

${sourcefilename:toLower():replaceAll(' ','_'):replaceAll('.xlsx',${allDelineatedValues("_",${sheetname},".csv"):join('')})}

Can anyone spot the error offhand, the error log doesn't give me a specific point of failure.

Thank you.

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Re: nifi expression embedded attribute in join

@c sol

Why don't you try building up the expression in parts instead of all at once as a debug process? Make sure you are getting what you expect out of each part.