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https://issues.apache.org/jira/browse/NIFI-8206?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mark Payne reassigned NIFI-8206:
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Assignee: Mark Payne
> Allow PropertyDescriptors to drive what type of input they accept
> -----------------------------------------------------------------
>
> Key: NIFI-8206
> URL: https://issues.apache.org/jira/browse/NIFI-8206
> Project: Apache NiFi
> Issue Type: Improvement
> Components: Core Framework, Extensions, Tools and Build
> Reporter: Matt Gilman
> Assignee: Mark Payne
> Priority: Major
>
> Currently, PropertyDescriptors can be configured with a Validator that
> validates any proposed value. Rather than solely driving what's allowable
> through the Validator which only exists at runtime, it may be beneficial if
> the PropertyDescriptor can describe the type of input they support. For
> instance a file, a list of files, a URL, etc.
> Using these details to populate the extension metadata generated at build
> time would be helpful in use cases where the flow might be authored separate
> from the runtime environment like Stateless NiFi.
> Having these details may even provide an opportunity to update the Processor
> API to support default file exists validators, URL validators, etc. Also, it
> may allow for the Processor API to offer capabilities around loading the
> content from these configured value.
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