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import asyncio
import socket
from botcore.utils import scheduling
from statsd.client.base import StatsClientBase
class AsyncStatsClient(StatsClientBase):
"""An async transport method for statsd communication."""
def __init__(
self,
loop: asyncio.AbstractEventLoop,
host: str = 'localhost',
port: int = 8125,
prefix: str = None
):
"""Create a new client."""
family, _, _, _, addr = socket.getaddrinfo(
host, port, socket.AF_INET, socket.SOCK_DGRAM)[0]
self._addr = addr
self._prefix = prefix
self._loop = loop
self._transport = None
async def create_socket(self) -> None:
"""Use the loop.create_datagram_endpoint method to create a socket."""
self._transport, _ = await self._loop.create_datagram_endpoint(
asyncio.DatagramProtocol,
family=socket.AF_INET,
remote_addr=self._addr
)
def _send(self, data: str) -> None:
"""Start an async task to send data to statsd."""
scheduling.create_task(self._async_send(data), event_loop=self._loop)
async def _async_send(self, data: str) -> None:
"""Send data to the statsd server using the async transport."""
self._transport.sendto(data.encode('ascii'), self._addr)
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