((SCAClient)node).getService(CalculatorService.class, "CalculatorServiceComponent");
System.out.println("3 + 2=" + calculatorService.add(3, 2));
System.out.println("3 - 2=" + calculatorService.subtract(3, 2));
System.out.println("3 * 2=" + calculatorService.multiply(3, 2));
System.out.println("3 / 2=" + calculatorService.divide(3, 2));
/*calculatorService =
((SCAClient)node).getService(CalculatorService.class, "AnotherCalculatorServiceComponent");
System.out.println("3 + 2=" + calculatorService.add(3, 2));