public String Statistic(String cmdType, String arg1, String arg2)
{
ICommand cmd;
if (cmdType == "Sum")
{
ISum sum = SumFactory.GetCommand(arg1, arg2);
cmd = new SumCommand(sum);
}
else if (cmdType == "Average")
{
IAverage average = AverageFactory.GetCommand(arg1, arg2);
cmd = new AverageCommand(average);
}
else if (cmdType == "Max")
{
IMax max = MaxFactory.GetCommand(arg1, arg2);
cmd = new MaxCommand(max);
}
else
{
IMin min = MinFactory.GetCommand(arg1, arg2);
cmd = new MinCommand(min);
}
String res = CommandInvoker.DoCommand(cmd);
return(res);
}
public MinCommand(IMin cmd)
{
this.cmd = cmd;
}
