CODEWITHSUNDEEP
javaapache-camel
DaveH
DaveH

Reputation: 7335

How to communicate exceptions between routes in Camel

I have a Camel Application which makes a call to a RESTFul service.

I expose a RESTful and a SOAP interface to my clients

Both the RESTful and the SOAP routes end up calling a common route which actually makes the call to the RESTFul service.

So, it s little like

<camel:route>
    <camel:from uri="RESTFUL_INTERFACE" />
    <camel:to uri="direct:CALLEXTERNAL_REST_SERVICE" />
    <camel:to uri="ADAPT_RESPONSE" />
</camel:route>

<camel:route>
    <camel:from uri="SOAP_INTERFACE" />
    <camel:to uri="direct:CALLEXTERNAL_REST_SERVICE" />
    <camel:to uri="ADAPT_RESPONSE" />
</camel:route>

<camel:route>
    <camel:from uri="direct:CALLEXTERNAL_REST_SERVICE" />
    <camel:to uri="EXTERNAL_RESTFUL_SERVICE" />
</camel:route>

If my call to EXTERNAL_REST_SERVICE fails ( Connection refused for example ), then I need to take different actions in my REST and SOAP routes. As far as I can tell, onException applies only to the route it is specifed in.

How do I communicate the failure in direct:CALLEXTERNAL_REST_SERVICE back to the "outer" routes?

Upvotes: 0

Views: 180

Answers (1)

Ramin Arabbagheri
Ramin Arabbagheri

Reputation: 820

You can have an onException for your camel context (this will be applied to all routes within). From there, onException is simply just another route. You can have a CBR, for example, and specify what to do next, based on where the exception occurred.

Upvotes: 1

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