private static ICalculator GetcalculatorInstnce(int operation)
{
ICalculator calculator = null;
if (operation == 0)
{
calculator = new Addition();
}
else if (operation == 1)
{
calculator = new Sub();
}
else if (operation == 2)
{
calculator = new Multiplication();
}
else if (operation == 3)
{
calculator = new Division();
}
return(calculator);
}
static void Main(string[] args)
{
//you should change these configurations for your own rabbitmq server
string rbmqUsername = "******";
string rbmqPassword = "******";
string rbmqServerUrl = "localhost";
CalUnit cal = new CalUnit("aggregate.calUnit", "calUnit", rbmqUsername, rbmqPassword, rbmqServerUrl);
Add add = new Add("chips.add", "add", rbmqUsername, rbmqPassword, rbmqServerUrl);
Sub sub = new Sub("chips.sub", "sub", rbmqUsername, rbmqPassword, rbmqServerUrl);
Mul mul = new Mul("chips.mul", "mul", rbmqUsername, rbmqPassword, rbmqServerUrl);
Div div = new Div("chips.div", "div", rbmqUsername, rbmqPassword, rbmqServerUrl);
Console.WriteLine("working...");
string line;
while ((line = Console.ReadLine()).Trim() != "q")
{
try {
var match = Regex.Match(line, @"(?<a>\d+(\.\d+)?)(?<op>[+\-*/])(?<b>\d+(\.\d+)?)");
double a = Convert.ToDouble(match.Groups["a"].Value);
string op = match.Groups["op"].Value;
double b = Convert.ToDouble(match.Groups["b"].Value);
cal.calculate(op, a, b);
} catch (Exception) {
Console.WriteLine("invalid input.");
}
}
div.stopWork();
mul.stopWork();
sub.stopWork();
add.stopWork();
cal.stopWork();
}