优化对话转工单功能，添加重试机制以提高稳定性，限制处理会话数量为前2000个，更新示例查询和文件路径，增强代码可读性和维护性。同时新增数据库客户端功能，支持批量处理会话数据并导出至Excel。
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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from __future__ import annotations
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import json
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import os
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import re
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import configparser
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import logging
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from datetime import datetime
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from typing import Any, Dict, List, Optional, Tuple, Union
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from dataclasses import dataclass
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from contextlib import contextmanager
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import threading
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import time
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from queue import Queue, Empty, Full
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import pandas as pd
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import pymysql
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from pymysql.connections import Connection
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from pymysql.cursors import Cursor
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from tqdm import tqdm
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import concurrent.futures
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import sys
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# 配置日志
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logging.basicConfig(
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level=logging.INFO,
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format='%(asctime)s - %(name)s - %(levelname)s - %(message)s',
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handlers=[
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logging.FileHandler('./data/log/mariadb_client.log'),
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logging.StreamHandler()
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]
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)
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logger = logging.getLogger(__name__)
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os.makedirs('./data/log', exist_ok=True)
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@dataclass
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class DatabaseConfig:
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"""数据库配置类"""
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host: str = '192.168.0.123'
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port: int = 3307
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user: str = 'fuzhimei'
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password: str = 'fuzhimei@135'
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charset: str = 'utf8mb4'
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connect_timeout: int = 10
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read_timeout: int = 300
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write_timeout: int = 300
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@classmethod
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def from_config_file(cls, config_file: str = 'config.ini') -> 'DatabaseConfig':
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"""从配置文件加载配置"""
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if not os.path.exists(config_file):
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logger.warning(f"配置文件 {config_file} 不存在，使用默认配置")
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return cls()
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config = configparser.ConfigParser()
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config.read(config_file, encoding='utf-8')
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if 'database' not in config:
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logger.warning("配置文件中没有 [database] 部分，使用默认配置")
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return cls()
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db_config = config['database']
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return cls(
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host=db_config.get('host', cls.host),
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port=int(db_config.get('port', cls.port)),
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user=db_config.get('user', cls.user),
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password=db_config.get('password', cls.password),
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charset=db_config.get('charset', cls.charset),
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connect_timeout=int(db_config.get('connect_timeout', cls.connect_timeout)),
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read_timeout=int(db_config.get('read_timeout', cls.read_timeout)),
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write_timeout=int(db_config.get('write_timeout', cls.write_timeout))
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)
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class ConnectionPool:
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"""数据库连接池"""
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def __init__(self, config: DatabaseConfig, max_connections: int = 10):
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self.config = config
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self.max_connections = max_connections
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self.pool = Queue(maxsize=max_connections)
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self.active_connections = 0
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self.lock = threading.Lock()
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# 预创建一些连接
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self._initialize_pool()
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def _initialize_pool(self) -> None:
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"""初始化连接池，预创建一些连接"""
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initial_connections = min(3, self.max_connections)
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for _ in range(initial_connections):
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try:
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conn = self._create_connection()
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if conn:
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self.pool.put_nowait(conn)
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self.active_connections += 1
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except Full:
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break
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except Exception as e:
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logger.error(f"初始化连接池时创建连接失败: {e}")
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def _create_connection(self) -> Optional[Connection]:
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"""创建新的数据库连接"""
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try:
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conn = pymysql.connect(
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host=self.config.host,
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port=self.config.port,
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user=self.config.user,
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password=self.config.password,
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charset=self.config.charset,
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connect_timeout=self.config.connect_timeout,
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read_timeout=self.config.read_timeout,
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write_timeout=self.config.write_timeout,
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autocommit=True
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)
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return conn
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except Exception as e:
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logger.error(f"创建数据库连接失败: {e}")
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return None
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@contextmanager
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def get_connection(self):
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"""获取连接的上下文管理器"""
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conn = None
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try:
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# 尝试从池中获取连接
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try:
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conn = self.pool.get_nowait()
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except Empty:
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# 池中没有连接，尝试创建新连接
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with self.lock:
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if self.active_connections < self.max_connections:
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conn = self._create_connection()
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if conn:
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self.active_connections += 1
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else:
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raise Exception("无法创建新的数据库连接")
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else:
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# 等待可用连接
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logger.info("等待可用连接...")
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conn = self.pool.get(timeout=30)
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# 检查连接是否仍然有效
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if conn and not self._is_connection_alive(conn):
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logger.warning("连接已失效，重新创建")
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try:
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conn.close()
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except:
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pass
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conn = self._create_connection()
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if not conn:
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raise Exception("重新创建连接失败")
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yield conn
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except Exception as e:
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logger.error(f"获取数据库连接时出错: {e}")
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if conn:
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try:
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conn.close()
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except:
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pass
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with self.lock:
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self.active_connections -= 1
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raise
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else:
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# 归还连接到池中
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if conn:
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try:
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self.pool.put_nowait(conn)
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except Full:
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# 池已满，关闭连接
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try:
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conn.close()
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except:
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pass
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with self.lock:
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self.active_connections -= 1
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def _is_connection_alive(self, conn: Connection) -> bool:
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"""检查连接是否仍然有效"""
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try:
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conn.ping(reconnect=False)
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return True
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except:
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return False
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def close_all(self) -> None:
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"""关闭所有连接"""
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logger.info("正在关闭连接池中的所有连接...")
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while not self.pool.empty():
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try:
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conn = self.pool.get_nowait()
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conn.close()
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except (Empty, Exception):
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break
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self.active_connections = 0
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logger.info("连接池已关闭")
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class DataProcessor:
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"""数据处理器"""
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@staticmethod
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def clean_html_tags(text: str) -> str:
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"""清除文本中的HTML标签"""
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if not isinstance(text, str):
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return str(text) if text is not None else ""
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# 使用正则表达式移除HTML标签
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clean_text = re.sub(r'<[^>]+>', '', text)
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# 处理HTML实体
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html_entities = {
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' ': ' ',
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'<': '<',
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'>': '>',
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'&': '&',
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'"': '"',
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''': "'"
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}
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for entity, char in html_entities.items():
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clean_text = clean_text.replace(entity, char)
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return clean_text.strip()
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@staticmethod
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def messages_df_to_list(messages_df: pd.DataFrame) -> List[Dict[str, Any]]:
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"""将消息DataFrame转换为字典列表，使用高效的向量化操作"""
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if messages_df.empty:
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return []
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# 过滤掉系统消息
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mask = (messages_df["MODE"] != "system") & (messages_df["SYSTEM_MODE_MESSAGE_TYPE"].isna())
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filtered_df = messages_df[mask].copy()
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if filtered_df.empty:
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return []
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# 向量化操作
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filtered_df['message_sender'] = filtered_df["MODE"].map({'reply': '坐席', 'receive': '访客'}).fillna('未知')
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# 处理发送者昵称
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filtered_df['sender_nickname'] = filtered_df.apply(
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lambda row: row["AGENT_NAME"] if row["message_sender"] == "坐席" else row["CUS_NICK_NAME"],
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axis=1
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)
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# 处理内容
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def process_content(row):
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content = row["CONTENT"]
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if row["MSG_TYPE"] == "attachment":
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return f"附件：{DataProcessor.clean_html_tags(content)}"
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elif row["MSG_TYPE"] == "image":
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return f"图片：{DataProcessor.clean_html_tags(content)}"
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else:
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return content
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filtered_df['processed_content'] = filtered_df.apply(process_content, axis=1)
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# 过滤掉空昵称
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filtered_df = filtered_df[filtered_df['sender_nickname'].notna() & (filtered_df['sender_nickname'] != '')]
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# 转换为字典列表
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result = []
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for record in filtered_df.to_dict('records'):
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result.append({
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"账号id": record["ACCOUNT"],
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"会话id": record["SESSION_ID"],
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"消息内容": record["processed_content"],
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"消息发送者": record["message_sender"],
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"发送者昵称": record["sender_nickname"],
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"创建时间": record["CREATE_TIME"],
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})
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return result
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class MariaDBClient:
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"""优化后的MariaDB数据库客户端"""
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def __init__(self, config: DatabaseConfig, max_connections: int = 10):
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self.config = config
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self.connection_pool = ConnectionPool(config, max_connections)
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self.data_processor = DataProcessor()
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def __enter__(self) -> 'MariaDBClient':
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return self
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def __exit__(self, exc_type, exc_val, exc_tb) -> None:
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self.close()
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def close(self) -> None:
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"""关闭客户端"""
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self.connection_pool.close_all()
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def execute_query(self, sql: str, params: Optional[Tuple] = None) -> Tuple[Optional[pd.DataFrame], List[str]]:
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"""执行SQL查询"""
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try:
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with self.connection_pool.get_connection() as conn:
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with conn.cursor() as cursor:
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cursor.execute(sql, params)
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results = cursor.fetchall()
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# 获取列名
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column_names = [desc[0] for desc in cursor.description] if cursor.description else []
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if results:
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df = pd.DataFrame(results, columns=column_names)
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return df, column_names
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else:
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return pd.DataFrame(), column_names
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except Exception as e:
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logger.error(f"执行查询时出错: {e}")
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logger.error(f"SQL: {sql}")
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return None, []
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def query_sessions(self, start_date: str, end_date: str) -> Optional[pd.DataFrame]:
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"""查询指定日期范围内的会话数据"""
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sql = """
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SELECT ACCOUNT, BEGIN_TIME, END_TIME, CUST_SEND_MESSAGE_COUNT,
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AGENT_SEND_MESSAGE_COUNT, STATUS, CHANNEL_NAME, SESSION_ID, SESSION_TAG_NAME
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FROM crm_hlyj.crm_hlyj_dsri
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WHERE BEGIN_TIME >= %s
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AND BEGIN_TIME < %s
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AND STATUS = 'assign'
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ORDER BY BEGIN_TIME DESC
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"""
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df, _ = self.execute_query(sql, (start_date, end_date))
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return df
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def query_messages_by_session_id(self, session_id: str) -> Optional[pd.DataFrame]:
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"""根据会话ID查询消息详情"""
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sql = """
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SELECT CREATE_TIME, CUS_NICK_NAME, MODE, MSG_TYPE, AGENT_NAME, CONTENT,
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SESSION_ID, ACCOUNT, SYSTEM_MODE_MESSAGE_TYPE
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FROM crm_hlyj.crm_hlyj_dmri
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WHERE SESSION_ID = %s
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ORDER BY CREATE_TIME
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"""
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df, _ = self.execute_query(sql, (session_id,))
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return df
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def export_to_excel(self, data: List[Dict[str, Any]], filename: str, output_dir: str = "output") -> Optional[str]:
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"""导出数据到Excel文件"""
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if not data:
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logger.warning(f"没有数据可导出到 {filename}")
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return None
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try:
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# 创建输出目录
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os.makedirs(output_dir, exist_ok=True)
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# 生成文件路径
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# timestamp = datetime.now().strftime("%Y%m%d_%H%M%S")
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file_path = os.path.join(output_dir, f"{filename}.xlsx")
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# 准备数据：不同对话之间添加空行
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all_rows = []
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current_session_id = None
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for conversation in data:
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if not conversation: # 跳过空对话
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continue
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# 如果是新的会话，添加空行（除了第一个会话）
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if current_session_id and current_session_id != conversation[0]["会话id"]:
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empty_row = {key: "" for key in conversation[0].keys()}
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all_rows.append(empty_row)
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# 更新当前会话ID
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current_session_id = conversation[0]["会话id"]
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# 添加当前会话的所有消息
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all_rows.extend(conversation)
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# 创建DataFrame并导出
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if all_rows:
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df = pd.DataFrame(all_rows)
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with pd.ExcelWriter(file_path, engine='openpyxl') as writer:
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df.to_excel(writer, sheet_name='对话记录', index=False)
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logger.info(f"数据已导出到 {file_path}")
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return file_path
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else:
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logger.warning("没有有效数据可导出")
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return None
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except Exception as e:
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logger.error(f"导出到Excel时出错: {e}")
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return None
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def process_session_batch(db_client: MariaDBClient, session_batch: pd.DataFrame) -> List[List[Dict[str, Any]]]:
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"""批量处理会话数据"""
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conversations = []
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for _, session_row in session_batch.iterrows():
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try:
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session_id = session_row['SESSION_ID']
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messages_df = db_client.query_messages_by_session_id(session_id)
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if messages_df is not None and not messages_df.empty:
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conversation = db_client.data_processor.messages_df_to_list(messages_df)
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if conversation:
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conversations.append(conversation)
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except Exception as e:
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logger.error(f"处理会话 {session_row.get('SESSION_ID', 'unknown')} 时出错: {e}")
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continue
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return conversations
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class SessionProcessor:
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"""会话处理器，负责批量和并发处理"""
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def __init__(self, db_client: MariaDBClient, max_workers: int = None, batch_size: int = 50):
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self.db_client = db_client
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self.max_workers = max_workers if max_workers is not None else os.cpu_count()
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self.batch_size = batch_size
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self.temp_save_lock = threading.Lock() # 添加锁用于保护临时保存操作
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logger.info(f"初始化会话处理器: max_workers={self.max_workers}, batch_size={self.batch_size}")
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def process_sessions(self, sessions_df: pd.DataFrame) -> List[List[Dict[str, Any]]]:
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"""处理所有会话数据"""
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if sessions_df.empty:
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logger.warning("没有会话数据需要处理")
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return []
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total_sessions = len(sessions_df)
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logger.info(f"开始处理 {total_sessions} 个会话...")
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# 分批处理
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all_conversations = []
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batch_count = (total_sessions + self.batch_size - 1) // self.batch_size
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# 使用线程池处理批次
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with concurrent.futures.ThreadPoolExecutor(max_workers=self.max_workers) as executor:
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# 提交所有批次任务
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future_to_batch = {}
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for i in range(0, total_sessions, self.batch_size):
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batch = sessions_df.iloc[i:i + self.batch_size]
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future = executor.submit(process_session_batch, self.db_client, batch)
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future_to_batch[future] = i // self.batch_size + 1
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# 收集结果
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with tqdm(total=batch_count, desc="处理批次进度") as pbar:
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for future in concurrent.futures.as_completed(future_to_batch):
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try:
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batch_conversations = future.result()
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all_conversations.extend(batch_conversations)
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|
||||
# 使用锁保护临时列表的操作
|
||||
with self.temp_save_lock:
|
||||
# 每处理100个对话临时保存一次
|
||||
logger.info(f"临时保存 {len(all_conversations)} 个对话")
|
||||
temp_output_file = self.db_client.export_to_excel(
|
||||
all_conversations,
|
||||
f"客服对话记录_临时保存",
|
||||
output_dir="/data/QueryRewrite/data/excel"
|
||||
)
|
||||
if temp_output_file:
|
||||
logger.info(f"临时保存完成: {temp_output_file}")
|
||||
|
||||
batch_num = future_to_batch[future]
|
||||
logger.debug(f"批次 {batch_num} 完成，获得 {len(batch_conversations)} 个对话")
|
||||
|
||||
except Exception as e:
|
||||
batch_num = future_to_batch[future]
|
||||
logger.error(f"处理批次 {batch_num} 时出错: {e}")
|
||||
|
||||
pbar.update(1)
|
||||
|
||||
logger.info(f"处理完成，共获得 {len(all_conversations)} 个有效对话")
|
||||
return all_conversations
|
||||
|
||||
|
||||
def main() -> None:
|
||||
"""主函数"""
|
||||
try:
|
||||
# 加载配置
|
||||
config = DatabaseConfig.from_config_file()
|
||||
logger.info(f"使用数据库配置: {config.host}:{config.port}")
|
||||
|
||||
# 创建数据库客户端
|
||||
with MariaDBClient(config, max_connections=12) as db_client:
|
||||
# 查询会话数据
|
||||
start_date = '2025-01-01 00:00:00'
|
||||
end_date = '2025-06-12 00:00:00'
|
||||
|
||||
logger.info(f"查询时间范围: {start_date} 到 {end_date}")
|
||||
# 创建会话处理器
|
||||
processor = SessionProcessor(db_client, batch_size=100)
|
||||
is_debug = hasattr(sys, 'gettrace') and sys.gettrace() is not None
|
||||
if is_debug:
|
||||
messages_df = db_client.query_messages_by_session_id("86c919e0-09f1-11f0-84ae-2daf59566989")
|
||||
print(db_client.data_processor.messages_df_to_list(messages_df))
|
||||
return []
|
||||
|
||||
sessions_df = db_client.query_sessions(start_date, end_date)
|
||||
|
||||
if sessions_df is None or sessions_df.empty:
|
||||
logger.warning("没有找到符合条件的会话数据")
|
||||
return
|
||||
|
||||
# 处理会话数据
|
||||
all_conversations = processor.process_sessions(sessions_df)
|
||||
# 导出结果
|
||||
if all_conversations:
|
||||
output_file = db_client.export_to_excel(
|
||||
all_conversations,
|
||||
"客服对话记录",
|
||||
output_dir="/data/QueryRewrite/data/excel"
|
||||
)
|
||||
|
||||
if output_file:
|
||||
logger.info(f"处理完成！共导出 {len(all_conversations)} 个对话到文件: {output_file}")
|
||||
else:
|
||||
logger.error("导出文件失败")
|
||||
else:
|
||||
logger.warning("没有有效的对话数据可导出")
|
||||
|
||||
except KeyboardInterrupt:
|
||||
logger.info("用户中断程序")
|
||||
except Exception as e:
|
||||
logger.error(f"程序执行出错: {e}", exc_info=True)
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
main()
|
||||
Reference in New Issue
Block a user