/*
* Terse demonstration of processing commandline input provided by the user
*
*/
private static void processUserInput(string[] args)
{
if (args.Length != 2 || (!args[0].Equals("verify") && !args[0].Equals("complete")))
{
Console.WriteLine("\nIncorrect arguments.\n");
Console.WriteLine("Usage: dotnet ExampleUser.dll {verify|complete} gmn_data\n");
Environment.Exit(1);
}
try
{
if (args[0].Equals("verify"))
{
bool valid = HealthcareGMN.VerifyCheckCharacters(args[1]);
Console.WriteLine("The check characters are " + (valid ? "valid" : "NOT valid"));
Environment.Exit(valid ? 0:1);
}
else // complete
{
Console.WriteLine(HealthcareGMN.AddCheckCharacters(args[1]));
Environment.Exit(0);
}
}
catch (GS1Exception e)
{
Console.WriteLine("Error: " + e.Message);
Environment.Exit(1);
}
}
static void Main(string[] args)
{
/*
* User has provided commandline arguments. We tuck this code out of
* the way for clarity and demonstrate some simpler cases first.
*
*/
if (args.Length > 0)
{
processUserInput(args);
}
/*
* Non-interactive demonstration
*
*/
Console.WriteLine("\nOutput from non-interactive demonstration");
Console.WriteLine("*****************************************\n");
/*
* Example: GS1.HealthcareGMN.VerifyCheckCharacters
*
* Verifying the check characters of a healthcare GMN.
*
*/
try
{
string gmn = "1987654Ad4X4bL5ttr2310c2K"; // Valid GMN based on example from the Gen Specs
// string gmn = "1987654Ad4X4bL5ttr2310cZZ"; // Invalid: Bad check digits
// Examples that raise exceptions:
//
// string gmn = "1987654Ad4X4bL5ttr2310c2KZ"; // Exception: Too long
// string gmn = "12345AB"; // Exception: Too short
// string gmn = "ABC7654Ad4X4bL5ttr2310cZZ"; // Exception: Doesn't start with five digits
// string gmn = "12345£££d4X4bL5ttr2310cZZ"; // Exception: Contains characters outside of CSET 82
/* Call the GS1.Healthcare.VerifyCheckCharacters helper */
bool valid = HealthcareGMN.VerifyCheckCharacters(gmn);
if (valid)
{
Console.WriteLine("This healthcare GMN has correct check characters: " + gmn);
}
else
{
Console.WriteLine("This healthcare GMN has incorrect check characters: " + gmn);
}
Console.WriteLine();
}
catch (GS1Exception e)
{
Console.Error.WriteLine("Something went wrong: " + e.Message);
System.Environment.Exit(1);
}
/*
* Example: GS1.HealthcareGMN.AddCheckCharacters
*
* Adding the check characters to an incomplete healthcare GMN.
*
*/
try
{
string partialGMN = "1987654Ad4X4bL5ttr2310c"; // Based on example from the Gen Specs
// Examples that raise exceptions:
//
// string partialGMN = "1987654Ad4X4bL5ttr2310cX"; // Exception: Too long
// string partialGMN = "12345"; // Exception: Too short
// string partialGMN = "ABC7654Ad4X4bL5ttr2310c"; // Exception: Doesn't start with five digits
// string partialGMN = "12345£££d4X4bL5ttr2310c"; // Exception: Contains characters outside of CSET 82
/* Call the GS1.HealthcareGMN.AddCheckCharacters helper */
string gmn = HealthcareGMN.AddCheckCharacters(partialGMN);
Console.WriteLine("Partial: " + partialGMN);
Console.WriteLine("Full GMN: " + gmn);
Console.WriteLine();
}
catch (GS1Exception e)
{
Console.Error.WriteLine("Something went wrong: " + e.Message);
System.Environment.Exit(1);
}
/*
* Example: GS1.HealthcareGMN.CheckCharacters
*
* Returning just the check characters, then completing the healthcare GMN
*
*/
try
{
string partialGMN = "1987654Ad4X4bL5ttr2310c"; // Based on example from the Gen Specs
/* Call the GS1.HealthCareGMN.CheckCharacters helper */
string checkCharacters = HealthcareGMN.CheckCharacters(partialGMN);
Console.WriteLine("Partial: " + partialGMN);
Console.WriteLine("Checks: " + checkCharacters);
// Contatenate to produce the complete healthcare GMN
string gmn = partialGMN + checkCharacters;
Console.WriteLine("Full healthcare GMN: " + gmn);
Console.WriteLine();
}
catch (GS1Exception e)
{
Console.Error.WriteLine("Something went wrong: " + e.Message);
System.Environment.Exit(1);
}
/*
* Interactive demonstration
*
*/
Console.WriteLine("\nInteractive demonstration");
Console.WriteLine("*************************");
while (true)
{
Console.WriteLine("\nPlease select an option:\n");
Console.WriteLine(" c - Complete a partial healthcare GMN by adding check digits");
Console.WriteLine(" v - Verify the check digits of a complete healthcare GMN");
Console.WriteLine(" cf - Complete partial healthcare GMNs supplied on each line of a file");
Console.WriteLine(" vf - Verify complete healthcare GMNs supplied on each line of a file");
Console.WriteLine(" q - Quit");
Console.Write("\nEnter option (c/v/cf/vf/q)? ");
string opt = Console.ReadLine();
// Quit
if (opt.Equals("q"))
{
break;
}
// Verify a healthcare GMN
if (opt.Equals("v"))
{
try
{
Console.Write("\nPlease supply a healthcare GMN: ");
String gmn = Console.ReadLine();
bool valid = HealthcareGMN.VerifyCheckCharacters(gmn);
Console.WriteLine("Outcome: " + (valid ? "*** Valid ***" : "*** Not valid ***"));
}
catch (GS1Exception e)
{
Console.WriteLine("Error with input: " + e.Message);
}
continue;
}
// Complete a partial healthcare GMN
if (opt.Equals("c"))
{
try
{
Console.Write("\nPlease supply a partial healthcare GMN to complete: ");
String gmn = Console.ReadLine();
String complete = HealthcareGMN.AddCheckCharacters(gmn);
Console.WriteLine("Complete healthcare GMN: " + complete);
}
catch (GS1Exception e)
{
Console.WriteLine("Error with input: " + e.Message);
}
continue;
}
// Operations line by line on a file
if (opt.Equals("cf") || opt.Equals("vf"))
{
try
{
Console.Write("\nPlease supply a filename: ");
string filename = Console.ReadLine();
System.IO.StreamReader reader = new System.IO.StreamReader(filename);
string linein, lineout;
while ((linein = reader.ReadLine()) != null)
{
try
{
if (opt.Equals("cf"))
{
lineout = HealthcareGMN.CheckCharacters(linein);
}
else
{ // vf
lineout = HealthcareGMN.VerifyCheckCharacters(linein) ? "*** Valid ***" : "*** Not valid ***";
}
}
catch (GS1Exception e)
{
lineout = e.Message;
}
Console.WriteLine(linein + " : " + lineout);
}
reader.Close();
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
continue;
}
}
return;
}