class LogAggregationService extends AbstractService implements
    LogHandler {

  @Override
  public void handle(LogHandlerEvent event) {
    switch (event.getType()) {
      case APPLICATION_STARTED:
        LogHandlerAppStartedEvent appStartEvent =
            (LogHandlerAppStartedEvent) event;
        initApp(appStartEvent.getApplicationId(), appStartEvent.getUser(),
            appStartEvent.getCredentials(),
            appStartEvent.getLogRetentionPolicy(),
            appStartEvent.getApplicationAcls(),
            appStartEvent.getLogAggregationContext());
        break;
      case CONTAINER_FINISHED:
        LogHandlerContainerFinishedEvent containerFinishEvent =
            (LogHandlerContainerFinishedEvent) event;
        stopContainer(containerFinishEvent.getContainerId(),
            containerFinishEvent.getExitCode());
        break;
      case APPLICATION_FINISHED:
        LogHandlerAppFinishedEvent appFinishedEvent =
            (LogHandlerAppFinishedEvent) event;
        stopApp(appFinishedEvent.getApplicationId());
        break;
      default:
        ; // Ignore
    }

  }

  public  LogAggregationService(Dispatcher dispatcher, Context context,
      DeletionService deletionService, LocalDirsHandlerService dirsHandler);

}