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# <FILESEP> |
import asyncio |
import logging |
import time |
from const import ( |
ERROR_LOOKBACK_MIN, |
MAX_ERROR_COUNT, |
MAX_RETRY_ATTEMPT, |
UDPC_UPDATE_CHECK_TIMEOUT, |
) |
from juicebox_telnet import JuiceboxTelnet |
_LOGGER = logging.getLogger(__name__) |
class JuiceboxUDPCUpdater: |
def __init__( |
self, |
juicebox_host, |
jpp_host, |
telnet_port, |
udpc_port=8047, |
telnet_timeout=None, |
loglevel=None, |
): |
if loglevel is not None: |
_LOGGER.setLevel(loglevel) |
self._juicebox_host = juicebox_host |
self._jpp_host = jpp_host |
self._udpc_port = udpc_port |
self._telnet_port = telnet_port |
self._telnet_timeout = telnet_timeout |
self._default_sleep_interval = 30 |
self._udpc_update_loop_task = None |
self._telnet = None |
self._error_count = 0 |
self._error_timestamp_list = [] |
async def start(self): |
_LOGGER.info("Starting JuiceboxUDPCUpdater") |
await self._connect() |
async def close(self): |
if self._telnet is not None: |
await self._telnet.close() |
self._telnet = None |
async def _connect(self): |
connect_attempt = 1 |
while ( |
self._telnet is None |
and connect_attempt <= MAX_RETRY_ATTEMPT |
and self._error_count < MAX_ERROR_COUNT |
): |
_LOGGER.debug( |
f"Telnet connection attempt {connect_attempt} of {MAX_RETRY_ATTEMPT}" |
) |
connect_attempt += 1 |
self._telnet = JuiceboxTelnet( |
self._juicebox_host, |
self._telnet_port, |
loglevel=_LOGGER.getEffectiveLevel(), |
timeout=self._telnet_timeout, |
) |
try: |
await self._telnet.open() |
except TimeoutError as e: |
_LOGGER.warning( |
"JuiceboxUDPCUpdater Telnet Timeout. Reconnecting. " |
f"({e.__class__.__qualname__}: {e})" |
) |
await self._add_error() |
await self._telnet.close() |
self._telnet = None |
pass |
except ConnectionResetError as e: |
_LOGGER.warning( |
"JuiceboxUDPCUpdater Telnet Connection Error. Reconnecting. " |
f"({e.__class__.__qualname__}: {e})" |
) |
await self._add_error() |
await self._telnet.close() |
self._telnet = None |
pass |
if self._telnet is None: |
raise ChildProcessError("JuiceboxUDPCUpdater: Unable to connect to Telnet.") |
if self._udpc_update_loop_task is None or self._udpc_update_loop_task.done(): |
self._udpc_update_loop_task = await self._udpc_update_loop() |
self._loop.create_task(self._udpc_update_loop_task) |
_LOGGER.info("JuiceboxUDPCUpdater Connected to Juicebox Telnet") |
async def _udpc_update_loop(self): |
_LOGGER.debug("Starting JuiceboxUDPCUpdater Loop") |
while self._error_count < MAX_ERROR_COUNT: |
sleep_interval = self._default_sleep_interval |
if self._telnet is None: |
_LOGGER.warning( |
"JuiceboxUDPCUpdater Telnet Connection Lost. Reconnecting." |
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