Source code for towhee.engine.operator_runner.filter_runner

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# Licensed under the Apache License, Version 2.0 (the "License");
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#     http://www.apache.org/licenses/LICENSE-2.0
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from towhee.engine.operator_runner.runner_base import RunnerBase
from towhee.errors import OpIOTypeError


[docs]class FilterRunner(RunnerBase): """ FilterRunner Filter operator's output must be a bool type, if the output is true, pass data to the next operator else drop it. """ def _set_outputs(self, output: bool): if not isinstance(output, bool): raise OpIOTypeError('Filter operator\'s output must be a bool type, this one is {}'.format(type(output))) if output: self._writer.write(self._row_data) else: self._frame.empty = True self._writer.write((self._frame, ))