internal static InputCommand FactoryMethod(string[] input, InputCommandInvoker invoker)
{
InputCommand newCommand = null;
// check the lengh
if (input == null)
throw new InvalidInputException();
//
// check if parameters is valid
//
// check setup command
switch (input[0])
{
// pattern: -st [--setup] “pathXmi” “pathTemplates” “LanguageResult”
case "-st":
case "--setup":
newCommand = new SetupCommand(invoker);
break;
// pattern: -qt [--queryType] “nameQueryType” -p [--params] “entityA” “entityB”
case "-qt":
case "--queryType":
newCommand = new QueryTypeCommand(invoker);
break;
// pattern: -lq [--getTypeofQueries]
case "-lq":
case "--getTypeofQueries":
newCommand = new ListTypeofQueriesCommand(invoker);
break;
// pattern -cst [--currentSetup]
case "-cst":
case "--currentSetup":
newCommand = new CurrentSetupCommand(invoker);
break;
// pattern -h [--help]
case "-h":
case "--help":
newCommand = new HelpCommand(invoker);
break;
// When the input is not valid.
default:
throw new InvalidCommandInputException(
string.Concat("'", input[0], "' is not recognized as an command")
);
}
// check paramter order.
if (newCommand != null)
newCommand.Input = input;
return newCommand;
}
public SetupCommand(InputCommandInvoker invoker)
: base(invoker)
{
}
/// <summary>
/// Default constructor for InputCommand.
/// </summary>
/// <param name="invoker">
/// Reference invoker handler.
/// </param>
public InputCommand(InputCommandInvoker invoker)
{
this.MyInvoker = invoker;
}
public CurrentSetupCommand(InputCommandInvoker invoker)
: base(invoker)
{
}
public HelpCommand(InputCommandInvoker invoker)
: base(invoker)
{
}
public QueryTypeCommand(InputCommandInvoker invoker)
: base(invoker)
{
}
public ListTypeofQueriesCommand(InputCommandInvoker invoker)
: base(invoker)
{
}