public void Initialize()
{
connection = new SqliteConnection("DataSource=:memory:");
connection.Open();
options = new DbContextOptionsBuilder <KlantContext>()
.UseSqlite(connection)
.Options;
using (var context = new KlantContext(options))
{
context.Database.EnsureCreated();
}
_context = new TestBusContext();
var services = new ServiceCollection();
services.AddTransient <ICommandPublisher, CommandPublisher>();
services.AddSingleton <DbContextOptions>(options);
services.AddSingleton <KlantContext>();
services.AddTransient <IKlantDatamapper, KlantDatamapper>();
services.AddSingleton <IBusContext <IConnection> >(_context);
services.AddTransient <IEventPublisher, EventPublisher>();
var builder = new MicroserviceHostBuilder()
.RegisterDependencies(services)
.WithContext(_context)
.AddCommandListener <KlantListener>();
_host = builder.CreateHost();
_host.StartListening();
Thread.Sleep(1000);
}
public static async Task ScrapeAuditLog(IBusContext <IConnection> mainContext, ServiceCollection collection,
DateTime startTime)
{
var exchangeName = "Audit_Bestelling " + Guid.NewGuid();
var connectionBuilder = new RabbitMQContextBuilder()
.ReadFromEnvironmentVariables().WithExchange(exchangeName);
var builder = new MicroserviceHostBuilder();
builder
.RegisterDependencies(collection)
.WithContext(connectionBuilder.CreateContext())
.ExitAfterIdleTime(new TimeSpan(0, 0, 2, 0))
.UseConventions();
builder.CreateHost().StartListeningInOtherThread();
var publisher = new CommandPublisher(mainContext);
var replayEventsCommand = new ReplayEventsCommand
{
ToTimestamp = startTime.Ticks,
ExchangeName = exchangeName
};
var result = await publisher.Publish <bool>(replayEventsCommand, "AuditlogReplayService",
"Minor.WSA.AuditLog.Commands.ReplayEventsCommand");
}
public void UseConventionsRegistersProperTopics(string messageText)
{
// Arrange
var testContext = new TestBusContext();
var hostBuilder = new MicroserviceHostBuilder().WithBusContext(testContext);
// Act
hostBuilder.UseConventions();
hostBuilder.CreateHost().Start();
// Assert
var message = new DummyEvent("IrrelevantTopic")
{
DummyText = messageText
};
new EventPublisher(testContext).Publish(message);
Thread.Sleep(WaitTime);
Assert.IsNull(EventListenerDummy.HandlesResult);
Assert.IsNull(EventListenerDummy2.HandlesResult);
Assert.AreEqual(message, EventListenerDummy3.HandlesResult);
}
public void Initialize()
{
connection = new SqliteConnection("DataSource=:memory:");
connection.Open();
options = new DbContextOptionsBuilder <WebshopContext>()
.UseSqlite(connection)
.Options;
using (var context = new WebshopContext(options))
{
context.Database.EnsureCreated();
}
var services = new ServiceCollection();
services.AddSingleton <DbContextOptions>(options);
services.AddTransient <WebshopContext, WebshopContext>();
services.AddTransient <IArtikelDatamapper, ArtikelDatamapper>();
services.AddTransient <IKlantDatamapper, KlantDatamapper>();
_context = new TestBusContext();
var builder = new MicroserviceHostBuilder()
.RegisterDependencies(services)
.WithContext(_context)
.AddEventListener <MagazijnListener>();
_host = builder.CreateHost();
_host.StartListening();
}
public void FanInListenerReceivesAllMessages(string firstName, string lastName, string email, string phone)
{
// Arrange
using var busContext = new RabbitMqContextBuilder()
.WithConnectionString("amqp://*****:*****@localhost")
.WithExchange("TestExchange")
.CreateContext();
var builder = new MicroserviceHostBuilder()
.WithBusContext(busContext)
.AddEventListener <FanInEventListener>();
using var host = builder.CreateHost();
host.Start();
var publisher = new EventPublisher(busContext);
var personEvent = new PersonAddedEvent {
Person = new Person
{
FirstName = firstName,
LastName = lastName,
Email = email,
PhoneNumber = phone
}
};
// Act
publisher.Publish(personEvent);
Thread.Sleep(WaitTime);
// Assert
Assert.AreEqual(personEvent, FanInEventListener.ResultEvent);
}
private static void ConfigureNijn(IServiceCollection services)
{
ILoggerFactory loggerFactory = new LoggerFactory();
loggerFactory.AddProvider(
new ConsoleLoggerProvider(
(text, logLevel) => logLevel >= LogLevel.Debug, true));
var connectionBuilder = new RabbitMQContextBuilder()
.ReadFromEnvironmentVariables();
var nijnContext = connectionBuilder.CreateContext();
services.AddTransient <ICommandPublisher, CommandPublisher>();
services.AddTransient <IEventPublisher, EventPublisher>();
var builder = new MicroserviceHostBuilder()
.SetLoggerFactory(loggerFactory)
.RegisterDependencies(services)
.WithContext(nijnContext)
.UseConventions();
var host = builder.CreateHost();
host.CreateQueues();
host.StartListeningInOtherThread();
var logger = NijnLogger.CreateLogger <Program>();
logger.LogInformation("Started...");
}
private IBusContext <IConnection> CreateNijnConfig(IServiceCollection serviceCollection)
{
//Deprecated method, maar kan even niet anders
ILoggerFactory loggerFactory = new LoggerFactory();
loggerFactory.AddProvider(
new ConsoleLoggerProvider(
(text, logLevel) => logLevel >= LogLevel.Debug, true));
var connectionBuilder = new RabbitMQContextBuilder()
.ReadFromEnvironmentVariables();
_context = connectionBuilder.CreateContext();
var builder = new MicroserviceHostBuilder()
.SetLoggerFactory(loggerFactory)
.RegisterDependencies(serviceCollection)
.WithContext(_context)
.UseConventions();
var host = builder.CreateHost();
host.StartListeningInOtherThread();
return(_context);
}
private static void Main(string[] args)
{
var connectionString = Environment.GetEnvironmentVariable("SPRINTERDB");
var options = new DbContextOptionsBuilder <BeheerContext>()
.UseNpgsql(connectionString)
.Options;
ILoggerFactory loggerFactory = new LoggerFactory();
loggerFactory.AddProvider(
new ConsoleLoggerProvider(
(text, logLevel) => logLevel >= LogLevel.Debug, true));
var connectionBuilder = new RabbitMQContextBuilder()
.ReadFromEnvironmentVariables();
var nijnContext = connectionBuilder.CreateContext();
var services = new ServiceCollection();
services.AddTransient <ICommandPublisher, CommandPublisher>();
services.AddTransient <IEventPublisher, EventPublisher>();
services.AddSingleton <DbContextOptions>(options);
services.AddTransient <BeheerContext, BeheerContext>();
services.AddTransient <IArtikelDatamapper, ArtikelDatamapper>();
services.AddTransient <IBestellingDatamapper, BestellingDatamapper>();
services.AddSingleton <IBusContext <IConnection> >(nijnContext);
services.AddTransient <IKlantDatamapper, KlantDatamapper>();
var builder = new MicroserviceHostBuilder()
.SetLoggerFactory(loggerFactory)
.RegisterDependencies(services)
.WithContext(nijnContext)
.UseConventions();
var host = builder.CreateHost();
host.CreateQueues();
using (var context = new BeheerContext(options))
{
context.Database.EnsureDeleted();
context.Database.EnsureCreated();
if (!context.Artikelen.Any())
{
ScrapeAuditLog(nijnContext, services, DateTime.Now).Wait();
}
}
host.StartListeningInOtherThread();
var logger = NijnLogger.CreateLogger <Program>();
logger.LogInformation("Started...");
}
static void Main(string[] args)
{
ILoggerFactory loggerFactory = new LoggerFactory();
loggerFactory.AddProvider(
new ConsoleLoggerProvider(
(text, logLevel) => logLevel >= LogLevel.Debug, true));
//192.168.99.100
var connectionBuilder = new RabbitMQContextBuilder()
.WithExchange("MVM.EventExchange")
.WithAddress("192.168.99.100", 5672)
.WithCredentials(userName: "******", password: "******");
using (var context = connectionBuilder.CreateContext())
{
var builder = new MicroserviceHostBuilder()
.SetLoggerFactory(loggerFactory)
.RegisterDependencies((services) =>
{
services.AddTransient <IDataMapper, SinaasAppelDataMapper>();
})
.WithContext(context)
.UseConventions();
using (var host = builder.CreateHost())
{
host.StartListening();
Console.WriteLine("ServiceHost is listening to incoming events...");
Console.WriteLine("Press any key to quit.");
var publisher = new EventPublisher(context);
publisher.Publish(new PolisToegevoegdEvent("MVM.Polisbeheer.PolisToegevoegd")
{
Message = "Hey"
});
publisher.Publish(new HenkToegevoegdEvent("Test")
{
Test = "Oi"
});
int i = 0;
while (true)
{
Console.ReadKey();
Test(context, i);
Test(context, i * 100);
i++;
}
}
}
}
static void Main(string[] args)
{
ILoggerFactory loggerFactory = new LoggerFactory();
//Deprecated method, maar kan even niet anders
ConsoleLoggerOptions options = new ConsoleLoggerOptions();
loggerFactory.AddProvider(
new ConsoleLoggerProvider(
(text, logLevel) => logLevel >= LogLevel.Debug, true));
//192.168.99.100
var connectionBuilder = new RabbitMQContextBuilder()
.WithExchange("MVM.EventExchange")
.WithAddress("localhost", 5672)
.WithCredentials(userName: "******", password: "******");
var context = new TestBusContext();
var builder = new MicroserviceHostBuilder()
.SetLoggerFactory(loggerFactory)
.RegisterDependencies((services) =>
{
services.AddTransient <IDataMapper, SinaasAppelDataMapper>();
services.AddTransient <ICommandPublisher, CommandPublisher>();
services.AddTransient <IEventPublisher, EventPublisher>();
services.AddSingleton <IBusContext <IConnection> >(context);
})
.WithContext(context)
.UseConventions();
var host = builder.CreateHost();
host.StartListeningInOtherThread();
Console.WriteLine("ServiceHost is listening to incoming events...");
Console.WriteLine("Press any key to quit.");
var publisher = new EventPublisher(context);
var commandpublisher = new CommandPublisher(context);
publisher.Publish(new PolisToegevoegdEvent("MVM.Polisbeheer.PolisToegevoegd")
{
Message = "Hey"
});
publisher.Publish(new HenkToegevoegdEvent("Test")
{
Test = "Oi"
});
}
public void CreateHostReturnsHostWithContext()
{
// Arrange
var contextMock = new Mock <IBusContext <IConnection> >();
var context = contextMock.Object;
var builder = new MicroserviceHostBuilder();
builder.WithBusContext(context);
// Act
var host = builder.CreateHost();
// Arrange
Assert.AreSame(context, host.Context);
}
public void EventIsProperlyReceived(string data)
{
// Arrange
AuditLogContext dbContext = new AuditLogContext(_options);
TestBusContext testBusContext = new TestBusContext();
using var hostBuilder = new MicroserviceHostBuilder()
.WithBusContext(testBusContext)
.RegisterDependencies(services =>
{
services.AddSingleton(dbContext);
services.AddTransient <IAuditLogItemRepository, AuditLogItemRepository>();
})
.AddEventListener <IAuditLogItemRepository>()
.AddEventListener <AuditEventLoggingListener>();
using var host = hostBuilder.CreateHost();
host.Start();
DummyEvent evt = new DummyEvent("test.queue")
{
Text = data
};
IEventPublisher eventPublisher = new EventPublisher(testBusContext);
// Act
eventPublisher.Publish(evt);
Thread.Sleep(1500);
// Assert
AuditLogItem[] resultData = dbContext.AuditLogItems.ToArray();
Assert.AreEqual(1, resultData.Length);
string expectedData = JsonConvert.SerializeObject(evt);
var firstItem = resultData.First();
Assert.AreEqual(expectedData, firstItem.Data);
Assert.AreEqual(evt.Id.ToString(), firstItem.Id);
Assert.AreEqual(new DateTime(evt.Timestamp).ToFileTimeUtc(), firstItem.TimeStamp);
}
public void AddingListenerOnlyAddsRelevantMethod()
{
// Arrange
var testContext = new TestBusContext();
var builder = new MicroserviceHostBuilder().WithBusContext(testContext)
.WithQueueName("test.queue")
.AddEventListener <MethodEventListener>();
// Act
using var host = builder.CreateHost();
var result = host.Listeners.ToList();
// Assert
Assert.AreEqual(1, result.Count);
var firstItem = result.FirstOrDefault();
Assert.AreEqual("testPattern", firstItem?.TopicExpressions.FirstOrDefault());
}
public void UseConventionsRegistersProperCommandListeners()
{
// Arrange
var testContext = new TestBusContext();
var hostBuilder = new MicroserviceHostBuilder()
.WithBusContext(testContext);
// Act
hostBuilder.UseConventions();
hostBuilder.CreateHost().Start();
// Assert
var message = new GetAnimalsCommand();
ICommandPublisher publisher = new CommandPublisher(testContext);
Animal[] animals = publisher.PublishAsync <IEnumerable <Animal> >(message).Result.ToArray();
Assert.AreEqual(2, animals.Length);
}
public void AddingListenerRegistersProperCommandReceiver()
{
// Arrange
TestBusContext testContext = new TestBusContext();
MicroserviceHostBuilder hostBuilder = new MicroserviceHostBuilder()
.WithQueueName("test.queue")
.WithBusContext(testContext);
// Act
hostBuilder.AddEventListener <CommandListenerDummy>();
List <MicroserviceCommandListener> result = hostBuilder.CreateHost().CommandListeners.ToList();
// Assert
Assert.AreEqual(1, result.Count);
var firstItem = result.FirstOrDefault();
Assert.AreEqual("command.queue", firstItem?.Queue);
}
public void EventMessageHandledIsFiredOnIncomingMessageWithProperValues()
{
// Arrange
const string queueName = "test.queue";
const string topicExpression = "TestTopic";
var testContext = new TestBusContext();
var hostBuilder = new MicroserviceHostBuilder()
.WithBusContext(testContext)
.AddEventListener <EventListenerDummy>()
.WithQueueName(queueName);
using var host = hostBuilder.CreateHost();
host.Start();
EventMessage receivedEventMessage = null;
EventMessageHandledEventArgs receivedEventArgs = null;
host.EventMessageHandled += (eventMessage, args) =>
{
receivedEventMessage = eventMessage;
receivedEventArgs = args;
};
// Act
var message = new DummyEvent(topicExpression);
new EventPublisher(testContext).Publish(message);
Thread.Sleep(WaitTime);
// Assert
Assert.AreEqual(message.Type, receivedEventMessage.EventType);
Assert.AreEqual(message.Id, receivedEventMessage.CorrelationId);
Assert.AreEqual(message.Timestamp, receivedEventMessage.Timestamp);
Assert.AreEqual(queueName, receivedEventArgs.QueueName);
Assert.AreEqual(1, receivedEventArgs.TopicExpressions.Count());
Assert.AreEqual(topicExpression, receivedEventArgs.TopicExpressions.Single());
}
public void AddingListenerRegistersProperReceiver()
{
// Arrange
var testContext = new TestBusContext();
var hostBuilder = new MicroserviceHostBuilder().WithBusContext(testContext);
// Act
hostBuilder.AddEventListener <EventListenerDummy>();
hostBuilder.WithQueueName("test.queue");
hostBuilder.CreateHost().Start();
// Assert
var message = new DummyEvent("TestTopic");
new EventPublisher(testContext).Publish(message);
Thread.Sleep(WaitTime);
Assert.AreEqual(message, EventListenerDummy.HandlesResult);
}
public void EventListenerIsCalledWithCorrectEvent()
{
var serviceMock = new Mock <IServiceMock>(MockBehavior.Strict);
serviceMock.Setup(d => d.PerformAction());
using (var context = new TestBusContext())
{
var builder = new MicroserviceHostBuilder()
.RegisterDependencies((services) =>
{
services.AddSingleton(serviceMock.Object);
})
.WithContext(context)
.UseConventions();
using (var host = builder.CreateHost())
{
host.StartListening();
var eventPublisher = new EventPublisher(context);
var exampleEvent = new ExampleEvent("XMPL.ExampleEvent")
{
Message = "Example message."
};
eventPublisher.Publish(exampleEvent);
}
var eventListenerIsCalled = EventListenerMock.ResetEvent.WaitOne(1000);
Assert.IsTrue(eventListenerIsCalled);
var actualEvent = EventListenerMock.ExampleEvent;
Assert.AreEqual("XMPL.ExampleEvent", actualEvent.RoutingKey);
Assert.AreEqual("Example message.", actualEvent.Message);
serviceMock.VerifyAll();
}
}
/**
* An example implementation on how to set up a
* MicroserviceHost with RabbitMQ in the Main method
*
* Setting up a functioning RabbitMQ instance with docker is as easy as running:
* docker run -d -p 15672:15672 -p 5672:5672 rabbitmq:3-management
*/
static void Main(string[] args)
{
/*
* Logging is quite important, for this reason we first create
* a loggerfactory that will be used in the rest of the application
*
* This one outputs to the console
*/
using ILoggerFactory loggerFactory = LoggerFactory.Create(configure =>
{
configure.AddConsole().SetMinimumLevel(LogLevel.Error);
});
/*
* To reach the library classes, a static class has been put in place
* to register a logger
*/
MiffyLoggerFactory.LoggerFactory = loggerFactory;
RabbitMqLoggerFactory.LoggerFactory = loggerFactory;
/*
* Now that the logger is done, let's create a RabbitMq context with
* an exchange called MVM.EventExchange and a connection string
* that connects to a local RabbitMQ instance
*/
RabbitMqContextBuilder contextBuilder = new RabbitMqContextBuilder()
.WithExchange("MVM.EventExchange")
.WithConnectionString("amqp://*****:*****@localhost");
/*
* Now instantiate the context and ensure that it's disposed of by using a
* 'using' statement.
*/
using IBusContext <IConnection> context = contextBuilder.CreateContext();
/**
* Create a dummy database context for testing with an in-memory database
*/
PolisContext databaseContext = new PolisContext();
/**
* Now create a builder that will build our microservice host.
*
* First, register our logger by setting the logger factory,
* next we register any dependencies we might need, like a DBContext
* that is injected into our CommandListeners and EventListeners
*
* Since most of the inner workings of this framework are asynchronous, we
* strongly urge you to set up a loggerfactory to quickly find any errors going over the bus.
*
* Then, throw our context into the builder and lastly, ensure that
* all our event/command listeners are registered by calling UseConventions().
*
* UseConventions could be replaced by multiple AddEventListener calls.
*/
MicroserviceHostBuilder builder = new MicroserviceHostBuilder()
.SetLoggerFactory(loggerFactory)
// This method also accepts a service collection as input
.RegisterDependencies(services =>
{
services.AddSingleton(databaseContext);
})
.WithQueueName("ExampleService.Queue")
.WithBusContext(context)
.UseConventions();
/**
* Lastly, instantiate a host and ensure it starts
*/
using IMicroserviceHost host = builder.CreateHost();
host.Start();
/**
* Let's add a C# event listener for fun
*/
host.EventMessageReceived += (message, eventArgs) =>
{
Console.WriteLine("Received a EventMessage!");
};
/**
* Now let's pretend this service is running somewhere in a cluster
* and is receiving events, let's fire some events at it
*/
string[] names = { "Jack", "Jake", "Penny", "Robin", "Rick", "Vinny", "Spencer" };
IEventPublisher publisher = new EventPublisher(context, loggerFactory);
foreach (string name in names)
{
PolisToegevoegdEvent toegevoegdEvent = new PolisToegevoegdEvent
{
Polis = new Polis {
Klantnaam = name
}
};
publisher.PublishAsync(toegevoegdEvent);
}
/**
* Now let's wait 1 second for all the events to arrive and be processed
*/
Thread.Sleep(2000);
/**
* Now let's fire a command and retrieve a list of polissen
*/
ICommandPublisher commandPublisher = new CommandPublisher(context, loggerFactory);
HaalPolissenOpCommand command = new HaalPolissenOpCommand();
HaalPolissenOpCommandResult commandResult = commandPublisher.PublishAsync <HaalPolissenOpCommandResult>(command).Result;
/**
* Now, print the result!
*/
foreach (Polis polis in commandResult.Polissen)
{
Console.WriteLine($"Found polis for {polis.Klantnaam} with ID {polis.Id}");
}
/**
* Now let's see what happens if we send a mangled json event
*
* This should log a critical error in the console and tell you how you might be able to diagnose the problem.
*/
publisher.Publish(0, "MVM.Polisbeheer.PolisToegevoegd", Guid.Empty, "PolisToegevoegdEvent", "{[somerandomjson}]");
/**
* Lastly, let's see how the queue deals with exceptions on the other side
*/
ExceptionCommand exceptionCommand = new ExceptionCommand();
try
{
/**
* This will throw an exception in the receiver
*/
_ = commandPublisher.PublishAsync <ExceptionCommand>(exceptionCommand).Result;
}
catch (AggregateException expectedException)
{
DestinationQueueException destinationQueueException = expectedException.InnerExceptions.First() as DestinationQueueException;
/**
* Now the expectedException.Innerexception will reveal all the info we need
*/
Console.WriteLine($"{destinationQueueException?.InnerException?.GetType().Name} {destinationQueueException?.InnerException?.Message}");
Console.WriteLine($"Destination queue: {destinationQueueException?.DestinationQueueName}, " +
$"Reply queue: {destinationQueueException?.ReplyQueueName}, " +
$"Id: {destinationQueueException?.CorrelationId}");
}
}
public void Initialize()
{
connection = new SqliteConnection("DataSource=:memory:");
connection.Open();
options = new DbContextOptionsBuilder <BeheerContext>()
.UseSqlite(connection)
.Options;
using (var context = new BeheerContext(options))
{
context.Database.EnsureCreated();
var artikel = new Artikel
{
Artikelnummer = 1,
Beschrijving = "Grote fiets voor iedereen",
LeverbaarTot = new DateTime(2018, 5, 5),
LeverbaarVanaf = new DateTime(2017, 1, 1),
Naam = "Fiets",
Prijs = 40m,
Voorraad = 5
};
var artikel2 = new Artikel
{
Artikelnummer = 2,
Beschrijving = "HELE grote fiets voor iedereen",
LeverbaarTot = new DateTime(2018, 5, 5),
LeverbaarVanaf = new DateTime(2017, 1, 1),
Naam = "Fiets Groot",
Prijs = 100m,
Voorraad = 8
};
var klant = new Klant {
Voornaam = "Hans", Achternaam = "Van Huizen", Id = "1"
};
var klantDatamapper = new KlantDatamapper(context);
klantDatamapper.Insert(klant);
var datamapper = new ArtikelDatamapper(context);
datamapper.Insert(artikel);
datamapper.Insert(artikel2);
}
_context = new TestBusContext();
var services = new ServiceCollection();
services.AddTransient <ICommandPublisher, CommandPublisher>();
services.AddSingleton <DbContextOptions>(options);
services.AddTransient <BeheerContext, BeheerContext>();
services.AddTransient <IArtikelDatamapper, ArtikelDatamapper>();
services.AddTransient <IBestellingDatamapper, BestellingDatamapper>();
services.AddSingleton <IBusContext <IConnection> >(_context);
services.AddTransient <IEventPublisher, EventPublisher>();
services.AddTransient <IKlantDatamapper, KlantDatamapper>();
var builder = new MicroserviceHostBuilder()
.RegisterDependencies(services)
.WithContext(_context)
.AddCommandListener <BestellingListener>()
.AddCommandListener <BestellingListenerIntegratieTest>()
.AddEventListener <BestellingListener>();
_host = builder.CreateHost();
_host.StartListening();
}
