Question

请使用以下代码段：

TStream<Integer> stream = top.generate(() -> {            
  try{
    Thread.sleep(1500);
  }catch(InterruptedException ex){
    //DO NOTHING
  }
  return (int)(Math.random() * 100);
});

TWindow<Integer, Integer> window = stream.last(5, TimeUnit.SECONDS, zero());

TStream<Double> average = window.batch((values, key) -> {
  int sum = values.stream().mapToInt(Integer::intValue).sum();
  return (double)sum / values.size();
});

average.peek(average1 -> LOGGER.info("Calculated average : " + average1));
job = dp.submit(top);

调用job = dp.submit(top)后，执行拓扑的线程将继续在后台运行，直到JVM停止。

如何以编程方式停止此后台进程？当Edgent拓扑作为与同一JVM中的其他任务的单独进程一起运行时，这尤其有用。我试着打电话给job.cancel(true)，但这并没有解决问题。任务继续运行......

Answer 1

尝试通过Job.stateChange(Job.Action.CLOSE)

关闭作业

在此处查看示例用法： https://github.com/apache/incubator-edgent-samples/blob/develop/topology/src/main/java/org/apache/edgent/samples/topology/JobExecution.java

如何关闭Apache Edgent后台任务？

1 个答案: