code: @Override
  	public AsyncService getAsyncService(TNonblockingTransport transport, String serviceName) throws IkasoaException {
  		if (transport == null)
  			throw new IllegalArgumentException("'transport' is null !");
  		try {
  			return StringUtil.isEmpty(serviceName)
  					? new AsyncServiceClientImpl((TProtocolFactory) new TCompactProtocol.Factory(), transport)
  					: new AsyncServiceClientImpl(new AsyncMultiplexedProtocolFactory(serviceName), transport);
  		} catch (IOException e) {
  			throw new IkasoaException(e);
  		}
  	}
docs: 获取客户端AsyncService对象