protected void customizeLoadBalancerCommandBuilder(final S request, final IClientConfig config,
			final LoadBalancerCommand.Builder<T> builder) {
		// do nothing by default, give a chance to its derived class to customize the builder
	}
This method should be used when the caller wants to dispatch the request to a server chosen by
the load balancer, instead of specifying the server in the request's URI. 
It calculates the final URI by calling {@link #reconstructURIWithServer(com.netflix.loadbalancer.Server, java.net.URI)}
and then calls {@link #executeWithLoadBalancer(ClientRequest, com.netflix.client.config.IClientConfig)}.

@param request request to be dispatched to a server chosen by the load balancer. The URI can be a partial
URI which does not contain the host name or the protocol.
ribbon-loadbalancer/src/main/java/com/netflix/client/AbstractLoadBalancerAwareClient.java