+import argparse
import asyncio
import logging
from datetime import datetime, timezone
AuthorizationStatusType,
ClearCacheStatusType,
RegistrationStatusType,
+ ReportBaseType,
TransactionEventType,
)
from websockets import ConnectionClosed
# Define a ChargePoint class inheriting from the OCPP 2.0.1 ChargePoint class.
class ChargePoint(ocpp.v201.ChargePoint):
- def __init__(self, charge_point_id, connection):
- super().__init__(self, charge_point_id, connection)
- self._ws_ping_timer = RepeatTimer(60, self.web_socket_ping)
- self._ws_ping_timer.start()
-
- def stop(self):
- self._ws_ping_timer.cancel()
-
- def web_socket_ping(self):
- try:
- self._connection.ping()
- except ConnectionClosed:
- ChargePoints.remove(self)
- self.stop()
-
# Message handlers to receive OCPP messages.
@on(Action.BootNotification)
async def on_boot_notification(self, charging_station, reason, **kwargs):
- logging.info("Received BootNotification")
+ logging.info("Received %s", Action.BootNotification)
# Create and return a BootNotification response with the current time,
# an interval of 60 seconds, and an accepted status.
return ocpp.v201.call_result.BootNotification(
@on(Action.Heartbeat)
async def on_heartbeat(self, **kwargs):
- logging.info("Received Heartbeat")
+ logging.info("Received %s", Action.Heartbeat)
return ocpp.v201.call_result.Heartbeat(
current_time=datetime.now(timezone.utc).isoformat()
)
async def on_status_notification(
self, timestamp, evse_id: int, connector_id: int, connector_status, **kwargs
):
- logging.info("Received StatusNotification")
+ logging.info("Received %s", Action.StatusNotification)
return ocpp.v201.call_result.StatusNotification()
@on(Action.Authorize)
async def on_authorize(self, id_token, **kwargs):
- logging.info("Received Authorize")
+ logging.info("Received %s", Action.Authorize)
return ocpp.v201.call_result.Authorize(
id_token_info={"status": AuthorizationStatusType.accepted}
)
):
match event_type:
case TransactionEventType.started:
- logging.info("Received TransactionEvent Started")
+ logging.info("Received %s Started", Action.TransactionEvent)
return ocpp.v201.call_result.TransactionEvent(
id_token_info={"status": AuthorizationStatusType.accepted}
)
case TransactionEventType.updated:
- logging.info("Received TransactionEvent Updated")
+ logging.info("Received %s Updated", Action.TransactionEvent)
return ocpp.v201.call_result.TransactionEvent(total_cost=10)
case TransactionEventType.ended:
- logging.info("Received TransactionEvent Ended")
+ logging.info("Received %s Ended", Action.TransactionEvent)
return ocpp.v201.call_result.TransactionEvent()
@on(Action.MeterValues)
async def on_meter_values(self, evse_id: int, meter_value, **kwargs):
- logging.info("Received MeterValues")
+ 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()
response = await self.call(request)
if response.status == ClearCacheStatusType.accepted:
- logging.info("Cache clearing successful")
+ logging.info("%s successful", Action.ClearCache)
else:
- logging.info("Cache clearing failed")
+ 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.
charge_point_id = path.strip("/")
cp = ChargePoint(charge_point_id, websocket)
+
ChargePoints.add(cp)
+ try:
+ await cp.start()
- # Start the ChargePoint instance to listen for incoming messages.
- await cp.start()
+ except ConnectionClosed:
+ logging.info("ChargePoint %s closed connection", cp.id)
+ ChargePoints.remove(cp)
+ logging.debug("Connected ChargePoint(s): %d", len(ChargePoints))
# 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()
repositories / e-mobility-charging-stations-simulator.git / blobdiff