private bool ShouldAddToResendTable(DocumentsStorage.DocumentOrTombstone item, string currentChangeVector)
{
if (item.Document != null)
{
var status = Database.DocumentsStorage.GetConflictStatus(item.Document.ChangeVector, currentChangeVector);
switch (status)
{
case ConflictStatus.Update:
return(true);
case ConflictStatus.AlreadyMerged:
case ConflictStatus.Conflict:
return(false);
default:
throw new ArgumentOutOfRangeException(nameof(ConflictStatus), status.ToString());
}
}
return(false);
}
private bool ShouldFetchFromResend(string id, DocumentsStorage.DocumentOrTombstone item, string currentChangeVector)
{
if (item.Document == null)
{
// the document was delete while it was processed by the client
ItemsToRemoveFromResend.Add(id);
return(false);
}
var status = Database.DocumentsStorage.GetConflictStatus(item.Document.ChangeVector, currentChangeVector);
switch (status)
{
case ConflictStatus.Update:
// If document was updated, but the subscription went too far.
var resendStatus = Database.DocumentsStorage.GetConflictStatus(item.Document.ChangeVector, SubscriptionConnectionsState.LastChangeVectorSent);
if (resendStatus == ConflictStatus.Update)
{
// we can clear it from resend list, and it will processed as regular document
ItemsToRemoveFromResend.Add(id);
return(false);
}
// We need to resend it
return(resendStatus == ConflictStatus.AlreadyMerged);
case ConflictStatus.AlreadyMerged:
return(true);
case ConflictStatus.Conflict:
return(false);
default:
throw new ArgumentOutOfRangeException(nameof(ConflictStatus), status.ToString());
}
}
private CollectionName GetCollection(DocumentsOperationContext context, DocumentsStorage.DocumentOrTombstone item)
{
return(item.Document != null
? Database.DocumentsStorage.ExtractCollectionName(context, item.Document.Data)
: Database.DocumentsStorage.ExtractCollectionName(context, item.Tombstone.Collection));
}
