public static void NonGenericBasicExample()
{
var engine = new RulesEngine();
var rule = new Rule((c, o) => { Console.WriteLine("None generic called"); return(true); });
var ruleDelegate = new Rule(NonGenericDelegate);
engine.AddRule(ruleDelegate);
engine.AddRule(rule);
Console.WriteLine(engine.RunAllRules());
}
static void IRuleExample()
{
// Create an input object (component)
var customer = new Customer {
ID = 1, Name = "Amitabh"
};
// Create an output object (discount)
var discount = new CustomerDiscount();
// Create a new rule for xmas seasson
SeasonDiscount seasonal = new SeasonDiscount(new DateTime(2019, 12, 15), new DateTime(2019, 12, 25), 5);
// Populate the engine
var engine = new RulesEngine(component: customer, output: discount);
engine.AddRule(new Rule(seasonal));
// Run the rule
var result = engine.RunAllRules();
// Check if we got the discount
Console.WriteLine($"Seasonal discount {discount.Discount}");
// Let's inspect the result
Console.WriteLine(result);
}
public void CheckRuleAddition()
{
RulesEngine ruleEngine = new RulesEngine("newOrder");
ruleEngine.AddRule("payment", "make payment;send email");
Assert.AreEqual("newOrder-payment-make payment;send email", ruleEngine.GetRule("newOrder"));
}
public void RequetsPerHour_10Min_RuleLocationUS_Success()
{
var retrieveTokenInfoMock = new Mock<IRetrieveTokenInfo>(MockBehavior.Strict);
retrieveTokenInfoMock.Setup(s => s.GetTokenInfo(It.IsAny<string>()))
.Returns(new TokenInfo()
{ Location = "US", NoOfTimesCalledInLastHour = 89, LastRequestTime = DateTime.Now.AddHours(-3) });
IRulesEngine ruleEngine = new RulesEngine();
ruleEngine.AddRule(new RuleRequetsPerHour());
ruleEngine.AddRule(new Rule10MinPassedSinceLastCall());
ruleEngine.AddRule(new RuleLocationUS());
IResource resource1 = new Resource1("tkn", ruleEngine, retrieveTokenInfoMock.Object);
var result = resource1.CanContinue();
Assert.IsTrue(result);
}
static void DelegateExample()
{
// Create EngineAttributes with Name
var engineOptions = new EngineAttributes {
Name = "MyEngine"
};
// Instantiate the RulesEngine with option
var myEngine = new RulesEngine(engineOptions);
// Now add Lambda rule
myEngine.AddRule(new Rule((c, o) => { Console.WriteLine("Hello, world"); return(true); }));
// Next, add a delegate method
myEngine.AddRule(new Rule(ruleDelegate));
myEngine.RunAllRules();
// Output:
// Hello, world
// ruleDelegate called
}
static void RuleClassExample()
{
/**
* Create the component to initialize the RulesEngine
* We don't HAVE to have a component, the rules can still run
*/
var bigB = new Customer
{
ID = 1,
Name = "Amitabh",
Birthdate = new DateTime(1942, 10, 11),
FirstPurchase = new DateTime(2005, 1, 2),
};
/**
* Create an output object for Rules Engine
* We don't HAVE to have an output object
*/
var discount = new CustomerDiscount();
// Create Engine Attributes
var engineAttributes = new EngineAttributes {
Component = bigB, Output = discount
};
// We can add individual rules or an array of rules
var rulesArray = new Rule[] { new Rule(seniorCitizenDiscount, ruleName: "Senior") };
// Start the engine with attributes and initial rules list
var engine = new RulesEngine(engineAttributes, rulesArray);
// We are adding multiple rules based on the same class, so we must name them explicitly
engine.AddRule(new Rule(new LoyaltyDiscount(1, 5), ruleName: "L1"));
engine.AddRule(new Rule(new LoyaltyDiscount(5, 8), ruleName: "L2"));
engine.AddRule(new Rule(new LoyaltyDiscount(10, 10), ruleName: "L3"));
Console.WriteLine(engine.RunAllRules());
}
public void RuleLocationUS_Fail()
{
var retrieveTokenInfoMock = new Mock<IRetrieveTokenInfo>(MockBehavior.Strict);
retrieveTokenInfoMock.Setup(s => s.GetTokenInfo(It.IsAny<string>()))
.Returns(new TokenInfo()
{ Location = "EU", NoOfTimesCalledInLastHour = 100, LastRequestTime = DateTime.Now.AddHours(-3) });
IRulesEngine ruleEngine = new RulesEngine();
ruleEngine.AddRule(new RuleLocationUS());
IResource resource1 = new Resource1("tkn", ruleEngine, retrieveTokenInfoMock.Object);
var result = resource1.CanContinue();
Assert.IsFalse(result);
}
static void BasicExample()
{
// Create an empty RulesEngine
var myRules = new RulesEngine();
// Add a lambda rule to the engine
myRules.AddRule(new Rule((component, output) => { Console.WriteLine("Hello, world"); return(true); }));
// Run the engine, it will print Hello, world
var result = myRules.RunAllRules();
// Hello, world
// Result class contains detailed object graph
// Which can be accessed thru properties
// It's ToString() returns a Json string
Console.WriteLine(result);
}
public CustomerController() //: this(new CustomerLogic())
{
_customerLogic = new CustomerLogic();
RulesEngine.AddRule <string>(nameof(EmailUniqueAttribute), _customerLogic.IsEmailUnique);
}
