def expand(self, pcoll):
"""
Implements class: `apache_beam.transforms.ptransform.PTransform.expand`
"""
print 'Starting Spotify API read'
LOGGER.setLevel(logging.INFO)
LOGGER.info('Starting Spotify API read')
return pcoll | iobase.Read(self._source)
def expand(self, pcoll):
return pcoll | iobase.Read(_CountingSource(count))
def expand(self, pcoll):
return pcoll | iobase.Read(self._mongo_source)
def expand(self, pcoll):
"""Implements :class:`~apache_beam.transforms.ptransform.PTransform.expand`"""
logger.info('Starting MongoDB read from {}.{} with query {}'.format(
self._db, self._coll, self._query))
return pcoll | iobase.Read(self._source)
def expand(self, pcoll: PCollection) -> PCollection:
return pcoll | iobase.Read(
MySQLSource(self._query, self._host, self._database, self._user,
self._password, self._port, self._splitter))
def expand(self, pvalue):
return pvalue.pipeline | iobase.Read(self._source)
