It really seems the Kamelets' mission
Il lun 8 gen 2024, 15:59 Pasquale Congiusti <pasquale.congiu...@gmail.com>
ha scritto:
> Hi Raymond,
> Can't be a Kamelet considered for such a feature? I think it's one of its
> purposes as well.
>
> Pasquale.
>
> On Mon, Jan 8, 2024 at 3:21 PM ski n <raymondmees...@gmail.com> wrote:
>
> > Question/Discussion:
> >
> > Do you think "functions" in the Camel DSL make sense?
> >
> > Explanation:
> >
> > Say you have to following route:
> >
> > from("direct:a")
> > .setHeader("myHeader", constant("test"))
> > .to("direct:b");
> >
> > And then you have a similar route:
> >
> > from("direct:c")
> > .setHeader("myHeader2", constant("test"))
> > .to("direct:d");
> >
> > As you are setting it more or less the same you could make a
> routeTemplate:
> >
> > routeTemplate("someFunction")
> > // here we define the required input parameters (with a
> default
> > value)
> > .templateParameter("headerName", "myHeader")
> > .from("direct:a")
> > .setHeader("{{headerName}}", constant("test"))
> >
> > And then you can:
> >
> > from("direct:a")
> > .to("direct:someFunction")
> > .to("direct:b");
> >
> > And for the second route:
> >
> > from("direct:c")
> > .to("direct:someFunction")
> > .to("direct:d");
> >
> >
> > This however seems a bit cumbersome, because:
> >
> > 1. I must have a from statement in my subroute (which should be just a
> > function).
> > 2. I need to know the component of the from statement and call it with a
> > "to" statement.
> > 3. I need to create the route from routeTemplates before the route starts
> > and I need to do this everytime I use that 'function'.
> > 4. If I want to use the same code then I need to call the same route
> > multiple times,
> > but in certain cases this can become a bottle-neck (think of Seda of
> JMS
> > Queues).
> > Especially when call it from hundreds of places, this maybe
> troublesome
> > (throughput or memory).
> >
> >
> > Would be easier and more direct to have like this:
> >
> > function("someFunction")
> > .parameter("headerName", "myHeader")
> > .setHeader("{{headerName}}", constant("test"))
> >
> > And then call it:
> >
> > from("direct:a")
> > .function("someFunction")
> > .to("direct:b");
> >
> > And:
> >
> > from("direct:c")
> > .function("someFunction")
> > .parameter("myHeader2")
> > .to("direct:d");
> >
> > On install the routes are exactly the same as the first and second route
> > (only reused).
> >
> > What do think?
> >
> > Raymond
> >
>
