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MiddlewareChain

Struct MiddlewareChain 

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pub struct MiddlewareChain { /* private fields */ }
Expand description

中间件链

管理所有中间件并按顺序执行

§示例

ⓘ
use flare_core_runtime::middleware::{MiddlewareChain, Middleware};

let mut chain = MiddlewareChain::new();
chain.add(Arc::new(MyMiddleware));

// 执行中间件
chain.before("task-1").await?;
// ... 执行任务 ...
chain.after("task-1", &result).await?;

Implementations§

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impl MiddlewareChain

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pub fn new() -> Self

创建新的中间件链

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pub fn add(&mut self, middleware: Arc<dyn Middleware>)

添加中间件

§参数
  • middleware - 要添加的中间件
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pub async fn before(&self, task_name: &str) -> Result<(), MiddlewareError>

执行所有中间件的 before 钩子

按注册顺序执行,如果某个中间件返回错误,则中断链

§参数
  • task_name - 任务名称
§返回
  • Ok(()) - 所有中间件执行成功
  • Err(MiddlewareError) - 某个中间件返回错误,链被中断
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pub async fn after( &self, task_name: &str, result: &Result<(), Box<dyn Error + Send + Sync>>, ) -> Result<(), MiddlewareError>

执行所有中间件的 after 钩子

按注册顺序执行,即使某个中间件失败也继续执行其他中间件

§参数
  • task_name - 任务名称
  • result - 任务执行结果
§返回
  • Ok(()) - 所有中间件执行成功
  • Err(MiddlewareError) - 某个中间件返回错误(但所有中间件都会执行)
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pub fn middleware_count(&self) -> usize

获取中间件数量

Trait Implementations§

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impl Default for MiddlewareChain

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fn default() -> Self

Returns the “default value” for a type. Read more

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fn from(t: T) -> T

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