title: Camel execution handling based on http response code
body: <p>I am using http4 component and multicasting the msg to multiple routes. Each route is calling a Rest service. Based on http response code I want to handle the exception. I am getting httpOperationFailedException for all 400,500 response code but for 404 case I want to continue the routing and for other cases the execution should stop. How can I achieve this? 
  Thanks. </p>