private async Task Commit(AppendOnlyCatalogWriter writer, CantonCatalogItem[] batchItems)
{
var orderedBatch = batchItems.ToList();
orderedBatch.Sort(CantonCatalogItem.Compare);
int lastHighestCommit = 0;
DateTime? latestPublished = null;
// add the items to the writer
foreach (var orderedItem in orderedBatch)
{
lastHighestCommit = orderedItem.CantonCommitId + 1;
writer.Add(orderedItem);
}
Task cursorTask = null;
// only save the cursor if we did something
if (lastHighestCommit > 0)
{
// find the most recent package
latestPublished = batchItems.Select(c => c.Published).OrderByDescending(d => d).FirstOrDefault();
// update the cursor
JObject obj = new JObject();
// add one here since we are already added the current number
obj.Add("cantonCommitId", lastHighestCommit);
Log("Cursor cantonCommitId: " + lastHighestCommit);
Cursor.Position = DateTime.UtcNow;
Cursor.Metadata = obj;
cursorTask = Cursor.Save();
}
if (writer.Count > 0)
{
// perform the commit
Stopwatch timer = new Stopwatch();
timer.Start();
IGraph commitData = PackageCatalog.CreateCommitMetadata(writer.RootUri, latestPublished, latestPublished);
// commit
await writer.Commit(DateTime.UtcNow, commitData, CancellationToken.None);
timer.Stop();
Console.WriteLine("Commit duration: " + timer.Elapsed);
}
if (cursorTask != null)
{
await cursorTask;
}
}