feat: integrate RAG rag_jrxml submodule and fix Anthropic API key
Add rag submodule for semantic JRXML chunk retrieval, refactor retrieve node to use RAGSearcher, and fix missing api_key in Anthropic SDK client initialization. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
This commit is contained in:
@@ -22,6 +22,26 @@ VALIDATION_SERVICE_URL=http://localhost:8001/validate
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# Chroma 持久化目录
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CHROMA_PERSIST_DIR=./db/chroma
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# ---- RAG / 向量知识库 (rag_jrxml 子模块) ----
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# 嵌入模型
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RAG_EMBED_MODEL=sentence-transformers/paraphrase-multilingual-MiniLM-L12-v2
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# JRXML 模板源目录 (rag 子模块内已含 107 个模板)
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RAG_JRXML_SOURCE=./rag/jrxml_source
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# 分块输出目录
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RAG_CHUNKER_OUTPUT=./rag/jrxml_chunker_output
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# 向量输出目录
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RAG_EMBEDDINGS_DIR=./rag/embeddings
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# ChromaDB 知识库路径
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RAG_CHROMA_PATH=./db/chroma
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# ChromaDB 集合名称
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RAG_COLLECTION_NAME=jrxml_chunks
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# GPU 加速
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RAG_USE_GPU=true
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# FP16 半精度
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RAG_USE_FP16=true
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# 向量化批处理大小
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RAG_BATCH_SIZE=64
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# 最大自动修正尝试次数
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MAX_RETRY=3
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@@ -12,6 +12,14 @@ dist/
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db/chroma/
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sessions/
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# RAG 管线中间产物 (rag 子模块内)
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rag/jrxml_chunker_output/
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rag/embeddings/
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rag/models/
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rag/__pycache__/
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rag/chroma_db/
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rag/jrxml_source_chunks/
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# IDE
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.idea/
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.vscode/
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@@ -0,0 +1,3 @@
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[submodule "rag"]
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path = rag
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url = http://www.1415243231.top:8418/panda/rag_jrxml.git
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+4
-18
@@ -10,7 +10,6 @@ from typing import Dict
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from dotenv import load_dotenv
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from agent.state import AgentState
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from backend.embeddings import get_embeddings
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from backend.llm import get_llm
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from backend.validation import validate_jrxml
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@@ -422,26 +421,13 @@ def _now_iso() -> str:
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def retrieve(state: AgentState) -> Dict:
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"""在 Chroma 中搜索相关的 JRXML 模板和组件。"""
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"""在 Chroma 中搜索相关的 JRXML 模板和组件（使用 rag_jrxml 语义分块管线）。"""
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try:
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embeddings = get_embeddings()
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from langchain_chroma import Chroma
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from backend.rag_adapter import search_chunks
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persist_dir = os.getenv("CHROMA_PERSIST_DIR", "./db/chroma")
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if not os.path.exists(persist_dir) or not os.listdir(persist_dir):
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state["retrieved_context"] = ""
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return state
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vectorstore = Chroma(
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embedding_function=embeddings,
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persist_directory=persist_dir,
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)
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user_input = state.get("user_input", "")
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docs = vectorstore.similarity_search(user_input, k=5)
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context_parts = []
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for d in docs:
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context_parts.append(d.page_content)
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state["retrieved_context"] = "\n\n---\n\n".join(context_parts)
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context = search_chunks(user_input, k=5)
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state["retrieved_context"] = context
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except Exception:
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state["retrieved_context"] = ""
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return state
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+24
-2
@@ -1,4 +1,9 @@
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"""嵌入模型工厂：支持本地 sentence-transformers 和云端 API。"""
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"""嵌入模型工厂：支持本地 Sentence-Transformers 和云端 API。
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调用方式:
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get_embeddings() → LangChain 兼容的 embeddings 对象
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get_st_embeddings() → 原始 SentenceTransformer 实例
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"""
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import os
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from dotenv import load_dotenv
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@@ -7,6 +12,7 @@ load_dotenv()
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def get_embeddings():
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"""返回 LangChain 兼容的 embeddings 对象（用于 langchain_chroma 等）。"""
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backend = os.getenv("EMBED_BACKEND", "local")
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if backend == "cloud":
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from langchain_openai import OpenAIEmbeddings
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@@ -22,5 +28,21 @@ def get_embeddings():
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except ImportError:
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from langchain_community.embeddings import HuggingFaceEmbeddings
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model = os.getenv("LOCAL_EMBED_MODEL", "Qwen/Qwen3-Embedding-0.6B")
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model = os.getenv("RAG_EMBED_MODEL", os.getenv("LOCAL_EMBED_MODEL", "Qwen/Qwen3-Embedding-0.6B"))
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return HuggingFaceEmbeddings(model_name=model)
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def get_st_model():
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"""返回原始 SentenceTransformer 实例（与 rag_jrxml 子模块使用方式一致）。"""
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import torch
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from sentence_transformers import SentenceTransformer
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model_name = os.getenv("RAG_EMBED_MODEL", os.getenv("LOCAL_EMBED_MODEL", "Qwen/Qwen3-Embedding-0.6B"))
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use_gpu = os.getenv("RAG_USE_GPU", "true").lower() in ("true", "1")
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use_fp16 = os.getenv("RAG_USE_FP16", "true").lower() in ("true", "1")
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device = "cuda" if (use_gpu and torch.cuda.is_available()) else "cpu"
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model = SentenceTransformer(model_name, device=device)
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if device == "cuda" and use_fp16:
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model = model.half()
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return model
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+1
-1
@@ -28,7 +28,7 @@ def get_llm():
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os.environ["NO_PROXY"] = "*"
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client = Anthropic(base_url=base_url, timeout=120)
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client = Anthropic(api_key=api_key, base_url=base_url, timeout=120)
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class MiniMaxLLM:
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def invoke(self, prompt: str) -> Any:
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@@ -0,0 +1,155 @@
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"""RAG 适配层 — 查询已由 rag_jrxml 子项目构建好的 ChromaDB 向量知识库。
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rag_jrxml 独立运行产出向量库后，主项目通过此模块进行语义搜索。
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用法:
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from backend.rag_adapter import search_chunks
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context = search_chunks("如何添加饼图", k=5)
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"""
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import os
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import logging
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from pathlib import Path
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from typing import Optional
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from dotenv import load_dotenv
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load_dotenv()
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logger = logging.getLogger(__name__)
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_PROJECT_ROOT = Path(__file__).resolve().parent.parent
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def _resolve(path: str) -> Path:
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p = Path(path)
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if not p.is_absolute():
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p = _PROJECT_ROOT / p
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return p
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class RAGSearcher:
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"""连接预构建的 ChromaDB，提供语义搜索。"""
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def __init__(
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self,
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chroma_path: Optional[str] = None,
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collection_name: Optional[str] = None,
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model_name: Optional[str] = None,
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use_gpu: Optional[bool] = None,
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use_fp16: Optional[bool] = None,
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):
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self.chroma_path = _resolve(chroma_path or os.getenv("RAG_CHROMA_PATH", "./db/chroma"))
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self.collection_name = collection_name or os.getenv("RAG_COLLECTION_NAME", "jrxml_chunks")
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model_path = model_name or os.getenv("RAG_EMBED_MODEL", "./rag/models/paraphrase-multilingual-MiniLM-L12-v2")
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# 如果本地路径存在则使用本地，否则当 Hub 模型名使用
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resolved = _resolve(model_path)
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self.model_name = str(resolved) if resolved.exists() else model_path
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self.use_gpu = use_gpu if use_gpu is not None else os.getenv("RAG_USE_GPU", "true").lower() in ("true", "1")
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self.use_fp16 = use_fp16 if use_fp16 is not None else os.getenv("RAG_USE_FP16", "true").lower() in ("true", "1")
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self._model = None
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self._client = None
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self._collection = None
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# ---- 模型懒加载 ----
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@property
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def model(self):
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if self._model is None:
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import torch
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from sentence_transformers import SentenceTransformer
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device = "cuda" if (self.use_gpu and torch.cuda.is_available()) else "cpu"
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logger.info("加载嵌入模型: %s (device=%s)", self.model_name, device)
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model = SentenceTransformer(self.model_name, device=device)
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if device == "cuda" and self.use_fp16:
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model = model.half()
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self._model = model
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return self._model
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# ---- ChromaDB 懒连接 ----
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@property
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def client(self):
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if self._client is None:
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import chromadb
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self._client = chromadb.PersistentClient(path=str(self.chroma_path))
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return self._client
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@property
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def collection(self):
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if self._collection is None:
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self._collection = self.client.get_collection(self.collection_name)
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return self._collection
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def is_ready(self) -> bool:
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try:
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self.client.get_collection(self.collection_name)
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return True
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except Exception:
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return False
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# ---- 语义搜索 ----
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def search(self, query: str, k: int = 5, threshold: Optional[float] = None) -> list[dict]:
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"""搜索相关 JRXML chunks，返回 [{id, content, metadata, distance}, ...]."""
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if not self.is_ready():
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logger.warning("ChromaDB 集合 '%s' 不存在，请先在 rag/ 子项目中运行管线", self.collection_name)
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return []
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query_embedding = self.model.encode(
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query, normalize_embeddings=True, show_progress_bar=False
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)
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results = self.collection.query(
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query_embeddings=[query_embedding.tolist()],
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n_results=k,
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include=["documents", "metadatas", "distances"],
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)
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output = []
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if not results["ids"] or not results["ids"][0]:
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return output
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for i, doc_id in enumerate(results["ids"][0]):
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dist = results["distances"][0][i]
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if threshold is not None and dist > threshold:
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continue
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output.append({
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"id": doc_id,
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"content": results["documents"][0][i],
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"metadata": results["metadatas"][0][i],
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"distance": dist,
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})
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return output
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def search_as_context(self, query: str, k: int = 5) -> str:
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"""搜索并返回拼接好的上下文字符串，可直接注入 LLM prompt。"""
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results = self.search(query, k=k)
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if not results:
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return ""
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parts = []
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for r in results:
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meta = r["metadata"]
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header = f"[类型:{meta.get('chunk_type', 'N/A')}]"
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if meta.get("report_name"):
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header += f" [报表:{meta['report_name']}]"
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if meta.get("band_name"):
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header += f" [区域:{meta['band_name']}]"
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parts.append(f"{header}\n{r['content']}")
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return "\n\n---\n\n".join(parts)
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# 全局单例，避免重复加载模型
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_searcher: Optional[RAGSearcher] = None
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def _get_searcher() -> RAGSearcher:
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global _searcher
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if _searcher is None:
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_searcher = RAGSearcher()
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return _searcher
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def search_chunks(query: str, k: int = 5) -> str:
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"""搜索 JRXML 知识库并返回拼接后的上下文文本（便捷函数）。"""
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return _get_searcher().search_as_context(query, k=k)
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Submodule
+1
Submodule rag added at 687b3a8f90
@@ -17,6 +17,9 @@ lxml>=5.3.0
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# 嵌入模型（本地）
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sentence-transformers>=3.0.0
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torch>=2.0.0
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huggingface_hub>=0.19.0
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tqdm>=4.65.0
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# 工具类
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python-dotenv>=1.0.0
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+29
-94
@@ -1,120 +1,55 @@
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"""初始化 Chroma 知识库，加载示例 JRXML 模板和错误修正案例。
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"""初始化 JRXML 向量知识库。
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用法: python scripts/init_kb.py
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rag_jrxml 子项目独立运行管线（分块→向量化→导入），本脚本仅用于预下载嵌入模型。
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用法:
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python scripts/init_kb.py --download-model # 预下载嵌入模型
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"""
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import os
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import sys
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import argparse
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from pathlib import Path
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from dotenv import load_dotenv
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sys.path.insert(0, str(Path(__file__).parent.parent))
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load_dotenv()
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def download_embeddings_model():
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"""预下载 Qwen3-Embedding 模型（从 HuggingFace）。
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用法: python scripts/init_kb.py --download-model
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"""
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model_name = os.getenv("LOCAL_EMBED_MODEL", "Qwen/Qwen3-Embedding-0.6B")
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def download_model():
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"""预下载嵌入模型到本地。"""
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model_name = os.getenv("RAG_EMBED_MODEL", "Qwen/Qwen3-Embedding-0.6B")
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print(f"正在下载嵌入模型: {model_name}")
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print("如遇网络超时，可手动执行以下命令后重试:")
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print(f" huggingface-cli download {model_name} --local-dir ./models/{model_name.replace('/', '_')}")
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print("如遇网络超时，可设置环境变量 HF_ENDPOINT=https://hf-mirror.com 使用镜像")
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print()
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try:
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from langchain_huggingface import HuggingFaceEmbeddings
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except ImportError:
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print("错误: 请先安装 huggingface 依赖")
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print(" pip install langchain-huggingface sentence-transformers")
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return
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from sentence_transformers import SentenceTransformer
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# HuggingFaceEmbeddings 会在首次调用时自动下载模型
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embeddings = HuggingFaceEmbeddings(model_name=model_name)
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# 调用一次以确保完全下载
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embeddings.embed_query("测试")
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model = SentenceTransformer(model_name)
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model.encode("测试下载")
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print(f"嵌入模型下载完成: {model_name}")
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from backend.embeddings import get_embeddings
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def load_templates(template_dir: Path) -> list[dict]:
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docs = []
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for fpath in template_dir.glob('*.jrxml'):
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content = fpath.read_text(encoding='utf-8')
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name = fpath.stem
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docs.append({
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'content': content,
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'metadata': {
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'source': str(fpath),
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'type': 'full_report',
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'name': name,
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},
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})
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return docs
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def load_corrections(corrections_dir: Path) -> list[dict]:
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docs = []
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for fpath in corrections_dir.glob('*.jrxml'):
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content = fpath.read_text(encoding='utf-8')
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docs.append({
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'content': content,
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'metadata': {
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'source': str(fpath),
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'type': 'correction_case',
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'name': fpath.stem,
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},
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})
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return docs
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def main():
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persist_dir = os.getenv('CHROMA_PERSIST_DIR', './db/chroma')
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data_dir = Path(__file__).parent.parent / 'data'
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template_dir = data_dir / 'sample_templates'
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corrections_dir = data_dir / 'corrections'
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docs = []
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if template_dir.exists():
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docs.extend(load_templates(template_dir))
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print(f'从 {template_dir} 加载了 {len(docs)} 个模板')
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if corrections_dir.exists():
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corr = load_corrections(corrections_dir)
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docs.extend(corr)
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print(f'从 {corrections_dir} 加载了 {len(corr)} 个修正案例')
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if not docs:
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print('未找到文档，无需索引。')
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return
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embeddings = get_embeddings()
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from langchain_chroma import Chroma
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texts = [d['content'] for d in docs]
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metadatas = [d['metadata'] for d in docs]
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Chroma.from_texts(
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texts=texts,
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embedding=embeddings,
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metadatas=metadatas,
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persist_directory=persist_dir,
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parser = argparse.ArgumentParser(description="JRXML 向量知识库工具")
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parser.add_argument(
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"--download-model", action="store_true",
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help="预下载嵌入模型到本地"
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)
|
||||
print(f'已将 {len(docs)} 个文档索引到 Chroma，存储位置: {persist_dir}')
|
||||
|
||||
|
||||
if __name__ == '__main__':
|
||||
import argparse
|
||||
parser = argparse.ArgumentParser(description='初始化 Chroma 知识库')
|
||||
parser.add_argument('--download-model', action='store_true', help='仅下载嵌入模型到本地')
|
||||
args = parser.parse_args()
|
||||
|
||||
if args.download_model:
|
||||
download_embeddings_model()
|
||||
download_model()
|
||||
else:
|
||||
main()
|
||||
print("用法: python scripts/init_kb.py --download-model")
|
||||
print()
|
||||
print("知识库构建请在 rag/ 子项目中独立运行:")
|
||||
print(" cd rag")
|
||||
print(" python batch_chunker.py jrxml_source")
|
||||
print(" python embed_chunks.py")
|
||||
print(" python import_to_chroma.py")
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
main()
|
||||
|
||||
Reference in New Issue
Block a user