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NIFI-13557 Corrected regular expression for short months in order to allow for single digit months. #9094

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@dan-s1 dan-s1 commented Jul 19, 2024

Summary

NIFI-13557
This fix corrects any 'Date Format' , 'Time Format' and 'Timestamp Format' (used in various record readers) to allow for reading single digit months. Before this fix whether a user specified MM or M only double digit months could be read. That logic was incorrect as the underlying code uses java.time.format.DateTimeFormatter and per the DateTimeFormatter javadoc specifying single digit month M should support both single and double digits.

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Thanks @dan-s1, looks good! +1 merging

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dan-s1 commented Jul 22, 2024

@exceptionfactory Thank you for merging this and #9096. Can this and #9096 also be included in the 1.x branch? Please let me know if I should submit separate PRs. Thanks!

exceptionfactory pushed a commit that referenced this pull request Jul 22, 2024
This closes #9094

(cherry picked from commit 059a3b7)

Signed-off-by: David Handermann <exceptionfactory@apache.org>
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@dan-s1 I backported this change to the support branch. However, #9096 should not be backported because the change to use DateTimeFormatter is only on the main branch for NiFi 2.0.

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dan-s1 commented Jul 22, 2024

@exceptionfactory Thank you for merging this to 1.x! Also thanks for pointing out about DateTimeFormatter. I had not realized it was only in 2.x.

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