[jira] [Comment Edited] (NIFI-13329) Fallback to raw viewer when formatted viewer fails

["Matt Gilman (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/NIFI-13329?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17851163#comment-17851163 ] 

Matt Gilman edited comment on NIFI-13329 at 5/31/24 4:55 PM:
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So the error is happening while the data viewer is consuming the stream. Once this fails, subsequent attempts to re-read the stream fail. The stream is either accessing the flowfile from the content repo or consuming an http response in clustered mode. To be able to reread the http response, we'd need to hold the arbitrarily large content and is a bigger effort.

Would it make sense for this case to render an error message stating that the content does not match the mime type? Or there was an error in processing the content in formatted mode? The UI would render correctly and show Formatted mode with the message. The user could then change the mode to Original or Hex to see those views. It addresses the error page your seeing above. And I think this case is more uncommon. Defaulting to Formatted and having to manually change to Original when the content in the flowfile is wrong is less annoying for the user than defaulting to Original and having to manually change to Formatted when the content in the flowfile is correct.

We could consider alternative behaviors in the future as replacement of these data viewers is on the roadmap to continue modernizing the UIs.


was (Author: mcgilman):
So the error is happening while the data viewer is consuming the stream. Once this fails, subsequent attempts to re-read the stream fail. The stream is either accessing the flowfile from the content repo or consuming an http response in clustered mode. To be able to reread the http response, we'd need to hold the arbitrarily large content and is a bigger effort.

Would be make sense for this case to render an error message stating that the content does not match the mime type? Or there was an error in processing the content in formatted mode? The UI would render correctly and show Formatted mode with the message. The user could then change the mode to Original or Hex to see those views. It addresses the error page your seeing above. And I think this case is more uncommon. Defaulting to Formatted and having to manually change to Original when the content in the flowfile is wrong is less annoying for the user than defaulting to Original and having to manually change to Formatted when the content in the flowfile is correct.

We could consider alternative behaviors in the future as replacement of these data viewers is on the roadmap to continue modernizing the UIs.

> Fallback to raw viewer when formatted viewer fails
> --------------------------------------------------
>
>                 Key: NIFI-13329
>                 URL: https://issues.apache.org/jira/browse/NIFI-13329
>             Project: Apache NiFi
>          Issue Type: Bug
>            Reporter: Pierre Villard
>            Priority: Major
>         Attachments: Screenshot 2024-05-30 at 11.19.23.png
>
>
> The formatted viewer (based on the mime.type attribute) recently became the default. In case the MIME type is wrong, this would return an error when opening the flowfile's content. It could be nice to catch the error and fallback to the raw viewer.
> !Screenshot 2024-05-30 at 11.19.23.png|width=611,height=150!



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