public async Task DeleteVersions(IEnumerable <PublishedProvider> publishedProviders)
{
Guard.ArgumentNotNull(publishedProviders, nameof(publishedProviders));
IEnumerable <KeyValuePair <string, PublishedProviderVersion> > versionsToDelete = publishedProviders.Select(m =>
new KeyValuePair <string, PublishedProviderVersion>(m.PartitionKey, m.Current));
List <Task> allTasks = new List <Task>();
SemaphoreSlim throttler = new SemaphoreSlim(initialCount: _publishingEngineOptions.PublishedProviderSaveVersionsConcurrencyCount);
foreach (var versions in versionsToDelete.ToBatches(10))
{
await throttler.WaitAsync();
allTasks.Add(
Task.Run(async() =>
{
try
{
try
{
await _versionRepositoryPolicy.ExecuteAsync(() => _versionRepository.DeleteVersions(versions));
}
catch (Exception ex)
{
_logger.Error(ex, "Failed to delete published provider versions");
throw;
}
}
finally
{
throttler.Release();
}
}));
}
await TaskHelper.WhenAllAndThrow(allTasks.ToArray());
}
