| /* |
| * 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.join; |
| |
| import java.io.IOException; |
| |
| import org.apache.lucene.document.Document; |
| import org.apache.lucene.index.DirectoryReader; |
| import org.apache.lucene.index.FilterDirectoryReader; |
| import org.apache.lucene.index.FilterLeafReader; |
| import org.apache.lucene.index.IndexWriterConfig; |
| import org.apache.lucene.index.LeafReader; |
| import org.apache.lucene.index.NoMergePolicy; |
| import org.apache.lucene.index.RandomIndexWriter; |
| import org.apache.lucene.search.MatchAllDocsQuery; |
| import org.apache.lucene.search.MatchNoDocsQuery; |
| import org.apache.lucene.store.Directory; |
| import org.apache.lucene.util.BitSet; |
| import org.apache.lucene.util.IOUtils; |
| import org.apache.lucene.util.LuceneTestCase; |
| |
| public class TestQueryBitSetProducer extends LuceneTestCase { |
| |
| public void testSimple() throws Exception { |
| Directory dir = newDirectory(); |
| IndexWriterConfig iwc = newIndexWriterConfig().setMergePolicy(NoMergePolicy.INSTANCE); |
| RandomIndexWriter w = new RandomIndexWriter(random(), dir, iwc); |
| w.addDocument(new Document()); |
| DirectoryReader reader = w.getReader(); |
| |
| QueryBitSetProducer producer = new QueryBitSetProducer(new MatchNoDocsQuery()); |
| assertNull(producer.getBitSet(reader.leaves().get(0))); |
| assertEquals(1, producer.cache.size()); |
| |
| producer = new QueryBitSetProducer(new MatchAllDocsQuery()); |
| BitSet bitSet = producer.getBitSet(reader.leaves().get(0)); |
| assertEquals(1, bitSet.length()); |
| assertEquals(true, bitSet.get(0)); |
| assertEquals(1, producer.cache.size()); |
| |
| IOUtils.close(reader, w, dir); |
| } |
| |
| public void testReaderNotSuitedForCaching() throws IOException{ |
| Directory dir = newDirectory(); |
| IndexWriterConfig iwc = newIndexWriterConfig().setMergePolicy(NoMergePolicy.INSTANCE); |
| RandomIndexWriter w = new RandomIndexWriter(random(), dir, iwc); |
| w.addDocument(new Document()); |
| DirectoryReader reader = new DummyDirectoryReader(w.getReader()); |
| |
| QueryBitSetProducer producer = new QueryBitSetProducer(new MatchNoDocsQuery()); |
| assertNull(producer.getBitSet(reader.leaves().get(0))); |
| assertEquals(0, producer.cache.size()); |
| |
| producer = new QueryBitSetProducer(new MatchAllDocsQuery()); |
| BitSet bitSet = producer.getBitSet(reader.leaves().get(0)); |
| assertEquals(1, bitSet.length()); |
| assertEquals(true, bitSet.get(0)); |
| assertEquals(0, producer.cache.size()); |
| |
| IOUtils.close(reader, w, dir); |
| } |
| |
| // a reader whose sole purpose is to not be cacheable |
| private static class DummyDirectoryReader extends FilterDirectoryReader { |
| |
| public DummyDirectoryReader(DirectoryReader in) throws IOException { |
| super(in, new SubReaderWrapper() { |
| @Override |
| public LeafReader wrap(LeafReader reader) { |
| return new FilterLeafReader(reader) { |
| |
| @Override |
| public CacheHelper getCoreCacheHelper() { |
| return null; |
| } |
| |
| @Override |
| public CacheHelper getReaderCacheHelper() { |
| return null; |
| }}; |
| } |
| }); |
| } |
| |
| @Override |
| protected DirectoryReader doWrapDirectoryReader(DirectoryReader in) throws IOException { |
| return new DummyDirectoryReader(in); |
| } |
| |
| @Override |
| public CacheHelper getReaderCacheHelper() { |
| return null; |
| } |
| } |
| } |