4 files changed, 70 insertions, 0 deletions
diff --git a/iot_barcode/__init__.py b/iot_barcode/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/iot_barcode/__init__.py
diff --git a/iot_barcode/config.py b/iot_barcode/config.py
new file mode 100644
index 0000000..7435f8b
--- /dev/null
+++ b/iot_barcode/config.py
@@ -0,0 +1,24 @@
+
+
+"""Module to read the Configuration File for the Service"""
+
+
+import sys
+import json
+
+from iot_barcode.static import CONFIG_PATH
+
+
+def get_config():
+    """Read Config File and return it as Python Object"""
+
+    try:
+        with open(CONFIG_PATH, "r") as config_file:
+            text = config_file.read()
+    except FileNotFoundError:
+        print("Config file does not exist.")
+        sys.exit(1)
+
+    data = json.loads(text)
+
+    return data
diff --git a/iot_barcode/mqtt.py b/iot_barcode/mqtt.py
new file mode 100644
index 0000000..2b0ece1
--- /dev/null
+++ b/iot_barcode/mqtt.py
@@ -0,0 +1,26 @@
+
+
+"""Provide MQTT Functionality for the Package"""
+
+
+import paho.mqtt.client as mqtt
+
+
+class MqttService():
+    """Bundle for MQTT Functionality"""
+
+    def __init__(self, config):
+        self.config = config
+        self.client = mqtt.Client()
+        self.client.on_connect = self.on_connect
+
+    def run(self):
+        self.client.connect(
+            self.config["mqtt"]["broker"],
+            self.config["mqtt"]["port"],
+            60
+        )
+        self.client.loop_start()
+
+    def on_connect(self, client, userdata, flags, rc):
+        client.subscribe(self.config["mqtt"]["topic"])
diff --git a/iot_barcode/static.py b/iot_barcode/static.py
new file mode 100644
index 0000000..638f017
--- /dev/null
+++ b/iot_barcode/static.py
@@ -0,0 +1,20 @@
+
+
+"""Module to store static Data for the whole Package"""
+
+
+CONFIG_PATH = "/etc/iot_barcode/config.json"
+
+KEYMAP = {
+    "KEY_0": "0",
+    "KEY_1": "1",
+    "KEY_2": "2",
+    "KEY_3": "3",
+    "KEY_4": "4",
+    "KEY_5": "5",
+    "KEY_6": "6",
+    "KEY_7": "7",
+    "KEY_8": "8",
+    "KEY_9": "9",
+    "KEY_ENTER": "\n",
+}