from(directoryPath + "?recursive=true)
    .routeId("Test")
    .process(testProcessor)
    .recipientList(simple("${header.nameOfMyDestination}")

camelContext.getRouteDefinition("Test")
    .adviceWith(camelContext, new AdviceWithRouteBuilder() {
     @Override
        public void configure() throws Exception {
            replaceFromWith("file://" + sourceDirectory + "?recursive=true");
            weaveByToString("RecipientList*")
               .recipientList(simple("mock" + "${header.nameOfMyDestination}"));
 }