openwebrx-clone/owrx/metrics.py

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import threading
class Metric(object):
def getValue(self):
return 0
class CounterMetric(Metric):
def __init__(self):
self.counter = 0
def inc(self, increment=1):
self.counter += increment
def getValue(self):
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return {"count": self.counter}
class DirectMetric(Metric):
def __init__(self, getter):
self.getter = getter
def getValue(self):
return self.getter()
class Metrics(object):
sharedInstance = None
creationLock = threading.Lock()
@staticmethod
def getSharedInstance():
with Metrics.creationLock:
if Metrics.sharedInstance is None:
Metrics.sharedInstance = Metrics()
return Metrics.sharedInstance
def __init__(self):
self.metrics = {}
def addMetric(self, name, metric):
self.metrics[name] = metric
def hasMetric(self, name):
return name in self.metrics
def getMetric(self, name):
if not self.hasMetric(name):
return None
return self.metrics[name]
def getMetrics(self):
result = {}
for (key, metric) in self.metrics.items():
partial = result
keys = key.split(".")
for keypart in keys[0:-1]:
if not keypart in partial:
partial[keypart] = {}
partial = partial[keypart]
partial[keys[-1]] = metric.getValue()
return result