| /* |
| * 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; |
| |
| import org.apache.lucene.document.Document; |
| import org.apache.lucene.index.LeafReaderContext; |
| import org.apache.lucene.index.IndexReader; |
| import org.apache.lucene.index.RandomIndexWriter; |
| import org.apache.lucene.store.Directory; |
| import org.apache.lucene.util.LuceneTestCase; |
| |
| public class TestEarlyTermination extends LuceneTestCase { |
| |
| Directory dir; |
| RandomIndexWriter writer; |
| |
| @Override |
| public void setUp() throws Exception { |
| super.setUp(); |
| dir = newDirectory(); |
| writer = new RandomIndexWriter(random(), dir); |
| final int numDocs = atLeast(100); |
| for (int i = 0; i < numDocs; i++) { |
| writer.addDocument(new Document()); |
| if (rarely()) { |
| writer.commit(); |
| } |
| } |
| } |
| |
| @Override |
| public void tearDown() throws Exception { |
| super.tearDown(); |
| writer.close(); |
| dir.close(); |
| } |
| |
| public void testEarlyTermination() throws IOException { |
| final int iters = atLeast(5); |
| final IndexReader reader = writer.getReader(); |
| |
| for (int i = 0; i < iters; ++i) { |
| final IndexSearcher searcher = newSearcher(reader); |
| final Collector collector = new SimpleCollector() { |
| |
| boolean collectionTerminated = true; |
| |
| @Override |
| public void collect(int doc) throws IOException { |
| assertFalse(collectionTerminated); |
| if (rarely()) { |
| collectionTerminated = true; |
| throw new CollectionTerminatedException(); |
| } |
| } |
| |
| @Override |
| protected void doSetNextReader(LeafReaderContext context) throws IOException { |
| if (random().nextBoolean()) { |
| collectionTerminated = true; |
| throw new CollectionTerminatedException(); |
| } else { |
| collectionTerminated = false; |
| } |
| } |
| |
| @Override |
| public ScoreMode scoreMode() { |
| return ScoreMode.COMPLETE_NO_SCORES; |
| } |
| }; |
| |
| searcher.search(new MatchAllDocsQuery(), collector); |
| } |
| reader.close(); |
| } |
| |
| } |