AutoScraperX/spiders/spider_registry.py

# spider_registry.py完整注释版
"""爬虫注册表模块：维护topic到爬虫类的映射关系"""

from core.utils.log.logger_manager import LoggerManager
from spiders.base_spider import BaseSpider
from spiders.benshanzhufu_recommend import BenshanzhufuRecommend

logger = LoggerManager.get_logger()
aliyun_log = LoggerManager.get_aliyun_logger()

# 爬虫类映射表：topic名称 -> 爬虫类
# 格式说明：键为MQ主题名称，值为继承自BaseSpider的爬虫类
SPIDER_CLASS_MAP = {
    "bszf_recommend_prod": BenshanzhufuRecommend,
    # 新增爬虫时在此添加映射
}


def get_spider_class(topic: str):
    """
    根据MQ主题获取对应的爬虫类

    Args:
        topic: MQ消息的主题名称，需与SPIDER_CLASS_MAP中的键一致

    Returns:
        对应的爬虫类，继承自BaseSpider

    Raises:
        ValueError: 当topic未注册时抛出
        TypeError: 当注册的类不是BaseSpider子类时抛出
    """
    spider_class = SPIDER_CLASS_MAP.get(topic)
    if not spider_class:
        available = ', '.join(SPIDER_CLASS_MAP.keys())
        logger.error(f"未注册的topic: {topic}，可用topic: {available}")
        raise ValueError(f"未知topic: {topic}")

    if not isinstance(spider_class, type) or not issubclass(spider_class, BaseSpider):
        logger.error(f"非法爬虫类: {spider_class}，必须继承自BaseSpider")
        raise TypeError(f"Invalid spider class: {spider_class}")

    return spider_class


def list_registered_topics():
    """获取所有已注册的topic列表"""
    return list(SPIDER_CLASS_MAP.keys())