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##############################################################################
# Copyright (c) 2016 EMC and others.
#
# All rights reserved. This program and the accompanying materials
# are made available under the terms of the Apache License, Version 2.0
# which accompanies this distribution, and is available at
# http://www.apache.org/licenses/LICENSE-2.0
##############################################################################
import json
import logging
import requests
class GraphiteDB(object):
graphite_host = "storperf-graphite"
graphite_port = 8080
def __init__(self):
self.logger = logging.getLogger(__name__)
def fetch_item(self, target):
result = None
request = ("http://%s:%s/graphite/render/?format=json&target=%s"
% (self.graphite_host, self.graphite_port, target))
self.logger.debug("Calling %s" % (request))
response = requests.get(request)
if (response.status_code == 200):
result = json.loads(response.content)
return result
def fetch_series(self, workload, metric, io_type, time, duration):
series = []
end = time
start = end - duration
request = ("http://%s:%s/graphite/render/?target="
"averageSeries(%s.*.jobs.1.%s.%s)"
"&format=json"
"&from=%s"
"&until=%s"
% (self.graphite_host, self.graphite_port,
workload, io_type, metric,
start, end))
self.logger.debug("Calling %s" % (request))
response = requests.get(request)
if (response.status_code == 200):
series = self._series_results(json.loads(response.content))
return series
def _series_results(self, results):
series = []
for item in results:
datapoints = item['datapoints']
for datapoint in datapoints:
if datapoint[0] is not None:
series.append([datapoint[1], datapoint[0]])
return series
def make_fullname_pattern(self, workload):
parts = workload.split('.')
wildcards_needed = 7 - len(parts)
fullname = workload + (".*" * wildcards_needed)
return fullname
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