private IEnumerable <FacetMatch> FindMatchesInQuery(Query baseQueryWithoutFacetDrilldown, IList <FacetFieldInfo> allFacetFieldInfos, FacetFieldInfo facetFieldInfoToCalculateFor)
{
var calculations = 0;
var queryFilter = new CachingWrapperFilter(new QueryWrapperFilter(CreateFacetedQuery(baseQueryWithoutFacetDrilldown, allFacetFieldInfos, facetFieldInfoToCalculateFor.FieldName)));
var bitsQueryWithoutFacetDrilldown = new OpenBitSetDISI(queryFilter.GetDocIdSet(IndexReader).Iterator(), IndexReader.MaxDoc);
var baseQueryWithoutFacetDrilldownCopy = new OpenBitSetDISI(bitsQueryWithoutFacetDrilldown.Bits.Length)
{
Bits = new long[bitsQueryWithoutFacetDrilldown.Bits.Length]
};
var calculatedFacetCounts = new ResultCollection(facetFieldInfoToCalculateFor);
foreach (var facetValueBitSet in GetOrCreateFacetBitSet(facetFieldInfoToCalculateFor.FieldName).FacetValueBitSetList)
{
var isSelected = calculatedFacetCounts.IsSelected(facetValueBitSet.Value);
if (!isSelected && facetValueBitSet.Count < calculatedFacetCounts.MinCountForNonSelected) //Impossible to get a better result
{
if (calculatedFacetCounts.HaveEnoughResults)
{
break;
}
}
bitsQueryWithoutFacetDrilldown.Bits.CopyTo(baseQueryWithoutFacetDrilldownCopy.Bits, 0);
baseQueryWithoutFacetDrilldownCopy.NumWords = bitsQueryWithoutFacetDrilldown.NumWords;
var bitset = facetValueBitSet.Bitset ?? CalculateOpenBitSetDisi(facetFieldInfoToCalculateFor.FieldName, facetValueBitSet.Value);
baseQueryWithoutFacetDrilldownCopy.And(bitset);
var count = baseQueryWithoutFacetDrilldownCopy.Cardinality();
if (count == 0)
{
continue;
}
var match = new FacetMatch
{
Count = count,
Value = facetValueBitSet.Value,
FacetFieldName = facetFieldInfoToCalculateFor.FieldName
};
calculations++;
if (isSelected)
{
calculatedFacetCounts.AddToSelected(match);
}
else
{
calculatedFacetCounts.AddToNonSelected(match);
}
}
return(calculatedFacetCounts.GetList());
}
/// <summary>
/// Creates facets.
/// </summary>
/// <param name="reader">The reader.</param>
/// <param name="query">The query.</param>
private void CreateFacets(IndexReader reader, Query query)
{
var groups = new List <FacetGroup>();
var baseQueryFilter = new CachingWrapperFilter(new QueryWrapperFilter(query));
var baseDocIdSet = baseQueryFilter.GetDocIdSet(reader);
#region Subcategory filters
/*
* var catalogCriteria = Results.SearchCriteria as CatalogItemSearchCriteria;
* if (catalogCriteria != null && catalogCriteria.ChildCategoryFilters.Any())
* {
* var group = new FacetGroup("Subcategory");
* var groupCount = 0;
*
* foreach (var value in catalogCriteria.ChildCategoryFilters)
* {
* var q = LuceneQueryHelper.CreateQuery(catalogCriteria.OutlineField, value);
*
* if (q == null) continue;
*
* var queryFilter = new CachingWrapperFilter(new QueryWrapperFilter(q));
* var filterArray = queryFilter.GetDocIdSet(reader);
* var newCount = (int)CalculateFacetCount(baseDocIdSet, filterArray);
* if (newCount == 0) continue;
*
* var newFacet = new Facet(group, value.Code, value.Name, newCount);
* group.Facets.Add(newFacet);
* groupCount += newCount;
* }
*
* // Add only if items exist under
* if (groupCount > 0)
* {
* groups.Add(group);
* }
* }
* */
#endregion
if (Results.SearchCriteria.Filters != null && Results.SearchCriteria.Filters.Length > 0)
{
foreach (var filter in Results.SearchCriteria.Filters)
{
if (!string.IsNullOrEmpty(Results.SearchCriteria.Currency) && filter is PriceRangeFilter)
{
var valCurrency = ((PriceRangeFilter)filter).Currency;
if (!valCurrency.Equals(Results.SearchCriteria.Currency, StringComparison.OrdinalIgnoreCase))
{
continue;
}
}
var facetGroup = CalculateResultCount(reader, baseDocIdSet, filter, Results.SearchCriteria);
if (facetGroup != null)
{
groups.Add(facetGroup);
}
}
}
Results.FacetGroups = groups.ToArray();
}
/// <summary>
/// Creates facets.
/// </summary>
/// <param name="reader">The reader.</param>
/// <param name="query">The query.</param>
private void CreateFacets(IndexReader reader, Query query)
{
var groups = new List<FacetGroup>();
var baseQueryFilter = new CachingWrapperFilter(new QueryWrapperFilter(query));
var baseDocIdSet = baseQueryFilter.GetDocIdSet(reader);
#region Subcategory filters
/*
var catalogCriteria = Results.SearchCriteria as CatalogItemSearchCriteria;
if (catalogCriteria != null && catalogCriteria.ChildCategoryFilters.Any())
{
var group = new FacetGroup("Subcategory");
var groupCount = 0;
foreach (var value in catalogCriteria.ChildCategoryFilters)
{
var q = LuceneQueryHelper.CreateQuery(catalogCriteria.OutlineField, value);
if (q == null) continue;
var queryFilter = new CachingWrapperFilter(new QueryWrapperFilter(q));
var filterArray = queryFilter.GetDocIdSet(reader);
var newCount = (int)CalculateFacetCount(baseDocIdSet, filterArray);
if (newCount == 0) continue;
var newFacet = new Facet(group, value.Code, value.Name, newCount);
group.Facets.Add(newFacet);
groupCount += newCount;
}
// Add only if items exist under
if (groupCount > 0)
{
groups.Add(group);
}
}
* */
#endregion
if (Results.SearchCriteria.Filters != null && Results.SearchCriteria.Filters.Length > 0)
{
foreach (var filter in Results.SearchCriteria.Filters)
{
var group = new FacetGroup(filter.Key);
var groupCount = 0;
if (!String.IsNullOrEmpty(Results.SearchCriteria.Currency) && filter is s.PriceRangeFilter)
{
var valCurrency = ((s.PriceRangeFilter) filter).Currency;
if (
!valCurrency.Equals(
Results.SearchCriteria.Currency, StringComparison.OrdinalIgnoreCase))
{
continue;
}
}
groupCount += CalculateResultCount(reader, baseDocIdSet, group, filter,
Results.SearchCriteria);
// Add only if items exist under
if (groupCount > 0)
{
groups.Add(group);
}
}
}
Results.FacetGroups = groups.ToArray();
}
/// <summary>
/// Creates facets.
/// </summary>
/// <param name="reader">The reader.</param>
/// <param name="query">The query.</param>
private void CreateFacets(IndexReader reader, Query query)
{
var groups = new List<FacetGroup>();
if (this.Results.SearchCriteria.Filters != null && this.Results.SearchCriteria.Filters.Length > 0)
{
var baseQueryFilter = new CachingWrapperFilter(new QueryWrapperFilter(query));
var baseBitArray = baseQueryFilter.GetDocIdSet(reader);
foreach (var filter in this.Results.SearchCriteria.Filters)
{
var group = new FacetGroup(filter.Key);
var groupCount = 0;
if (!String.IsNullOrEmpty(this.Results.SearchCriteria.Currency) && filter is s.PriceRangeFilter)
{
var valCurrency = ((s.PriceRangeFilter)filter).Currency;
if (
!valCurrency.Equals(
this.Results.SearchCriteria.Currency, StringComparison.OrdinalIgnoreCase))
{
continue;
}
}
groupCount += this.CalculateResultCount(
reader, baseBitArray, group, filter, this.Results.SearchCriteria.Currency);
// Add only if items exist under
if (groupCount > 0)
{
groups.Add(group);
}
}
}
this.Results.FacetGroups = groups.ToArray();
}
/// <summary>
/// Calculates the result count.
/// </summary>
/// <param name="reader">The reader.</param>
/// <param name="baseDocIdSet">The base doc id set.</param>
/// <param name="facetGroup">The facet group.</param>
/// <param name="filter">The filter.</param>
/// <param name="currency">The currency.</param>
/// <returns></returns>
private int CalculateResultCount(
IndexReader reader, DocIdSet baseDocIdSet, FacetGroup facetGroup, ISearchFilter filter, string currency)
{
var count = 0;
ISearchFilterValue[] values = null;
var priceQuery = false;
if (filter is s.AttributeFilter)
{
values = ((s.AttributeFilter)filter).Values;
}
else if (filter is s.RangeFilter)
{
values = ((s.RangeFilter)filter).Values;
}
else if (filter is s.PriceRangeFilter)
{
values = ((s.PriceRangeFilter)filter).Values;
priceQuery = true;
}
if (values == null)
{
return 0;
}
foreach (var value in values)
{
Query q = null;
if (priceQuery)
{
q = LuceneQueryHelper.CreateQuery(
this.Results.SearchCriteria, filter.Key, value as s.RangeFilterValue);
}
else
{
q = LuceneQueryHelper.CreateQuery(filter.Key, value);
}
if (q == null) continue;
var queryFilter = new CachingWrapperFilter(new QueryWrapperFilter(q));
var filterArray = queryFilter.GetDocIdSet(reader);
var newCount = (int)this.CalculateFacetCount(baseDocIdSet, filterArray);
if (newCount == 0) continue;
var newFacet = new Facet(facetGroup, value.Id, this.GetDescription(value, this.Results.SearchCriteria.Locale), newCount);
facetGroup.Facets.Add(newFacet);
count += newCount;
}
return count;
}
public IEnumerable <IHit> Query(int pageIndex, int pageSize, out int totalCount, out IEnumerable <FacetGroup> facetedResults)
{
totalCount = 0;
facetedResults = null;
if (searchPaths == null || searchPaths.Count <= 0)
{
searchPaths.AddRange(indexPaths.Values.Select(o => o.Path));
}
List <LuceneHit> results = new List <LuceneHit>();
List <IndexSearcher> subSearchs = new List <IndexSearcher>();
searchPaths.ForEach(o => subSearchs.Add(new IndexSearcher(FSDirectory.Open(o))));
if (facetFields != null && facetFields.Count > 0)
{
var facetGroups = new List <FacetGroup>();
var mainQueryFilter = new CachingWrapperFilter(new QueryWrapperFilter(query));
MultiReader readers = new MultiReader(subSearchs.Select(o => o.IndexReader).ToArray());
foreach (var facetField in facetFields)
{
FacetGroup fg = new FacetGroup();
fg.FieldName = facetFieldNameProvider.GetMapName(TypeName, facetField);
var items = new List <FacetItem>();
var allDistinctField = FieldCache_Fields.DEFAULT.GetStrings(readers, facetField).Distinct().ToArray();
int totalHits = 0;
Parallel.ForEach(allDistinctField, fieldValue =>
{
//foreach (var fieldValue in allDistinctField)
//{
var facetQuery = new TermQuery(new Term(facetField, fieldValue));
var facetQueryFilter = new CachingWrapperFilter(new QueryWrapperFilter(facetQuery));
var bs = new OpenBitSetDISI(facetQueryFilter.GetDocIdSet(readers).Iterator(), readers.MaxDoc);
bs.InPlaceAnd(mainQueryFilter.GetDocIdSet(readers).Iterator());
int count = (Int32)bs.Cardinality();
FacetItem item = new FacetItem();
item.GroupValue = fieldValue;
item.Count = count;
items.Add(item);
totalHits += count;
}
);
fg.FacetItems = items.OrderByDescending(o => o.Count);
fg.TotalHits = totalHits;
facetGroups.Add(fg);
}
facetedResults = facetGroups.OrderBy(o => o.FieldName);
}
ParallelMultiSearcher searcher = new ParallelMultiSearcher(subSearchs.ToArray());
Sort sort = null;
if (sortFields != null && sortFields.Count > 0)
{
sort = new Sort(sortFields.ToArray());
}
int maxDoc = searcher.MaxDoc;
int startIndex = 0;
if (pageIndex >= 0 && pageSize > 0)
{
startIndex = pageIndex * pageSize;
maxDoc = pageSize * (pageIndex + 1);
}
var docs = sort == null?searcher.Search(query, null, maxDoc) : searcher.Search(query, null, maxDoc, sort);
totalCount = docs.TotalHits;
int endIndex = docs.TotalHits - startIndex;
for (int i = startIndex; i < endIndex; i++)
{
LuceneHit h = new LuceneHit(TypeName, DocumentBuilder, searcher.Doc(docs.ScoreDocs[i].Doc));
results.Add(h);
}
return(results);
}