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TaskProducer

Struct TaskProducer 

Source
pub struct TaskProducer { /* private fields */ }
Expand description

任务生产者

将任务提交到 Kafka 主题,并委托 TaskStorage 持久化任务日志与队列记录。 不持有任何 SQL 语句或数据库表名——完全由 TaskStorage 实现方控制。

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impl TaskProducer

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pub fn new( brokers: &str, storage: Arc<dyn TaskStorage>, registry: HandlerRegistry, ) -> Result<Self, String>

创建任务生产者

  • brokers: Kafka broker 地址
  • storage: 由业务方实现的持久化接口
  • registry: 已注册 handler 的注册中心

返回 Err 而非 panic,便于外部处理 Kafka 连接失败。

Source

pub async fn submit(&self, params: SubmitTaskParams) -> Result<String, String>

提交任务

  1. 生成 task_id
  2. 委托 storage 持久化任务日志与队列记录
  3. 发送 Kafka 消息
Source

pub async fn submit_batch( &self, params: SubmitBatchParams, ) -> (usize, Vec<(usize, String)>)

批量提交任务

逐个提交,部分失败不影响其他任务。 返回 (成功数, 失败详情列表)

Source

pub async fn send_to_dlq( &self, msg: &TaskMessage, dead_letter_topic: &str, reason: &str, ) -> Result<(), String>

发送消息到死信队列

将失败的 TaskMessage 转发到 dead_letter_topic,同时委托 storage 更新状态为 DeadLetter。

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