gopidesupavan commented on code in PR #61794: URL: https://github.com/apache/airflow/pull/61794#discussion_r2819486844
########## providers/common/ai/src/airflow/providers/common/ai/hooks/pydantic_ai.py: ########## @@ -0,0 +1,114 @@ +# Licensed to the Apache Software Foundation (ASF) under one +# or more contributor license agreements. See the NOTICE file +# distributed with this work for additional information +# regarding copyright ownership. The ASF licenses this file +# to you 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. +from __future__ import annotations + +import json +from functools import cached_property +from typing import TYPE_CHECKING, Any + +from airflow.providers.common.ai.exceptions import ModelCreationError +from airflow.providers.common.ai.llm_providers.model_providers import ModelProviderFactory +from airflow.sdk import BaseHook, Connection + +if TYPE_CHECKING: + from pydantic_ai.models import Model + + from airflow.providers.common.ai.llm_providers.base import ModelProvider + from airflow.providers.common.sql.hooks.sql import DbApiHook + + +class PydanticAIHook(BaseHook): + """Hook for Pydantic AI.""" + + _model_provider_factory: ModelProviderFactory | None = None + + conn_name_attr = "pydantic_ai_conn_id" + default_conn_name = "pydantic_ai_default" + conn_type = "pydantic_ai" + hook_name = "PydanticAI" + + def __init__( + self, pydantic_ai_conn_id: str = default_conn_name, provider_model: str | None = None, **kwargs + ) -> None: + super().__init__(**kwargs) + self.provider_model = provider_model + self.pydantic_ai_conn_id = pydantic_ai_conn_id + self._api_key: str | None = None + self.connection: Connection | None = None + + @classmethod + def get_ui_field_behaviour(cls) -> dict[str, Any]: + return { + "hidden_fields": ["schema"], + "relabeling": { + "password": "API Key", + }, + "placeholders": { + "extra": json.dumps( + { + "provider_model": "", + "model_settings": {}, + } + ) + }, + } + + def get_conn(self) -> Connection: + if self.connection is None: + self.connection = self.get_connection(self.pydantic_ai_conn_id) + return self.connection + + def get_provider_model_name_from_conn(self): + return self.get_conn().extra_dejson.get("provider_model") + + @cached_property + def get_api_key_from_conn(self): + return self.get_conn().password + + @classmethod + def get_provider_model_factory(cls): + if cls._model_provider_factory is None: + cls._model_provider_factory = ModelProviderFactory() + return cls._model_provider_factory + + @classmethod + def register_model_provider(cls, provider: ModelProvider): + cls.get_provider_model_factory().register_model_provider(provider) + + def get_model(self, **kwargs) -> Model: + try: + provider_model_name = self.provider_model or self.get_provider_model_name_from_conn() + if not provider_model_name: + raise ValueError("No provider model name provided") + provider_name, model_name = self.get_provider_model_factory().parse_model_provider_name( + provider_model_name + ) + + settings = self.get_conn().extra_dejson.get("model_settings") + if settings: + kwargs["model_settings"] = settings + return self._model_provider_factory.get_model_provider(provider_name).build_model( + model_name, api_key=self.get_api_key_from_conn, **kwargs + ) + except Exception as e: + raise ModelCreationError(f"Error building model: {e}") + + @staticmethod Review Comment: updated with mixin -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
