68 lines
2.7 KiB
Python
68 lines
2.7 KiB
Python
# Copyright (c) 2014 Hewlett-Packard Development Company, L.P.
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
|
|
# implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
|
|
import kafka.client
|
|
import kafka.producer
|
|
import logging
|
|
import statsd
|
|
|
|
from mon_notification.processors import BaseProcessor
|
|
|
|
log = logging.getLogger(__name__)
|
|
|
|
|
|
class SentNotificationProcessor(BaseProcessor):
|
|
"""Processes notifications which have been sent
|
|
This involves adding them into a kafka topic for persisting by another process and adding the alarm
|
|
to the finished queue.
|
|
"""
|
|
|
|
def __init__(self, sent_queue, finished_queue, url, topic):
|
|
"""Init
|
|
url, group - kafka connection details
|
|
topic - kafka topic to publish notifications to
|
|
finished_queue - queue written to when notifications are fully finished.
|
|
sent_queue - the sent_notifications queue notifications are read from
|
|
"""
|
|
self.topic = topic
|
|
self.finished_queue = finished_queue
|
|
self.sent_queue = sent_queue
|
|
|
|
self.kafka = kafka.client.KafkaClient(url)
|
|
self.producer = kafka.producer.SimpleProducer(
|
|
self.kafka,
|
|
async=False,
|
|
req_acks=kafka.producer.SimpleProducer.ACK_AFTER_LOCAL_WRITE,
|
|
ack_timeout=2000
|
|
)
|
|
|
|
def run(self):
|
|
"""Takes messages from the sent_queue, puts them on the kafka notification topic and then adds
|
|
partition/offset to the finished queue
|
|
"""
|
|
published_count = statsd.Counter('PublishedToKafka')
|
|
while True:
|
|
notifications = self.sent_queue.get()
|
|
for notification in notifications:
|
|
responses = self.producer.send_messages(self.topic, notification.to_json())
|
|
published_count += 1
|
|
log.debug('Published to topic %s, message %s' % (self.topic, notification.to_json()))
|
|
for resp in responses:
|
|
if resp.error != 0:
|
|
log.error('Error publishing to %s topic, error message %s' %
|
|
(self.topic, resp.error))
|
|
self._add_to_queue(
|
|
self.finished_queue, 'finished', (notifications[0].src_partition, notifications[0].src_offset))
|