How to get the size of @Param in @Query Repositories JPA

Question

I have a question and it is that I want to know the size of a @Param that I pass to the @Query but it gives me the following error when compiling:

unexpected token: : near line 1

I show you the code of my query:

  @Query(
  value = "SELECT DISTINCT company "
      + " FROM Company company "
      + " left join  company.companyProducts products "
      + " inner join  empresa.servicios services "
      + "   WHERE services.idService IN (:idsServices) "
      + "   AND products.id.idProduct IS NOT NULL "
      + "   AND ( (:idsProducts IS NOT NULL AND  COUNT(:idsProducts)>0)"
      + ") OR productos.id.idProduct IN (:idsProducts)) ")
  List<EmpresaGrupo> obtenerEmpresasProductoServicio(@Param("idsProducts") List<Integer> 
  idsProducts,
  @Param("idsServices") List<Integer> idsServices);

The error jumps right where I do the Count of the @Param:

(:idsProducts IS NOT NULL AND  COUNT(:idsProducts)>0)

Thanks for help