protected virtual void UpdateIndex(BulkLoadContext context, ICollection <ItemChange> itemChanges,
Database database, ISearchIndex index)
{
BaseJob job = null;
var indexSummary = index.RequestSummary();
if (indexSummary == null)
{
context.Log.Warn($"Skipping updating index '{index.Name}' because we could not get its summary.");
return;
}
if (!context.ShouldUpdateIndex(index, indexSummary))
{
context.Log.Warn($"Skipping updating index '{index.Name}' because it's empty.");
return;
}
var touchedPercentage =
(uint)Math.Ceiling((double)itemChanges.Count / Math.Max(1, indexSummary.NumberOfDocuments) * 100);
if (context.IndexRebuildThresholdPercentage.HasValue &&
touchedPercentage > context.IndexRebuildThresholdPercentage.Value)
{
context.Log.Info($"Rebuilding index '{index.Name}' because {touchedPercentage}% is changed.");
job = IndexCustodian.FullRebuild(index);
}
else if (context.Destination != null &&
!itemChanges.Any(ic => ic.Deleted) && // Refresh doesn't do deletes.
context.IndexRefreshThresholdPercentage.HasValue &&
touchedPercentage > context.IndexRefreshThresholdPercentage.Value)
{
context.Log.Info(
$"Refreshing index '{index.Name}' from '{context.Destination.ItemPath}' because {touchedPercentage}% is changed.");
job = IndexCustodian.Refresh(index,
new SitecoreIndexableItem(database.GetItem(new ID(context.Destination.ItemId))));
}
else
{
var sitecoreIds = GetItemsToIndex(itemChanges, database);
context.Log.Info($"Updating index '{index.Name}' with {sitecoreIds.Count} items.");
job = IndexCustodian.IncrementalUpdate(index, sitecoreIds);
}
job.Wait();
}