Implement a test get-request and a java Program.

.vscode/settings.json

+{
+    "python.formatting.provider": "autopep8"
+}
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ShellTest.java

+public class ShellTest {
+
+    public static int fibonacci(int fib) {
+        if (fib <= 1) {
+            return fib;
+        }
+        int a = fibonacci(fib - 1);
+        int b = fibonacci(fib - 2);
+        return a + b;
+    }
+
+    public static void main(String[] argv) {
+        if (argv.length != 1) {
+            System.out.println("Die Uebergabeparameter sind nich korrekt");
+            System.exit(1);
+        }
+
+        int fib = Integer.parseInt(argv[0]);
+        System.out.println(fibonacci(fib));
+    }
+}
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fpga_interface/interface/static/interface/script.js

@@ -250,10 +250,31 @@ function clickStart() {
     button.addEventListener("click", stopInterval);
 }
 
+function testShell() {
+    let param = parseInt(document.querySelector("#ip_numpopulations").value);
+
+    const fetchOption = {
+        method: "GET",
+        credentials: "same-origin",
+        headers: {
+            "Content_Type": "application/text"
+        },
+    }
+    fetch("/interface/test_calc/?num=" + param, fetchOption)
+        .then(res => {
+            if (res.ok) {
+                console.log(res.text());
+            } else {
+                console.log("False");
+            }
+        })
+}
+
 // start after loading the page
 document.addEventListener("DOMContentLoaded", async function () {
 
-    document.querySelector("#start").addEventListener("click", clickStart);
+    // document.querySelector("#start").addEventListener("click", clickStart);
+    document.querySelector('#start').addEventListener("click", testShell);
     document.querySelector("#bt_console").addEventListener("click", toggleConsole);
     document.querySelector("#bt_save_profile").addEventListener("click", saveProfile);
     document.querySelector("#bt_load_profile").addEventListener("click", loadProfile);

fpga_interface/interface/urls.py

@@ -5,5 +5,6 @@ app_name = 'interface'
 urlpatterns = [
     path('', views.base_view, name='base'),
     path('logout/', views.logout_view, name='logout'),
-    path('change_password/', views.change_password, name='changepw')
+    path('change_password/', views.change_password, name='changepw'),
+    path('test_calc/', views.calculate_fibonacci, name='calc'),
 ]

fpga_interface/interface/views.py

 import json
 import math
 
-#from django.http import HttpResponse
+from django.http import HttpResponse
 from django.shortcuts import render, redirect
 #from django.template import loader
 from django.contrib.auth.decorators import login_required
@@ -11,6 +11,7 @@ from django.contrib.auth.forms import PasswordChangeForm
 from django.contrib import messages
 from django.contrib.auth import update_session_auth_hash
 from django.utils.translation import ugettext as _
+import os
 
 
 @login_required
@@ -40,3 +41,12 @@ def logout_view(request):
     print("Logout!!")
     logout(request)
     return redirect(reverse("login:login"))
+
+def calculate_fibonacci(request):
+    if request.method == 'GET':
+        num = request.GET['num'];
+        result = os.popen("java ../ShellTest.java "+num);
+        result = [zeile.strip() for zeile in result]
+        print(result);
+        return HttpResponse("true");
+    return HttpResponse("false");
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