| // Lucene version compatibility level 4.8.1 |
| using System.Collections.Generic; |
| |
| namespace Lucene.Net.Facet.Taxonomy |
| { |
| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| using BinaryDocValues = Lucene.Net.Index.BinaryDocValues; |
| using DocIdSetIterator = Lucene.Net.Search.DocIdSetIterator; |
| using Int32sRef = Lucene.Net.Util.Int32sRef; |
| using MatchingDocs = FacetsCollector.MatchingDocs; |
| |
| /// <summary> |
| /// Reads from any <see cref="OrdinalsReader"/>; use <see cref="FastTaxonomyFacetCounts"/> |
| /// if you are using the default encoding from <see cref="BinaryDocValues"/>. |
| /// |
| /// @lucene.experimental |
| /// </summary> |
| public class TaxonomyFacetCounts : Int32TaxonomyFacets |
| { |
| private readonly OrdinalsReader ordinalsReader; |
| |
| /// <summary> |
| /// Create <see cref="TaxonomyFacetCounts"/>, which also |
| /// counts all facet labels. Use this for a non-default |
| /// <see cref="OrdinalsReader"/>; otherwise use <see cref="FastTaxonomyFacetCounts"/>. |
| /// </summary> |
| public TaxonomyFacetCounts(OrdinalsReader ordinalsReader, TaxonomyReader taxoReader, FacetsConfig config, FacetsCollector fc) |
| : base(ordinalsReader.IndexFieldName, taxoReader, config) |
| { |
| this.ordinalsReader = ordinalsReader; |
| Count(fc.GetMatchingDocs()); |
| } |
| |
| private void Count(IList<FacetsCollector.MatchingDocs> matchingDocs) |
| { |
| Int32sRef scratch = new Int32sRef(); |
| foreach (FacetsCollector.MatchingDocs hits in matchingDocs) |
| { |
| OrdinalsReader.OrdinalsSegmentReader ords = ordinalsReader.GetReader(hits.Context); |
| DocIdSetIterator docs = hits.Bits.GetIterator(); |
| |
| int doc; |
| while ((doc = docs.NextDoc()) != DocIdSetIterator.NO_MORE_DOCS) |
| { |
| ords.Get(doc, scratch); |
| for (int i = 0; i < scratch.Length; i++) |
| { |
| m_values[scratch.Int32s[scratch.Offset + i]]++; |
| } |
| } |
| } |
| |
| Rollup(); |
| } |
| } |
| } |