It does not look like loop takes a predicate, it expects the expression to
be a number, which i think makes it unsuited for this sort of thing.
I would this expect this to be a fairly common case, i am surprised its
this difficult to figure out how to do this
On 4 March 2016 at 16:25, Quinn Stevenson
wrote:
> The “direct:await-import-complete” calling itself makes me a little
> nervous - the call stack could get pretty deep if it has to wait very long.
>
> Could you use the loop DSL (http://camel.apache.org/loop.html <
> http://camel.apache.org/loop.html>)?
>
>
> > On Mar 3, 2016, at 11:44 AM, jelmer wrote:
> >
> > Since no one answered I came up with this :
> >
> >from("file:/Users/jkuperus/foo")
> > .process(ToMultiPartRequestProcessor)
> > .setHeader(Exchange.HTTP_METHOD, constant(HttpMethods.POST))
> > .setHeader(Exchange.CONTENT_TYPE, constant("multipart/form-data"))
> > .setHeader(Exchange.HTTP_PATH, constant("/api/tasks"))
> > .to("http4://localhost:11380")
> > .transform().header("Content-Location")
> > .to("direct:await-import-complete")
> >
> >
> >from("direct:await-import-complete")
> > .setHeader(Exchange.HTTP_METHOD, constant(HttpMethods.GET))
> > .setHeader(Exchange.HTTP_PATH, body().convertToString())
> > .to("http4://localhost:11380")
> > .transform(body().convertToString())
> > .choice()
> >.when().jsonpath("[?(@.state == 'completed')]")
> > .transform().jsonpath("@.campaignId")
> > .to("direct:do-stuff")
> > .otherwise()
> > .log("Task was not yet completed retrying in 2 seconds")
> > .delay(2000)
> > .transform().header(Exchange.HTTP_PATH)
> > .to("direct:await-import-complete")
> >
> >
> > Does this make any sense ?
> >
> > On 2 March 2016 at 21:27, jelmer wrote:
> >
> >> Hi as part of a camel route i upload a file to a REST service, the
> service
> >> will return status 202 and a Content-Location header that points to a
> json
> >> resource with a status field
> >> i want to wait for the status of this resource to change to completed,
> and
> >> only then continue. so i need some sort of polling
> >> But i don't see an obvious way to do this in camel
> >> can anyone offer any suggestions?
> >>
>
>
