| /* |
| * 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.search; |
| |
| import java.io.IOException; |
| |
| /** Wraps another Collector and checks that |
| * order is respected. */ |
| class AssertingLeafCollector extends FilterLeafCollector { |
| |
| private final int min; |
| private final int max; |
| |
| private Scorable scorer; |
| private int lastCollected = -1; |
| |
| AssertingLeafCollector(LeafCollector collector, int min, int max) { |
| super(collector); |
| this.min = min; |
| this.max = max; |
| } |
| |
| @Override |
| public void setScorer(Scorable scorer) throws IOException { |
| this.scorer = scorer; |
| super.setScorer(AssertingScorable.wrap(scorer)); |
| } |
| |
| @Override |
| public void collect(int doc) throws IOException { |
| assert doc > lastCollected : "Out of order : " + lastCollected + " " + doc; |
| assert doc >= min : "Out of range: " + doc + " < " + min; |
| assert doc < max : "Out of range: " + doc + " >= " + max; |
| assert scorer.docID() == doc : "Collected: " + doc + " but scorer: " + scorer.docID(); |
| in.collect(doc); |
| lastCollected = doc; |
| } |
| |
| @Override |
| public DocIdSetIterator competitiveIterator() throws IOException { |
| return in.competitiveIterator(); |
| } |
| |
| } |