traffic light sends orchestrator its status on change;

components/i_feed/traffic_light.py

@@ -1,21 +1,21 @@
+import pickle
 import threading
 import time
 from datetime import datetime
-from enum import Enum
 
 from circuitbreaker import circuit
 
 # Default switching time in seconds
+from shared import TrafficLightColor
+from shared.TrafficLightColor import Color
+from shared.message_broker_wrapper import MBWrapper
+
 SWITCHING_TIME = 120
 # Scale speed of switching by factor x
 SCALING = 100
 
 
 class TrafficLight:
-    class Color(Enum):
-        GREEN = 0
-        RED = 1
-
     # id of traffic light
     tlid: str
     # time between switches in seconds
@@ -31,6 +31,9 @@ class TrafficLight:
     # stores runner thread
     _t: threading.Thread
 
+    # outgoing traffic light state MBWrapper
+    _tl_mb: MBWrapper
+
     def __init__(self,
                  tlid: str,
                  switching_time: int = SWITCHING_TIME,
@@ -39,16 +42,19 @@ class TrafficLight:
         self.switching_time = switching_time
         self._starting_color = starting_color
 
+        self._tl_mb = MBWrapper(exchange_name='traffic_light_state_{}'.format(self.tlid))
+        self._tl_mb.setup_sender()
+
     def start(self):
         self.running = True
 
         def switcher():
-            num_colors = len(self.Color)
+            num_colors = len(TrafficLightColor.Color)
             # set current color to the one before starting color, because switch immediately happens in loop
             # therefore it sleeps on the end of the loop and first status is immediately sent to msg broker
-            self.current_color = TrafficLight.Color((self._starting_color.value - 1) % num_colors)
+            self.current_color = Color((self._starting_color.value - 1) % num_colors)
             while self.running:
-                self.current_color = TrafficLight.Color((self.current_color.value + 1) % num_colors)
+                self.current_color = Color((self.current_color.value + 1) % num_colors)
                 self.last_switch = datetime.now()
                 self.send_status_update()
                 time.sleep(self.switching_time / SCALING)
@@ -61,10 +67,24 @@ class TrafficLight:
 
     @circuit(failure_threshold=10, expected_exception=ConnectionError)
     def send_status_update(self):
-        # TODO inform the message broker about the current status
         print(self.tlid, self.current_color, self.last_switch)
+        self._tl_mb.send(pickle.dumps({
+            'tlid': self.tlid,
+            'color': self.current_color,
+            'last_switch': self.last_switch
+        }))
 
 
 if __name__ == '__main__':
-    tl1 = TrafficLight(tlid='tl1')
+    # TODO fetch and use data from Entity Ident
+
+    tl1 = TrafficLight(tlid='traffic-light-1', switching_time=120)
     tl1.start()
+
+    time.sleep(1)
+    tl2 = TrafficLight(tlid='traffic-light-2', switching_time=240)
+    tl2.start()
+
+    time.sleep(1)
+    tl3 = TrafficLight(tlid='traffic-light-3', switching_time=360)
+    tl3.start()

components/i_feed/vehicle.py

@@ -7,9 +7,9 @@ from typing import Union
 import geopy
 import geopy.distance
 from circuitbreaker import circuit
-from wrappers.daf import DAF
+from shared.daf import DAF
 
-from wrappers.message_broker_wrapper import MBWrapper
+from shared.message_broker_wrapper import MBWrapper
 
 # Lat, Long
 STARTING_POINT = geopy.Point(48.853, 2.349)
@@ -212,10 +212,15 @@ class Vehicle:
 
 
 if __name__ == "__main__":
+    # TODO fetch and use data from Entity Ident
+
     v1 = Vehicle(vin='SB164ABN1PE082000')
     v1.start_driving()
 
     time.sleep(1)
     v2 = Vehicle(vin='SB999ABN1PE082111')
     v2.start_driving()
-    # stop manually
+
+    time.sleep(0.5)
+    v3 = Vehicle(vin='SB555ABN1PE082555')
+    v3.start_driving()