ragflow/agent/component/template.py

#
#  Copyright 2024 The InfiniFlow Authors. All Rights Reserved.
#
#  Licensed under the Apache License, Version 2.0 (the "License");
#  you may not use this file except in compliance with the License.
#  You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
#  Unless required by applicable law or agreed to in writing, software
#  distributed under the License is distributed on an "AS IS" BASIS,
#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#  See the License for the specific language governing permissions and
#  limitations under the License.
#
import re
from agent.component.base import ComponentBase, ComponentParamBase


class TemplateParam(ComponentParamBase):
    """
    Define the Generate component parameters.
    """

    def __init__(self):
        super().__init__()
        self.content = ""
        self.parameters = []

    def check(self):
        self.check_empty(self.content, "[Template] Content")
        return True


class Template(ComponentBase):
    component_name = "Template"

    def get_dependent_components(self):
        cpnts = set([para["component_id"].split("@")[0] for para in self._param.parameters \
                     if para.get("component_id") \
                     and para["component_id"].lower().find("answer") < 0 \
                     and para["component_id"].lower().find("begin") < 0])
        return list(cpnts)

    def _run(self, history, **kwargs):
        content = self._param.content

        self._param.inputs = []
        for para in self._param.parameters:
            if not para.get("component_id"):
                continue
            component_id = para["component_id"].split("@")[0]
            if para["component_id"].lower().find("@") >= 0:
                cpn_id, key = para["component_id"].split("@")
                for p in self._canvas.get_component(cpn_id)["obj"]._param.query:
                    if p["key"] == key:
                        kwargs[para["key"]] = p.get("value", "")
                        self._param.inputs.append(
                            {"component_id": para["component_id"], "content": kwargs[para["key"]]})
                        break
                else:
                    assert False, f"Can't find parameter '{key}' for {cpn_id}"
                continue

            cpn = self._canvas.get_component(component_id)["obj"]
            if cpn.component_name.lower() == "answer":
                hist = self._canvas.get_history(1)
                if hist:
                    hist = hist[0]["content"]
                else:
                    hist = ""
                kwargs[para["key"]] = hist
                continue

            _, out = cpn.output(allow_partial=False)
            if "content" not in out.columns:
                kwargs[para["key"]] = ""
            else:
                kwargs[para["key"]] = "  - "+"\n - ".join([o if isinstance(o, str) else str(o) for o in out["content"]])
            self._param.inputs.append({"component_id": para["component_id"], "content": kwargs[para["key"]]})

        for n, v in kwargs.items():
            content = re.sub(r"\{%s\}" % re.escape(n), str(v).replace("\\", " "), content)

        return Template.be_output(content)