service routing based on message header

[Christopher Cheng]

Could somebody give me an example how to use a single endpoint to route to
different implementors based on message header?

For instance, I have these endpoints with different address

<jaxws:endpoint
            name="{http://www.mycompany.com}Service1PortType";
            address="/websvc/soap/Service1"
            implementor="#service1PortType"
            wsdlLocation="classpath:com/mycompany/wsdl/Service1RQ.wsdl"
            />

<jaxws:endpoint
            name="{http://www.mycompany.com}Service2PortType";
            address="/websvc/soap/Service2"
            implementor="#service2PortType"
            wsdlLocation="classpath:com/mycompany/wsdl/Service2RQ.wsdl"
            />

I would like both of them to use the same address such as "/websvc/soap".
I've read "http://cxf.apache.org/docs/service-routing.html";, it says that I
have to use an interceptor with a dummy service to do that, but I am not
able to find an example to configure in cxf.xml