private async Task ExecuteAsync(Func <DbCollection, Task> cb,
CancellationToken cancellationToken = default
)
{
var dbCol = DbCollectionFactory.GetDatabaseAndCollection <TModel>(_options);
while (true)
{
try
{
await cb(dbCol);
break;
}
catch (DocumentClientException dce)
{
if (dce.StatusCode == HttpStatusCode.Conflict)
{
throw new EventStoreConcurrencyException($"A duplicated constraint (Unique Key) violation for {typeof(TModel).Name}.");
}
if (dce.StatusCode == HttpStatusCode.NotFound || dce.StatusCode == HttpStatusCode.Gone)
{
var createdDb = await _client.CreateDbColDatabaseAsync(_logger, dbCol, cancellationToken);
var createdCol = await _client.CreateDbColCollectionAsync(_logger, dbCol, cancellationToken);
if (createdDb || createdCol)
{
continue;
}
throw new EventStoreNotFoundException("Execution failure", dce);
}
if (dce.StatusCode == HttpStatusCode.ServiceUnavailable)
{
// Hmmm? this happens quite a bit locally.
throw new EventStoreAccessException(
"Cosmos is DOWN. Execution failure",
dce
);
}
throw;
}
}
}