WebSocket server for SAP NetWeaver AS Java

Hello

I'm working on a way to communicate with SAP NetWeaver AS Java (not the ABAP stack, but AS Java only). As I don't want to use a lot of AJAX requests for polling data, the WebSocket implementation in SAPUI5 should be able to do the trick for me.

However, I'm wondering on how to implement a WebSocket server component for SAP AS Java. Do I have to develop a Java servlet? Is it a JSP page? Or do I have to deplay and use a Java Bean?

Is there some sample code available?

Thanks a lot

Tobias