private MultiFacetRequest BuildRequest(int maxResults)
{
var request = new MultiFacetRequest
{
Query = Query,
Sort = SortFields.ToList(),
MaxResults = maxResults,
Config = FacetSearcherConfiguration.Default(),
Facets = new List <FacetFieldInfo>()
};
foreach (var field in Fields)
{
if (field.MinHits > 0)
{
request.Config.MinimumCountInTotalDatasetForFacet = field.MinHits;
}
var fieldInfo = new FacetFieldInfo
{
FieldName = field.Name,
MaxToFetchExcludingSelections = field.MaxCount
};
if (field.Values != null)
{
fieldInfo.Selections = field.Values.ToList();
}
request.Facets.Add(fieldInfo);
}
return(request);
}
public void PerformSearch(MultiFacetRequest request)
{
using (var multiSearcher = new FacetSearcher(Searcher.IndexReader, request.Config))
{
if (request.Sort.Any() == true)
{
var collector = TopFieldCollector.Create(
new Sort(request.Sort.ToArray()), request.MaxResults, false, false, false, false);
multiSearcher.Search(request.Query, collector);
_scoreDocs = collector.TopDocs().ScoreDocs;
}
else
{
var collector = TopScoreDocCollector.Create(request.MaxResults, true);
multiSearcher.Search(request.Query, collector);
_scoreDocs = collector.TopDocs().ScoreDocs;
}
var results = multiSearcher.SearchWithFacets(request.Query, request.MaxResults, request.Facets);
foreach (var facet in results.Facets.GroupBy(x => x.FacetFieldName))
{
Facets.Add(facet.Key, CreateFacetResult(facet.ToList()));
}
TotalItemCount = results.Hits.TotalHits;
}
}
public MultiFacetQuery(ISearchContext searchContext, string category, Analyzer analyzer, string[] fields, LuceneSearchOptions searchOptions, BooleanOperation occurance)
: base(searchContext, category, analyzer, fields, searchOptions, occurance)
{
_searchContext = searchContext;
_request = new MultiFacetRequest
{
Query = Query,
Sort = SortFields,
Config = FacetSearcherConfiguration.Default(),
Facets = new List <FacetFieldInfo>()
};
}
public MultiFacetSearchResults(ISearchContext searchContext, MultiFacetRequest request)
: base(searchContext)
{
PerformSearch(request);
}
