Reduce Resource Consumption
[osm/MON.git] / osm_mon / collector / collector.py
1 # -*- coding: utf-8 -*-
2
3 # Copyright 2018 Whitestack, LLC
4 # *************************************************************
5
6 # This file is part of OSM Monitoring module
7 # All Rights Reserved to Whitestack, LLC
8
9 # Licensed under the Apache License, Version 2.0 (the "License"); you may
10 # not use this file except in compliance with the License. You may obtain
11 # a copy of the License at
12
13 # http://www.apache.org/licenses/LICENSE-2.0
14
15 # Unless required by applicable law or agreed to in writing, software
16 # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
17 # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
18 # License for the specific language governing permissions and limitations
19 # under the License.
20 # For those usages not covered by the Apache License, Version 2.0 please
21 # contact: bdiaz@whitestack.com or glavado@whitestack.com
22 ##
23 import logging
24 import time
25
26 import peewee
27
28 from osm_mon.collector.backends.prometheus import PrometheusBackend
29 from osm_mon.collector.service import CollectorService
30 from osm_mon.core.config import Config
31
32 log = logging.getLogger(__name__)
33
34 METRIC_BACKENDS = [
35 PrometheusBackend
36 ]
37
38
39 class Collector:
40 def __init__(self, config: Config):
41 self.conf = config
42 self.service = CollectorService(config)
43 self.backends = []
44 self._init_backends()
45
46 def collect_forever(self):
47 log.debug('collect_forever')
48 while True:
49 try:
50 self.collect_metrics()
51 time.sleep(int(self.conf.get('collector', 'interval')))
52 except peewee.PeeweeException:
53 log.exception("Database error consuming message: ")
54 raise
55 except Exception:
56 log.exception("Error collecting metrics")
57
58 def collect_metrics(self):
59 metrics = self.service.collect_metrics()
60 for backend in self.backends:
61 backend.handle(metrics)
62
63 def _init_backends(self):
64 for backend in METRIC_BACKENDS:
65 self.backends.append(backend())