public void Execute()
{
ValidateFacets();
var facetsByName = new Dictionary <string, Dictionary <string, FacetValue> >();
bool isDistinct = IndexQuery.IsDistinct;
if (isDistinct)
{
_fieldsCrc = IndexQuery.FieldsToFetch.Aggregate <string, uint>(0, (current, field) => Crc.Value(field, current));
}
_currentState = Database.IndexStorage.GetCurrentStateHolder(Index);
using (_currentState)
{
var currentIndexSearcher = _currentState.IndexSearcher;
var baseQuery = Database.IndexStorage.GetDocumentQuery(Index, IndexQuery, Database.IndexQueryTriggers);
var returnedReaders = GetQueryMatchingDocuments(currentIndexSearcher, baseQuery);
foreach (var facet in Facets.Values)
{
if (facet.Mode != FacetMode.Default)
{
continue;
}
Dictionary <string, HashSet <IndexSearcherHolder.StringCollectionValue> > distinctItems = null;
HashSet <IndexSearcherHolder.StringCollectionValue> alreadySeen = null;
if (isDistinct)
{
distinctItems = new Dictionary <string, HashSet <IndexSearcherHolder.StringCollectionValue> >();
}
foreach (var readerFacetInfo in returnedReaders)
{
var termsForField = IndexedTerms.GetTermsAndDocumentsFor(readerFacetInfo.Reader, readerFacetInfo.DocBase, facet.Name, Database.Name, Index);
Dictionary <string, FacetValue> facetValues;
if (facetsByName.TryGetValue(facet.DisplayName, out facetValues) == false)
{
facetsByName[facet.DisplayName] = facetValues = new Dictionary <string, FacetValue>();
}
foreach (var kvp in termsForField)
{
if (isDistinct)
{
if (distinctItems.TryGetValue(kvp.Key, out alreadySeen) == false)
{
alreadySeen = new HashSet <IndexSearcherHolder.StringCollectionValue>();
distinctItems[kvp.Key] = alreadySeen;
}
}
var needToApplyAggregation = (facet.Aggregation == FacetAggregation.None || facet.Aggregation == FacetAggregation.Count) == false;
var intersectedDocuments = GetIntersectedDocuments(new ArraySegment <int>(kvp.Value), readerFacetInfo.Results, alreadySeen, needToApplyAggregation);
var intersectCount = intersectedDocuments.Count;
if (intersectCount == 0)
{
continue;
}
FacetValue facetValue;
if (facetValues.TryGetValue(kvp.Key, out facetValue) == false)
{
facetValue = new FacetValue
{
Range = GetRangeName(facet.Name, kvp.Key)
};
facetValues.Add(kvp.Key, facetValue);
}
facetValue.Hits += intersectCount;
facetValue.Count = facetValue.Hits;
if (needToApplyAggregation)
{
var docsInQuery = new ArraySegment <int>(intersectedDocuments.Documents, 0, intersectedDocuments.Count);
ApplyAggregation(facet, facetValue, docsInQuery, readerFacetInfo.Reader, readerFacetInfo.DocBase);
}
}
}
}
foreach (var range in Ranges)
{
var facet = Facets[range.Key];
var needToApplyAggregation = (facet.Aggregation == FacetAggregation.None || facet.Aggregation == FacetAggregation.Count) == false;
Dictionary <string, HashSet <IndexSearcherHolder.StringCollectionValue> > distinctItems = null;
HashSet <IndexSearcherHolder.StringCollectionValue> alreadySeen = null;
if (isDistinct)
{
distinctItems = new Dictionary <string, HashSet <IndexSearcherHolder.StringCollectionValue> >();
}
foreach (var readerFacetInfo in returnedReaders)
{
var termsForField = IndexedTerms.GetTermsAndDocumentsFor(readerFacetInfo.Reader, readerFacetInfo.DocBase, facet.Name, Database.Name, Index);
if (isDistinct)
{
if (distinctItems.TryGetValue(range.Key, out alreadySeen) == false)
{
alreadySeen = new HashSet <IndexSearcherHolder.StringCollectionValue>();
distinctItems[range.Key] = alreadySeen;
}
}
var facetResult = Results.Results[range.Key];
var ranges = range.Value;
foreach (var kvp in termsForField)
{
for (int i = 0; i < ranges.Count; i++)
{
var parsedRange = ranges[i];
if (parsedRange.IsMatch(kvp.Key))
{
var facetValue = facetResult.Values[i];
var intersectedDocuments = GetIntersectedDocuments(new ArraySegment <int>(kvp.Value), readerFacetInfo.Results, alreadySeen, needToApplyAggregation);
var intersectCount = intersectedDocuments.Count;
if (intersectCount == 0)
{
continue;
}
facetValue.Hits += intersectCount;
facetValue.Count = facetValue.Hits;
if (needToApplyAggregation)
{
var docsInQuery = new ArraySegment <int>(intersectedDocuments.Documents, 0, intersectedDocuments.Count);
ApplyAggregation(facet, facetValue, docsInQuery, readerFacetInfo.Reader, readerFacetInfo.DocBase);
IntArraysPool.Instance.FreeArray(intersectedDocuments.Documents);
intersectedDocuments.Documents = null;
}
}
}
}
}
}
UpdateFacetResults(facetsByName);
CompleteFacetCalculationsStage();
foreach (var readerFacetInfo in returnedReaders)
{
IntArraysPool.Instance.FreeArray(readerFacetInfo.Results.Array);
}
}
}
