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#
#      http://www.apache.org/licenses/LICENSE-2.0
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import apache_beam as beam

from log_elements import LogElements


class ExtractAndMultiplyNumbers(beam.PTransform):

    def expand(self, pcoll):
        return (pcoll
                | beam.FlatMap(lambda line: map(int, line.split(',')))
                | beam.Map(lambda num: num * 10)
                )


p = beam.Pipeline()

(p | beam.Create(['1,2,3,4,5', '6,7,8,9,10'])
   | ExtractAndMultiplyNumbers()
   | LogElements())

p.run()