HttpActor for handling requests and routing them to the actors encapsulating the trading engines

Main2.java

private static class HttpActor extends AbstractActor {

    private static final HttpProtocol HTTP_1_1 = HttpProtocols.HTTP$div1$u002E1();

    public HttpActor() {
        final Router router = partitionAndCreateRouter();
        
        receive(ReceiveBuilder
            .match(HttpRequest.class, r -> {
                int id = Constants.ID.getAndIncrement();
                String path = String.valueOf(r.uri().path());
                if("/sell".equals(path)){
                    String productId = r.uri().query().get("productId").get();
                    ...
                    SalesOrder so = new SalesOrder(price, productId, quantity, id);
                    so.setSeller(new Seller(who));
                    router.route(so, self());
                    replyOK(id);
                }else if("/buy".equals(path)){
                    ...
                }else{
                    handleUnexpected(r);
                }
            }).match(Tcp.Connected.class, r ->{
                sender().tell(new Http.Register(self(), Http.EmptyFastPath$.MODULE$), self()); //tell that connection will be handled here!
            }).build());
    }