Connect entity ident service with orchestrator

components/entitiy_ident/mongo/traffic_lights.json

@@ -3,18 +3,21 @@
     "id": "1",
     "location": [16.0, 48.0],
     "range": 2000,
-    "switchingTime": 500
+    "switchingTime": 500,
+    "initialColor": "RED"
   },
   {
     "id": "2",
     "location":  [16.0, 48.1],
     "range": 800,
-    "switchingTime": 240
+    "switchingTime": 240,
+    "initialColor": "GREEN"
   },
   {
     "id": "3",
     "location":  [16.0, 48.2],
     "range": 1000,
-    "switchingTime": 360
+    "switchingTime": 360,
+    "initialColor": "RED"
   }
 ]

components/orchestration/orchestrator.py

@@ -3,6 +3,7 @@ import sys
 from random import randrange
 from typing import List, Dict
 
+import requests
 from dse_shared_libs import daf
 from dse_shared_libs.traffic_light_color import TrafficLightColor
 from dse_shared_libs.message_broker_wrapper import MBWrapper
@@ -25,18 +26,25 @@ class Orchestrator:
     _velocity_mbs: Dict[str, MBWrapper] = {}
 
     def __init__(self):
-        # TODO fetch available car VINs from Entity Ident
-        self.vins.append('SB164ABN1PE082000')
-        self.vins.append('SB999ABN1PE082111')
-        self.vins.append('SB555ABN1PE082555')
-        print('vins', self.vins)
 
-        # TODO fetch available TLs from Entity Ident
-        self.tls['traffic-light-1'] = {'color': TrafficLightColor.RED, 'switching_time': 120}
-        self.tls['traffic-light-2'] = {'color': TrafficLightColor.GREEN, 'switching_time': 240}
-        self.tls['traffic-light-3'] = {'color': TrafficLightColor.RED, 'switching_time': 360}
+        ENTITY_IDENT_URL = 'http://entityident:5002/api/v1/resources/'
+
+        response = requests.get(ENTITY_IDENT_URL + 'cars')
+        cars = response.json()
+
+        response = requests.get(ENTITY_IDENT_URL + 'traffic_lights')
+        traffic_lights = response.json()
+
+        for traffic_light in traffic_lights['cursor']:
+            self.tls[traffic_light['id']] = {'color': traffic_light['initialColor'], 'switching_time': traffic_light['switchingTime']}
+
         print('tls', self.tls)
 
+        for car in cars['cursor']:
+            self.vins.append(car['vin'])
+
+        print('vins', self.vins)
+
     def setup_msg_queues(self):
         # spawn the vehicle related message broker channels
         for vin in self.vins:

components/orchestration/requirements.txt

@@ -1,2 +1,3 @@
 flask
 geopy
+requests