Java HistoryEvent.getEventType方法代码示例

import org.apache.hadoop.mapreduce.jobhistory.HistoryEvent; //导入方法依赖的package包/类
@Override
public void handleEvent(HistoryEvent event)  { 
  EventType type = event.getEventType();

  switch (type) {
  case MAP_ATTEMPT_FINISHED:
    handleMapAttemptFinishedEvent((MapAttemptFinishedEvent) event);
super.handleEvent(event);
    break;
  case REDUCE_ATTEMPT_FINISHED:
    handleReduceAttemptFinishedEvent((ReduceAttemptFinishedEvent) event);
super.handleEvent(event);
    break;
  default:
  	super.handleEvent(event);
    break;
  }
}
 

import org.apache.hadoop.mapreduce.jobhistory.HistoryEvent; //导入方法依赖的package包/类
private List<AMInfo> readJustAMInfos() {
  List<AMInfo> amInfos = new ArrayList<AMInfo>();
  FSDataInputStream inputStream = null;
  try {
    inputStream = getPreviousJobHistoryStream(getConfig(), appAttemptID);
    EventReader jobHistoryEventReader = new EventReader(inputStream);

    // All AMInfos are contiguous. Track when the first AMStartedEvent
    // appears.
    boolean amStartedEventsBegan = false;

    HistoryEvent event;
    while ((event = jobHistoryEventReader.getNextEvent()) != null) {
      if (event.getEventType() == EventType.AM_STARTED) {
        if (!amStartedEventsBegan) {
          // First AMStartedEvent.
          amStartedEventsBegan = true;
        }
        AMStartedEvent amStartedEvent = (AMStartedEvent) event;
        amInfos.add(MRBuilderUtils.newAMInfo(
          amStartedEvent.getAppAttemptId(), amStartedEvent.getStartTime(),
          amStartedEvent.getContainerId(),
          StringInterner.weakIntern(amStartedEvent.getNodeManagerHost()),
          amStartedEvent.getNodeManagerPort(),
          amStartedEvent.getNodeManagerHttpPort()));
      } else if (amStartedEventsBegan) {
        // This means AMStartedEvents began and this event is a
        // non-AMStarted event.
        // No need to continue reading all the other events.
        break;
      }
    }
  } catch (IOException e) {
    LOG.warn("Could not parse the old history file. "
        + "Will not have old AMinfos ", e);
  } finally {
    if (inputStream != null) {
      IOUtils.closeQuietly(inputStream);
    }
  }
  return amInfos;
}
 

import org.apache.hadoop.mapreduce.jobhistory.HistoryEvent; //导入方法依赖的package包/类
/**
 * Process one {@link HistoryEvent}
 * 
 * @param event
 *          The {@link HistoryEvent} to be processed.
 */
public void process(HistoryEvent event) {
  if (finalized) {
    throw new IllegalStateException(
        "JobBuilder.process(HistoryEvent event) called after ParsedJob built");
  }

  // these are in lexicographical order by class name.
  if (event instanceof AMStartedEvent) {
    // ignore this event as Rumen currently doesnt need this event
    //TODO Enhance Rumen to process this event and capture restarts
    return;
  } else if (event instanceof NormalizedResourceEvent) {
    // Log an warn message as NormalizedResourceEvent shouldn't be written.
    LOG.warn("NormalizedResourceEvent should be ignored in history server.");
  } else if (event instanceof JobFinishedEvent) {
    processJobFinishedEvent((JobFinishedEvent) event);
  } else if (event instanceof JobInfoChangeEvent) {
    processJobInfoChangeEvent((JobInfoChangeEvent) event);
  } else if (event instanceof JobInitedEvent) {
    processJobInitedEvent((JobInitedEvent) event);
  } else if (event instanceof JobPriorityChangeEvent) {
    processJobPriorityChangeEvent((JobPriorityChangeEvent) event);
  } else if (event instanceof JobQueueChangeEvent) {
    processJobQueueChangeEvent((JobQueueChangeEvent) event);
  } else if (event instanceof JobStatusChangedEvent) {
    processJobStatusChangedEvent((JobStatusChangedEvent) event);
  } else if (event instanceof JobSubmittedEvent) {
    processJobSubmittedEvent((JobSubmittedEvent) event);
  } else if (event instanceof JobUnsuccessfulCompletionEvent) {
    processJobUnsuccessfulCompletionEvent((JobUnsuccessfulCompletionEvent) event);
  } else if (event instanceof MapAttemptFinishedEvent) {
    processMapAttemptFinishedEvent((MapAttemptFinishedEvent) event);
  } else if (event instanceof ReduceAttemptFinishedEvent) {
    processReduceAttemptFinishedEvent((ReduceAttemptFinishedEvent) event);
  } else if (event instanceof TaskAttemptFinishedEvent) {
    processTaskAttemptFinishedEvent((TaskAttemptFinishedEvent) event);
  } else if (event instanceof TaskAttemptStartedEvent) {
    processTaskAttemptStartedEvent((TaskAttemptStartedEvent) event);
  } else if (event instanceof TaskAttemptUnsuccessfulCompletionEvent) {
    processTaskAttemptUnsuccessfulCompletionEvent((TaskAttemptUnsuccessfulCompletionEvent) event);
  } else if (event instanceof TaskFailedEvent) {
    processTaskFailedEvent((TaskFailedEvent) event);
  } else if (event instanceof TaskFinishedEvent) {
    processTaskFinishedEvent((TaskFinishedEvent) event);
  } else if (event instanceof TaskStartedEvent) {
    processTaskStartedEvent((TaskStartedEvent) event);
  } else if (event instanceof TaskUpdatedEvent) {
    processTaskUpdatedEvent((TaskUpdatedEvent) event);
  } else
    throw new IllegalArgumentException(
        "JobBuilder.process(HistoryEvent): unknown event type:"
        + event.getEventType() + " for event:" + event);
}