Take a look at samples/ws_security/ut example in FUSE SF(CXF) kit, which demonstrate how to set UsernameToken ws-security header from JAVA client code.
Thanks for your response.
I think I have figured out how to write an interceptor, but I can't figure out how to incorporate that sample into the servicemix/camel framework. Do I set up the interceptor the same way, using the SpringBusFactory ? Or is there a camel way to do that ?