public static void Run()
{
Handler emailHandler = new SpamHandler(
new FanHandler(
new ComplaintHandler(
new NewLocHandler(null))));
Email eSpam = new Email(EmailType.Spam, "Dear Dir, I am a Nigerian prince in need to transfer large sums of money out of the country. All I need is your bank account number ...");
emailHandler.HandleRequest(eSpam);
Email eFan = new Email(EmailType.Fan, "I love your gumball machines! Please stock them with more bubble-gum flavors :-) ");
emailHandler.HandleRequest(eFan);
Email eComplaint = new Email(EmailType.Complaint, "I swear, if I get one more black licorice flavored gumball, I am going to break your machines!");
emailHandler.HandleRequest(eComplaint);
Email eOther = new Email(EmailType.Unclassified, "We would love to have one of your machines installed in our dentist waiting room ...");
emailHandler.HandleRequest(eOther);
}
public static void TestChainOfResponsibility()
{
Console.WriteLine("----------------------Chain of Responsibility----------------------");
EmailHandler spamHandler = new SpamHandler();
EmailHandler fanHandler = new FanHandler();
EmailHandler complaintHandler = new ComplaintHandler();
EmailHandler newLocationHandler = new NewLocationHandler();
EmailHandler unknownEmailHandler = new UnknownEmailHandler();
spamHandler.Handler = fanHandler;
fanHandler.Handler = complaintHandler;
complaintHandler.Handler = newLocationHandler;
newLocationHandler.Handler = unknownEmailHandler;
Console.WriteLine("Spam email:");
spamHandler.HandleEmail("Spam");
Console.WriteLine("\nFan email");
spamHandler.HandleEmail("Fan");
Console.WriteLine("\nComplaint email:");
spamHandler.HandleEmail("Complaint");
Console.WriteLine("\nNew location email:");
spamHandler.HandleEmail("Location");
Console.WriteLine("\nAdvertisement email:");
spamHandler.HandleEmail("Advertisement");
complaintHandler.Handler = null;
Console.WriteLine("\n(Broken chain)New Location email:");
spamHandler.HandleEmail("Location");
Console.WriteLine("---------------------------------------------------\n");
}
