Matt Gilman created NIFI-8206:
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Summary: 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
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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