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From janstey <jans...@gmail.com>
Subject Re: interceptors - something is terrible wrong
Date Mon, 14 Apr 2008 00:44:19 GMT

Hey Claus,

AFAIK you need to add a proceed() at the end of an intercept() route or, as
you described, it swallows the exchange. I found a little bug in the
proceed() method as well... but this patch should fix it up.
http://www.nabble.com/file/p16669908/intercept.patch intercept.patch 

Cheers,
Jon


Claus Ibsen wrote:
> 
> Hi
> 
>  
> 
> Sorry for the title but I needed to get your attention.
> 
>  
> 
> On the wiki: http://activemq.apache.org/camel/dsl.html
> 
> The interceptor sample is a good old logging sample that looks plausible
> and easy to understand. If you add intercept("log:mylogger") then Camel
> would log all the transitions.
> 
>  
> 
> But the terrible part is that the logging example does not work as stated.
> In Camel if the interceptor kicks in it "swallows" the exchange and the
> exchange is not routed further.
> 
>  
> 
> I have added a unit test to the came-core:
> org.apache.camel.issues.InterceptorLogTest that demonstrates the problem.
> 
>  
> 
> If you enable the intercept() codeline the unit test fails.
> 
>  
> 
> What is the fundamental usage for interceptors in Camel?
> 
> The use case from an end user was to log all the steps so he could get an
> idea how the exchanges was actually routed - a great feature in my mind.
> 
>  
> 
>  
> 
> I have created a ticket CAMEL-442 to improve the documentation for
> interceptors. I think the interceptor concept should be on its own page,
> so its easier to find in the current documentation.
> 
>  
> 
>  
> 
>  
> 
>  
> 
> Med venlig hilsen
> 
>  
> 
> Claus Ibsen
> 
> ......................................
> 
> Silverbullet
> 
> Skovsgårdsvænget 21
> 
> 8362 Hørning
> 
> Tlf. +45 2962 7576
> 
> Web: www.silverbullet.dk
> 
>  
> 
> 
> 

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