Thanks Bryan. That helps.
We were also thinking of exposing standard formatting functions as an API
that other data flows can call and use.


On Tue, Mar 13, 2018 at 1:13 PM, Bryan Bende <> wrote:

> Anil,
> It sounds like what you are interested in would be some combination of
> the referenceable process groups [1] or worm-hole connections [2],
> which were ideas that were discussed, but haven't been implemented.
> You might be able to make your situation slightly better by using the
> NiFi Registry instead of templates...
> As an example, you could design a stand-alone process group for your
> retry logic and place it under version control in the registry. Then
> you import this flow from the registry into various points of your
> overall flow.
> You could then go back to the original standalone process group and
> make a change to the logic and save version 2 to the registry. At this
> point all the other places you imported it to will show an upgrade and
> you can change their version to v2 to bring in the change.
> It still requires manual upgrading of all the versioned process
> groups, but at least they are all tied back to the same version, where
> as templates are not linked to anything once they instantiated.
> -Bryan
> [1]
> Reference-able+Process+Groups
> [2]
> On Tue, Mar 13, 2018 at 10:48 AM, Anil Rai <> wrote:
> > Team,
> >
> > My question is around re-use.
> > Templates : We are creating flows for different use cases. Most of them
> have
> > a requirement for retry. Say the API call fails, we would like to retry 3
> > time after certain interval before giving up. We have created a retry
> > template that works perfect.
> > Q: If I have to use this template, then i have to import this template in
> > all the use case flows. If we have a change to this template, then i
> would
> > be forced to go to every flow that uses this template and make that
> change.
> > Date, String, Number formatting : I have seen couple of ways of doing
> this
> > formatting. Like in UpdateAttribute, Jolt transformation, ExecuteScript.
> > Q: Like in Java, can we have this utility in one place that can be used
> by
> > all my flows at run time by passing the required Parameters?
> >
> > Thanks
> > Anil
> >
> >

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