What is the scope of route exception handling?

[Vyacheslav Boyko <ma...@gmail.com>]

Hello!

As described into the documentation,
Exception handling may be global and per-route.

And my question is about the latest - per-route exception handling.

from("direct://" + QUEUE_START_ISSUE_CARD)
    .bean(processor, "createRequest")
    .onException(Exception.class).handled(true).useOriginalBody()
        .to("direct:CHECK")
    .end()
    .to(hostCardServiceEndpoint)
    .unmarshal().jaxb();

My route is to send a request to "hostCardServiceEndpoint". This
operation may produce an exceptinon. And my intention is to handle such
exceptions to perform a check operation. 

My question is - where to place "onException" clause? 
I want Camel to catch all other exceptions occurring in this route with
global exception handling strategy.

I guess the following options.

1) before the operation with potential exception?

from("direct://" + QUEUE_START_ISSUE_CARD)
    .bean(processor, "createRequest")
    .onException(Exception.class).handled(true).useOriginalBody()
        .to("direct:CHECK")
    .end()
    .to(hostCardServiceEndpoint)
    .unmarshal().jaxb();

2) after the operation with potential exception?

from("direct://" + QUEUE_START_ISSUE_CARD)
    .bean(processor, "createRequest")
    .to(hostCardServiceEndpoint)
    .onException(Exception.class).handled(true).useOriginalBody()
        .to("direct:CHECK")
    .end()
    .unmarshal().jaxb();

3) right after the route starts?

from("direct://" + QUEUE_START_ISSUE_CARD)
    .onException(Exception.class).handled(true).useOriginalBody()
        .to("direct:CHECK")
    .end()
    .bean(processor, "createRequest")
    .to(hostCardServiceEndpoint)
    .unmarshal().jaxb();

4) should I separate sending message to hostCardServiceEndpoint in
separated route to perform per-route exception handling?

5) Does it really mean in case of my "call" is CXF
(hostCardServiceEndpoint is "cxf://endpoint")?

Many thanks,
Vyacheslav Boyko.
mailto: mail4bvn@gmail.com