Matthew,

What was your second case trying to use ${now():toNumber()} ? My unit
test evaluated the expression into an integer and it worked (versus
putting the expression in quotes which would make it a string).

Regards,
Matt

On Tue, Aug 15, 2023 at 4:09 AM Matthew Hawkins <hawko2...@gmail.com> wrote:
>
> Hi Matt,
>
> The tag will be ${firstname}, the spec is correct.
> (well, I also get lastname, but it's unimportant)
>
> Weird thing is this failed similarly with a file based input on the Record
> based jolt processor as well on a completely different system.
>
> Both Linux (Ubuntu 22.04), both OpenJDK 17, both recompiled nifi from
> source with include-graph,include-media,include-rules,include-sql-reporting
>
> In the second case I was trying to get ${now():toNumber()} into a json
> record using either default or modify-overwrite-beta (tried both). The
> following success processor failed on reading schema as the literal
> ${now...} was a string not a long and the JVM refused the type cast. If I
> insert the transform directly then it still fails with a type cast problem
> from generic Object :/ (that was midnight last night, and I tossed my hands
> in the air and turned the server off)
>
> I'm pulling mqtt and opc-ua off a raspberry pi and dumping it into
> postgresql. Trying to be a good nifi citizen and use record based
> processing where possible. Since I don't run Hadoop at home, it's all
> manual schemas and using postgres as the perm data store. I'm using json as
> mqtt does it intrinsically and I can jolt transform other data into json
> form and then store it easily in postgres. Well, that was the idea 😁
>
> Kr,
>
> On Sun, 13 Aug 2023, 10:44 Matt Burgess, <mattyb...@gmail.com> wrote:
>
> > Just to follow up, I added a unit test to put EL in a JOLT spec and it
> > worked. I noticed you referred to "attrname" in your post but your
> > spec refers to "firstname", is that a typo?
> >
> > Regards,
> > Matt
> >
> > On Thu, Aug 10, 2023 at 3:03 PM Matt Burgess <mattyb...@apache.org> wrote:
> > >
> > > I added file support to JoltTransformJSON under NIFI-4957 [1], a first
> > > glance at the code seems like it should work, but I'll try to
> > > reproduce it and follow up, thanks for bringing this to our attention!
> > >
> > > Regards,
> > > Matt
> > >
> > > [1] https://issues.apache.org/jira/browse/NIFI-4957
> > >
> > > On Thu, Aug 10, 2023 at 6:53 AM Matthew Hawkins <hawko2...@gmail.com>
> > wrote:
> > > >
> > > > Hi devs,
> > > >
> > > > Using 1.23.0 I have a simple transform adding some flowfile attributes
> > into
> > > > the content.
> > > > When putting the spec directly to the processor it works fine. If I
> > have
> > > > the spec in an external file however it seems to put in the literal
> > string
> > > > ${attrname} - ie the EL didn't process.
> > > >
> > > > Have I done something incorrectly or should I be now asking for an
> > account
> > > > to log a bug?
> > > >
> > > > Sample spec run using Chain DSL:
> > > >
> > > > [{
> > > >   "operation": "shift",
> > > >   "spec": {
> > > >     "@": "values"
> > > >   },
> > > >   {
> > > >     "operation": "default",
> > > >     "spec": {
> > > >       "firstname": "${firstname}"
> > > >     }
> > > >   }
> > > > ]
> > > >
> > > > Kind regards,
> > > > Matthew
> >

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