Source code for apache_beam.testing.benchmarks.nexmark.queries.query1

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"""Nexmark Query 1: Convert bid prices from dollars to euros.

The Nexmark suite is a series of queries (streaming pipelines) performed
on a simulation of auction events.

This query converts bid prices from dollars to euros.
It illustrates a simple map.
"""
# pytype: skip-file

import apache_beam as beam
from apache_beam.testing.benchmarks.nexmark.models import nexmark_model
from apache_beam.testing.benchmarks.nexmark.queries import nexmark_query_util

USD_TO_EURO = 0.89


[docs] def load(events, metadata=None, pipeline_options=None): return ( events | nexmark_query_util.JustBids() | 'ConvertToEuro' >> beam.Map( lambda bid: nexmark_model.Bid( bid.auction, bid.bidder, bid.price * USD_TO_EURO, bid.date_time, bid.extra)))