|
| 1 | +"""请求日志服务. |
| 2 | +
|
| 3 | +提供请求日志的创建、更新和查询功能。 |
| 4 | +""" |
| 5 | + |
| 6 | +import uuid |
| 7 | +from datetime import datetime |
| 8 | +from typing import Optional |
| 9 | + |
| 10 | +from sqlalchemy import select |
| 11 | +from sqlalchemy.ext.asyncio import AsyncSession |
| 12 | + |
| 13 | +from ..dependencies import get_logger |
| 14 | +from ..models.db_models import RequestLog |
| 15 | + |
| 16 | +logger = get_logger(__name__) |
| 17 | + |
| 18 | + |
| 19 | +class RequestLogService: |
| 20 | + """请求日志服务类.""" |
| 21 | + @staticmethod |
| 22 | + def generate_request_id() -> str: |
| 23 | + """生成唯一的请求ID.""" |
| 24 | + return str(uuid.uuid4()) |
| 25 | + |
| 26 | + @staticmethod |
| 27 | + async def create_log( |
| 28 | + session: Optional[AsyncSession], |
| 29 | + request_id: str, |
| 30 | + input_type: str, |
| 31 | + input_html: Optional[str] = None, |
| 32 | + url: Optional[str] = None, |
| 33 | + ) -> Optional[RequestLog]: |
| 34 | + """创建请求日志记录. |
| 35 | +
|
| 36 | + Args: |
| 37 | + session: 数据库会话 |
| 38 | + request_id: 请求ID |
| 39 | + input_type: 输入类型 (html_content, url, file) |
| 40 | + input_html: 输入HTML内容 |
| 41 | + url: URL地址 |
| 42 | + Returns: |
| 43 | + 创建的日志记录，如果数据库未配置则返回 None |
| 44 | + """ |
| 45 | + if session is None: |
| 46 | + logger.debug("数据库会话为空，跳过日志记录") |
| 47 | + return None |
| 48 | + try: |
| 49 | + log = RequestLog( |
| 50 | + request_id=request_id, |
| 51 | + input_type=input_type, |
| 52 | + input_html=input_html, |
| 53 | + url=url, |
| 54 | + status='processing', |
| 55 | + created_at=datetime.now(), |
| 56 | + updated_at=datetime.now(), |
| 57 | + ) |
| 58 | + session.add(log) |
| 59 | + await session.flush() # 立即写入，获取ID |
| 60 | + logger.info(f"创建请求日志: request_id={request_id}, input_type={input_type}, status=processing") |
| 61 | + return log |
| 62 | + except Exception as e: |
| 63 | + logger.error(f"创建请求日志失败: {e}") |
| 64 | + return None |
| 65 | + |
| 66 | + @staticmethod |
| 67 | + async def update_log_success( |
| 68 | + session: Optional[AsyncSession], |
| 69 | + request_id: str, |
| 70 | + output_markdown: Optional[str] = None, |
| 71 | + ) -> bool: |
| 72 | + """更新请求日志为成功状态. |
| 73 | +
|
| 74 | + Args: |
| 75 | + session: 数据库会话 |
| 76 | + request_id: 请求ID |
| 77 | + output_markdown: 输出Markdown内容 |
| 78 | + Returns: |
| 79 | + 是否更新成功 |
| 80 | + """ |
| 81 | + if session is None: |
| 82 | + return False |
| 83 | + try: |
| 84 | + result = await session.execute( |
| 85 | + select(RequestLog).where(RequestLog.request_id == request_id) |
| 86 | + ) |
| 87 | + log = result.scalar_one_or_none() |
| 88 | + if log: |
| 89 | + log.status = 'success' |
| 90 | + log.output_markdown = output_markdown |
| 91 | + log.updated_at = datetime.now() |
| 92 | + await session.flush() |
| 93 | + logger.info(f"更新请求日志为成功: request_id={request_id}, status=success") |
| 94 | + return True |
| 95 | + else: |
| 96 | + logger.warning(f"未找到请求日志: request_id={request_id}") |
| 97 | + return False |
| 98 | + except Exception as e: |
| 99 | + logger.error(f"更新请求日志失败: {e}") |
| 100 | + return False |
| 101 | + |
| 102 | + @staticmethod |
| 103 | + async def update_log_failure( |
| 104 | + session: Optional[AsyncSession], |
| 105 | + request_id: str, |
| 106 | + error_message: str, |
| 107 | + ) -> bool: |
| 108 | + """更新请求日志为失败状态. |
| 109 | +
|
| 110 | + Args: |
| 111 | + session: 数据库会话 |
| 112 | + request_id: 请求ID |
| 113 | + error_message: 错误信息 |
| 114 | + Returns: |
| 115 | + 是否更新成功 |
| 116 | + """ |
| 117 | + if session is None: |
| 118 | + return False |
| 119 | + try: |
| 120 | + result = await session.execute( |
| 121 | + select(RequestLog).where(RequestLog.request_id == request_id) |
| 122 | + ) |
| 123 | + log = result.scalar_one_or_none() |
| 124 | + if log: |
| 125 | + log.status = 'fail' |
| 126 | + log.error_message = error_message |
| 127 | + log.updated_at = datetime.now() |
| 128 | + await session.flush() |
| 129 | + logger.info(f"更新请求日志为失败: request_id={request_id}, status=fail") |
| 130 | + return True |
| 131 | + else: |
| 132 | + logger.warning(f"未找到请求日志: request_id={request_id}") |
| 133 | + return False |
| 134 | + |
| 135 | + except Exception as e: |
| 136 | + logger.error(f"更新请求日志失败: {e}") |
| 137 | + return False |
| 138 | + |
| 139 | + @staticmethod |
| 140 | + async def get_log_by_request_id( |
| 141 | + session: Optional[AsyncSession], |
| 142 | + request_id: str, |
| 143 | + ) -> Optional[RequestLog]: |
| 144 | + """根据请求ID查询日志. |
| 145 | +
|
| 146 | + Args: |
| 147 | + session: 数据库会话 |
| 148 | + request_id: 请求ID |
| 149 | + Returns: |
| 150 | + 日志记录，如果未找到则返回 None |
| 151 | + """ |
| 152 | + if session is None: |
| 153 | + return None |
| 154 | + try: |
| 155 | + result = await session.execute( |
| 156 | + select(RequestLog).where(RequestLog.request_id == request_id) |
| 157 | + ) |
| 158 | + return result.scalar_one_or_none() |
| 159 | + except Exception as e: |
| 160 | + logger.error(f"查询请求日志失败: {e}") |
| 161 | + return None |
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