public async Task <PersistentSubscription> SubscribeAsync(string streamName, string groupName,
Func <PersistentSubscription, ResolvedEvent, int?, CancellationToken, Task> eventAppeared,
Action <PersistentSubscription, SubscriptionDroppedReason, Exception?>?subscriptionDropped = null,
UserCredentials?userCredentials = null, int bufferSize = 10, bool autoAck = true,
CancellationToken cancellationToken = default)
{
if (streamName == null)
{
throw new ArgumentNullException(nameof(streamName));
}
if (groupName == null)
{
throw new ArgumentNullException(nameof(groupName));
}
if (eventAppeared == null)
{
throw new ArgumentNullException(nameof(eventAppeared));
}
if (streamName == string.Empty)
{
throw new ArgumentException($"{nameof(streamName)} may not be empty.", nameof(streamName));
}
if (groupName == string.Empty)
{
throw new ArgumentException($"{nameof(groupName)} may not be empty.", nameof(groupName));
}
if (bufferSize <= 0)
{
throw new ArgumentOutOfRangeException(nameof(bufferSize));
}
var operationOptions = Settings.OperationOptions.Clone();
operationOptions.TimeoutAfter = new TimeSpan?();
var call = new PersistentSubscriptions.PersistentSubscriptions.PersistentSubscriptionsClient(
await SelectCallInvoker(cancellationToken).ConfigureAwait(false)).Read(EventStoreCallOptions.Create(
Settings, operationOptions, userCredentials, cancellationToken));
return(await PersistentSubscription.Confirm(call, new ReadReq.Types.Options {
BufferSize = bufferSize,
GroupName = groupName,
StreamIdentifier = streamName,
UuidOption = new ReadReq.Types.Options.Types.UUIDOption {
Structured = new Empty()
}
}, autoAck, eventAppeared, subscriptionDropped ?? delegate { }, cancellationToken).ConfigureAwait(false));
}
public EventStorePersistentSubscriptionsClient(EventStoreClientSettings?settings) : base(settings,
new Dictionary <string, Func <RpcException, Exception> > {
[Constants.Exceptions.PersistentSubscriptionDoesNotExist] = ex => new
PersistentSubscriptionNotFoundException(
ex.Trailers.First(x => x.Key == Constants.Exceptions.StreamName).Value,
ex.Trailers.First(x => x.Key == Constants.Exceptions.GroupName).Value, ex),
[Constants.Exceptions.MaximumSubscribersReached] = ex => new
MaximumSubscribersReachedException(
ex.Trailers.First(x => x.Key == Constants.Exceptions.StreamName).Value,
ex.Trailers.First(x => x.Key == Constants.Exceptions.GroupName).Value, ex),
[Constants.Exceptions.PersistentSubscriptionDropped] = ex => new
PersistentSubscriptionDroppedByServerException(
ex.Trailers.First(x => x.Key == Constants.Exceptions.StreamName).Value,
ex.Trailers.First(x => x.Key == Constants.Exceptions.GroupName).Value, ex)
})
{
_client = new PersistentSubscriptions.PersistentSubscriptions.PersistentSubscriptionsClient(CallInvoker);
_log = Settings.LoggerFactory?.CreateLogger <EventStorePersistentSubscriptionsClient>()
?? new NullLogger <EventStorePersistentSubscriptionsClient>();
}
