| /* |
| * 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; |
| |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.apache.lucene.search.Scorable; |
| import org.apache.lucene.search.ScoreMode; |
| import org.apache.lucene.search.SimpleCollector; |
| |
| /** Verifies in collect() that all child subScorers are on |
| * the collected doc. */ |
| class AssertingSubDocsAtOnceCollector extends SimpleCollector { |
| |
| // TODO: allow wrapping another Collector |
| |
| List<Scorable> allScorers; |
| |
| @Override |
| public void setScorer(Scorable s) throws IOException { |
| // Gathers all scorers, including s and "under": |
| allScorers = new ArrayList<>(); |
| allScorers.add(s); |
| int upto = 0; |
| while(upto < allScorers.size()) { |
| s = allScorers.get(upto++); |
| for (Scorable.ChildScorable sub : s.getChildren()) { |
| allScorers.add(sub.child); |
| } |
| } |
| } |
| |
| @Override |
| public void collect(int docID) { |
| for(Scorable s : allScorers) { |
| if (docID != s.docID()) { |
| throw new IllegalStateException("subScorer=" + s + " has docID=" + s.docID() + " != collected docID=" + docID); |
| } |
| } |
| } |
| |
| @Override |
| public ScoreMode scoreMode() { |
| return ScoreMode.COMPLETE_NO_SCORES; |
| } |
| } |