/// <summary>
/// Gets the next catchup subscription configuration.
/// </summary>
/// <param name="eventStoreServerId">The event store server identifier.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns></returns>
public async Task <CatchupSubscriptionConfiguration> GetNextCatchupSubscriptionConfiguration(Guid eventStoreServerId, CancellationToken cancellationToken)
{
CatchupSubscriptionConfiguration result = null;
using (SubscriptionServiceConfigurationContext context = this.ContextResolver())
{
// Find the next subscription based on Create date (only 1 is returned to simplify processing)
Database.Models.CatchupSubscriptionConfiguration nextCatchUpSubscription = await context
.CatchupSubscriptionConfigurations
.Where(c => c.EventStoreServerId == eventStoreServerId)
.OrderBy(c => c.CreateDateTime).FirstOrDefaultAsync(cancellationToken);
// Check if we have found a subscription to process
if (nextCatchUpSubscription != null)
{
result = new CatchupSubscriptionConfiguration
{
Name = nextCatchUpSubscription.Name,
SubscriptionId = nextCatchUpSubscription.SubscriptionId,
EventStoreServerId = nextCatchUpSubscription.EventStoreServerId,
Position = nextCatchUpSubscription.Position,
StreamName = nextCatchUpSubscription.StreamName,
EndPointUri = nextCatchUpSubscription.EndPointUri,
CreateDateTime = nextCatchUpSubscription.CreateDateTime
};
}
}
return(result);
}
/// <summary>
/// Deletes the catch up subscription.
/// </summary>
/// <param name="catchUpSubscriptionId">The catch up subscription identifier.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <exception cref="NotFoundException">Catch Up Subscription Group with Id {catchUpSubscriptionId} not found</exception>
public async Task DeleteCatchUpSubscription(Guid catchUpSubscriptionId,
CancellationToken cancellationToken)
{
Guard.ThrowIfInvalidGuid(catchUpSubscriptionId, typeof(ArgumentNullException), "A catchup subscription Id must be provided");
using (SubscriptionServiceConfigurationContext context = this.ContextResolver())
{
Database.Models.CatchupSubscriptionConfiguration catchUpSubscriptionConfiguration = await context.CatchupSubscriptionConfigurations.Where(c => c.SubscriptionId == catchUpSubscriptionId)
.SingleOrDefaultAsync(cancellationToken);
if (catchUpSubscriptionConfiguration == null)
{
throw new NotFoundException($"Catch Up Subscription Group with Id {catchUpSubscriptionId} not found");
}
context.CatchupSubscriptionConfigurations.Remove(catchUpSubscriptionConfiguration);
await context.SaveChangesAsync(cancellationToken);
}
}
public async Task <CatchupSubscriptionConfiguration> GetCatchupSubscriptionConfiguration(Guid subscriptionId,
CancellationToken cancellationToken)
{
CatchupSubscriptionConfiguration result = new CatchupSubscriptionConfiguration();
using (SubscriptionServiceConfigurationContext context = this.ContextResolver())
{
Database.Models.CatchupSubscriptionConfiguration catchupSubscriptionConfiguration =
await context.CatchupSubscriptionConfigurations.Where(s => s.SubscriptionId == subscriptionId).SingleOrDefaultAsync(cancellationToken);
result = new CatchupSubscriptionConfiguration
{
EventStoreServerId = catchupSubscriptionConfiguration.EventStoreServerId,
EndPointUri = catchupSubscriptionConfiguration.EndPointUri,
Name = catchupSubscriptionConfiguration.Name,
StreamName = catchupSubscriptionConfiguration.StreamName,
Position = catchupSubscriptionConfiguration.Position,
SubscriptionId = catchupSubscriptionConfiguration.SubscriptionId,
CreateDateTime = catchupSubscriptionConfiguration.CreateDateTime
};
}
return(result);
}