How can I access the "routeId" in Apache Camel 2.10?
I see that the property exists from camel 2.11.
From Simple Expression Langauge docs
${routeId}
String
Camel 2.11: Returns the id of the current route the Exchange is being routed.
Is there another easy hack available?
No, you would need to do a little piece of code to get the route id. You can check the source code of Camel 2.11 onwards to see how Camel does it in that function.