@Override public void shutdownNow(){
  if (!isOpen())   return;
  open=false;
  if (log.isInfoEnabled())   log.info("begin");
  final long begin=System.currentTimeMillis();
  txWriteService.shutdownNow();
  readService.shutdownNow();
  writeService.shutdownNow();
  if (sampleService != null)   sampleService.shutdownNow();
  final long elapsed=System.currentTimeMillis() - begin;
  if (log.isInfoEnabled())   log.info("Done: elapsed=" + elapsed + "ms");
}

@ Override public void shutdownNow ( ) { if ( ! isOpen ( ) ) return ; open = false ; if ( log . isInfoEnabled ( ) ) log . info ( "begin" ) ; final long begin = System . currentTimeMillis ( ) ; txWriteService . shutdownNow ( ) ; readService . shutdownNow ( ) ; writeService . shutdownNow ( ) ; if ( sampleService != null ) sampleService . shutdownNow ( ) ; final long elapsed = System . currentTimeMillis ( ) - begin ; if ( log . isInfoEnabled ( ) ) log . info ( "Done: elapsed=" + elapsed + "ms" ) ; }
immediate shutdown ( running tasks are canceled rather than being permitted to complete ) .
