oss/Radicale
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Added connection recovery and logging

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This commit is contained in:
Tuna Celik 2020-08-17 15:09:38 +02:00
parent e38b88f9f7
commit b8af0c7490
1 changed files with 21 additions and 7 deletions
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28
radicale/hook/rabbitmq/__init__.py
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@ -1,30 +1,36 @@
import pika
from pika.exceptions import ChannelWrongStateError
from radicale import hook
from radicale.hook import HookNotificationItem
from radicale.log import logger
class Hook(hook.BaseHook):
def __init__(self, configuration):
super().__init__(configuration)
endpoint = configuration.get("hook", "rabbitmq_endpoint")
self._endpoint = configuration.get("hook", "rabbitmq_endpoint")
self._topic = configuration.get("hook", "rabbitmq_topic")
self._encoding = configuration.get("encoding", "stock")
self._make_connection_synced(endpoint)
self._make_declare_queue_synced(self._topic)
self._make_connection_synced()
self._make_declare_queue_synced()
def _make_connection_synced(self, endpoint):
parameters = pika.URLParameters(endpoint)
def _make_connection_synced(self):
parameters = pika.URLParameters(self._endpoint)
connection = pika.BlockingConnection(parameters)
self._channel = connection.channel()
def _make_declare_queue_synced(self, topic):
self._channel.queue_declare(queue=topic, durable=True)
def _make_declare_queue_synced(self):
self._channel.queue_declare(queue=self._topic, durable=True)
def notify(self, notification_item):
if isinstance(notification_item, HookNotificationItem):
self._notify(notification_item, True)
def _notify(self, notification_item, recall):
try:
self._channel.basic_publish(
exchange='',
routing_key=self._topic,
@ -32,3 +38,11 @@ class Hook(hook.BaseHook):
encoding=self._encoding
)
)
except ChannelWrongStateError as e:
if recall:
self._make_connection_synced()
self._notify(notification_item, False)
return
logger.error("An exception is occurred while "
"publishing hook notification item: %s",
e, exc_info=True)