Yes, that's they way to do it.
I think your problem using send is due to the fact that you have to
check the exchange status when you receive an exchange.
If you send (not sendSync) an InOnly exchange, you will receive the
same exchange with a DONE status.
Try something like
public void onMessageExhcange(MessageExchange exchange) {
if (exchange.getStatus() == ExchangeStatus.DONE) {
return;
} else if (exchange.getStatus() == ExchangeStatus.ERROR) {
return;
}
...
}
Cheers,
Guillaume Nodet
On 3/21/06, Jason Vinson <[EMAIL PROTECTED]> wrote:
> I found a way to do this that i think is correct. The following is
> what i came up with (parts borrowed from ScriptComponent):
>
> public void onMessageExchange(MessageExchange exchange)
> throws MessagingException {
> NormalizedMessage in = exchange.getMessage("in");
> Object payload = getBody(in);
>
> // do something with it...
> processPayload(payload);
>
> if (isInAndOut(exchange)) {
> NormalizedMessage out = exchange.createMessage();
> exchange.setMessage(out, "out");
> } else {
> InOnly outExchange =
> getExchangeFactory().createInOnlyExchange();
> NormalizedMessage out = outExchange.createMessage();
> setBody(out, payload);
> outExchange.setInMessage(out);
> getDeliveryChannel().sendSync(outExchange);
> }
> done(exchange);
> }
>
> I see that this seems to work fine, but I'd like to know if this is
> correct. One thing that bothers me is that i have to do "sendSync"
> but I think i want to just send. When I do that i get the following:
>
> SEVERE: [EMAIL PROTECTED] Gor error
> processing [EMAIL PROTECTED]
> javax.jbi.messaging.MessagingException: illegal call to send
>
> Thanks,
> Jason
>
> On Mar 20, 2006, at 10:37 AM, Jason Vinson wrote:
>
> > Hi,
> >
> > I'm very new to servicemix, but I have a question about what is the
> > best approach to start writing "service engines" to use in a
> > servicemix esb. My first thought is to write a class that extends
> > PojoSupport and implements MessageExchangeListener, but I wanted to
> > find out from the experts if this is the desired implementation.
> >
> > I've also been drawn towards the TransformComponentSupport class,
> > which I suppose could be used to plug in a service as well, but the
> > name implies that it's to be used for transformation, not service
> > execution. Could I get some info regarding this, or at least
> > pointers to a clear tutorial on this concept?
> >
> > Thanks so much,
> > Jason
>
>
>
