JAVA-14175 Rename play-framework to play-modules (#12705)

web-modules/play-modules/introduction/app/controllers/HomeController.java

@@ -0,0 +1,68 @@
+package controllers;
+
+import play.libs.concurrent.HttpExecutionContext;
+import play.mvc.*;
+import play.twirl.api.Html;
+
+import javax.inject.Inject;
+import java.util.concurrent.CompletionStage;
+
+import static java.util.concurrent.CompletableFuture.supplyAsync;
+
+/**
+ * This controller contains an action to handle HTTP requests
+ * to the application's home page.
+ */
+public class HomeController extends Controller {
+    private HttpExecutionContext ec;
+
+    @Inject
+    public HomeController(HttpExecutionContext ec) {
+        this.ec = ec;
+    }
+
+    /**
+     * An action that renders an HTML page with a welcome message.
+     * The configuration in the <code>routes</code> file means that
+     * this method will be called when the application receives a
+     * <code>GET</code> request with a path of <code>/</code>.
+     */
+    public Result index() {
+        return ok(views.html.index.render());
+    }
+
+    public Result applyHtml() {
+        return ok(Html.apply("<h1>This text will appear as a heading 1</h1>"));
+    }
+
+    public Result badRequestPage() {
+        return badRequest("Your request data has issues.");
+    }
+
+    public Result notFoundPage() {
+        return notFound("Could not find the page you requested.");
+    }
+
+    public Result customContentType() {
+        return ok("This is some text content").as("text/html");
+    }
+
+    public CompletionStage<Result> asyncOperation() {
+        return supplyAsync(() -> {
+            return longRunningTask();
+        }, ec.current())
+                .thenApplyAsync(s -> {
+                    return ok("Got result -> " + s);
+                }, ec.current());
+    }
+
+    private String longRunningTask() {
+        return "Long running task has completed";
+    }
+
+    public Result setHeaders() {
+        return ok("This is some text content")
+                .as("text/html")
+                .withHeader("Header-Key", "Some value");
+    }
+}