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Postprocessor

Bases: QueryComponent

后处理器组件。

Source code in llama_index/core/postprocessor/types.py
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class PostprocessorComponent(QueryComponent):
    """后处理器组件。"""

    postprocessor: BaseNodePostprocessor = Field(..., description="Postprocessor")

    class Config:
        arbitrary_types_allowed = True

    def set_callback_manager(self, callback_manager: CallbackManager) -> None:
        """设置回调管理器。"""
        self.postprocessor.callback_manager = callback_manager

    def _validate_component_inputs(self, input: Dict[str, Any]) -> Dict[str, Any]:
        """在运行组件期间验证组件输入。"""
        # make sure `nodes` is a list of nodes
        if "nodes" not in input:
            raise ValueError("Input must have key 'nodes'")
        nodes = input["nodes"]
        if not isinstance(nodes, list):
            raise ValueError("Input nodes must be a list")
        for node in nodes:
            if not isinstance(node, NodeWithScore):
                raise ValueError("Input nodes must be a list of NodeWithScore")

        # if query_str exists, make sure `query_str` is stringable
        if "query_str" in input:
            input["query_str"] = validate_and_convert_stringable(input["query_str"])

        return input

    def _run_component(self, **kwargs: Any) -> Any:
        """运行组件。"""
        output = self.postprocessor.postprocess_nodes(
            kwargs["nodes"], query_str=kwargs.get("query_str", None)
        )
        return {"nodes": output}

    async def _arun_component(self, **kwargs: Any) -> Any:
        """运行组件(异步)。"""
        # NOTE: no native async for postprocessor
        return self._run_component(**kwargs)

    @property
    def input_keys(self) -> InputKeys:
        """输入键。"""
        return InputKeys.from_keys({"nodes"}, optional_keys={"query_str"})

    @property
    def output_keys(self) -> OutputKeys:
        """输出键。"""
        return OutputKeys.from_keys({"nodes"})

input_keys property #

input_keys: InputKeys

输入键。

output_keys property #

output_keys: OutputKeys

输出键。

set_callback_manager #

set_callback_manager(
    callback_manager: CallbackManager,
) -> None

设置回调管理器。

Source code in llama_index/core/postprocessor/types.py
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def set_callback_manager(self, callback_manager: CallbackManager) -> None:
    """设置回调管理器。"""
    self.postprocessor.callback_manager = callback_manager