Listen topics without threads

mqtt_data_collector.py

@@ -23,18 +23,15 @@ def __init__(self, topic_address, topic_name, topic_port):
         self.topic_name = topic_name
         self.topic_port = topic_port
 
-    def start_listening_topic_in_thread(self):
-        self.is_running = True
-        t = Thread(target=self._listen_topic)
-        t.start()
-
     def print_status(self):
         print(f"[Status] {self.topic_name}: msg_count: {self.msg_count}, is_running: {self.is_running}")
 
-    def _listen_topic(self):
+    def listen_topic(self):
         """
             Documentation for paho.mqtt.python: https://github.com/eclipse/paho.mqtt.python
         """
+        self.is_running = True
+
         client = mqtt.Client()
         client.on_connect = self._on_connect_callback()
         client.on_message = self._on_message_callback()
@@ -117,24 +114,17 @@ def main():
         for topic in topic_list:
             if topic.is_running == False:
                 print(f"Topic {topic.topic_name} was not running, starting it.")
-                topic.start_listening_topic_in_thread()
+                topic.listen_topic()
 
         # If listen period has passed, send data to Azure
         if time.time() > time_end:
+            time_end = time.time() + MONITOR_PERIOD_IN_SECONDS
             topic_data_map = {}
             for topic in topic_list:
                 topic_data_map_key = f"{topic.topic_address}:{topic.topic_name}:{topic.topic_port}"
                 topic_data_map[topic_data_map_key] = topic.msg_count
                 topic.msg_count = 0
-
-            if IS_DEBUG:
-                print(topic_data_map)
-            else:
-                send_mqtt_msg_count_into_azure(topic_data_map)
-                print(f"Mqtt metrics sent: {datetime.now().strftime('%Y-%m-%dT%H:%M:%S')}")
-
-            time_end = time.time() + MONITOR_PERIOD_IN_SECONDS
-
+            send_mqtt_msg_count_into_azure(topic_data_map)
         time.sleep(1)
 
 def send_mqtt_msg_count_into_azure(topic_data_map):
@@ -173,7 +163,11 @@ def send_mqtt_msg_count_into_azure(topic_data_map):
 
     custom_metric_json = json.dumps(custom_metric_object)
 
-    send_custom_metrics_request(custom_metric_json, attempts_remaining=3)
+    if IS_DEBUG:
+        print(custom_metric_json)
+    else:
+        send_custom_metrics_request(custom_metric_json, attempts_remaining=3)
+        print(f"Mqtt metrics sent: {datetime.now().strftime('%Y-%m-%dT%H:%M:%S')}")
 
 def get_series_array(topic_data_map):
     series_array = []