exceptionfactory commented on PR #9617: URL: https://github.com/apache/nifi/pull/9617#issuecomment-2581079938
> > Thanks for proposing this change @markobean. > > As the Jira issue does not provide much background, can you describe the general use case in mind for randomized FlowFile sizes? > > From an implementation perspective, it seems like it would be simpler to support using Expression Language in the existing `File Size` property. That would allow for some amount of random size generation if desired, without introducing additional configuration properties. > > Expression Language will not work in this case as GenerateFlowFile does not accept an incoming connection. At best, an environment variable could be referenced, but again, this would be a fixed value. > > This use case is to have FlowFiles of various sizes injected into a flow for further testing. Some flows are specifically designed to handle FlowFiles of certain sizes differently. For example, if files are "large", perhaps they are compressed. This is a trivial example, but the point is this feature supports a greater degree of flexibility of data while testing a flow. Expression Language can be used in absence of an input FlowFile, it would be evaluated as a self-contained expression. EL has a `random()` function that would support this kind of use case. Thanks for the additional background on potential test scenarios. I can appreciate testing files of different sizes. However, if that is the case, it seems like it would be important to have deterministic inputs, versus random inputs. Either way, EL with some logic would actually provide more flexibility for some sort of pseudo-random size-based output files. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
