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ChainOfResponsbility.cs
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ChainOfResponsbility.cs
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using System;
namespace ChainOfResponsbility
{
public class User
{
public string Login { get; private set; }
public string Password { get; private set; }
public User(string login, string password)
{
Login = login;
Password = password;
}
}
public abstract class Handler
{
protected Handler _successor;
public abstract void Handle(User user);
public Handler()
{
_successor = null;
}
public Handler(Handler successor)
{
this._successor = successor;
}
public void SetSuccessor(Handler succ)
{
if (succ == null)
{
throw new NullReferenceException(nameof(succ));
}
_successor = succ;
}
}
public class AdminChainAuth: Handler
{
public AdminChainAuth() : base() { }
public AdminChainAuth(Handler successor) : base(successor) { }
public override void Handle(User user)
{
if (user.Login.Contains("admin"))
{
Console.WriteLine("Administrator!");
}
else if (this._successor != null)
{
this._successor.Handle(user);
}
}
}
public class CustomerChainAuth : Handler
{
public CustomerChainAuth() : base() { }
public CustomerChainAuth(Handler successor) : base(successor) { }
public override void Handle(User user)
{
if (user.Login.Contains("user"))
{
Console.WriteLine("User!");
}
else if (this._successor != null)
{
this._successor.Handle(user);
}
}
}
public class DefaultChainAuth : Handler
{
public DefaultChainAuth() : base() { }
public DefaultChainAuth(Handler successor) : base(successor) { }
public override void Handle(User user)
{
Console.WriteLine("No name!");
}
}
}