From 326ead47cad6a3d763f2f3e976fac37287d3a66d Mon Sep 17 00:00:00 2001
From: frankknoll <Knoll_Frank@web.de>
Date: Thu, 12 May 2022 19:44:06 +0200
Subject: [PATCH] refactoring

---
 src/HowBadIsMyBatch.ipynb | 45 +++++++++++++++++----------------------
 1 file changed, 19 insertions(+), 26 deletions(-)

diff --git a/src/HowBadIsMyBatch.ipynb b/src/HowBadIsMyBatch.ipynb
index 23bf0e878ae..83cc5915bb6 100644
--- a/src/HowBadIsMyBatch.ipynb
+++ b/src/HowBadIsMyBatch.ipynb
@@ -138,41 +138,34 @@
    "source": [
     "import os\n",
     "\n",
-    "def startEmulator():\n",
-    "    os.system(\"/home/frankknoll/Android/Sdk/emulator/emulator -avd Pixel_2_API_30 -no-window &\")\n",
+    "class Emulator:\n",
     "    \n",
-    "def stopEmulator():\n",
-    "    ! adb emu kill"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "id": "fb3755a6",
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "startEmulator()"
+    "    @staticmethod\n",
+    "    def runWithinEmulator(runnable):\n",
+    "        Emulator._startEmulator()\n",
+    "        result = runnable()\n",
+    "        Emulator._stopEmulator()\n",
+    "        return result\n",
+    "    \n",
+    "    @staticmethod\n",
+    "    def _startEmulator():\n",
+    "        os.system(\"/home/frankknoll/Android/Sdk/emulator/emulator -avd Pixel_2_API_30 -no-window &\")\n",
+    "\n",
+    "    @staticmethod\n",
+    "    def _stopEmulator():\n",
+    "        ! adb emu kill\n"
    ]
   },
   {
    "cell_type": "code",
    "execution_count": null,
    "id": "c113e49d",
-   "metadata": {},
+   "metadata": {
+    "scrolled": false
+   },
    "outputs": [],
    "source": [
-    "textInImage = detectTextInImage(captchaImageFile)"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "id": "cdf3fbe1",
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "stopEmulator()"
+    "textInImage = Emulator.runWithinEmulator(lambda: detectTextInImage(captchaImageFile))"
    ]
   },
   {