Merge branch 'master' into bael-16656

ratpack/src/main/java/com/baeldung/rxjava/RatpackObserveApp.java

@@ -0,0 +1,44 @@
+package com.baeldung.rxjava;
+
+import java.util.List;
+
+import com.baeldung.model.Movie;
+import com.baeldung.rxjava.service.MoviePromiseService;
+import com.baeldung.rxjava.service.impl.MoviePromiseServiceImpl;
+
+import ratpack.exec.Promise;
+import ratpack.handling.Handler;
+import ratpack.jackson.Jackson;
+import ratpack.rx.RxRatpack;
+import ratpack.server.RatpackServer;
+
+public class RatpackObserveApp {
+    /**
+     * Try hitting http://localhost:5050/movies or http://localhost:5050/movie to see the application in action.
+     * 
+     * @param args
+     * @throws Exception
+     */
+    public static void main(String[] args) throws Exception {
+        RxRatpack.initialize();
+
+        Handler moviePromiseHandler = ctx -> {
+            MoviePromiseService promiseSvc = ctx.get(MoviePromiseService.class);
+            Promise<Movie> moviePromise = promiseSvc.getMovie();
+            RxRatpack.observe(moviePromise)
+                .subscribe(movie -> ctx.render(Jackson.json(movie)));
+        };
+
+        Handler moviesPromiseHandler = ctx -> {
+            MoviePromiseService promiseSvc = ctx.get(MoviePromiseService.class);
+            Promise<List<Movie>> moviePromises = promiseSvc.getMovies();
+            RxRatpack.observeEach(moviePromises)
+                .toList()
+                .subscribe(movie -> ctx.render(Jackson.json(movie)));
+        };
+
+        RatpackServer.start(def -> def.registryOf(regSpec -> regSpec.add(MoviePromiseService.class, new MoviePromiseServiceImpl()))
+            .handlers(chain -> chain.get("movie", moviePromiseHandler)
+                .get("movies", moviesPromiseHandler)));
+    }
+}