86 lines
2.7 KiB
Python
86 lines
2.7 KiB
Python
# Copyright 2016 Hewlett Packard Enterprise Development Company LP
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# 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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import abc
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import json
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from monasca_common.kafka_lib.client import KafkaClient
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from monasca_common.kafka_lib.producer import SimpleProducer
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from monasca_common.simport import simport
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from oslo_config import cfg
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class MessageAdapter(object):
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@abc.abstractmethod
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def do_send_metric(self, metric):
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raise NotImplementedError(
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"Class %s doesn't implement do_send_metric(self, metric)"
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% self.__class__.__name__)
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class KafkaMessageAdapter(MessageAdapter):
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adapter_impl = None
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def __init__(self):
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client_for_writing = KafkaClient(cfg.CONF.messaging.brokers)
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self.producer = SimpleProducer(client_for_writing)
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self.topic = cfg.CONF.messaging.topic
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@staticmethod
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def init():
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# object to keep track of offsets
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KafkaMessageAdapter.adapter_impl = simport.load(
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cfg.CONF.messaging.adapter)()
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def do_send_metric(self, metric):
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self.producer.send_messages(
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self.topic,
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json.dumps(metric, separators=(',', ':')))
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return
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@staticmethod
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def send_metric(metric):
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if not KafkaMessageAdapter.adapter_impl:
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KafkaMessageAdapter.init()
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KafkaMessageAdapter.adapter_impl.do_send_metric(metric)
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class KafkaMessageAdapterPreHourly(MessageAdapter):
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adapter_impl = None
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def __init__(self):
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client_for_writing = KafkaClient(cfg.CONF.messaging.brokers)
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self.producer = SimpleProducer(client_for_writing)
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self.topic = cfg.CONF.messaging.topic_pre_hourly
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@staticmethod
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def init():
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# object to keep track of offsets
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KafkaMessageAdapterPreHourly.adapter_impl = simport.load(
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cfg.CONF.messaging.adapter_pre_hourly)()
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def do_send_metric(self, metric):
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self.producer.send_messages(
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self.topic,
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json.dumps(metric, separators=(',', ':')))
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return
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@staticmethod
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def send_metric(metric):
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if not KafkaMessageAdapterPreHourly.adapter_impl:
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KafkaMessageAdapterPreHourly.init()
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KafkaMessageAdapterPreHourly.adapter_impl.do_send_metric(metric)
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