63 lines
2.6 KiB
Python
63 lines
2.6 KiB
Python
# (C) Copyright 2016 Hewlett Packard Enterprise Development Company LP
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# (C) Copyright 2017 SUSE LLC
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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 cassandra.concurrent import execute_concurrent_with_args
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from oslo_config import cfg
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from oslo_log import log
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import simplejson as json
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from monasca_persister.repositories.cassandra import abstract_repository
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from monasca_persister.repositories.utils import parse_alarm_state_hist_message
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LOG = log.getLogger(__name__)
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UPSERT_CQL = (
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'update monasca.alarm_state_history USING TTL ? '
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'set metric = ?, old_state = ?, new_state = ?, sub_alarms = ?, reason = ?, reason_data = ? '
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'where tenant_id = ? and alarm_id = ? and time_stamp = ?')
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class AlarmStateHistCassandraRepository(abstract_repository.AbstractCassandraRepository):
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def __init__(self):
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super(AlarmStateHistCassandraRepository, self).__init__()
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self._upsert_stmt = self._session.prepare(UPSERT_CQL)
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def process_message(self, message):
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(alarm_id, metrics, new_state, old_state, link, lifecycle_state, state_change_reason,
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sub_alarms_json_snake_case,
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tenant_id, time_stamp) = parse_alarm_state_hist_message(message)
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alarm_state_hist = (self._retention,
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json.dumps(metrics, ensure_ascii=False).encode('utf8'),
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old_state.encode('utf8'),
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new_state.encode('utf8'),
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sub_alarms_json_snake_case.encode('utf8'),
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state_change_reason.encode('utf8'),
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"{}".encode('utf8'),
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tenant_id.encode('utf8'),
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alarm_id.encode('utf8'),
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time_stamp)
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return alarm_state_hist, tenant_id
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def write_batch(self, alarm_state_hists):
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while alarm_state_hists:
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num_rows = min(len(alarm_state_hists), cfg.CONF.kafka_alarm_history.batch_size)
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batch = alarm_state_hists[:num_rows]
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execute_concurrent_with_args(self._session, self._upsert_stmt, batch)
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alarm_state_hists = alarm_state_hists[num_rows:]
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