BAEL-3353: Asynchronous HTTP Programming with Play Framework (#8349)

* project creation and added ws library * BAEL-3353: pushing code for article * BAEL-3353: changing test names * BAEL-3353: removed unused imports * BAEL-3353: applied review changes and fixed unit test bug * BAEL-3353: added more examples to PR * BAEL-3353: updated test following feedback * BAEL-3353: add new unit test for large data download * BAEL-3353: fixed PR following feedback
2020-02-24 19:12:40 +00:00
parent 9dd52cf1c3
commit 4c5035e645
20 changed files with 529 additions and 0 deletions
--- a/play-framework/async-http/app/controllers/HomeController.java
+++ b/play-framework/async-http/app/controllers/HomeController.java
@@ -0,0 +1,38 @@
+package controllers;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.google.common.collect.ImmutableMap;
+import java.util.Collections;
+import java.util.Map;
+import play.mvc.Controller;
+import play.mvc.Http;
+import play.mvc.Result;
+
+/**
+ * This controller contains an action to handle HTTP requests to the application's home page.
+ */
+public class HomeController extends Controller {
+
+    /**
+     * 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(Http.Request request) throws JsonProcessingException {
+        return ok(printStats(request));
+    }
+
+    private String printStats(Http.Request request) throws JsonProcessingException {
+        Map<String, String[]> stringMap = request.body()
+                                                 .asFormUrlEncoded();
+        Map<String, Object> map = ImmutableMap.of(
+          "Result", "ok",
+          "GetParams", request.queryString(),
+          "PostParams", stringMap == null ? Collections.emptyMap() : stringMap,
+          "Headers", request.getHeaders().toMap()
+        );
+        return new ObjectMapper().writerWithDefaultPrettyPrinter().writeValueAsString(map);
+    }
+}
--- a/play-framework/async-http/app/views/index.scala.html
+++ b/play-framework/async-http/app/views/index.scala.html
@@ -0,0 +1,5 @@
+@()
+
+@main("Welcome to Play") {
+  <h1>Welcome to Play!</h1>
+}
--- a/play-framework/async-http/app/views/main.scala.html
+++ b/play-framework/async-http/app/views/main.scala.html
@@ -0,0 +1,24 @@
+@*
+ * This template is called from the `index` template. This template
+ * handles the rendering of the page header and body tags. It takes
+ * two arguments, a `String` for the title of the page and an `Html`
+ * object to insert into the body of the page.
+ *@
+@(title: String)(content: Html)
+
+<!DOCTYPE html>
+<html lang="en">
+    <head>
+        @* Here's where we render the page title `String`. *@
+        <title>@title</title>
+        <link rel="stylesheet" media="screen" href="@routes.Assets.versioned("stylesheets/main.css")">
+        <link rel="shortcut icon" type="image/png" href="@routes.Assets.versioned("images/favicon.png")">
+    </head>
+    <body>
+        @* And here's where we render the `Html` object containing
+         * the page content. *@
+        @content
+
+        <script src="@routes.Assets.versioned("javascripts/main.js")" type="text/javascript"></script>
+    </body>
+</html>