新增异步意图识别器和相关功能，优化意图识别和槽位填充逻辑，支持异步处理和多线程检索，改进API调用的错误处理和日志记录，增强文档检索和关键词提取功能。

rag2_0/demo/intent_recognition_example.py

@@ -15,12 +15,13 @@ import concurrent.futures
 from tqdm import tqdm
 import time
 import sys
+import asyncio
 import argparse
 from typing import List, Dict, Any
 from langchain.output_parsers import PydanticOutputParser
 from pydantic import BaseModel, Field
 sys.path.append(os.getcwd())
-from rag2_0.intent_recognition import IntentRecognizer
+from rag2_0.intent_recognition import IntentRecognizer, AsyncIntentRecognizer
 from rag2_0.dify.DifyQueryRetrieval import DifyQueryRetrieval
 from rag2_0.intent_recognition.DataModels import Classification
 from rag2_0.tool.ModelTool import OpenAiLLM
@@ -79,6 +80,12 @@ class QueryRewriteProcessor:
         self.model_name = model_name or os.getenv("LLM_MODEL_NAME", "gpt-3.5-turbo")
         
         self.recognizer = IntentRecognizer(api_key=self.api_key, base_url=self.base_url, model_name=self.model_name)
+        # 使用asyncio.run()运行异步create方法
+        self.recognizer_async = asyncio.run(AsyncIntentRecognizer.create(
+            api_key=self.api_key, 
+            base_url=self.base_url, 
+            model_name=self.model_name
+        ))
         self.dify_query_retrieval = DifyQueryRetrieval(api_key=dify_api_key, base_url=dify_base_url)
     
     def is_retrieved_doc_relevant(self, query: str, retrieved_doc: List[Dict[str, Any]]) -> Dict[str, Any]:
@@ -168,7 +175,11 @@ class QueryRewriteProcessor:
             logging.error(f"读取Excel文件时出错: {e}", exc_info=True)
             return []
     
-    def process_query(self, query: str, conversation_context: str = "", chat_history: List[Dict[str, str]] = None, previous_slots: Dict[str, str] = None, enable_retrieval: bool = False):
+    def process_query(self, query: str, 
+                      conversation_context: str = "", 
+                      chat_history: List[Dict[str, str]] = None, 
+                      previous_slots: Dict[str, str] = None, 
+                      enable_retrieval: bool = False):
         """
         处理单个查询，支持重试机制，并包含槽位填充