public async Task When_exception_throw_by_all_stream_subscriber_then_should_drop_subscription_with_reason_SubscriberError()
{
using (var fixture = GetFixture())
{
using (var store = await fixture.GetStreamStore())
{
var eventReceivedException = new TaskCompletionSource <SubscriptionDroppedReason>();
AllStreamMessageReceived messageReceived = (_, __) =>
{
throw new Exception();
};
AllSubscriptionDropped subscriptionDropped = (_, reason, __) =>
{
eventReceivedException.SetResult(reason);
};
string streamId = "stream-1";
using (store.SubscribeToAll(
null,
messageReceived,
subscriptionDropped))
{
await store.AppendToStream(streamId,
ExpectedVersion.NoStream,
new NewStreamMessage(Guid.NewGuid(), "type", "{}"));
var droppedReason = await eventReceivedException.Task.WithTimeout();
droppedReason.ShouldBe(SubscriptionDroppedReason.SubscriberError);
}
}
}
}
protected abstract IAllStreamSubscription SubscribeToAllInternal(
long?fromPosition,
AllStreamMessageReceived streamMessageReceived,
AllSubscriptionDropped subscriptionDropped,
HasCaughtUp hasCaughtUp,
bool prefetchJsonData,
string name);
public AllStreamSubscription(
long?continueAfterPosition,
IReadonlyStreamStore readonlyStreamStore,
IObservable <Unit> streamStoreAppendedNotification,
AllStreamMessageReceived streamMessageReceived,
AllSubscriptionDropped subscriptionDropped,
HasCaughtUp hasCaughtUp,
bool prefetchJsonData,
string name)
{
FromPosition = continueAfterPosition;
LastPosition = continueAfterPosition;
_nextPosition = continueAfterPosition + 1 ?? Position.Start;
_readonlyStreamStore = readonlyStreamStore;
_streamMessageReceived = streamMessageReceived;
_prefetchJsonData = prefetchJsonData;
_subscriptionDropped = subscriptionDropped ?? ((_, __, ___) => { });
_hasCaughtUp = hasCaughtUp ?? (_ => { });
Name = string.IsNullOrWhiteSpace(name) ? Guid.NewGuid().ToString() : name;
readonlyStreamStore.OnDispose += ReadonlyStreamStoreOnOnDispose;
_notification = streamStoreAppendedNotification.Subscribe(_ =>
{
_streamStoreNotification.Set();
});
Task.Run(PullAndPush);
s_logger.Info(
"AllStream subscription created {name} continuing after position {position}",
Name,
continueAfterPosition?.ToString() ?? "<null>");
}
protected override IAllStreamSubscription SubscribeToAllInternal(
long?fromPosition,
AllStreamMessageReceived streamMessageReceived,
AllSubscriptionDropped subscriptionDropped,
HasCaughtUp hasCaughtUp,
string name)
{
throw new NotImplementedException();
}
private IAllStreamSubscription SubscribeToAll(
AllStreamMessageReceived streamMessageReceived,
AllSubscriptionDropped subscriptionDropped)
{
_streamMessageReceived = streamMessageReceived;
_subscriptionDropped = subscriptionDropped;
var mock = new Mock <IAllStreamSubscription>();
mock.Setup(subscription => subscription.Name).Returns($"AllStreamSubscription<{Guid.NewGuid()}>");
_allStreamSubscription = mock.Object;
return(_allStreamSubscription);
}
public IAllStreamSubscription SubscribeToAll(long?continueAfterPosition, AllStreamMessageReceived streamMessageReceived,
AllSubscriptionDropped subscriptionDropped = null, HasCaughtUp hasCaughtUp = null, bool prefetchJsonData = true,
string name = null)
{
return(new AllStreamSubscription(
continueAfterPosition,
this,
new PollingStreamStoreNotifier(this),
streamMessageReceived,
subscriptionDropped,
hasCaughtUp,
prefetchJsonData,
name));
}
protected override IAllStreamSubscription SubscribeToAllInternal(
long?fromPosition,
AllStreamMessageReceived streamMessageReceived,
AllSubscriptionDropped subscriptionDropped,
HasCaughtUp hasCaughtUp,
bool prefetchJsonData,
string name)
=> new AllStreamSubscription(
fromPosition,
this,
GetStoreObservable,
streamMessageReceived,
subscriptionDropped,
hasCaughtUp,
prefetchJsonData,
name);
protected override IAllStreamSubscription SubscribeToAllInternal(
long?fromPosition,
AllStreamMessageReceived streamMessageReceived,
AllSubscriptionDropped subscriptionDropped,
HasCaughtUp hasCaughtUp,
string name)
{
return(new AllStreamSubscription(
fromPosition,
this,
GetStoreObservable,
streamMessageReceived,
subscriptionDropped,
hasCaughtUp,
name));
}
public IAllStreamSubscription SubscribeToAll(
long?continueAfterPosition,
AllStreamMessageReceived streamMessageReceived,
AllSubscriptionDropped subscriptionDropped = null,
HasCaughtUp hasCaughtUp = null,
bool prefetchJsonData = true,
string name = null)
=> Trace(
nameof(SubscribeToAll),
"all",
() => _streamStore.SubscribeToAll(
continueAfterPosition,
streamMessageReceived,
subscriptionDropped,
hasCaughtUp,
prefetchJsonData,
name));
public IAllStreamSubscription SubscribeToAll(
long?continueAfterPosition,
AllStreamMessageReceived streamMessageReceived,
AllSubscriptionDropped subscriptionDropped = null,
HasCaughtUp hasCaughtUp = null,
string name = null)
{
Ensure.That(streamMessageReceived, nameof(streamMessageReceived)).IsNotNull();
GuardAgainstDisposed();
return(SubscribeToAllInternal(continueAfterPosition,
streamMessageReceived,
subscriptionDropped,
hasCaughtUp,
name));
}
protected override IAllStreamSubscription SubscribeToAllInternal(
long?fromPosition,
AllStreamMessageReceived streamMessageReceived,
AllSubscriptionDropped subscriptionDropped,
HasCaughtUp hasCaughtUp,
bool prefetchJsonData,
string name)
{
return(new AllStreamSubscription(
fromPosition,
this,
_subscriptions,
streamMessageReceived,
subscriptionDropped,
hasCaughtUp,
prefetchJsonData,
name));
}
public IAllStreamSubscription SubscribeToAll(
long?continueAfterPosition,
AllStreamMessageReceived streamMessageReceived,
AllSubscriptionDropped subscriptionDropped = null,
HasCaughtUp hasCaughtUp = null,
bool prefetchJsonData = true,
string name = null)
{
GuardAgainstDisposed();
return(new AllStreamSubscription(
continueAfterPosition,
this,
_streamStoreNotifier.Value,
streamMessageReceived,
subscriptionDropped,
hasCaughtUp,
prefetchJsonData,
name));
}