130 lines
4.7 KiB
Python
130 lines
4.7 KiB
Python
import functools
|
||
import inspect
|
||
import logging
|
||
import weakref
|
||
from typing import Callable, Optional, Dict, List, Any
|
||
|
||
LOG = logging.getLogger("JobDecorator")
|
||
|
||
# 任务注册表类，管理所有任务和实例
|
||
class TaskRegistry:
|
||
_instance = None
|
||
|
||
@classmethod
|
||
def get_instance(cls):
|
||
if cls._instance is None:
|
||
cls._instance = TaskRegistry()
|
||
return cls._instance
|
||
|
||
def __init__(self):
|
||
if TaskRegistry._instance is not None:
|
||
raise RuntimeError("请使用 TaskRegistry.get_instance() 获取实例")
|
||
|
||
self.tasks = [] # 存储所有被装饰的任务
|
||
self.instances = [] # 存储所有实例的弱引用
|
||
|
||
def register_task(self, task_info):
|
||
"""注册任务信息"""
|
||
self.tasks.append(task_info)
|
||
|
||
def register_instance(self, instance):
|
||
"""注册实例到实例列表"""
|
||
# 检查实例是否已注册
|
||
for ref in self.instances:
|
||
if ref() is instance:
|
||
return
|
||
|
||
# 添加实例的弱引用
|
||
self.instances.append(weakref.ref(instance))
|
||
|
||
# 清理已失效的弱引用
|
||
self.instances = [ref for ref in self.instances if ref() is not None]
|
||
|
||
# 尝试为这个实例注册任务
|
||
self.register_tasks_for_instance(instance)
|
||
|
||
def register_tasks_for_instance(self, instance):
|
||
"""为指定实例注册任务"""
|
||
class_name = instance.__class__.__name__
|
||
|
||
for task in self.tasks:
|
||
# 检查任务是否属于这个类
|
||
if task["class_name"] == class_name and hasattr(instance, task["method_name"]):
|
||
method = getattr(instance, task["method_name"])
|
||
|
||
# 注册任务
|
||
if hasattr(instance, 'add_job'):
|
||
LOG.info(f"为 {class_name} 添加定时任务: {task['method_name']}, cron: {task['cron']}")
|
||
instance.add_job(method, task["cron"], task["name"])
|
||
elif hasattr(instance, 'onEveryTime'):
|
||
# 将cron表达式转换为时间字符串 (简化处理，仅支持每天固定时间)
|
||
cron_parts = task["cron"].split()
|
||
if len(cron_parts) >= 2:
|
||
minute, hour = cron_parts[0], cron_parts[1]
|
||
# 移除可能的前导0
|
||
if minute.startswith('0') and len(minute) > 1:
|
||
minute = minute[1:]
|
||
if hour.startswith('0') and len(hour) > 1:
|
||
hour = hour[1:]
|
||
time_str = f"{hour}:{minute}"
|
||
LOG.info(f"为 {class_name} 添加定时任务: {task['method_name']}, 时间: {time_str}")
|
||
instance.onEveryTime(time_str, method)
|
||
|
||
def initialize(self):
|
||
"""初始化任务系统，扫描所有已创建的实例并注册任务"""
|
||
LOG.info("初始化任务系统")
|
||
|
||
# 清理已失效的弱引用
|
||
self.instances = [ref for ref in self.instances if ref() is not None]
|
||
|
||
# 为所有实例注册任务
|
||
for ref in self.instances:
|
||
instance = ref()
|
||
if instance:
|
||
self.register_tasks_for_instance(instance)
|
||
|
||
|
||
# 获取任务注册表实例
|
||
registry = TaskRegistry.get_instance()
|
||
|
||
|
||
def scheduled_job(cron: str, name: Optional[str] = None, enabled: bool = True):
|
||
"""
|
||
定时任务装饰器，用于标记需要定时执行的方法
|
||
|
||
:param cron: cron表达式，例如 "0 0 * * *" 表示每天0点执行一次
|
||
:param name: 任务名称，默认使用方法名
|
||
:param enabled: 是否启用该任务，默认为True
|
||
"""
|
||
|
||
def decorator(func):
|
||
task_name = name or func.__name__
|
||
|
||
# 记录任务信息
|
||
task_info = {
|
||
"func": func,
|
||
"cron": cron,
|
||
"name": task_name,
|
||
"enabled": enabled,
|
||
"method_name": func.__name__,
|
||
"class_name": func.__qualname__.split('.')[0] if '.' in func.__qualname__ else None
|
||
}
|
||
registry.register_task(task_info)
|
||
|
||
LOG.info(f"注册定时任务: {task_name}, cron: {cron}, enabled: {enabled}")
|
||
|
||
@functools.wraps(func)
|
||
def wrapper(*args, **kwargs):
|
||
# 如果是实例方法的第一次调用，注册实例
|
||
if args and not isinstance(args[0], type) and hasattr(args[0], '__class__'):
|
||
registry.register_instance(args[0])
|
||
return func(*args, **kwargs)
|
||
|
||
return wrapper
|
||
|
||
return decorator
|
||
|
||
|
||
def initialize_job_system():
|
||
"""初始化任务系统，扫描所有已创建的实例并注册任务"""
|
||
registry.initialize() |