public ManualResetEvent SetIndexSearcher(IndexSearcher searcher, bool wait)
{
var old = current;
current = new IndexSearcherHoldingState(searcher);
if (old == null)
{
return(null);
}
// here we try to make sure that the actual facet cache is up to do when we update the index searcher.
// we use this to ensure that any facets that has been recently queried is warmed up and in the cache
if (searcher != null &&
context.Configuration.PrewarmFacetsOnIndexingMaxAge != TimeSpan.Zero)
{
var usedFacets = old.GetUsedFacets(context.Configuration.PrewarmFacetsOnIndexingMaxAge).ToArray();
if (usedFacets.Length > 0)
{
var preFillCache = Task.Factory.StartNew(() =>
{
var sp = Stopwatch.StartNew();
try
{
IndexedTerms.PreFillCache(current, usedFacets, searcher.IndexReader);
}
catch (Exception e)
{
Log.WarnException(
string.Format("Failed to properly pre-warm the facets cache ({1}) for index {0}", indexId,
string.Join(",", usedFacets)), e);
}
finally
{
Log.Debug("Pre-warming the facet cache for {0} took {2}. Facets: {1}", indexId, string.Join(",", usedFacets), sp.Elapsed);
}
});
preFillCache.Wait(context.Configuration.PrewarmFacetsSyncronousWaitTime);
}
}
Interlocked.Increment(ref old.Usage);
using (old)
{
if (wait)
{
return(old.MarkForDisposalWithWait());
}
old.MarkForDisposal();
return(null);
}
}
public RavenJObject[] GetOrCreateTerms()
{
if (readEntriesFromIndex != null)
{
return(readEntriesFromIndex);
}
var indexReader = IndexSearcher.IndexReader;
readEntriesFromIndex = IndexedTerms.ReadAllEntriesFromIndex(indexReader);
return(readEntriesFromIndex);
}