private void TimerElapsed(object state)
{
if (_executing)
{
return;
}
_executing = true;
_nextRunDate = DateTime.MaxValue;
try
{
ActivatePendingDocuments();
}
catch (Exception e)
{
_log.ErrorException("Error when trying to activate temporal revision documents", e);
}
finally
{
var runDate = PendingRevisionsIndex.GetNextActivationDate(_database);
ResetTimer(runDate, SystemTime.UtcNow);
_executing = false;
}
}
private void ActivatePendingDocuments()
{
using (_database.DisableAllTriggersForCurrentThread())
{
var revisionKeys = PendingRevisionsIndex.GetRevisionsRequiringActivation(_database);
foreach (var revisionkey in revisionKeys)
{
_log.Info("Activating Temporal Document {0}", revisionkey);
// Establish a new transaction
var transactionInformation = new TransactionInformation {
Id = Guid.NewGuid().ToString(), Timeout = TimeSpan.FromMinutes(1)
};
// Get the current key from the revision key
var currentKey = revisionkey.Substring(0, revisionkey.IndexOf(TemporalConstants.TemporalKeySeparator, StringComparison.Ordinal));
// Mark the document as non-pending
_database.SetDocumentMetadata(revisionkey, transactionInformation, TemporalMetadata.RavenDocumentTemporalPending, false);
// Mark it in the history also
Etag historyEtag;
var history = _database.GetTemporalHistoryFor(currentKey, transactionInformation, out historyEtag);
history.Revisions.First(x => x.Key == revisionkey).Pending = false;
_database.SaveTemporalHistoryFor(currentKey, history, transactionInformation, historyEtag);
// Load the new revisions document
var newRevisionDoc = _database.Get(revisionkey, transactionInformation);
var temporal = newRevisionDoc.Metadata.GetTemporalMetadata();
if (temporal.Deleted)
{
// When the revision is a deletion, delete the current document
_database.Delete(currentKey, null, transactionInformation);
}
else
{
// Prepare the current document metadata
newRevisionDoc.Metadata.Remove(TemporalMetadata.RavenDocumentTemporalDeleted);
newRevisionDoc.Metadata.Remove(TemporalMetadata.RavenDocumentTemporalPending);
newRevisionDoc.Metadata.Remove("@id");
temporal.Status = TemporalStatus.Current;
temporal.RevisionNumber = int.Parse(newRevisionDoc.Key.Split('/').Last());
// Copy the revision to the current document
_database.Put(currentKey, null, newRevisionDoc.DataAsJson, newRevisionDoc.Metadata, transactionInformation);
}
// Commit the transaction
_database.Commit(transactionInformation.Id);
}
}
}
public void Execute(DocumentDatabase database)
{
if (!database.IsBundleActive(TemporalConstants.BundleName))
{
return;
}
_database = database;
PendingRevisionsIndex.CreateIndex(database);
var now = SystemTime.UtcNow;
ResetTimer(now, now);
}