| /* |
| * 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.document.IntPoint; |
| import org.apache.lucene.index.IndexReader; |
| import org.apache.lucene.index.LeafReaderContext; |
| import org.apache.lucene.index.RandomIndexWriter; |
| import org.apache.lucene.index.Term; |
| import org.apache.lucene.search.BooleanClause.Occur; |
| import org.apache.lucene.store.Directory; |
| import org.apache.lucene.util.LuceneTestCase; |
| |
| public class TestUsageTrackingFilterCachingPolicy extends LuceneTestCase { |
| |
| public void testCostlyFilter() { |
| assertTrue(UsageTrackingQueryCachingPolicy.isCostly(new PrefixQuery(new Term("field", "prefix")))); |
| assertTrue(UsageTrackingQueryCachingPolicy.isCostly(IntPoint.newRangeQuery("intField", 1, 1000))); |
| assertFalse(UsageTrackingQueryCachingPolicy.isCostly(new TermQuery(new Term("field", "value")))); |
| } |
| |
| public void testNeverCacheMatchAll() throws Exception { |
| Query q = new MatchAllDocsQuery(); |
| UsageTrackingQueryCachingPolicy policy = new UsageTrackingQueryCachingPolicy(); |
| for (int i = 0; i < 1000; ++i) { |
| policy.onUse(q); |
| } |
| assertFalse(policy.shouldCache(q)); |
| } |
| |
| public void testNeverCacheTermFilter() throws IOException { |
| Query q = new TermQuery(new Term("foo", "bar")); |
| UsageTrackingQueryCachingPolicy policy = new UsageTrackingQueryCachingPolicy(); |
| for (int i = 0; i < 1000; ++i) { |
| policy.onUse(q); |
| } |
| assertFalse(policy.shouldCache(q)); |
| } |
| |
| public void testNeverCacheDocValuesFieldExistsFilter() throws IOException { |
| Query q = new DocValuesFieldExistsQuery("foo"); |
| UsageTrackingQueryCachingPolicy policy = new UsageTrackingQueryCachingPolicy(); |
| for (int i = 0; i < 1000; ++i) { |
| policy.onUse(q); |
| } |
| assertFalse(policy.shouldCache(q)); |
| } |
| |
| public void testBooleanQueries() throws IOException { |
| Directory dir = newDirectory(); |
| RandomIndexWriter w = new RandomIndexWriter(random(), dir); |
| w.addDocument(new Document()); |
| IndexReader reader = w.getReader(); |
| w.close(); |
| |
| IndexSearcher searcher = new IndexSearcher(reader); |
| UsageTrackingQueryCachingPolicy policy = new UsageTrackingQueryCachingPolicy(); |
| LRUQueryCache cache = new LRUQueryCache(10, Long.MAX_VALUE, new LRUQueryCache.MinSegmentSizePredicate(1, 0f), Float.POSITIVE_INFINITY); |
| searcher.setQueryCache(cache); |
| searcher.setQueryCachingPolicy(policy); |
| |
| DummyQuery q1 = new DummyQuery(1); |
| DummyQuery q2 = new DummyQuery(2); |
| BooleanQuery bq = new BooleanQuery.Builder() |
| .add(q1, Occur.SHOULD) |
| .add(q2, Occur.SHOULD) |
| .build(); |
| |
| for (int i = 0; i < 3; ++i) { |
| searcher.count(bq); |
| } |
| assertEquals(0, cache.getCacheSize()); // nothing cached yet, too early |
| |
| searcher.count(bq); |
| assertEquals(1, cache.getCacheSize()); // the bq got cached, but not q1 and q2 |
| |
| for (int i = 0; i < 10; ++i) { |
| searcher.count(bq); |
| } |
| assertEquals(1, cache.getCacheSize()); // q1 and q2 still not cached since we do not pull scorers on them |
| |
| searcher.count(q1); |
| assertEquals(2, cache.getCacheSize()); // q1 used on its own -> cached |
| |
| reader.close(); |
| dir.close(); |
| } |
| |
| private static class DummyQuery extends Query { |
| |
| private final int id; |
| |
| DummyQuery(int id) { |
| this.id = id; |
| } |
| |
| @Override |
| public String toString(String field) { |
| return "dummy"; |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| return sameClassAs(obj) && ((DummyQuery) obj).id == id; |
| } |
| |
| @Override |
| public int hashCode() { |
| return id; |
| } |
| |
| @Override |
| public Weight createWeight(IndexSearcher searcher, ScoreMode scoreMode, float boost) throws IOException { |
| return new ConstantScoreWeight(DummyQuery.this, boost) { |
| @Override |
| public Scorer scorer(LeafReaderContext context) throws IOException { |
| return new ConstantScoreScorer(this, score(), scoreMode, DocIdSetIterator.all(1)); |
| } |
| |
| @Override |
| public boolean isCacheable(LeafReaderContext ctx) { |
| return true; |
| } |
| }; |
| } |
| |
| @Override |
| public void visit(QueryVisitor visitor) { |
| |
| } |
| |
| } |
| |
| } |