public string ProcessOrder()
{
var ruleType = typeof(IPaymentRule);
IEnumerable <IPaymentRule> rules = ruleType.Assembly.GetTypes()
.Where(p => ruleType.IsAssignableFrom(p) && !p.IsInterface)
.Select(r => Activator.CreateInstance(r) as IPaymentRule);
var engine = new PaymentRuleEngine(rules);
return(engine.ProcessingRules(payments));
}
/// <summary>
/// Call the engine to switch to sepcific rule
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="item"></param>
public void DoPayment <T>(T item)
{
// Ref - https://garywoodfine.com/get-c-classes-implementing-interface/
var ruleType = typeof(IPaymentRule);
IEnumerable <IPaymentRule> rules = this.GetType().Assembly.GetTypes()
.Where(x => ruleType.IsAssignableFrom(x) && !x.IsInterface && !x.IsAbstract)
.Select(r => Activator.CreateInstance(r) as IPaymentRule);
var paymentRuleEngine = new PaymentRuleEngine(rules);
paymentRuleEngine.DoPayment(item);
}
private void LoadTemperoryRuleEngine(ICacheProvider cacheProvider)
{
_RuleEngine = PaymentRuleEngine.Engine(cacheProvider);
_RuleEngine.Rules.Clear();
var rules = _PaymentRuleService.GetAllInclude(p => p.Criterias, p => p.Actions);
if (rules != null)
{
foreach (var item in rules)
{
_RuleEngine.Rules.Add(item);
}
}
}
public void TestGenerateComission()
{
//Data Set Up
PaymentInfo payment = new PaymentInfo()
{
PaymentType = "Book", CustomerId = 100, OrderId = 10, PaymentId = 101
};
PaymentRuleEngine pr = new PaymentRuleEngine();
//Execute
var result = pr.ProcessPayment(payment);
//Assert
Assert.IsNotNull(result);
Assert.IsTrue(result.Contains("CommisionGenerated"));
}
public void TestMembershipActivation()
{
//Data Set Up
PaymentInfo payment = new PaymentInfo()
{
PaymentType = "Membership", CustomerId = 100, OrderId = 10, PaymentId = 101
};
PaymentRuleEngine pr = new PaymentRuleEngine();
//Execute
var result = pr.ProcessPayment(payment);
//Assert
Assert.IsNotNull(result);
Assert.IsTrue(result.Contains("MembershipActivated"));
}
public void Cleanup()
{
sut = null;
}
