Java EE 8 Cookbook

How to do it...

1. First, we create a class that will be our server:

public class ServerMock {    public static final URI CONTEXT =     URI.create("http://localhost:8080/");    public static final String BASE_PATH = "ssevents";    public static void main(String[] args) {        try {            final ResourceConfig resourceConfig = new             ResourceConfig(SseResource.class);            final HttpServer server =             GrizzlyHttpServerFactory.createHttpServer(CONTEXT,             resourceConfig, false);            server.start();            System.out.println(String.format("Mock Server started            at %s%s", CONTEXT, BASE_PATH));            Thread.currentThread().join();        } catch (IOException | InterruptedException ex) {            System.out.println(ex.getMessage());        }    }}

2. Then, we create a JAX-RS endpoint to send the events to the clients:

@Path(ServerMock.BASE_PATH) ...