Message over TCP now in class form

api/main.py

@@ -6,16 +6,12 @@ import sqlite3
 import requests
 import time
 import socket
+import asyncio
 
-from util.Sqlite import Sqlite
+from common.Message import Message
 
 app = Flask(__name__)
 
-# init db
-# sqlite = Sqlite('./db/3lips.db')
-# schema = "api TEXT PRIMARY KEY, timestamp INTEGER NOT NULL"
-# sqlite.create_table("data", schema)
-
 # store state data
 servers = [
     {"name": "radar4", "url": "radar4.30hours.dev"},
@@ -40,6 +36,9 @@ adsbs = [
   {"name": "None", "url": ""}
 ]
 
+# init messaging
+message = Message('event', 6969)
+
 @app.route("/")
 def index():
     return render_template("index.html", servers=servers, \
@@ -55,9 +54,7 @@ def serve_static(file):
 @app.route("/api")
 def api():
     api = request.query_string.decode('utf-8')
-    # timestamp = time.time()*1000
-    # sqlite.add_entry("data", api, timestamp)
-    send_data_to_event(api)
+    message.send_message(api)
     
     urls = request.args.getlist("url")
     data = [{"url": 'http://' + url} for url in urls]
@@ -86,11 +83,5 @@ def serve_cesium_content(file):
         print(f"Error fetching content from Apache server: {e}")
     return Response('Error fetching content from Apache server', status=500, content_type='text/plain')
 
-def send_data_to_event(data):
-    with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
-        # Use the service name 'event' as specified in your Docker Compose file
-        s.connect(('event', 12345))
-        s.sendall(data.encode())
-
 if __name__ == "__main__":
     app.run(debug=True)

common/Message.py

@@ -0,0 +1,102 @@
+"""
+@file Message.py
+@author 30hours
+"""
+
+import socket
+import threading
+import asyncio
+
+class Message:
+
+    """
+    @class Message
+    @brief A class for simple TCP messaging using a listener and sender.
+    """
+
+    def __init__(self, host, port):
+
+        """
+        @brief Constructor for Message.
+        @param host (str): The host to bind the listener to.
+        @param port (int): The port to bind the listener to.
+        """
+      
+        self.host = host
+        self.port = port
+        self.server_socket = None
+        self.callback_message_received = None
+
+    def start_listener(self):
+
+        """
+        @brief Start the TCP listener to accept incoming connections.
+        @details Ensure this function is run in a separate thread.
+        @return None.
+        """
+
+        self.server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+        self.server_socket.bind((self.host, self.port))
+        self.server_socket.listen()
+
+        print(f"Listener is waiting for connections on {self.host}:{self.port}")
+
+        while True:
+            conn, addr = self.server_socket.accept()
+            thread = threading.Thread(target=self.handle_client, args=(conn, addr))
+            thread.start()
+
+    def handle_client(self, conn, addr):
+
+        """
+        @brief Handle communication with a connected client.
+        @param conn (socket.socket): The socket object for the connected client.
+        @param addr (tuple): The address (host, port) of the connected client.
+        @return None.
+        """
+
+        with conn:
+            print(f"Connected by {addr}")
+
+            while True:
+                data = conn.recv(1024)
+                if not data:
+                    break
+                decoded_data = data.decode()
+                print(f"Received data: {decoded_data}")
+
+                # Call the callback function if set
+                if self.callback_message_received:
+                    asyncio.run(self.callback_message_received(decoded_data))
+
+    def send_message(self, message):
+
+        """
+        @brief Send a message to the specified host and port.
+        @param message (str): The message to be sent.
+        @return None.
+        """
+
+        with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as client_socket:
+            client_socket.connect((self.host, self.port))
+            client_socket.sendall(message.encode())
+
+    def set_callback_message_received(self, callback):
+
+        """
+        @brief Set callback function when a message is received.
+        @param callback (function): The callback function.
+        @return None.
+        """
+
+        self.callback_message_received = callback
+
+    def close_listener(self):
+
+        """
+        @brief Close the listener socket.
+        @return None.
+        """
+
+        if self.server_socket:
+            self.server_socket.close()

docker-compose.yml

@@ -15,6 +15,8 @@ services:
       - 49156:5000
     networks:
       - 3lips
+    volumes:
+      - ./common:/app/common
     container_name: 3lips-api
 
   event:
@@ -26,7 +28,7 @@ services:
     networks:
       - 3lips
     volumes:
-      - ./db:/app/db
+      - ./common:/app/common
     container_name: 3lips-event
 
   cesium-apache:
@@ -37,6 +39,4 @@ services:
     image: cesium-apache
     networks:
       - 3lips
-    volumes:
-      - ./db:/app/db
     container_name: 3lips-cesium

event/event.py

@@ -3,37 +3,30 @@ import sqlite3
 import requests
 import threading
 import socket
-from datetime import datetime
+import asyncio
+import time
 
 from algorithm.associator.AdsbAssociator import AdsbAssociator
 from algorithm.coordreg.EllipseParametric import EllipseParametric
-from util.Sqlite import Sqlite
-
-# init db
-sqlite = Sqlite('./db/3lips.db')
+from common.Message import Message
 
 # init event loop
 api = []
 api_update = []
 
 async def event():
-    timestamp = datetime.now().strftime("%Y-%m-%d %H:%M:%S")
-    print("Event triggered at: " + timestamp, flush=True)
+
+    timestamp = int(time.time()*1000)
+    print("Event triggered at: " + str(timestamp), flush=True)
 
     # main event loop
     #for api_x in api:
 
       # request data from API
-      # response = requests.get(data_i["url_radar_detections"])
-      # data_i["radar_detections"] = 
 
     # API management
-    #if sqlite.table_exists('data'):
 
       # add new API requests
-      # rows = sqlite.fetch_all_rows("SELECT * FROM data")
-      # for row in rows:
-      #     print(row)
 
       # delete old API requests
 
@@ -47,28 +40,14 @@ async def main():
         await asyncio.sleep(1)
         api = api_update
 
-def start_event_listener():
-    with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as server_socket:
-        server_socket.bind(('event', 12345))
-        server_socket.listen()
+# message received callback
+async def callback_message_received(message):
+    print(f"Callback: Received message in event.py: {message}", flush=True)
 
-        print("Event listener is waiting for connections...")
-
-        while True:
-            conn, addr = server_socket.accept()
-            thread = threading.Thread(target=handle_client, args=(conn, addr))
-            thread.start()
-
-def handle_client(conn, addr):
-    with conn:
-        print(f"Connected by {addr}")
-
-        while True:
-            data = conn.recv(1024)
-            if not data:
-                break
-            print(f"Received data: {data.decode()}")
+# init messaging
+message = Message('event', 6969)
+message.set_callback_message_received(callback_message_received)
 
 if __name__ == "__main__":
-    threading.Thread(target=start_event_listener).start()
+    threading.Thread(target=message.start_listener).start()
     asyncio.run(main())