319.6.4. CamelJobExecutionListener

CamelJobExecutionListener 是 org.springframework.batch.core.JobExecutionListener 接口实施，将作业执行事件发送到 Camel 端点。

Spring Batch 生成的 org.springframework.batch.core.JobExecution 实例作为消息正文发送。要区分 before- 和 after-callbacks SPRING_BATCH_JOB_EVENT_TYPE 标头设置为 BEFORE 或 AFTER 值。

以下示例片断会将 Spring Batch 作业执行事件发送到 JMS 队列。

<bean id="camelJobExecutionListener" class="org.apache.camel.component.spring.batch.support.CamelJobExecutionListener">
  <constructor-arg ref="producerTemplate"/>
  <constructor-arg value="jms:batchEventsBus"/>
</bean>

<batch:job id="myJob">
  <batch:step id="step">
    <batch:tasklet>
      <batch:chunk reader="someReader" writer="someWriter" commit-interval="100"/>
    </batch:tasklet>
  </batch:step>
  <batch:listeners>
    <batch:listener ref="camelJobExecutionListener"/>
  </batch:listeners>
</batch:job>