218 lines
7.5 KiB
Python
218 lines
7.5 KiB
Python
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"""
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设备操作记录服务
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负责保存和管理设备操作记录
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"""
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import logging
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import time
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import random
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import json
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from typing import Dict, Any, Optional, List
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from datetime import datetime
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from database import insert, query, DatabaseConnectionError
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logger = logging.getLogger(__name__)
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class DeviceOperationService:
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"""设备操作记录服务类"""
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@staticmethod
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def save_operation_record(operation_record: Dict[str, Any]) -> bool:
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"""
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保存设备操作记录到数据库
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Args:
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operation_record: 操作记录字典，包含以下字段：
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- system_user_id: int
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- context_id: Optional[str]
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- device_type: str
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- device_name: Optional[str]
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- action: str
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- parameters: Optional[Dict]
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- success: bool
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- response: Optional[str]
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- error_message: Optional[str]
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- execution_time: Optional[int]
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- timestamp: str (ISO格式)
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Returns:
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bool: 保存是否成功
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"""
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try:
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# 生成操作ID
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op_id = int(time.time() * 1000000) + random.randint(1000, 9999)
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# 提取字段
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system_user_id = operation_record.get('system_user_id', 1000000001)
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context_id = operation_record.get('context_id')
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device_type = operation_record.get('device_type')
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device_name = operation_record.get('device_name')
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action = operation_record.get('action')
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parameters = operation_record.get('parameters')
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success = operation_record.get('success', False)
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response = operation_record.get('response')
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error_message = operation_record.get('error_message')
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execution_time = operation_record.get('execution_time')
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# 转换参数为JSON
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parameters_json = json.dumps(parameters, ensure_ascii=False) if parameters else None
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# SQL插入语句
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sql = """
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INSERT INTO device_operations
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(id, system_user_id, context_id, device_type, device_name, action,
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parameters, success, response, error_message, execution_time, created_at)
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VALUES (%s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, NOW())
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"""
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params = (
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op_id,
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system_user_id,
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context_id,
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device_type,
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device_name,
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action,
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parameters_json,
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success,
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response[:1000] if response else None, # 限制长度
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error_message[:500] if error_message else None, # 限制长度
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execution_time
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)
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# 执行插入
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insert(sql, params)
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status_emoji = "✅" if success else "❌"
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logger.info(
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f"{status_emoji} 保存设备操作记录: user={system_user_id}, "
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f"device={device_type}, action={action}, success={success}"
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)
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return True
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except DatabaseConnectionError as e:
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logger.error(f"❌ 数据库连接失败，无法保存操作记录: {e}")
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return False
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except Exception as e:
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logger.error(f"❌ 保存设备操作记录失败: {e}", exc_info=True)
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return False
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@staticmethod
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def get_recent_operations(
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system_user_id: int,
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limit: int = 50,
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device_type: Optional[str] = None
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) -> List[Dict[str, Any]]:
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"""
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获取最近的操作记录
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Args:
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system_user_id: 用户ID
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limit: 返回记录数量限制
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device_type: 可选，过滤设备类型
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Returns:
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操作记录列表
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"""
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try:
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if device_type:
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sql = """
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SELECT * FROM device_operations
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WHERE system_user_id = %s AND device_type = %s
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ORDER BY created_at DESC
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LIMIT %s
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"""
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params = (system_user_id, device_type, limit)
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else:
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sql = """
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SELECT * FROM device_operations
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WHERE system_user_id = %s
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ORDER BY created_at DESC
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LIMIT %s
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"""
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params = (system_user_id, limit)
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results = query(sql, params)
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# 转换时间戳为字符串
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for record in results:
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if 'created_at' in record and isinstance(record['created_at'], datetime):
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record['created_at'] = record['created_at'].isoformat()
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# 解析parameters JSON
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if 'parameters' in record and record['parameters']:
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try:
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record['parameters'] = json.loads(record['parameters'])
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except:
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pass
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return results
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except Exception as e:
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logger.error(f"❌ 查询操作记录失败: {e}")
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return []
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@staticmethod
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def get_operation_statistics(
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system_user_id: int,
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days: int = 7
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) -> Dict[str, Any]:
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"""
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获取操作统计信息
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Args:
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system_user_id: 用户ID
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days: 统计最近多少天
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Returns:
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统计信息字典
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"""
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try:
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sql = """
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SELECT
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device_type,
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COUNT(*) as total_count,
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SUM(CASE WHEN success = TRUE THEN 1 ELSE 0 END) as success_count,
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SUM(CASE WHEN success = FALSE THEN 1 ELSE 0 END) as failure_count,
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AVG(execution_time) as avg_execution_time
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FROM device_operations
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WHERE system_user_id = %s
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AND created_at >= DATE_SUB(NOW(), INTERVAL %s DAY)
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GROUP BY device_type
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"""
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results = query(sql, (system_user_id, days))
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# 转换结果
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statistics = {
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"period_days": days,
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"devices": {}
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}
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for row in results:
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device_type = row['device_type']
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statistics["devices"][device_type] = {
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"total": int(row['total_count']),
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"success": int(row['success_count']),
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"failure": int(row['failure_count']),
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"success_rate": round(row['success_count'] / row['total_count'] * 100, 2) if row['total_count'] > 0 else 0,
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"avg_execution_time_ms": round(float(row['avg_execution_time']), 2) if row['avg_execution_time'] else 0
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}
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return statistics
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except Exception as e:
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logger.error(f"❌ 查询操作统计失败: {e}")
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return {"error": str(e)}
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# 全局服务实例
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_device_operation_service = None
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def get_device_operation_service() -> DeviceOperationService:
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"""获取设备操作服务单例"""
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global _device_operation_service
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if _device_operation_service is None:
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_device_operation_service = DeviceOperationService()
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return _device_operation_service
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