/// <summary>
/// Transforms the <see cref="SubscriptionOptionsDto"/> into a new <see cref="PersistentSubscriptionSettings"/>
/// </summary>
/// <param name="subscriptionOptions">The <see cref="SubscriptionOptionsDto"/> to transform</param>
/// <returns>A new <see cref="PersistentSubscriptionSettings"/></returns>
public static PersistentSubscriptionSettings ToPersistentSubscriptionSettings(this SubscriptionOptionsDto subscriptionOptions)
{
PersistentSubscriptionSettingsBuilder builder = PersistentSubscriptionSettings.Create();
if (subscriptionOptions.StreamPosition.HasValue)
{
switch (subscriptionOptions.StreamPosition.Value)
{
case StreamPosition.Start:
builder.StartFromBeginning();
break;
case StreamPosition.End:
builder.StartFromCurrent();
break;
default:
builder.StartFrom(subscriptionOptions.StreamPosition.Value);
break;
}
}
builder.ResolveLinkTos();
builder.WithMaxSubscriberCountOf(1);
builder.MinimumCheckPointCountOf(1);
builder.MaximumCheckPointCountOf(1);
return(builder.Build());
}
/// <summary>
/// Creates the persistent subscription from position.
/// </summary>
/// <param name="stream">The stream.</param>
/// <param name="groupName">Name of the group.</param>
/// <param name="position">The position.</param>
/// <returns></returns>
public async Task CreatePersistentSubscriptionFromPosition(String stream, String groupName, Int32 position)
{
PersistentSubscriptionSettingsBuilder settingsBuilder = PersistentSubscriptionSettings.Create()
.ResolveLinkTos().WithMaxRetriesOf(10).WithMessageTimeoutOf(TimeSpan.FromSeconds(10)).StartFrom(position);
await this.CreatePersistentSubscription(stream, groupName, settingsBuilder.Build());
}
private async Task CreateSubscription(string subscription, string eventTypeStream, PersistentSubscriptionSettingsBuilder settings)
{
try
{
await _conn.CreatePersistentSubscriptionAsync(eventTypeStream, subscription, settings, _credentials);
}
catch
{
// Already exists
}
}
