I'm volunteering to write if the help is wanted, however, I don't have
the bandwidth to become much more deeply involved though perhaps, as
time went on, I would.
However, I can help. Meanwhile, I'm digging writing NiFi processors very
much.
Russ
On 04/19/2016 09:24 AM, dan bress wrote:
Russell,
I agree the syntax for multiple DynamicProperties is a little awkward,
and that our documentation could be improved in this situation(I didn't see
reference to @DynamicProperty in the developer doc).
Also Java8 supports the concept of repeatable annotations[1], which
would erase the need for the @DynamicProperties by allowing you to specify
multiple @DynamicProperty annotations on a single class. Since NiFi
appears to be running on Java8, I think we should create a ticket to update
the documentation generation code to handle repeated annotations, and
update our processors/controller services/reporting tasks to use them. We
should also create a ticket to update the developer documentation to
describe the annotations usage.
[1] http://docs.oracle.com/javase/tutorial/java/annotations/repeating.html
Dan
On Tue, Apr 19, 2016 at 7:23 AM Russell Bateman <
[email protected]> wrote:
Thanks, Joe. This worked.
You know, I'm just the sort of guy that would add stuff like that to the
documentation if the way were smoothed to it. The problem as I see it
with NiFi doc is that it's really good the way it is and if we add
more--and we should--it's going to get longer and harder to read.
Someone should slightly redesign it with links to subordinate documents
to avoid making it too complicated yet give folk a place to go for
deeper help. I would be happy to help out once such a thing as that is
decided.
Russ
On 04/15/2016 06:39 PM, Joe Percivall wrote:
Hello Russell,
The annotation you are looking for is @DynamicProperties[1] an example
of it in use is in the PutFTP processor[2].
[1]
https://github.com/apache/nifi/blob/e4b7e47836edf47042973e604005058c28eed23b/nifi-api/src/main/java/org/apache/nifi/annotation/behavior/DynamicProperties.java
[2]
https://github.com/apache/nifi/blob/e4b7e47836edf47042973e604005058c28eed23b/nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/PutFTP.java#L50
Hope that helps,
Joe
- - - - - -
Joseph Percivall
linkedin.com/in/Percivall
e: [email protected]
On Friday, April 15, 2016 7:46 PM, Russell Bateman <
[email protected]> wrote:
What's the syntax for defining more than one dynamic property for a
processor? I need to specify up to three distinctly different ones and
attempting to do it all in
@DynamicProperty(
name = "{blah,blah2,blah3}",
value = "{\"blah-value\",\"blah2-value\",\"blah3-value\"}",
supportsExpressionLanguage = false,
description = "Big blah, blah, blah..."
)
is under-powered.
Many thanks.
