Hi
On Mon, Mar 30, 2009 at 4:33 PM, Peter Maas <pfmm...@gmail.com> wrote:
> Hi,
>
> according to the documentation of the HTTP component it should be possible
> to retrieve the response code if the call fails. I fail to grasp how to
> exactly use this. I wanted to use the enrich pattern to call an external
> http based service to enrich the current message:
>
> from("file:src/data")
> .setHeader("id",
> vpro.xpath("//vpro:schedule/@channel", String.class))
> .enrich("direct:couchdb", new AggregationStrategy(){
> public Exchange aggregate(Exchange original,
> Exchange resource) {
> Message responseOut =
> resource.getOut();
> int responseCode =
> responseOut.getHeader(HttpConstants.HTTP_RESPONSE_CODE, Integer.class);
> System.out.println(responseCode + " "
> + responseOut.getBody(String.class));
> return original;
> }
> }
> )
> .to("...")
>
>
> and in the resource route:
>
> from("direct:couchdb")
> .setBody(constant(""))
> .setHeader("CamelHttpMethod", constant("GET"))
> .setHeader(HttpConstants.HTTP_URI,
> constant(LOCAL_DB).append(header("id")))
> .to("http://couchdb";);
>
> The executed HTTP GET arrives at the server as I expected, since it doesn't
> know the resource it returns a 404. The 404 is thrown as a
> HttpOperationFailedException which triggers a retry...
>
> I'm probably missing something vital, but would really like a push in the
> right direction here!
Ah since you use a sub route before doing the actual HTTP invocation
you should disable the error handler to avoid it doing a retry
from("direct:crouchdb").errorHandler(noErrorHandler())....
In fact you can configure it as a global to avoid the default error
handler all together.
Its up for debate in Camel 2.0 how the defaults for error handling should be.
We will later start a separate thread for this as a open discussion.
But we would definitly value the community feedback on this one.
>
> thanks in advance,
>
> Peter
--
Claus Ibsen
Apache Camel Committer
Open Source Integration: http://fusesource.com
Blog: http://davsclaus.blogspot.com/
Twitter: http://twitter.com/davsclaus
