+import argparse
import asyncio
import logging
from datetime import datetime, timezone
AuthorizationStatusType,
ClearCacheStatusType,
RegistrationStatusType,
+ ReportBaseType,
TransactionEventType,
)
from websockets import ConnectionClosed
logging.info("Received %s", Action.MeterValues)
return ocpp.v201.call_result.MeterValues()
+ @on(Action.GetBaseReport)
+ async def on_get_base_report(
+ self, request_id: int, report_base: ReportBaseType, **kwargs
+ ):
+ logging.info("Received %s", Action.GetBaseReport)
+ return ocpp.v201.call_result.GetBaseReport(
+ id_token_info={"status": ReportBaseType.accepted}
+ )
+
# Request handlers to emit OCPP messages.
async def send_clear_cache(self):
request = ocpp.v201.call.ClearCache()
else:
logging.info("%s failed", Action.ClearCache)
+ async def send_get_base_report(self):
+ request = ocpp.v201.call.GetBaseReport(
+ reportBase=ReportBaseType.ConfigurationInventory
+ )
+ response = await self.call(request)
+
+ if response.status == ReportBaseType.accepted:
+ logging.info("%s successful", Action.GetBaseReport)
+ else:
+ logging.info("%s failed", Action.GetBaseReport)
+
+
+# Function to send OCPP command
+async def send_ocpp_command(cp, command_name, delay=None, period=None):
+ try:
+ match command_name:
+ case Action.ClearCache:
+ logging.info("%s Send:", Action.ClearCache)
+ await cp.send_clear_cache()
+ case Action.GetBaseReport:
+ logging.info("%s Send:", Action.GetBaseReport)
+ await cp.send_get_base_report()
+ except Exception:
+ logging.exception(
+ f"Not supported or Failure while processing command {command_name}"
+ )
+
+ if delay:
+ await asyncio.sleep(delay)
+
+ if period:
+ my_timer = RepeatTimer(
+ period, asyncio.create_task, [cp.send_ocpp_command(command_name)]
+ )
+ my_timer.start()
+
# Function to handle new WebSocket connections.
async def on_connect(websocket, path):
charge_point_id = path.strip("/")
cp = ChargePoint(charge_point_id, websocket)
+
ChargePoints.add(cp)
try:
await cp.start()
+
except ConnectionClosed:
logging.info("ChargePoint %s closed connection", cp.id)
ChargePoints.remove(cp)
# Main function to start the WebSocket server.
async def main():
+ # Define argument parser
+ parser = argparse.ArgumentParser(description="OCPP2 Charge Point Simulator")
+ parser.add_argument("--command", type=str, help="OCPP2 Command Name")
+ parser.add_argument("--delay", type=int, help="Delay in seconds")
+ parser.add_argument("--period", type=int, help="Period in seconds")
+
# Create the WebSocket server and specify the handler for new connections.
server = await websockets.serve(
on_connect,
subprotocols=["ocpp2.0", "ocpp2.0.1"], # Specify OCPP 2.0.1 subprotocols.
)
logging.info("WebSocket Server Started")
+
+ args = parser.parse_args()
+
+ if args.command:
+ for cp in ChargePoints:
+ asyncio.create_task(
+ send_ocpp_command(cp, args.command, args.delay, args.period)
+ )
+
# Wait for the server to close (runs indefinitely).
await server.wait_closed()