72 lines
3.0 KiB
Python
72 lines
3.0 KiB
Python
# (C) Copyright 2015-2016 Hewlett Packard Enterprise Development LP
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import logging
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import time
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from monasca_common.kafka import consumer
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from monasca_common.kafka import producer
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from monasca_notification.common.utils import get_statsd_client
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from processors.alarm_processor import AlarmProcessor
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from processors.notification_processor import NotificationProcessor
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log = logging.getLogger(__name__)
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class NotificationEngine(object):
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def __init__(self, config):
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self._topics = {}
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self._topics['notification_topic'] = config['kafka']['notification_topic']
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self._topics['retry_topic'] = config['kafka']['notification_retry_topic']
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self._statsd = get_statsd_client(config)
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self._consumer = consumer.KafkaConsumer(
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config['kafka']['url'],
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config['zookeeper']['url'],
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config['zookeeper']['notification_path'],
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config['kafka']['group'],
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config['kafka']['alarm_topic'])
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self._producer = producer.KafkaProducer(config['kafka']['url'])
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self._alarm_ttl = config['processors']['alarm']['ttl']
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self._alarms = AlarmProcessor(self._alarm_ttl, config)
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self._notifier = NotificationProcessor(config)
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self._config = config
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def _add_periodic_notifications(self, notifications):
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for notification in notifications:
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topic = notification.periodic_topic
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if topic in self._config['kafka']['periodic'] and notification.type == "webhook":
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notification.notification_timestamp = time.time()
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self._producer.publish(self._config['kafka']['periodic'][topic],
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[notification.to_json()])
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def run(self):
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finished_count = self._statsd.get_counter(name='alarms_finished_count')
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for alarm in self._consumer:
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log.debug('Received alarm >|%s|<', str(alarm))
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notifications, partition, offset = self._alarms.to_notification(alarm)
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if notifications:
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self._add_periodic_notifications(notifications)
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sent, failed = self._notifier.send(notifications)
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self._producer.publish(self._topics['notification_topic'],
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[i.to_json() for i in sent])
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self._producer.publish(self._topics['retry_topic'],
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[i.to_json() for i in failed])
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self._consumer.commit()
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finished_count.increment()
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