public static void Search(JsonWriter jsonWriter,
NuGetSearcherManager searcherManager,
string scheme,
string q,
bool includePrerelease,
NuGetVersion semVerLevel,
int skip,
int take,
string feed,
bool includeExplanation)
{
var searcher = searcherManager.Get();
try
{
Query query = MakeSearchQuery(q, searcher);
Filter filter = null;
if (searcher.TryGetFilter(false, includePrerelease, semVerLevel, feed, out filter))
{
// Filter before running the query (make the search set smaller)
query = new FilteredQuery(query, filter);
}
TopDocs topDocs = searcher.Search(query, skip + take);
ResponseFormatter.WriteSearchResult(jsonWriter, searcher, scheme, topDocs, skip, take, includePrerelease, includeExplanation, semVerLevel, query);
}
finally
{
searcherManager.Release(searcher);
}
}
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);
}
