68 lines
2.3 KiB
Python
68 lines
2.3 KiB
Python
# (C) Copyright 2016-2017 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
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import simplejson as json
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from monasca_persister.repositories.influxdb import abstract_repository
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from monasca_persister.repositories.influxdb import line_utils
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from monasca_persister.repositories.utils import parse_measurement_message
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LOG = log.getLogger(__name__)
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class MetricInfluxdbRepository(abstract_repository.AbstractInfluxdbRepository):
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def __init__(self):
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super(MetricInfluxdbRepository, self).__init__()
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@staticmethod
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def process_message(message):
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(dimensions, metric_name, region, tenant_id, time_stamp, value,
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value_meta) = parse_measurement_message(message)
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tags = dimensions
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# TODO(brtknr): If database per tenant becomes the default and the only
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# option, recording tenant_id will be redundant.
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tags[u'_tenant_id'] = tenant_id
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tags[u'_region'] = region
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if not value_meta:
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value_meta_str = u'"{}"'
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else:
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value_meta_str = line_utils.escape_value(json.dumps(value_meta, ensure_ascii=False))
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key_values = [line_utils.escape_tag(metric_name)]
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# tags should be sorted client-side to take load off server
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for key in sorted(tags.keys()):
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key_tag = line_utils.escape_tag(key)
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value_tag = line_utils.escape_tag(tags[key])
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key_values.append(key_tag + u'=' + value_tag)
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key_values = u','.join(key_values)
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value_field = u'value={}'.format(value)
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value_meta_field = u'value_meta=' + value_meta_str
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data = key_values + u' ' + value_field + u',' + \
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value_meta_field + u' ' + str(int(time_stamp))
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LOG.debug(data)
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return data, tenant_id
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