private LoadBalancer.Node getRecipient(RoutingContext context) {
        List<Mirror.Entry> lastLookup = lookup(context, pattern);
        return loadBalancer.getRecipient(lastLookup);
    }
Finds the TCP address of the target.

       @return Returns a hop representing the TCP address of the target, or null if none could be found.
documentapi/src/main/java/com/yahoo/documentapi/messagebus/protocol/LoadBalancerPolicy.java