[Camel-users] Make decision on whether header key exists in XML DSL

On Wed, Feb 19, 2014 at 6:44 PM, simholte wrote:
I'm having some problems getting this to work right, I'm hoping this is an
easy question.

The behavior I want is to check if the header contains a key, then do
something if that header key doesn't exist. I've tried several ways to
accomplish this, my current route that *doesn't accomplish my goal* is
below.

<route>
<from uri="direct:input" />
<choice>
<when>
<simple><notcontins>
${header.workflowId}
</notcontins>
</simple>
<to uri="bean:com.acme.activator.ExampleProcessor"/>
</when>
</choice>
</route>

I'm new to Camel so any help would be greatly appreciated.

Thanks,
Shawn



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On Wed, Feb 19, 2014 at 10:18 PM, simholte wrote:
Thanks for the quick response!

That works great, but I'm trying to make a decision on the absence of that
key. I've added an otherwise block to make my solution work but I'm
wondering if there's a better solution using a not or something?

my new route:
<route>
<from uri="direct:input" />
<choice>
<when>
<header>workflowId</header>
</when>
<otherwise>
<to uri="bean:com.acme.activator.ExampleProcessor"/>
</otherwise>
</choice>
</route>



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