Use WebServiceContext outside WebService

In my Web service, I have:

@WebService(serviceName = "myservice")
public class ServiceName{

    @Resource
    private WebServiceContext context;

In a stateless class I want to use the same operation:

@Stateless
public class MakeHappen{

 @Resource
        private WebServiceContext context;

But I receive an EJB exception. How can I inject this resource, outside webservice?