85 lines
3.2 KiB
Python
85 lines
3.2 KiB
Python
# (C) Copyright 2014-2016 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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from oslo_log import log as logging
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from monasca_notification.common.repositories import exceptions as exc
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from monasca_notification.common.utils import get_db_repo
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from monasca_notification.common.utils import get_statsd_client
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from monasca_notification.types import notifiers
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log = logging.getLogger(__name__)
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class NotificationProcessor(object):
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def __init__(self):
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self.statsd = get_statsd_client()
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notifiers.init(self.statsd)
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notifiers.load_plugins()
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notifiers.config()
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self._db_repo = get_db_repo()
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self.insert_configured_plugins()
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def _remaining_plugin_types(self):
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configured_plugin_types = notifiers.enabled_notifications()
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persisted_plugin_types = self._db_repo.fetch_notification_method_types()
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return set(configured_plugin_types) - set(persisted_plugin_types)
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def insert_configured_plugins(self):
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"""Persists configured plugin types in DB
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For each notification type configured add it in db, if it is not there
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"""
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remaining_plugin_types = self._remaining_plugin_types()
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max_retry = len(remaining_plugin_types)
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retry_count = 0
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while remaining_plugin_types:
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retry_count = retry_count + 1
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try:
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log.info("New plugins detected: Adding new notification types %s to database",
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remaining_plugin_types)
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self._db_repo.insert_notification_method_types(remaining_plugin_types)
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except exc.DatabaseException as e:
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# There is a possibility the other process has already registered the type.
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remaining_plugin_types = self._remaining_plugin_types()
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if remaining_plugin_types and (retry_count >= max_retry):
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log.exception("Couldn't insert notification types %s", e)
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raise e
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else:
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log.debug("Plugin already exists. Ignore exception")
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def send(self, notifications):
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"""Send the notifications
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For each notification in a message it is sent according to its type.
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If all notifications fail the alarm partition/offset are added to the finished queue
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"""
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invalid_type_count = self.statsd.get_counter(name='invalid_type_count')
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sent_failed_count = self.statsd.get_counter(name='sent_failed_count')
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sent, failed, invalid = notifiers.send_notifications(notifications)
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if failed:
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sent_failed_count.increment(len(failed))
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if invalid:
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invalid_type_count.increment(len(invalid))
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return sent, failed
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