/// <summary>
/// Waits until a saga exists with the specified correlationId
/// </summary>
/// <param name="correlationId"></param>
/// <param name="timeout"></param>
/// <returns></returns>
public async Task <Guid?> Exists(Guid correlationId, TimeSpan?timeout = default)
{
if (_querySagaRepository == null)
{
throw new InvalidOperationException("The repository does not support Query operations");
}
var giveUpAt = DateTime.Now + (timeout ?? TestTimeout);
var query = new SagaQuery <TSaga>(x => x.CorrelationId == correlationId);
while (DateTime.Now < giveUpAt)
{
var saga = (await _querySagaRepository.Find(query).ConfigureAwait(false)).FirstOrDefault();
if (saga != Guid.Empty)
{
return(saga);
}
await Task.Delay(10).ConfigureAwait(false);
}
return(default);
public static Task <IEnumerable <Guid> > Where <TSaga>(this IQuerySagaRepository <TSaga> source, Expression <Func <TSaga, bool> > filter)
where TSaga : class, ISaga
{
return(source.Find(new SagaQuery <TSaga>(filter)));
}