// Function that implements functionalty for console utility and returns exit code.
// Function should not throw exceptions.
internal static int Execute(ConsoleUtilityContext context)
{
// Get 'user' switch from parsed arguments.
var userNameArgument = context.Arguments.GetArgument(Switches.UserName);
if (!userNameArgument.isSpecified)
{
// If switch is not specified, print error message to default output.
context.Output.Stream.WriteLine("Error: User name not specified.");
if (!context.Silent)
{
// If not in silent mode, we can additionally print help message.
context.Output.Stream.WriteLine();
context.Output.Stream.Write(context.Switches.ToString());
}
// Return error code.
return(ExitCodes.InvalidArgumentSet);
}
// Get user name from switch.
string userName = userNameArgument.parameters[0];
// Get 'greeting' switch from parsed arguments.
var greetingArgument = context.Arguments.GetArgument(Switches.Greeting);
// If switch is present, use greeting message from it.
string greeting = greetingArgument.isSpecified
? greetingArgument.parameters[0] : "Hello";
// Parameter chesk is done. Now to primary functionality.
// Print greeting message to default output.
context.Output.Stream.WriteLine($"{greeting}, {userName}!");
// Return success exit code.
return(DefaultExitCodes.Success);
}
/// <summary>
/// Initializes a new instance of the <see cref="SimpleConsoleUtility"/> class.
/// </summary>
public SimpleConsoleUtility()
{
this.context = new ConsoleUtilityContext();
this.ExitCode = DefaultExitCodes.UnexpectedExit;
}
