High-performance event library for Python 3.11+
Project description
Symphra-Event
高性能事件库,支持同步、异步和混合模式的事件处理。
特性
- 高性能:使用智能缓存、延迟清理、批量操作等优化策略
- 异步支持:深度集成 async/await,支持同步、异步和混合模式
- 事件总线:全局命名空间管理,支持跨模块事件通信
- 优先级系统:基于优先级的监听器排序
- 条件过滤:支持条件函数过滤事件
- 一次性监听器:自动移除的单次监听器
- 弱引用清理:自动清理失效的处理器引用
- 标签管理:基于标签的监听器管理
- 批量操作:支持批量注册和移除监听器
- 中间件系统:可插拔的中间件架构
- 执行策略:支持串行、并行、流水线三种执行模式
- 插件系统:可扩展的插件架构
安装
从源码安装
git clone https://git.getaix.tech/symphra/symphra-event.git
cd symphra-event
pip install -e .
从Git安装
pip install git+https://git.getaix.tech/symphra/symphra-event.git
快速开始
基本用法
from symphra_event import EventEmitter
# 创建事件发射器
emitter = EventEmitter()
# 注册监听器
@emitter.on
def handler(data: str) -> None:
print(f"收到: {data}")
# 触发事件
emitter.emit(data="Hello, World!")
使用事件总线
from symphra_event import EventBus
# 创建命名空间事件发射器
user_emitter = EventBus.create("user")
@user_emitter.on
def on_user_login(data: dict) -> None:
print(f"用户登录: {data['username']}")
# 触发事件
user_emitter.emit(username="alice", action="login")
异步支持
import asyncio
from symphra_event import AsyncEventEmitter
async def main():
emitter = AsyncEventEmitter()
@emitter.on
async def async_handler(data: str) -> None:
await asyncio.sleep(1)
print(f"异步处理: {data}")
# 触发异步事件
await emitter.emit(data="async test")
asyncio.run(main())
使用装饰器
from symphra_event import emitter, emit
@emitter("user.register")
def handle_user_register(data: dict) -> None:
print(f"新用户注册: {data['username']}")
# 触发事件
emit("user.register", username="bob", email="bob@example.com")
高级特性
优先级控制
from symphra_event.types import Priority
@emitter.on(priority=Priority.HIGH)
def high_priority_handler(data: str) -> None:
print("高优先级处理器")
@emitter.on(priority=Priority.LOW)
def low_priority_handler(data: str) -> None:
print("低优先级处理器")
条件过滤
def only_errors(data: dict) -> bool:
return data.get("level") == "error"
@emitter.on(condition=only_errors)
def error_handler(data: dict) -> None:
print(f"错误: {data['message']}")
一次性监听器
@emitter.once
def one_time_handler(data: str) -> None:
print("只执行一次")
emitter.emit(data="test") # 执行
emitter.emit(data="test") # 不执行
批量操作
# 批量注册处理器
emitter.on_many([
handler1,
handler2,
handler3
], priority=10)
# 批量移除
emitter.off_many([handler1, handler2])
执行策略
串行执行
from symphra_event.execution import SequentialExecutor
executor = SequentialExecutor()
result = executor.execute(listeners, data="test")
并行执行
from symphra_event.execution import ParallelExecutor
executor = ParallelExecutor(max_workers=4)
result = executor.execute(listeners, data="test")
流水线执行
from symphra_event.execution import PipelineExecutor
# 流水线:每个处理器的输出作为下一个的输入
def step1(data: dict) -> dict:
return {"processed": data["input"].upper()}
def step2(data: dict) -> dict:
return {"result": f"Processed: {data['processed']}"}
listeners = [Listener(handler=step1), Listener(handler=step2)]
result = PipelineExecutor.execute(listeners, input="test")
# result.pipeline_output = {"result": "Processed: TEST"}
文档
完整文档请访问:https://symphra.getaix.tech
许可证
本项目采用 Apache 2.0 许可证 - 详见 LICENSE 文件
贡献
欢迎提交 Issue 和 Pull Request!
联系方式
版本
当前版本: 0.2.0
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