[P] Move diagrams into a dedicated directory

MapView/main.py

@@ -32,7 +32,7 @@ class MapViewApp(App):
         Встановлює необхідні маркери, викликає функцію для оновлення мапи
         """
         self.update()
-        Clock.schedule_interval(self.update, 0.1)
+        Clock.schedule_interval(self.update, 5)
 
     def update(self, *args):
         """

agent/src/config.py

@@ -8,7 +8,7 @@ def try_parse(type, value: str):
         return None
 
 
-USER_ID = try_parse(int, os.environ.get("USER_ID")) or 1
+USER_ID = 1
 # MQTT config
 MQTT_BROKER_HOST = os.environ.get("MQTT_BROKER_HOST") or "mqtt"
 MQTT_BROKER_PORT = try_parse(int, os.environ.get("MQTT_BROKER_PORT")) or 1883

agent/src/main.py

@@ -1,7 +1,6 @@
 from paho.mqtt import client as mqtt_client
 from schema.aggregated_data_schema import AggregatedDataSchema
 from file_datasource import FileDatasource
-import logging
 import config
 
 
@@ -29,7 +28,6 @@ def publish(client, topic, datasource):
         data = datasource.read()
         msg = AggregatedDataSchema().dumps(data)
         result = client.publish(topic, msg)
-        logging.info(f"Published to {topic}: {msg[:50]}...")
         status = result[0]
         if status != 0:
             print(f"Failed to send message to topic {topic}")

diagrams/sequence.puml

@@ -0,0 +1,30 @@
+@startuml
+participant Agent as agent
+participant "MQTT Broker (raw\ntopic)" as mqtt1
+participant "Edge Service" as edge
+participant "MQTT\nBroker (processed\ntopic)" as mqtt2
+participant "Hub Service" as hub
+participant "Redis" as redis
+participant "Store API" as store
+participant "PostgreSQL" as db
+participant "MapView Client" as mapview
+
+agent -> mqtt1 : Publish raw\ntelemetry
+mqtt1 -> edge : Deliver raw\nmessage
+edge -> edge : Validate\nAgentData
+edge -> edge : Process\ntelemetry
+edge -> mqtt2 : Publish\nprocessed data
+mqtt2 -> hub : Deliver processed\nmessage
+hub -> hub : Validate\nProcessedAgentData
+hub -> redis : LPUSH to buffer
+hub -> redis : LPOP batch item
+redis -> hub : Return item
+hub -> store : POST batch
+store -> db : INSERT records
+db --> store : Return created\nrecords
+store -> mapview : WebSocket push
+mapview -> mapview : Sort by timestamp
+mapview -> mapview : Update vehicle\nmarker
+mapview -> mapview : Add pothole/bump\nmarker
+store --> hub : Success response
+@enduml

diagrams/use-case.puml

@@ -0,0 +1,23 @@
+@startuml
+rectangle IoT-Systems {
+  usecase "Collect telemetry (accelerometer + GPS)" as uc1
+  usecase "Send telemetry" as uc2
+  usecase "Process telemetry" as uc3
+  usecase "Determine road condition (pothole / bump /\nnormal)" as uc4
+  usecase "View road defect marks" as uc5
+  usecase "View route on map" as uc6
+}
+
+rectangle "The user is the card operator" as uc10
+rectangle "Sensor Agent\n(Device/STM32/Emulator)" as uc11
+
+uc11 - uc1
+uc11 - uc2
+
+uc10 - uc5
+uc10 - uc6
+
+uc2 -.|> uc3 : <<include>>
+uc3 -.|> uc4 : <<include>>
+
+@enduml

docker-compose.yaml

@@ -22,7 +22,6 @@ services:
     depends_on:
       - mqtt
     environment:
-      PYTHONUNBUFFERED: 1
       MQTT_BROKER_HOST: "mqtt"
       MQTT_BROKER_PORT: 1883
       MQTT_TOPIC: "agent_data_topic"
@@ -40,10 +39,9 @@ services:
     environment:
       MQTT_BROKER_HOST: "mqtt"
       MQTT_BROKER_PORT: 1883
-      MQTT_TOPIC: "agent_data_topic"
+      MQTT_TOPIC: " "
-      HUB_HOST: "hub"
+      HUB_HOST: "store"
       HUB_PORT: 8000
-      HUB_CONNECTION_TYPE: "http"
       HUB_MQTT_BROKER_HOST: "mqtt"
       HUB_MQTT_BROKER_PORT: 1883
       HUB_MQTT_TOPIC: "processed_data_topic"
@@ -91,7 +89,6 @@ services:
       - postgres_db
     restart: always
     environment:
-      PYTHONUNBUFFERED: 1
       POSTGRES_USER: user
       POSTGRES_PASSWORD: pass
       POSTGRES_DB: test_db
@@ -123,7 +120,6 @@ services:
       - redis
       - store
     environment:
-      PYTHONUNBUFFERED: 1
       STORE_API_HOST: "store"
       STORE_API_PORT: 8000
       REDIS_HOST: "redis"

edge/app/adapters/agent_mqtt_adapter.py

@@ -13,7 +13,9 @@ class AgentMQTTAdapter(AgentGateway):
         broker_port,
         topic,
         hub_gateway: HubGateway,
+        batch_size=10,
     ):
+        self.batch_size = batch_size
         # MQTT
         self.broker_host = broker_host
         self.broker_port = broker_port
@@ -33,21 +35,42 @@ class AgentMQTTAdapter(AgentGateway):
         """Processing agent data and sent it to hub gateway"""
         try:
             payload: str = msg.payload.decode("utf-8")
-
+            # Create AgentData instance with the received data
             agent_data = AgentData.model_validate_json(payload, strict=True)
+            # Process the received data (you can call a use case here if needed)
             processed_data = process_agent_data(agent_data)
-
+            # Store the agent_data in the database (you can send it to the data processing module)
-            if self.hub_gateway.save_data(processed_data):
+            if not self.hub_gateway.save_data(processed_data):
-                logging.info("Processed data successfully forwarded to the Hub.")
+                logging.error("Hub is not available")
-            else:
-                logging.error("Failed to send data: Hub gateway is unavailable.")
         except Exception as e:
-            logging.error(f"Error processing MQTT message: {e}")
+            logging.info(f"Error processing MQTT message: {e}")
 
     def connect(self):
         self.client.on_connect = self.on_connect
         self.client.on_message = self.on_message
         self.client.connect(self.broker_host, self.broker_port, 60)
 
-    def loop_forever(self):
+    def start(self):
-        self.client.loop_forever()
+        self.client.loop_start()
+
+    def stop(self):
+        self.client.loop_stop()
+
+
+# Usage example:
+if __name__ == "__main__":
+    broker_host = "localhost"
+    broker_port = 1883
+    topic = "agent_data_topic"
+    # Assuming you have implemented the StoreGateway and passed it to the adapter
+    store_gateway = HubGateway()
+    adapter = AgentMQTTAdapter(broker_host, broker_port, topic, store_gateway)
+    adapter.connect()
+    adapter.start()
+    try:
+        # Keep the adapter running in the background
+        while True:
+            pass
+    except KeyboardInterrupt:
+        adapter.stop()
+        logging.info("Adapter stopped.")

edge/app/entities/agent_data.py

@@ -14,7 +14,6 @@ class GpsData(BaseModel):
 
 
 class AgentData(BaseModel):
-    user_id: int
     accelerometer: AccelerometerData
     gps: GpsData
     timestamp: datetime

edge/app/interfaces/agent_gateway.py

@@ -26,8 +26,15 @@ class AgentGateway(ABC):
         pass
 
     @abstractmethod
-    def loop_forever(self):
+    def start(self):
         """
-        Method to await for new messages.
+        Method to start listening for messages from the agent.
+        """
+        pass
+
+    @abstractmethod
+    def stop(self):
+        """
+        Method to stop the agent gateway and clean up resources.
         """
         pass

edge/app/usecases/data_processing.py

@@ -13,7 +13,3 @@ def process_agent_data(
         processed_data_batch (ProcessedAgentData): Processed data containing the classified state of the road surface and agent data.
     """
     # Implement it
-    return ProcessedAgentData(
-        road_state="normal",
-        agent_data=agent_data
-    )

edge/config.py

@@ -16,12 +16,9 @@ MQTT_TOPIC = os.environ.get("MQTT_TOPIC") or "agent_data_topic"
 # Configuration for hub MQTT
 HUB_MQTT_BROKER_HOST = os.environ.get("HUB_MQTT_BROKER_HOST") or "localhost"
 HUB_MQTT_BROKER_PORT = try_parse_int(os.environ.get("HUB_MQTT_BROKER_PORT")) or 1883
-HUB_MQTT_TOPIC = os.environ.get("HUB_MQTT_TOPIC") or "processed_data_topic"
+HUB_MQTT_TOPIC = os.environ.get("HUB_MQTT_TOPIC") or "processed_agent_data_topic"
 
 # Configuration for the Hub
 HUB_HOST = os.environ.get("HUB_HOST") or "localhost"
-HUB_PORT = try_parse_int(os.environ.get("HUB_PORT")) or 8000
+HUB_PORT = try_parse_int(os.environ.get("HUB_PORT")) or 12000
 HUB_URL = f"http://{HUB_HOST}:{HUB_PORT}"
-
-# For choosing type of connection
-HUB_CONNECTION_TYPE = os.environ.get("HUB_CONNECTION_TYPE") or "mqtt"

edge/main.py

@@ -10,51 +10,42 @@ from config import (
     HUB_MQTT_BROKER_HOST,
     HUB_MQTT_BROKER_PORT,
     HUB_MQTT_TOPIC,
-    HUB_CONNECTION_TYPE,
 )
 
 if __name__ == "__main__":
     # Configure logging settings
     logging.basicConfig(
-        level=logging.INFO,
+        level=logging.INFO,  # Set the log level to INFO (you can use logging.DEBUG for more detailed logs)
         format="[%(asctime)s] [%(levelname)s] [%(module)s] %(message)s",
         handlers=[
-            logging.StreamHandler(),
+            logging.StreamHandler(),  # Output log messages to the console
-            logging.FileHandler("app.log"),
+            logging.FileHandler("app.log"),  # Save log messages to a file
         ],
     )
-
+    # Create an instance of the StoreApiAdapter using the configuration
-    # Logic to select the adapter based on configuration (SCRUM-93 & SCRUM-94)
+    # hub_adapter = HubHttpAdapter(
-    # This allows easy switching between HTTP and MQTT protocols
+    #     api_base_url=HUB_URL,
-    if HUB_CONNECTION_TYPE.lower() == "http":
+    # )
-        logging.info("Initializing HubHttpAdapter (SCRUM-93 integration)")
-        hub_adapter = HubHttpAdapter(
-            api_base_url=HUB_URL,
-        )
-    else:
-        logging.info("Initializing HubMqttAdapter (SCRUM-94 integration)")
     hub_adapter = HubMqttAdapter(
         broker=HUB_MQTT_BROKER_HOST,
         port=HUB_MQTT_BROKER_PORT,
         topic=HUB_MQTT_TOPIC,
     )
-
+    # Create an instance of the AgentMQTTAdapter using the configuration
-    # Create an instance of the AgentMQTTAdapter using the selected hub adapter
-    # This adapter acts as a bridge between the Agent and the Hub
     agent_adapter = AgentMQTTAdapter(
         broker_host=MQTT_BROKER_HOST,
         broker_port=MQTT_BROKER_PORT,
         topic=MQTT_TOPIC,
         hub_gateway=hub_adapter,
     )
-
     try:
-        logging.info(f"Connecting to MQTT broker at {MQTT_BROKER_HOST}:{MQTT_BROKER_PORT}")
+        # Connect to the MQTT broker and start listening for messages
         agent_adapter.connect()
-
+        agent_adapter.start()
-        logging.info("Broker connection success. Waiting for data...")
+        # Keep the system running indefinitely (you can add other logic as needed)
-        agent_adapter.loop_forever()
+        while True:
+            pass
     except KeyboardInterrupt:
-        logging.info("Interrupt signal received. Shutting down...")
+        # Stop the MQTT adapter and exit gracefully if interrupted by the user
-        agent_adapter.disconnect()
+        agent_adapter.stop()
-        logging.info("Disconnected from MQTT broker.")
+        logging.info("System stopped.")

store/main.py

@@ -33,7 +33,7 @@ processed_agent_data = Table(
 )
 
 # WebSocket subscriptions
-subscriptions: Set[WebSocket] = set()
+subscriptions: Dict[int, Set[WebSocket]] = {}
 
 
 # FastAPI WebSocket endpoint
@@ -41,7 +41,10 @@ subscriptions: Set[WebSocket] = set()
 async def websocket_endpoint(websocket: WebSocket, user_id: int):
     await websocket.accept()
 
-    subscriptions.add(websocket)
+    if user_id not in subscriptions:
+        subscriptions[user_id] = set()
+
+    subscriptions[user_id].add(websocket)
 
     try:
         # send already available data
@@ -52,20 +55,20 @@ async def websocket_endpoint(websocket: WebSocket, user_id: int):
         for i in jsonable_data:
             i['timestamp'] = i['timestamp'].strftime("%Y-%m-%dT%H:%M:%SZ")
 
-        for i in jsonable_data:
+        await websocket.send_json(json.dumps(jsonable_data))
-            await websocket.send_json(json.dumps([i]))
 
         # receive forever
         while True:
             await websocket.receive_text()
     except WebSocketDisconnect:
-        subscriptions.remove(websocket)
+        subscriptions[user_id].remove(websocket)
 
 
 # Function to send data to subscribed users
-async def send_data_to_subscribers(data):
+async def send_data_to_subscribers(user_id: int, data):
-    for websocket in subscriptions:
+    if user_id in subscriptions:
-        await websocket.send_json(json.dumps([data]))
+        for websocket in subscriptions[user_id]:
+            await websocket.send_json(json.dumps(data))
 
 
 # FastAPI CRUDL endpoints
@@ -97,7 +100,7 @@ async def create_processed_agent_data(data: List[ProcessedAgentData], user_id: i
         session.commit()
 
         for record in created_records:
-            await send_data_to_subscribers(jsonable_encoder(record))
+            await send_data_to_subscribers(user_id, jsonable_encoder(record))
         return created_records
     except Exception as err:
         session.rollback()