2 Replies Latest reply on Jan 29, 2009 4:35 AM by airber

Dynamic Routing decision in dependence of message-body content (Camel)

airber Jan 28, 2009 9:38 AM

Hello at all,

Following Problem:

I have different messages coming in my queue. In dependence on the body-content in these messages I want to route the message to different endpoints.

For example if a string like "PFS" stands in the first row of the body, the endpoint should be "activemq:pfs" or if there stands "PRL" the endpoint should be "activemq:prl". This should be parsed by a regex in a bean.

The documentation only show examples for true-false-decisions (http://camel.apache.org/bean-language.html) and not how to handle with custom return values.

But what I want is to dynamical route the message directly in the bean method...

In next step the endpoint self should be dynamicaly created in dependence of the incoming body.

Thanks a lot

airber

1. Re: Dynamic Routing decision in dependence of message-body content (Camel)

janstey Jan 28, 2009 1:58 PM (in response to airber)

You can do this easily with the RecipientList annotation. For example,

public class MyRouterBean {
    @RecipientList
    public String route(String body) {
        String queueName = ... // do your reg ex check on the body here
        return "activemq:" + queueName;
    }
}

public class MyRouteBuilder extends RouteBuilder {
    protected void configure() {
        // assuming MyRouterBean is registered as a Spring bean or via JNDI as myRouterBean
        from("direct:startOfRoute").beanRef("myRouterBean", "route");
    }
}

Also the queues are created dynamically so your next requirement is good too.

Cheers,

Jon

2. Re: Dynamic Routing decision in dependence of message-body content (Camel)

airber Jan 29, 2009 4:35 AM (in response to airber)

It works fine.

Thanks a lot
airber
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