Github user JPercivall commented on the issue:
https://github.com/apache/nifi/pull/483
Hey @trixpan, I just finished checking out your latest commit. I was having
trouble wording the how to properly make the onTrigger and data methods work in
sync, so I did some reworking and created a patch that'll apply on top of your
commit. It has the bi-directional sync of the onTrigger and data methods as
well as moving the reading of the stream to the onTrigger. I ran it using your
template along with the ExtractEmailHeaders and ExtractEmailAttachments and it
seem to all work smoothly. Check it out and let me know what you think.
I feel bad just giving you a patch of my work and not properly explaining
what to do, so if there is any thing you want me explain please do not hesitate
to ask.
[0001-NIFI-1899-reworking-bi-directional-Email-processing-.txt](https://github.com/apache/nifi/files/367578/0001-NIFI-1899-reworking-bi-directional-Email-processing-.txt)
Github wouldn't let me attach a ".patch" file so just rename the extension.
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