A debugging service that logs events to the console as they arrive.
Source code in src/prefect/server/events/services/event_logger.py
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58 | class EventLogger:
"""A debugging service that logs events to the console as they arrive."""
name: str = "EventLogger"
consumer_task: Optional[asyncio.Task] = None
async def start(self):
assert self.consumer_task is None, "Logger already started"
self.consumer = create_consumer("events")
console = rich.console.Console()
async def handler(message: Message):
now = pendulum.now("UTC")
event: ReceivedEvent = ReceivedEvent.model_validate_json(message.data)
console.print(
"Event:",
str(event.id).partition("-")[0],
f"{event.occurred.isoformat()}",
f" ({(event.occurred - now).total_seconds():>6,.2f})",
f"\\[[bold green]{event.event}[/]]",
event.resource.id,
)
console.file.flush()
self.consumer_task = asyncio.create_task(self.consumer.run(handler))
logger.debug("Event logger started")
try:
await self.consumer_task
except asyncio.CancelledError:
pass
async def stop(self):
assert self.consumer_task is not None, "Logger not started"
self.consumer_task.cancel()
try:
await self.consumer_task
except asyncio.CancelledError:
pass
finally:
self.consumer_task = None
logger.debug("Event logger stopped")
|