dylanpiergies commented on code in PR #9592:
URL: https://github.com/apache/camel/pull/9592#discussion_r1143978501
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components/camel-azure/camel-azure-servicebus/src/main/java/org/apache/camel/component/azure/servicebus/ServiceBusConsumer.java:
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@@ -145,6 +145,9 @@ private void onEventListener(final
ServiceBusReceivedMessage message) {
// use default consumer callback
AsyncCallback cb = defaultConsumerCallback(exchange, true);
getAsyncProcessor().process(exchange, cb);
+ if (exchange.getException() != null) {
Review Comment:
There is, but it requires the `ServiceBusReceivedMessage` to be in scope and
it returns a `Mono<Void>` to which we need to subscribe in order for it to
execute. The way things are right now, an invocation to
`ServiceBusReceiverAsyncClientWrapper#complete` or
`ServiceBusReceiverAsyncClientWrapper#abandon` would return a `Mono<Void>` on
which we'd then have to invoke `block()`.
I've looked into this problem in some depth, and I'm still looking for the
"right" approach to addressing this. I kinda feel like using the async client
isn't a very good fit, because we're then dealing with a component that is
reactive from the outset and I don't think there's any framework within Camel
for handling this in a clean and intuitive way (although correct me if I'm
wrong).
I understand your point about the result not being valid until the callback
completes, but while I was step debugging I did find that callback was always
being executed before `getAsyncProcessor().process(exchange, cb);` returned.
This probably isn't great either, because `onEventListener` is the processor
for a `Flux` subscription which I believe places it within a reactive context
and it therefore shouldn't block.
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