import org.apache.hadoop.yarn.server.resourcemanager.amlauncher.AMLauncherEvent; //导入依赖的package包/类
@Override
public void transition(RMAppAttemptImpl appAttempt,
    RMAppAttemptEvent event) {

  appAttempt.progress = 1.0f;

  // Tell the app and the scheduler
  super.transition(appAttempt, event);

  // UnRegister from AMLivelinessMonitor. Perhaps for
  // FAILING/KILLED/UnManaged AMs
  appAttempt.rmContext.getAMLivelinessMonitor().unregister(
      appAttempt.getAppAttemptId());
  appAttempt.rmContext.getAMFinishingMonitor().unregister(
      appAttempt.getAppAttemptId());

  if(!appAttempt.submissionContext.getUnmanagedAM()) {
    // Tell the launcher to cleanup.
    appAttempt.eventHandler.handle(new AMLauncherEvent(
        AMLauncherEventType.CLEANUP, appAttempt));
  }
}
 

import org.apache.hadoop.yarn.server.resourcemanager.amlauncher.AMLauncherEvent; //导入依赖的package包/类
@Override
protected ApplicationMasterLauncher createAMLauncher() {
  return new ApplicationMasterLauncher(getRMContext()) {
    @Override
    protected void serviceStart() {
      // override to not start rpc handler
    }

    @Override
    public void handle(AMLauncherEvent appEvent) {
      // don't do anything
    }

    @Override
    protected void serviceStop() {
      // don't do anything
    }
  };
}
 

import org.apache.hadoop.yarn.server.resourcemanager.amlauncher.AMLauncherEvent; //导入依赖的package包/类
/**
 * {@link RMAppAttemptState#ALLOCATED}
 */
@SuppressWarnings("unchecked")
private void testAppAttemptAllocatedState(Container amContainer) {
  assertEquals(RMAppAttemptState.ALLOCATED, 
      applicationAttempt.getAppAttemptState());
  assertEquals(amContainer, applicationAttempt.getMasterContainer());
  // Check events
  verify(applicationMasterLauncher).handle(any(AMLauncherEvent.class));
  verify(scheduler, times(2)).
      allocate(
          any(
              ApplicationAttemptId.class), any(List.class), any(List.class), 
              any(List.class), any(List.class));
  verify(nmTokenManager).clearNodeSetForAttempt(
    applicationAttempt.getAppAttemptId());
}
 

import org.apache.hadoop.yarn.server.resourcemanager.amlauncher.AMLauncherEvent; //导入依赖的package包/类
@Override
public void transition(RMAppAttemptImpl appAttempt,
    RMAppAttemptEvent event) {

  appAttempt.progress = 1.0f;

  // Tell the app and the scheduler
  super.transition(appAttempt, event);

  // UnRegister from AMLivelinessMonitor
  appAttempt.rmContext.getAMLivelinessMonitor().unregister(
      appAttempt.getAppAttemptId());
  appAttempt.rmContext.getAMFinishingMonitor().unregister(
      appAttempt.getAppAttemptId());

  if(!appAttempt.submissionContext.getUnmanagedAM()) {
    // Tell the launcher to cleanup.
    appAttempt.eventHandler.handle(new AMLauncherEvent(
        AMLauncherEventType.CLEANUP, appAttempt));
  }
}
 

import org.apache.hadoop.yarn.server.resourcemanager.amlauncher.AMLauncherEvent; //导入依赖的package包/类
/**
 * {@link RMAppAttemptState#ALLOCATED}
 */
@SuppressWarnings("unchecked")
private void testAppAttemptAllocatedState(Container amContainer) {
  assertEquals(RMAppAttemptState.ALLOCATED, 
      applicationAttempt.getAppAttemptState());
  assertEquals(amContainer, applicationAttempt.getMasterContainer());
  
  // Check events
  verify(applicationMasterLauncher).handle(any(AMLauncherEvent.class));
  verify(scheduler, times(2)).
      allocate(
          any(
              ApplicationAttemptId.class), any(List.class), any(List.class), 
              any(List.class), any(List.class));
  verify(nmTokenManager).clearNodeSetForAttempt(
    applicationAttempt.getAppAttemptId());
}
 

import org.apache.hadoop.yarn.server.resourcemanager.amlauncher.AMLauncherEvent; //导入依赖的package包/类
/**
 * {@link RMAppAttemptState#ALLOCATED}
 */
@SuppressWarnings("unchecked")
private void testAppAttemptAllocatedState(Container amContainer) {
  assertEquals(RMAppAttemptState.ALLOCATED, 
      applicationAttempt.getAppAttemptState());
  assertEquals(amContainer, applicationAttempt.getMasterContainer());
  // Check events
  verify(applicationMasterLauncher).handle(any(AMLauncherEvent.class));
  verify(scheduler, times(2)).allocate(any(ApplicationAttemptId.class),
      any(List.class), any(List.class), any(List.class), any(List.class),
      any(List.class), any(List.class));
  verify(nmTokenManager).clearNodeSetForAttempt(
    applicationAttempt.getAppAttemptId());
}
 

import org.apache.hadoop.yarn.server.resourcemanager.amlauncher.AMLauncherEvent; //导入依赖的package包/类
@Override
public void transition(RMAppAttemptImpl appAttempt,
    RMAppAttemptEvent event) {

  // Tell the application and scheduler
  super.transition(appAttempt, event);

  // Tell the launcher to cleanup.
  appAttempt.eventHandler.handle(new AMLauncherEvent(
      AMLauncherEventType.CLEANUP, appAttempt));

}
 

import org.apache.hadoop.yarn.server.resourcemanager.amlauncher.AMLauncherEvent; //导入依赖的package包/类
/**
 * {@link RMAppAttemptState#ALLOCATED}
 */
@SuppressWarnings("unchecked")
private void testAppAttemptAllocatedState(Container amContainer) {
  assertEquals(RMAppAttemptState.ALLOCATED, 
      applicationAttempt.getAppAttemptState());
  assertEquals(amContainer, applicationAttempt.getMasterContainer());
  
  // Check events
  verify(applicationMasterLauncher).handle(any(AMLauncherEvent.class));
  verify(scheduler, times(2)).
      allocate(
          any(
              ApplicationAttemptId.class), any(List.class), any(List.class), 
              any(List.class), any(List.class));
}
 

import org.apache.hadoop.yarn.server.resourcemanager.amlauncher.AMLauncherEvent; //导入依赖的package包/类
private void launchAttempt(){
  launchAMStartTime = System.currentTimeMillis();
  // Send event to launch the AM Container
  eventHandler.handle(new AMLauncherEvent(AMLauncherEventType.LAUNCH, this));
}
 

import org.apache.hadoop.yarn.server.resourcemanager.amlauncher.AMLauncherEvent; //导入依赖的package包/类
@Override
public void handle(AMLauncherEvent event) {
  applicationMasterLauncher.handle(event);
}