Example #1
0
 def testPut(self):
     cache = getReadThroughCache()
     testKey = self._getKey('ds', 'dp', 'rra', 'perf/path', '1')
     cache.put('ds', 'dp', 'rra', 'perf/path', '1', 42.0)
     cache._readLastValue = mockReturnValue(54.11)
     self.assertIn(testKey, cache._cache)
     self.assertEqual(cache.getLastValue('ds', 'dp', 'rra', False, 1, {'rrdpath': 'perf/path', 'uuid': 1}), 42.0)
    def testGetLastValues(self):
        cache = getReadThroughCache()
        targets = [{'rrdpath': 'perf/path1', 'uuid': '1'},
                   {'rrdpath': 'perf/path2', 'uuid': '2'}]
        testKeys = [
            self._getKey('ds', 'dp', 'rra', target['rrdpath'], target['uuid'])
            for target in targets]

        cache._readLastValue = mockReturnValue(54.11)
        for testKey in testKeys:
            self.assertNotIn(testKey, cache._cache)

        expectedValues = cache.getLastValues(
            'ds', 'dp', 'rra', False, 1, targets)[0]
        self.assertDictEqual(
            {k: v for k, v in expectedValues.iteritems()},
            {'1': 54.11, '2': 54.11})

        for testKey in testKeys:
            self.assertIn(testKey, cache._cache)

        cache._readLastValue = mockReturnValue(65.43)
        expectedValues = cache.getLastValues(
            'ds', 'dp', 'rra', False, 1, targets)[0]
        self.assertDictEqual(
            {k: v for k, v in expectedValues.iteritems()},
            {'1': 54.11, '2': 54.11})

        cache._readLastValue = mockReturnValue(None)
        expectedValues = cache.getLastValues(
            'ds', 'dp', 'rra', False, 1, targets)[0]
        self.assertDictEqual(
            {k: v for k, v in expectedValues.iteritems()},
            {'1': 54.11, '2': 54.11})
Example #3
0
 def _getKey(self, ds, dp, rra, rrdpath, uuid):
     """Return correct cache key for cache implementation."""
     cache = getReadThroughCache()
     self.assertIn(cache._targetKey, ('rrdpath', 'uuid'))
     if cache._targetKey == 'uuid':
         return cache._getKey(ds, dp, rra, uuid)
     elif cache._targetKey == 'rrdpath':
         return cache._getKey(ds, dp, rra, rrdpath)
 def __init__(self, config):
     self.log = ContextLogAdapter(
         LOG, {'context': '{} ({}):'.format(
             self.__class__.__name__, config.id)})
     # This is a per-run cache of latest RRD values by path+RRA,
     # used in case of multiple different aggregated datapoints
     # on a single target datasource.
     self.rrdcache = getReadThroughCache()
 def __init__(self):
     #This is a per-run cache of latest RRD values by path+RRA, used in case of multiple
     #different aggregated datapoints on a single target datasource.
     self.rrdcache = getReadThroughCache()