/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch 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.elasticsearch.search.profile.query;
import org.apache.lucene.document.Document;
import org.apache.lucene.document.Field.Store;
import org.apache.lucene.document.StringField;
import org.apache.lucene.index.IndexReader;
import org.apache.lucene.index.RandomIndexWriter;
import org.apache.lucene.index.Term;
import org.apache.lucene.search.IndexSearcher;
import org.apache.lucene.search.LeafCollector;
import org.apache.lucene.search.Query;
import org.apache.lucene.search.RandomApproximationQuery;
import org.apache.lucene.search.Sort;
import org.apache.lucene.search.TermQuery;
import org.apache.lucene.search.TotalHitCountCollector;
import org.apache.lucene.store.Directory;
import org.apache.lucene.util.IOUtils;
import org.apache.lucene.util.TestUtil;
import org.elasticsearch.index.engine.Engine;
import org.elasticsearch.search.internal.ContextIndexSearcher;
import org.elasticsearch.search.profile.ProfileResult;
import org.elasticsearch.test.ESTestCase;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import java.io.IOException;
import java.util.List;
import java.util.Map;
import static org.hamcrest.Matchers.equalTo;
import static org.hamcrest.Matchers.greaterThan;
public class QueryProfilerTests extends ESTestCase {
static Directory dir;
static IndexReader reader;
static ContextIndexSearcher searcher;
@BeforeClass
public static void setup() throws IOException {
dir = newDirectory();
RandomIndexWriter w = new RandomIndexWriter(random(), dir);
final int numDocs = TestUtil.nextInt(random(), 1, 20);
for (int i = 0; i < numDocs; ++i) {
final int numHoles = random().nextInt(5);
for (int j = 0; j < numHoles; ++j) {
w.addDocument(new Document());
}
Document doc = new Document();
doc.add(new StringField("foo", "bar", Store.NO));
w.addDocument(doc);
}
reader = w.getReader();
w.close();
Engine.Searcher engineSearcher = new Engine.Searcher("test", new IndexSearcher(reader));
searcher = new ContextIndexSearcher(engineSearcher, IndexSearcher.getDefaultQueryCache(), MAYBE_CACHE_POLICY);
}
@AfterClass
public static void cleanup() throws IOException {
IOUtils.close(reader, dir);
dir = null;
reader = null;
searcher = null;
}
public void testBasic() throws IOException {
QueryProfiler profiler = new QueryProfiler();
searcher.setProfiler(profiler);
Query query = new TermQuery(new Term("foo", "bar"));
searcher.search(query, 1);
List<ProfileResult> results = profiler.getTree();
assertEquals(1, results.size());
Map<String, Long> breakdown = results.get(0).getTimeBreakdown();
assertThat(breakdown.get(QueryTimingType.CREATE_WEIGHT.toString()).longValue(), greaterThan(0L));
assertThat(breakdown.get(QueryTimingType.BUILD_SCORER.toString()).longValue(), greaterThan(0L));
assertThat(breakdown.get(QueryTimingType.NEXT_DOC.toString()).longValue(), greaterThan(0L));
assertThat(breakdown.get(QueryTimingType.ADVANCE.toString()).longValue(), equalTo(0L));
assertThat(breakdown.get(QueryTimingType.SCORE.toString()).longValue(), greaterThan(0L));
assertThat(breakdown.get(QueryTimingType.MATCH.toString()).longValue(), equalTo(0L));
assertThat(breakdown.get(QueryTimingType.CREATE_WEIGHT.toString() + "_count").longValue(), greaterThan(0L));
assertThat(breakdown.get(QueryTimingType.BUILD_SCORER.toString() + "_count").longValue(), greaterThan(0L));
assertThat(breakdown.get(QueryTimingType.NEXT_DOC.toString() + "_count").longValue(), greaterThan(0L));
assertThat(breakdown.get(QueryTimingType.ADVANCE.toString() + "_count").longValue(), equalTo(0L));
assertThat(breakdown.get(QueryTimingType.SCORE.toString() + "_count").longValue(), greaterThan(0L));
assertThat(breakdown.get(QueryTimingType.MATCH.toString() + "_count").longValue(), equalTo(0L));
long rewriteTime = profiler.getRewriteTime();
assertThat(rewriteTime, greaterThan(0L));
}
public void testNoScoring() throws IOException {
QueryProfiler profiler = new QueryProfiler();
searcher.setProfiler(profiler);
Query query = new TermQuery(new Term("foo", "bar"));
searcher.search(query, 1, Sort.INDEXORDER); // scores are not needed
List<ProfileResult> results = profiler.getTree();
assertEquals(1, results.size());
Map<String, Long> breakdown = results.get(0).getTimeBreakdown();
assertThat(breakdown.get(QueryTimingType.CREATE_WEIGHT.toString()).longValue(), greaterThan(0L));
assertThat(breakdown.get(QueryTimingType.BUILD_SCORER.toString()).longValue(), greaterThan(0L));
assertThat(breakdown.get(QueryTimingType.NEXT_DOC.toString()).longValue(), greaterThan(0L));
assertThat(breakdown.get(QueryTimingType.ADVANCE.toString()).longValue(), equalTo(0L));
assertThat(breakdown.get(QueryTimingType.SCORE.toString()).longValue(), equalTo(0L));
assertThat(breakdown.get(QueryTimingType.MATCH.toString()).longValue(), equalTo(0L));
assertThat(breakdown.get(QueryTimingType.CREATE_WEIGHT.toString() + "_count").longValue(), greaterThan(0L));
assertThat(breakdown.get(QueryTimingType.BUILD_SCORER.toString() + "_count").longValue(), greaterThan(0L));
assertThat(breakdown.get(QueryTimingType.NEXT_DOC.toString() + "_count").longValue(), greaterThan(0L));
assertThat(breakdown.get(QueryTimingType.ADVANCE.toString() + "_count").longValue(), equalTo(0L));
assertThat(breakdown.get(QueryTimingType.SCORE.toString() + "_count").longValue(), equalTo(0L));
assertThat(breakdown.get(QueryTimingType.MATCH.toString() + "_count").longValue(), equalTo(0L));
long rewriteTime = profiler.getRewriteTime();
assertThat(rewriteTime, greaterThan(0L));
}
public void testUseIndexStats() throws IOException {
QueryProfiler profiler = new QueryProfiler();
searcher.setProfiler(profiler);
Query query = new TermQuery(new Term("foo", "bar"));
searcher.count(query); // will use index stats
List<ProfileResult> results = profiler.getTree();
assertEquals(0, results.size());
long rewriteTime = profiler.getRewriteTime();
assertThat(rewriteTime, greaterThan(0L));
}
public void testApproximations() throws IOException {
QueryProfiler profiler = new QueryProfiler();
Engine.Searcher engineSearcher = new Engine.Searcher("test", new IndexSearcher(reader));
// disable query caching since we want to test approximations, which won't
// be exposed on a cached entry
ContextIndexSearcher searcher = new ContextIndexSearcher(engineSearcher, null, MAYBE_CACHE_POLICY);
searcher.setProfiler(profiler);
Query query = new RandomApproximationQuery(new TermQuery(new Term("foo", "bar")), random());
searcher.count(query);
List<ProfileResult> results = profiler.getTree();
assertEquals(1, results.size());
Map<String, Long> breakdown = results.get(0).getTimeBreakdown();
assertThat(breakdown.get(QueryTimingType.CREATE_WEIGHT.toString()).longValue(), greaterThan(0L));
assertThat(breakdown.get(QueryTimingType.BUILD_SCORER.toString()).longValue(), greaterThan(0L));
assertThat(breakdown.get(QueryTimingType.NEXT_DOC.toString()).longValue(), greaterThan(0L));
assertThat(breakdown.get(QueryTimingType.ADVANCE.toString()).longValue(), equalTo(0L));
assertThat(breakdown.get(QueryTimingType.SCORE.toString()).longValue(), equalTo(0L));
assertThat(breakdown.get(QueryTimingType.MATCH.toString()).longValue(), greaterThan(0L));
assertThat(breakdown.get(QueryTimingType.CREATE_WEIGHT.toString() + "_count").longValue(), greaterThan(0L));
assertThat(breakdown.get(QueryTimingType.BUILD_SCORER.toString() + "_count").longValue(), greaterThan(0L));
assertThat(breakdown.get(QueryTimingType.NEXT_DOC.toString() + "_count").longValue(), greaterThan(0L));
assertThat(breakdown.get(QueryTimingType.ADVANCE.toString() + "_count").longValue(), equalTo(0L));
assertThat(breakdown.get(QueryTimingType.SCORE.toString() + "_count").longValue(), equalTo(0L));
assertThat(breakdown.get(QueryTimingType.MATCH.toString() + "_count").longValue(), greaterThan(0L));
long rewriteTime = profiler.getRewriteTime();
assertThat(rewriteTime, greaterThan(0L));
}
public void testCollector() throws IOException {
TotalHitCountCollector collector = new TotalHitCountCollector();
ProfileCollector profileCollector = new ProfileCollector(collector);
assertEquals(0, profileCollector.getTime());
final LeafCollector leafCollector = profileCollector.getLeafCollector(reader.leaves().get(0));
assertThat(profileCollector.getTime(), greaterThan(0L));
long time = profileCollector.getTime();
leafCollector.setScorer(null);
assertThat(profileCollector.getTime(), greaterThan(time));
time = profileCollector.getTime();
leafCollector.collect(0);
assertThat(profileCollector.getTime(), greaterThan(time));
}
}