public override void AddExplanation(ExplanationResult explanation)
{
if (Explanations == null)
{
Explanations = new Dictionary <string, string[]>();
}
if (Explanations.TryGetValue(explanation.Key, out var result) == false)
{
Explanations[explanation.Key] = new[] { CreateExplanation(explanation.Explanation) }
}
;
else
{
Array.Resize(ref result, result.Length + 1);
result[result.Length - 1] = CreateExplanation(explanation.Explanation);
}
}
public override void AddExplanation(ExplanationResult explanationResult)
{
throw new NotSupportedException();
}
public abstract void AddExplanation(ExplanationResult explanationResult);
public IEnumerable <(Document Result, Dictionary <string, Dictionary <string, string[]> > Highlightings, ExplanationResult Explanation)> Query(IndexQueryServerSide query, QueryTimingsScope queryTimings, FieldsToFetch fieldsToFetch, Reference <int> totalResults, Reference <int> skippedResults, IQueryResultRetriever retriever, DocumentsOperationContext documentsContext, Func <string, SpatialField> getSpatialField, CancellationToken token)
{
ExplanationOptions explanationOptions = null;
var pageSize = query.PageSize;
var isDistinctCount = pageSize == 0 && query.Metadata.IsDistinct;
if (isDistinctCount)
{
pageSize = int.MaxValue;
}
pageSize = GetPageSize(_searcher, pageSize);
var docsToGet = pageSize;
var position = query.Start;
if (query.Metadata.IsOptimizedSortOnly && _index.Definition.HasDynamicFields == false)
{
foreach (var result in QuerySortOnly(query, retriever, position, pageSize, totalResults, token))
{
yield return(result);
}
yield break;
}
QueryTimingsScope luceneScope = null;
QueryTimingsScope highlightingScope = null;
QueryTimingsScope explanationsScope = null;
if (queryTimings != null)
{
luceneScope = queryTimings.For(nameof(QueryTimingsScope.Names.Lucene), start: false);
highlightingScope = query.Metadata.HasHighlightings
? queryTimings.For(nameof(QueryTimingsScope.Names.Highlightings), start: false)
: null;
explanationsScope = query.Metadata.HasExplanations
? queryTimings.For(nameof(QueryTimingsScope.Names.Explanations), start: false)
: null;
}
var returnedResults = 0;
var luceneQuery = GetLuceneQuery(documentsContext, query.Metadata, query.QueryParameters, _analyzer, _queryBuilderFactories);
var sort = GetSort(query, _index, getSpatialField, documentsContext);
using (var scope = new IndexQueryingScope(_indexType, query, fieldsToFetch, _searcher, retriever, _state))
{
if (query.Metadata.HasHighlightings)
{
using (highlightingScope?.For(nameof(QueryTimingsScope.Names.Setup)))
SetupHighlighter(query, luceneQuery, documentsContext);
}
while (true)
{
token.ThrowIfCancellationRequested();
TopDocs search;
using (luceneScope?.Start())
search = ExecuteQuery(luceneQuery, query.Start, docsToGet, sort);
totalResults.Value = search.TotalHits;
scope.RecordAlreadyPagedItemsInPreviousPage(search);
for (; position < search.ScoreDocs.Length && pageSize > 0; position++)
{
token.ThrowIfCancellationRequested();
var scoreDoc = search.ScoreDocs[position];
global::Lucene.Net.Documents.Document document;
using (luceneScope?.Start())
document = _searcher.Doc(scoreDoc.Doc, _state);
if (retriever.TryGetKey(document, _state, out string key) && scope.WillProbablyIncludeInResults(key) == false)
{
skippedResults.Value++;
continue;
}
var result = retriever.Get(document, scoreDoc.Score, _state);
if (scope.TryIncludeInResults(result) == false)
{
skippedResults.Value++;
continue;
}
returnedResults++;
if (isDistinctCount == false)
{
Dictionary <string, Dictionary <string, string[]> > highlightings = null;
if (query.Metadata.HasHighlightings)
{
using (highlightingScope?.Start())
highlightings = GetHighlighterResults(query, _searcher, scoreDoc, result, document, documentsContext);
}
ExplanationResult explanation = null;
if (query.Metadata.HasExplanations)
{
using (explanationsScope?.Start())
{
if (explanationOptions == null)
{
explanationOptions = query.Metadata.Explanation.GetOptions(documentsContext, query.QueryParameters);
}
explanation = GetQueryExplanations(explanationOptions, luceneQuery, _searcher, scoreDoc, result, document);
}
}
yield return(result, highlightings, explanation);
}
if (returnedResults == pageSize)
{
yield break;
}
}
if (search.TotalHits == search.ScoreDocs.Length)
{
break;
}
if (returnedResults >= pageSize)
{
break;
}
Debug.Assert(_maxNumberOfOutputsPerDocument > 0);
docsToGet += GetPageSize(_searcher, (long)(pageSize - returnedResults) * _maxNumberOfOutputsPerDocument);
}
if (isDistinctCount)
{
totalResults.Value = returnedResults;
}
}
}
