| /* |
| * 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.solr.search.facet; |
| |
| import java.io.IOException; |
| import java.util.function.IntFunction; |
| |
| import org.apache.lucene.util.BytesRef; |
| import org.apache.lucene.util.FixedBitSet; |
| import org.apache.solr.schema.SchemaField; |
| import org.apache.solr.search.SolrIndexSearcher; |
| |
| class UniqueMultivaluedSlotAcc extends UniqueSlotAcc implements UnInvertedField.Callback { |
| private UnInvertedField uif; |
| private UnInvertedField.DocToTerm docToTerm; |
| |
| public UniqueMultivaluedSlotAcc(FacetContext fcontext, SchemaField field, int numSlots, HLLAgg.HLLFactory factory) throws IOException { |
| super(fcontext, field, numSlots, factory); |
| SolrIndexSearcher searcher = fcontext.qcontext.searcher(); |
| uif = UnInvertedField.getUnInvertedField(field.getName(), searcher); |
| docToTerm = uif.new DocToTerm(); |
| fcontext.qcontext.addCloseHook(this); // TODO: find way to close accumulators instead of using close hook? |
| nTerms = uif.numTerms(); |
| } |
| |
| @Override |
| protected BytesRef lookupOrd(int ord) throws IOException { |
| return docToTerm.lookupOrd(ord); |
| } |
| |
| private FixedBitSet bits; // bits for the current slot, only set for the callback |
| |
| @Override |
| public void call(int termNum) { |
| bits.set(termNum); |
| } |
| |
| @Override |
| public void collect(int doc, int slotNum, IntFunction<SlotContext> slotContext) throws IOException { |
| bits = arr[slotNum]; |
| if (bits == null) { |
| bits = new FixedBitSet(nTerms); |
| arr[slotNum] = bits; |
| } |
| docToTerm.getBigTerms(doc + currentDocBase, this); // this will call back to our Callback.call(int termNum) |
| docToTerm.getSmallTerms(doc + currentDocBase, this); |
| } |
| |
| @Override |
| public void close() throws IOException { |
| if (docToTerm != null) { |
| docToTerm.close(); |
| docToTerm = null; |
| } |
| } |
| } |