| /* |
| * 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. |
| */ |
| package org.apache.lucene.facet.taxonomy; |
| |
| import java.io.IOException; |
| import java.util.List; |
| |
| import org.apache.lucene.facet.FacetsCollector.MatchingDocs; |
| import org.apache.lucene.facet.FacetsCollector; |
| import org.apache.lucene.facet.FacetsConfig; |
| import org.apache.lucene.index.BinaryDocValues; |
| import org.apache.lucene.search.DocIdSetIterator; |
| import org.apache.lucene.util.BytesRef; |
| |
| /** Aggregates sum of int values previously indexed with |
| * {@link IntAssociationFacetField}, assuming the default |
| * encoding. |
| * |
| * @lucene.experimental */ |
| public class TaxonomyFacetSumIntAssociations extends IntTaxonomyFacets { |
| |
| /** Create {@code TaxonomyFacetSumIntAssociations} against |
| * the default index field. */ |
| public TaxonomyFacetSumIntAssociations(TaxonomyReader taxoReader, FacetsConfig config, FacetsCollector fc) throws IOException { |
| this(FacetsConfig.DEFAULT_INDEX_FIELD_NAME, taxoReader, config, fc); |
| } |
| |
| /** Create {@code TaxonomyFacetSumIntAssociations} against |
| * the specified index field. */ |
| public TaxonomyFacetSumIntAssociations(String indexFieldName, TaxonomyReader taxoReader, FacetsConfig config, FacetsCollector fc) throws IOException { |
| super(indexFieldName, taxoReader, config, fc); |
| sumValues(fc.getMatchingDocs()); |
| } |
| |
| private final void sumValues(List<MatchingDocs> matchingDocs) throws IOException { |
| //System.out.println("count matchingDocs=" + matchingDocs + " facetsField=" + facetsFieldName); |
| for(MatchingDocs hits : matchingDocs) { |
| BinaryDocValues dv = hits.context.reader().getBinaryDocValues(indexFieldName); |
| if (dv == null) { // this reader does not have DocValues for the requested category list |
| continue; |
| } |
| |
| DocIdSetIterator docs = hits.bits.iterator(); |
| |
| int doc; |
| while ((doc = docs.nextDoc()) != DocIdSetIterator.NO_MORE_DOCS) { |
| //System.out.println(" doc=" + doc); |
| // TODO: use OrdinalsReader? we'd need to add a |
| // BytesRef getAssociation()? |
| if (dv.docID() < doc) { |
| dv.advance(doc); |
| } |
| if (dv.docID() == doc) { |
| final BytesRef bytesRef = dv.binaryValue(); |
| byte[] bytes = bytesRef.bytes; |
| int end = bytesRef.offset + bytesRef.length; |
| int offset = bytesRef.offset; |
| while (offset < end) { |
| int ord = ((bytes[offset]&0xFF) << 24) | |
| ((bytes[offset+1]&0xFF) << 16) | |
| ((bytes[offset+2]&0xFF) << 8) | |
| (bytes[offset+3]&0xFF); |
| offset += 4; |
| int value = ((bytes[offset]&0xFF) << 24) | |
| ((bytes[offset+1]&0xFF) << 16) | |
| ((bytes[offset+2]&0xFF) << 8) | |
| (bytes[offset+3]&0xFF); |
| offset += 4; |
| increment(ord, value); |
| } |
| } |
| } |
| } |
| } |
| } |