#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
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"""
Utility functions used for integrating Metrics API into load tests pipelines.
"""
from __future__ import absolute_import
import time
import apache_beam as beam
from apache_beam.metrics import Metrics
[docs]class MeasureTime(beam.DoFn):
def __init__(self):
self.runtime_start = Metrics.distribution('pardo', 'runtime.start')
self.runtime_end = Metrics.distribution('pardo', 'runtime.end')
[docs] def start_bundle(self):
self.runtime_start.update(time.time())
[docs] def finish_bundle(self):
self.runtime_end.update(time.time())
[docs] def process(self, element):
yield element