protected override void Warm(NuGetIndexSearcher searcher)
{
_logger.LogInformation("NuGetSearcherManager.Warm");
var stopwatch = Stopwatch.StartNew();
// Warmup search (query all documents)
searcher.Search(new MatchAllDocsQuery(), 1);
// Warmup search (query for a specific term with rankings)
var query = NuGetQuery.MakeQuery("newtonsoft.json", searcher.Owners);
var boostedQuery = new DownloadsBoostedQuery(query,
searcher.DocIdMapping,
searcher.Downloads,
searcher.Rankings,
QueryBoostingContext.Default);
searcher.Search(boostedQuery, 5);
// Warmup search (with a sort so Lucene field caches are populated)
var sort1 = new Sort(new SortField("LastEditedDate", SortField.INT, reverse: true));
var sort2 = new Sort(new SortField("PublishedDate", SortField.INT, reverse: true));
var sort3 = new Sort(new SortField("SortableTitle", SortField.STRING, reverse: false));
var sort4 = new Sort(new SortField("SortableTitle", SortField.STRING, reverse: true));
var topDocs1 = searcher.Search(boostedQuery, null, 250, sort1);
var topDocs2 = searcher.Search(boostedQuery, null, 250, sort2);
var topDocs3 = searcher.Search(boostedQuery, null, 250, sort3);
var topDocs4 = searcher.Search(boostedQuery, null, 250, sort4);
// Warmup field caches by fetching data from them
using (var writer = new JsonTextWriter(new StreamWriter(new MemoryStream())))
{
ResponseFormatter.WriteV2Result(writer, searcher, topDocs1, 0, 250, SemVerHelpers.SemVer2Level);
ResponseFormatter.WriteSearchResult(writer, searcher, "http", topDocs1, 0, 250, false, false, SemVerHelpers.SemVer2Level, boostedQuery);
ResponseFormatter.WriteV2Result(writer, searcher, topDocs2, 0, 250, SemVerHelpers.SemVer2Level);
ResponseFormatter.WriteSearchResult(writer, searcher, "http", topDocs2, 0, 250, false, false, SemVerHelpers.SemVer2Level, boostedQuery);
ResponseFormatter.WriteV2Result(writer, searcher, topDocs3, 0, 250, SemVerHelpers.SemVer2Level);
ResponseFormatter.WriteSearchResult(writer, searcher, "http", topDocs3, 0, 250, false, false, SemVerHelpers.SemVer2Level, boostedQuery);
ResponseFormatter.WriteV2Result(writer, searcher, topDocs4, 0, 250, SemVerHelpers.SemVer2Level);
ResponseFormatter.WriteSearchResult(writer, searcher, "http", topDocs4, 0, 250, false, false, SemVerHelpers.SemVer2Level, boostedQuery);
}
// Done, we're warm.
stopwatch.Stop();
_logger.LogInformation("NuGetSearcherManager.Warm: completed in {IndexSearcherWarmDuration} seconds.",
stopwatch.Elapsed.TotalSeconds);
}
private static void ListDocumentsImpl(JsonWriter jsonWriter,
NuGetIndexSearcher searcher,
Query query,
string sortBy,
int skip,
int take,
NuGetVersion semVerLevel)
{
Query boostedQuery = new DownloadsBoostedQuery(query,
searcher.DocIdMapping,
searcher.Downloads,
searcher.Rankings,
searcher.QueryBoostingContext);
int nDocs = skip + take;
Sort sort = GetSort(sortBy);
TopDocs topDocs = (sort == null)
? searcher.Search(boostedQuery, nDocs)
: searcher.Search(boostedQuery, null, nDocs, sort);
ResponseFormatter.WriteV2Result(jsonWriter, searcher, topDocs, skip, take, semVerLevel);
}