Finalize project

3_Codeabgabe/components/entitiy_ident/entity_ident_service/Dockerfile

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+FROM python:3.8-slim
+COPY . /app
+WORKDIR /app
+RUN pip install -r requirements.txt
+ENV PORT 5002
+EXPOSE 5002
+ENTRYPOINT [ "python" ]
+CMD [ "entity_ident_server.py" ]

3_Codeabgabe/components/entitiy_ident/entity_ident_service/entity_ident_server.py

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+import os
+from bson import json_util
+from flask import Flask, request
+from flask_pymongo import PyMongo
+
+app = Flask(__name__)
+app.config["MONGO_URI"] = "mongodb://mongo:27017/entities"
+mongo = PyMongo(app)
+
+CAR1_SV = int(os.environ.get('DSE2021_CAR1_SV', 130))
+CAR2_SV = int(os.environ.get('DSE2021_CAR2_SV', 130))
+CAR3_SV = int(os.environ.get('DSE2021_CAR3_SV', 130))
+
+CAR1_SD = int(os.environ.get('DSE2021_CAR1_SD', 300))
+CAR2_SD = int(os.environ.get('DSE2021_CAR2_SD', 500))
+CAR3_SD = int(os.environ.get('DSE2021_CAR3_SD', 400))
+
+CAR1_ST = int(os.environ.get('DSE2021_CAR1_ST', 10))
+CAR2_ST = int(os.environ.get('DSE2021_CAR2_ST', 15))
+CAR3_ST = int(os.environ.get('DSE2021_CAR3_ST', 25))
+
+TL1_R = int(os.environ.get('DSE2021_TL1_R', 2000))
+TL2_R = int(os.environ.get('DSE2021_TL2_R', 800))
+TL3_R = int(os.environ.get('DSE2021_TL3_R', 1000))
+
+mongo.db.trafficLights.update_one({"id": "1"}, {"$set": {"range": TL1_R}})
+mongo.db.trafficLights.update_one({"id": "2"}, {"$set": {"range": TL2_R}})
+mongo.db.trafficLights.update_one({"id": "3"}, {"$set": {"range": TL3_R}})
+
+mongo.db.cars.update_one({"vin": "SCBFR7ZA5CC072256"}, {"$set": {"startingVelocity": CAR1_SV}})
+mongo.db.cars.update_one({"vin": "5GZCZ43D13S812715"}, {"$set": {"startingVelocity": CAR2_SV}})
+mongo.db.cars.update_one({"vin": "5GZCZ43D13S812716"}, {"$set": {"startingVelocity": CAR3_SV}})
+
+mongo.db.cars.update_one({"vin": "SCBFR7ZA5CC072256"}, {"$set": {"startingDistance": CAR1_SD}})
+mongo.db.cars.update_one({"vin": "5GZCZ43D13S812715"}, {"$set": {"startingDistance": CAR2_SD}})
+mongo.db.cars.update_one({"vin": "5GZCZ43D13S812716"}, {"$set": {"startingDistance": CAR3_SD}})
+
+mongo.db.cars.update_one({"vin": "SCBFR7ZA5CC072256"}, {"$set": {"startingTime": CAR1_ST}})
+mongo.db.cars.update_one({"vin": "5GZCZ43D13S812715"}, {"$set": {"startingTime": CAR2_ST}})
+mongo.db.cars.update_one({"vin": "5GZCZ43D13S812716"}, {"$set": {"startingTime": CAR3_ST}})
+
+
+@app.route('/api/v1/resources/cars', methods=['GET'])
+def get_cars():
+    query_parameters = request.args
+    vin = query_parameters.get('vin')
+
+    if vin is not None:
+        cars = [car for car in mongo.db.cars.find({'vin': vin})]
+    else:
+        cars = [car for car in mongo.db.cars.find({})]
+
+    return json_util.dumps({'cursor': cars})
+
+
+@app.route('/api/v1/resources/traffic_lights', methods=['GET'])
+def get_traffic_lights():
+    query_parameters = request.args
+    tl_id = query_parameters.get('id')
+
+    if tl_id is not None:
+        traffic_lights = [traffic_light for traffic_light in
+                          mongo.db.trafficLights.find({'id': tl_id})]
+    else:
+        traffic_lights = [traffic_light for traffic_light in mongo.db.trafficLights.find({})]
+
+    return json_util.dumps({'cursor': traffic_lights})
+
+
+@app.route('/api/v1/resources/traffic_lights_geo', methods=['GET'])
+def get_traffic_lights_geo():
+    query_parameters = request.args
+
+    lat = float(query_parameters.get('lat'))
+    lon = float(query_parameters.get('lon'))
+
+    traffic_lights = [
+        traffic_light for traffic_light in
+        mongo.db.trafficLights.aggregate([
+            {"$geoNear": {
+                "near": {
+                    "type": "Point",
+                    "coordinates": [lon, lat]
+                },
+                "spherical": True,
+                "distanceField": "calculatedRange"
+            }},
+            {"$redact": {
+                "$cond": {
+                    "if": {
+                        "$lte": ["$calculatedRange", "$range"]
+                    },
+                    "then": "$$KEEP",
+                    "else": "$$PRUNE"
+                }
+            }}
+        ]
+        )
+        if lat < traffic_light['location'][1]
+    ]
+
+    return json_util.dumps({'cursor': traffic_lights[:1]})
+
+
+if __name__ == '__main__':
+    app.run('0.0.0.0', 5002)

3_Codeabgabe/components/entitiy_ident/entity_ident_service/requirements.txt

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+flask
+Flask-PyMongo
+jsonify

3_Codeabgabe/components/entitiy_ident/mongo/Dockerfile

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+FROM mongo:4.4
+
+COPY ./cars.json .
+COPY ./traffic_lights.json .
+
+ADD import.sh /docker-entrypoint-initdb.d
+

3_Codeabgabe/components/entitiy_ident/mongo/cars.json

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+[
+  {
+    "oem": "BENTLEY",
+    "modelType": "Continental",
+    "vin": "SCBFR7ZA5CC072256"
+  },
+  {
+    "oem": "SATURN",
+    "modelType": "Vue",
+    "vin": "5GZCZ43D13S812715"
+  },
+  {
+    "oem": "SATURN",
+    "modelType": "Vue2",
+    "vin": "5GZCZ43D13S812716"
+  }
+]

3_Codeabgabe/components/entitiy_ident/mongo/import.sh

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+#!/usr/bin/env bash
+
+mongoimport --db entities --collection cars --type json --file cars.json --jsonArray
+mongoimport --db entities --collection trafficLights --type json --file traffic_lights.json --jsonArray
+
+mongo --eval 'db.trafficLights.ensureIndex({location:"2dsphere"})' entities

3_Codeabgabe/components/entitiy_ident/mongo/traffic_lights.json

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+[
+  {
+    "id": "1",
+    "location": [16.20719, 47.89584],
+    "switchingTime": 26,
+    "color": "RED"
+  },
+  {
+    "id": "2",
+    "location":  [16.20814, 47.90937],
+    "switchingTime": 16,
+    "color": "GREEN"
+  },
+  {
+    "id": "3",
+    "location":  [16.20917, 47.92703],
+    "switchingTime": 20,
+    "color": "RED"
+  }
+]