public async Task Connect(TransientStreamSubscriptionConnectionSettings connectionSettings)
{
_streamId = connectionSettings.StreamId;
_aggregateType = connectionSettings.AggregateType;
_startPosition = connectionSettings.StreamPosition;
_subscriptionName = connectionSettings.SubscriptionName;
await ConnectAsync();
_startDate = DateTime.UtcNow;
}
//TODO - clean this up
public static void RegisterEventServeSubscriptions(this IApplicationBuilder applicationBuilder)
{
var rootManager = applicationBuilder.ApplicationServices.GetRequiredService <ISubscriptionRootManager>();
var subscriptionsTask = rootManager.GetSubscriptions();
Task.WaitAll(subscriptionsTask);
var subscriptions = subscriptionsTask.Result;
//Start up internal subscriptions
using (var scope = applicationBuilder.ApplicationServices.CreateScope())
{
var manager = scope.ServiceProvider.GetRequiredService <ISubscriptionManager>();
var managerProfiles = scope.ServiceProvider.GetServices <TransientSubscriptionProfile>();
foreach (var profile in managerProfiles.Where(x => x.GetType() == typeof(SubscriptionManagerProfile)))
{
//Fetch a new instance persistent subscription from the IoC container
var subscription = applicationBuilder.ApplicationServices.GetRequiredService <ITransientStreamSubscriptionConnection>();
foreach (var eventType in profile.SubscribedEvents)
{
var profileType = profile.GetType();
var messageObserverType = typeof(SubscriptionMessageObserver <,>).MakeGenericType(profileType, eventType);
var messageObserver = (IObserver <SubscriptionMessage>)Activator.CreateInstance(messageObserverType, applicationBuilder.ApplicationServices, profile.Filter);
subscription.Subscribe(messageObserver);
}
var subId = Guid.NewGuid();
var connectionSettings = new TransientStreamSubscriptionConnectionSettings(subId,
profile.GetType().Name,
profile.StreamPosition,
profile.Filter.SubscribedStreamId,
profile.Filter.AggregateType?.Name);
manager.Add(subId, subscription, connectionSettings).Wait();
manager.Connect(subId).Wait();
}
}
//Start up transient subscriptions
using (var scope = applicationBuilder.ApplicationServices.CreateScope())
{
var manager = scope.ServiceProvider.GetRequiredService <ISubscriptionManager>();
var profiles = scope.ServiceProvider.GetServices <TransientSubscriptionProfile>();
foreach (var profile in profiles.Where(x => x.GetType() != typeof(SubscriptionManagerProfile)))
{
if (profile.Disabled)
{
continue;
}
//Fetch a new instance persistent subscription from the IoC container
var subscription = applicationBuilder.ApplicationServices.GetRequiredService <ITransientStreamSubscriptionConnection>();
foreach (var eventType in profile.SubscribedEvents)
{
var profileType = profile.GetType();
var messageObserverType = typeof(SubscriptionMessageObserver <,>).MakeGenericType(profileType, eventType);
var messageObserver = (IObserver <SubscriptionMessage>)Activator.CreateInstance(messageObserverType, applicationBuilder.ApplicationServices, profile.Filter);
subscription.Subscribe(messageObserver);
}
var sub = subscriptions.FirstOrDefault(x => x.Name == profile.GetType().Name);
if (sub == default)
{
var subscriptionBase = rootManager.CreateTransientSubscription(profile.GetType().Name).Result;
var connectionSettings = new TransientStreamSubscriptionConnectionSettings(subscriptionBase.SubscriptionId,
profile.GetType().Name,
profile.StreamPosition,
profile.Filter.SubscribedStreamId,
profile.Filter.AggregateType?.Name);
manager.Add(subscriptionBase.SubscriptionId, subscription, connectionSettings).Wait();
rootManager.StartSubscription(subscriptionBase.SubscriptionId).Wait();
}
else
{
var connectionSettings = new TransientStreamSubscriptionConnectionSettings(sub.SubscriptionId,
profile.GetType().Name,
profile.StreamPosition,
profile.Filter.SubscribedStreamId,
profile.Filter.AggregateType?.Name);
manager.Add(sub.SubscriptionId, subscription, connectionSettings).Wait();
if (sub.Connected)
{
manager.Connect(sub.SubscriptionId).Wait();
}
}
}
}
//Start up persistent subscriptions
using (var scope = applicationBuilder.ApplicationServices.CreateScope())
{
var manager = scope.ServiceProvider.GetRequiredService <ISubscriptionManager>();
var profiles = scope.ServiceProvider.GetServices <PersistentSubscriptionProfile>();
foreach (var profile in profiles)
{
if (profile.Disabled)
{
continue;
}
//Fetch a new instance persistent subscription from the IoC container
var connection = applicationBuilder.ApplicationServices.GetRequiredService <IPersistentStreamSubscriptionConnection>();
foreach (var eventType in profile.SubscribedEvents)
{
var profileType = profile.GetType();
var messageObserverType = typeof(SubscriptionMessageObserver <,>).MakeGenericType(profileType, eventType);
var messageObserver = (IObserver <SubscriptionMessage>)Activator.CreateInstance(messageObserverType, applicationBuilder.ApplicationServices, profile.Filter);
connection.Subscribe(messageObserver);
var resetObserverType = typeof(PersistentSubscriptionResetObserver <>).MakeGenericType(profileType);
var resetObserver = (IObserver <PersistentSubscriptionResetEvent>)Activator.CreateInstance(resetObserverType, applicationBuilder.ApplicationServices);
connection.Subscribe(resetObserver);
}
var sub = subscriptions.FirstOrDefault(x => x.Name == profile.GetType().Name);
SetupPersistentSubscription(
sub?.SubscriptionId,
profile.GetType().Name,
profile.Filter.SubscribedStreamId,
profile.Filter.AggregateType?.Name,
sub == null ? false : sub.Connected,
connection,
rootManager,
manager);
}
}
//Start up partitioned projections
using (var scope = applicationBuilder.ApplicationServices.CreateScope())
{
var manager = scope.ServiceProvider.GetRequiredService <ISubscriptionManager>();
var profiles = scope.ServiceProvider.GetServices(typeof(IPartitionedProjectionProfile));
var profileTypes = ServiceRegistrationCache.ProjectionProfileTypes;
foreach (var profileType in profileTypes)
{
var profile = scope.ServiceProvider.GetRequiredService(profileType) as IPartitionedProjectionProfile;
//Fetch a new instance persistent subscription from the IoC container
var connection = applicationBuilder.ApplicationServices.GetRequiredService <IPersistentStreamSubscriptionConnection>();
foreach (var eventType in profile.SubscribedEvents)
{
var observerType = typeof(PartitionedProjectionObserver <,>).MakeGenericType(profile.ProjectionType, eventType);
var observer = (IObserver <SubscriptionMessage>)Activator.CreateInstance(observerType, applicationBuilder.ApplicationServices, profile.Filter);
connection.Subscribe(observer);
var resetObserverType = typeof(PartitionedProjectionResetObserver <>).MakeGenericType(profile.ProjectionType);
var resetObserver = (IObserver <PersistentSubscriptionResetEvent>)Activator.CreateInstance(resetObserverType, applicationBuilder.ApplicationServices);
connection.Subscribe(resetObserver);
}
var sub = subscriptions.FirstOrDefault(x => x.Name == profile.GetType().Name);
SetupPersistentSubscription(
sub?.SubscriptionId,
profile.GetType().Name,
profile.Filter.SubscribedStreamId,
profile.Filter.AggregateType?.Name,
sub == null ? false : sub.Connected,
connection,
rootManager,
manager);
}
}
//Setup partitioned projection queries
using (var scope = applicationBuilder.ApplicationServices.CreateScope())
{
var manager = scope.ServiceProvider.GetRequiredService <ISubscriptionManager>();
var profiles = scope.ServiceProvider.GetServices <IPartitionedProjectionProfile>();
foreach (var profile in profiles)
{
foreach (var eventType in profile.SubscribedEvents)
{
var handlerType = typeof(IPartitionedProjectionEventHandler <,>).MakeGenericType(profile.ProjectionType, eventType);
//Register the handler
//var observerType = typeof(PartitionedProjectionObserver<,>).MakeGenericType(profile.ProjectionType, eventType);
//var observer = (IObserver<SubscriptionMessage>)Activator.CreateInstance(observerType, applicationBuilder.ApplicationServices, profile.Filter);
//connection.Subscribe(observer);
//var resetObserverType = typeof(PartitionedProjectionResetObserver<>).MakeGenericType(profile.ProjectionType);
//var resetObserver = (IObserver<PersistentSubscriptionResetEvent>)Activator.CreateInstance(resetObserverType, applicationBuilder.ApplicationServices);
}
}
}
//Start up projections
using (var scope = applicationBuilder.ApplicationServices.CreateScope())
{
var manager = scope.ServiceProvider.GetRequiredService <ISubscriptionManager>();
var profiles = scope.ServiceProvider.GetServices <ProjectionProfile>();
foreach (var profile in profiles)
{
//Fetch a new instance persistent subscription from the IoC container
var connection = applicationBuilder.ApplicationServices.GetRequiredService <IPersistentStreamSubscriptionConnection>();
foreach (var eventType in profile.SubscribedEvents)
{
var observerType = typeof(ProjectionObserver <,>).MakeGenericType(profile.ProjectionType, eventType);
var observer = (IObserver <SubscriptionMessage>)Activator.CreateInstance(observerType, applicationBuilder.ApplicationServices, profile.Filter);
connection.Subscribe(observer);
var resetObserverType = typeof(PartitionedProjectionResetObserver <>).MakeGenericType(profile.ProjectionType);
var resetObserver = (IObserver <PersistentSubscriptionResetEvent>)Activator.CreateInstance(resetObserverType, applicationBuilder.ApplicationServices);
connection.Subscribe(resetObserver);
}
var sub = subscriptions.FirstOrDefault(x => x.Name == profile.GetType().Name);
SetupPersistentSubscription(
sub?.SubscriptionId,
profile.GetType().Name,
profile.Filter.SubscribedStreamId,
profile.Filter.AggregateType?.Name,
sub == null ? false : sub.Connected,
connection,
rootManager,
manager);
}
}
}
