title: Stopping Camel route when no messages in queue (jms, seda)
body: <p>I have a Camel route that moves messages from a jms queue to another. That route is by default stopped and it is started by a call to a jetty route using controlBus.</p>
  <p>As I need to move the messages on demand, once the source jms queue is empty, I need to disable the &quot;mover&quot; route, so messages that arrive later are not processed until the &quot;mover&quot; route is activated again.</p>
  <p>Is there a way to achieve that?</p>