Source code for towhee.engine.operator_runner.window_runner

# Copyright 2021 Zilliz. All rights reserved.
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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 typing import Tuple, Union, Dict, List
import traceback

from towhee.engine.operator_runner.runner_base import RunnerBase
from towhee.engine.status import Status
from towhee.errors import OpIOTypeError


[docs]class WindowRunner(RunnerBase): """ WindowRunner, multiple inputs and multiple outputs. Wrapper will run in task executor in another thread or process. If run an op error, we should pass error info by an error handler. """ def _get_inputs(self) -> Tuple[bool, Dict[str, any]]: try: data = self._reader.read() return False, data except StopIteration: return True, None def _set_outputs(self, output: List[any]): if not isinstance(output, list): raise OpIOTypeError("Window operator's output must be a list, not a {}".format(type(output))) for data in output: self._writer.write(data._asdict()) def _call_op(self, inputs: List[Dict]) -> Tuple[bool, Union[str, any]]: try: outputs = self._op(inputs) return Status.ok_status(outputs) except Exception as e: # pylint: disable=broad-except err = "{}, {}".format(e, traceback.format_exc()) return Status.err_status(err)