/// <summary>
/// Adds a module to the current pipeline that replaces event with a projection.
/// </summary>
/// <remarks>
/// Projections are useful when an event needs to be serialized in order to reduce
/// the size and the complexity of the serialization output.
/// </remarks>
/// <typeparam name="TEvent">The type of the event.</typeparam>
/// <typeparam name="TToEvent">The type of the projected event.</typeparam>
/// <param name="eventPipelineConfigurator">
/// The <see cref="EventPipelineConfigurator{TEvent}"/> for the pipeline being configured.
/// </param>
/// <param name="eventConverter">
/// A <see cref="Func{TEvent, TToEvent}"/> that takes the event as input and returns a new object.
/// </param>
/// <returns>
/// A new <see cref="EventPipelineConfigurator{TToEvent}"/> instance so that multiple calls can be chained.
/// </returns>
public static EventPipelineConfigurator <TToEvent> ThenIsProjected <TEvent, TToEvent>(
this EventPipelineConfigurator <TEvent> eventPipelineConfigurator,
Func <TEvent, TToEvent> eventConverter
)
where TEvent : class
where TToEvent : class
{
if (eventPipelineConfigurator == null)
{
throw new ArgumentNullException(nameof(eventPipelineConfigurator));
}
if (eventConverter == null)
{
throw new ArgumentNullException(nameof(eventConverter));
}
var projectionPipelineModuleConfig = new ProjectionPipelineModuleConfig(
new EventProjection <TEvent, TToEvent>(eventConverter)
);
eventPipelineConfigurator
.Get <IPipeline>()
.AddModule <ProjectionPipelineModule, ProjectionPipelineModuleConfig>(
projectionPipelineModuleConfig
);
return(new EventPipelineConfigurator <TToEvent>(
eventPipelineConfigurator.Get <IServiceProvider>(),
eventPipelineConfigurator.Get <IPipeline>()
));
}
/// <summary>
/// Adds module to the current pipeline that queues the event in a queue
/// and pauses the execution of the current pipeline until the event is dequeued.
/// </summary>
/// <typeparam name="TEvent">The type of the event.</typeparam>
/// <param name="eventPipelineConfigurator">
/// The <see cref="EventPipelineConfigurator{TEvent}"/> for the pipeline being configured.
/// </param>
/// <param name="queueName">The name of the queue.</param>
/// <returns>
/// The same <see cref="EventPipelineConfigurator{TEvent}"/> instance so that multiple calls can be chained.
/// </returns>
public static EventPipelineConfigurator <TEvent> ThenIsQueuedTo <TEvent>(
this EventPipelineConfigurator <TEvent> eventPipelineConfigurator,
string queueName
)
where TEvent : class
{
if (eventPipelineConfigurator == null)
{
throw new ArgumentNullException(nameof(eventPipelineConfigurator));
}
if (queueName == null)
{
throw new ArgumentNullException(nameof(queueName));
}
var eventsQueueNamesService = eventPipelineConfigurator
.Get <IServiceProvider>()
.GetRequiredService <IEventsQueueNamesService>();
eventsQueueNamesService.RegisterQueueNameIfNotExists(queueName);
eventPipelineConfigurator
.Get <IPipeline>()
.AddModule <EnqueuePipelineModule, EnqueuePipelineModuleConfig>(
new EnqueuePipelineModuleConfig
{
QueueName = queueName
}
);
return(eventPipelineConfigurator);
}
public void Ctor_WithAllParameters_ShouldSetPropertiesFromParameters()
{
var eventPipelineConfigurator = new EventPipelineConfigurator <object>(
_serviceProviderMock.Object,
_pipeline
);
var pipeline = eventPipelineConfigurator.Get <IPipeline>();
var serviceProvider = eventPipelineConfigurator.Get <IServiceProvider>();
Assert.That(pipeline, Is.EqualTo(_pipeline));
Assert.That(serviceProvider, Is.EqualTo(_serviceProviderMock.Object));
}
public void Ctor_WithEventConfigurator_ShouldInheritPropertyValuesFromEventConfigurator()
{
var eventPipelineConfigurator = new EventPipelineConfigurator <object>(
_pipeline,
_eventConfigurator
);
var pipeline = eventPipelineConfigurator.Get <IPipeline>();
var serviceProvider = eventPipelineConfigurator.Get <IServiceProvider>();
Assert.That(pipeline, Is.EqualTo(_pipeline));
Assert.That(serviceProvider, Is.EqualTo(_serviceProviderMock.Object));
}
/// <summary>
/// Adds a module to the current pipeline that publishes the event to all the global subscriptions using a transmission method
/// configurable with the configurePublishTransmission parameter.
/// </summary>
/// <remarks>
/// This method can be used to configure a publication to multiple application instances with this <see cref="EventsContext"/>
/// </remarks>
/// <typeparam name="TEvent">The type of the event.</typeparam>
/// <param name="eventPipelineConfigurator">
/// The <see cref="EventPipelineConfigurator{TEvent}"/> for the pipeline being configured.
/// </param>
/// <param name="configurePublishTransmission">A delegate for configuring how the event is transmitted.</param>
/// <returns>The same <see cref="EventPipelineConfigurator{TEvent}"/> instance so that multiple calls can be chained.</returns>
public static EventPipelineConfigurator <TEvent> ThenIsPublishedToGlobalSubscriptions <TEvent>(
this EventPipelineConfigurator <TEvent> eventPipelineConfigurator,
Func <ConfigureTransmission, IPublishTransmissionConfiguration> configurePublishTransmission
)
where TEvent : class
{
if (configurePublishTransmission == null)
{
throw new ArgumentNullException(nameof(configurePublishTransmission));
}
var globalPublishingOptionsFactory = new ConfigureTransmission();
var senderTypeConfiguration = configurePublishTransmission(globalPublishingOptionsFactory);
var moduleConfig = new GlobalPublishPipelineModuleConfig
{
SenderType = senderTypeConfiguration.SenderType
};
if (moduleConfig.SenderType != null)
{
var serviceProvider = eventPipelineConfigurator.Get <IServiceProvider>();
var eventSenderExists = serviceProvider
.GetServices <IEventSender>()
.Any(x => x.GetType() == moduleConfig.SenderType);
if (!eventSenderExists)
{
throw new EventTransmissionPluginIsNotConfiguredException();
}
}
eventPipelineConfigurator
.Get <IPipeline>()
.AddModule <GlobalPublishPipelineModule, GlobalPublishPipelineModuleConfig>(
moduleConfig
);
return(eventPipelineConfigurator);
}
/// <summary>
/// Adds a module to the current pipeline that publishes the event to all the subscriptions in scope locally.
/// </summary>
/// <typeparam name="TEvent">The type of the event.</typeparam>
/// <param name="eventPipelineConfigurator">
/// The <see cref="EventPipelineConfigurator{TEvent}"/> for the pipeline being configured.
/// </param>
/// <returns>The same <see cref="EventPipelineConfigurator{TEvent}"/> instance so that multiple calls can be chained.</returns>
public static EventPipelineConfigurator <TEvent> ThenIsPublishedToScopedSubscriptions <TEvent>(
this EventPipelineConfigurator <TEvent> eventPipelineConfigurator
)
where TEvent : class
{
if (eventPipelineConfigurator == null)
{
throw new ArgumentNullException(nameof(eventPipelineConfigurator));
}
eventPipelineConfigurator
.Get <IPipeline>()
.AddModule <ScopedPublishPipelineModule, ScopedPublishPipelineModuleConfig>(
new ScopedPublishPipelineModuleConfig()
);
return(eventPipelineConfigurator);
}
/// <summary>
/// Adds an event filtering module to the current pipeline.
/// </summary>
/// <typeparam name="TEvent">The type of the event.</typeparam>
/// <param name="eventPipelineConfigurator">
/// The <see cref="EventPipelineConfigurator{TEvent}"/> for the pipeline being configured.
/// </param>
/// <param name="filter">
/// A <see cref="Func{TEvent, TResult}"/> that takes the event
/// as input and returns false if it should be filtered
/// (When an event is filtered any module configured after the filter won't be invoked).
/// </param>
/// <returns>
/// The same <see cref="EventPipelineConfigurator{TEvent}"/> instance so that multiple calls can be chained.
/// </returns>
public static EventPipelineConfigurator <TEvent> ThenIsFiltered <TEvent>(
this EventPipelineConfigurator <TEvent> eventPipelineConfigurator,
Func <TEvent, bool> filter
)
where TEvent : class
{
if (eventPipelineConfigurator == null)
{
throw new ArgumentNullException(nameof(eventPipelineConfigurator));
}
if (filter == null)
{
throw new ArgumentNullException(nameof(filter));
}
eventPipelineConfigurator.Get <IPipeline>()
.AddModule <FilterPipelineModule, FilterPipelineModuleConfig>(
new FilterPipelineModuleConfig(pipedEvent => filter((TEvent)pipedEvent))
);
return(eventPipelineConfigurator);
}
