private TcpPackage CreateSubscriptionPackage()
{
var dto = new ClientMessage.SubscribeToStream(_streamId, _resolveLinkTos);
return new TcpPackage(TcpCommand.SubscribeToStream,
_userCredentials != null ? TcpFlags.Authenticated : TcpFlags.None,
_correlationId,
_userCredentials != null ? _userCredentials.Username : null,
_userCredentials != null ? _userCredentials.Password : null,
dto.Serialize());
}
public Task<EventStoreSubscription> Subscribe(string streamId, bool resolveLinkTos, Action<ResolvedEvent> eventAppeared, Action subscriptionDropped)
{
var id = Guid.NewGuid();
var eventStoreSubscription = new EventStoreSubscription(id, streamId, this, eventAppeared, subscriptionDropped);
var subscriptionTaskPair = new SubscriptionTaskPair(eventStoreSubscription);
if (!_subscriptions.TryAdd(id, subscriptionTaskPair))
throw new Exception("Failed to add subscription. Concurrency failure.");
var subscribe = new ClientMessage.SubscribeToStream(streamId, resolveLinkTos);
var pkg = new TcpPackage(TcpCommand.SubscribeToStream, id, subscribe.Serialize());
_connection.EnqueueSend(pkg.AsByteArray());
return subscriptionTaskPair.TaskCompletionSource.Task;
}
public Task Subscribe(string stream, Action<RecordedEvent, Position> eventAppeared, Action subscriptionDropped)
{
var id = Guid.NewGuid();
var source = new TaskCompletionSource<object>();
if (_subscriptions.TryAdd(id, new Subscription(source, id, stream, eventAppeared, subscriptionDropped)))
{
var subscribe = new ClientMessage.SubscribeToStream(stream);
var pkg = new TcpPackage(TcpCommand.SubscribeToStream, id, subscribe.Serialize());
_connection.EnqueueSend(pkg.AsByteArray());
}
else
{
source.SetException(new Exception("Failed to add subscription. Concurrency failure."));
}
return source.Task;
}