28 lines
1014 B
Python
28 lines
1014 B
Python
# app/rag_initializer.py
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from app.rag.tools import create_rag_tool
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from app.rag.retriever import create_parent_hybrid_retriever
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from app.model_services import get_embedding_service
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from app.logger import info, warning
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async def init_rag_tool(local_llm_creator):
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"""初始化 RAG 工具，失败返回 None"""
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try:
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info("🔄 正在初始化 RAG 检索系统...")
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# 使用统一的嵌入服务获取接口
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embeddings = get_embedding_service()
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retriever = create_parent_hybrid_retriever(
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collection_name="rag_documents",
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search_k=5,
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embeddings=embeddings
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)
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rewrite_llm = local_llm_creator()
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rag_tool = create_rag_tool(
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retriever, rewrite_llm,
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num_queries=3, rerank_top_n=5
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)
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info("✅ RAG 检索工具初始化成功（全异步版本）")
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return rag_tool
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except Exception as e:
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warning(f"⚠️ RAG 检索工具初始化失败: {e}")
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return None
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