/*
* Licensed to ElasticSearch and Shay Banon 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.test.unit.index.cache.filter;
import org.apache.lucene.index.IndexReader;
import org.apache.lucene.index.IndexWriter;
import org.apache.lucene.index.IndexWriterConfig;
import org.apache.lucene.index.Term;
import org.apache.lucene.search.*;
import org.apache.lucene.store.Directory;
import org.apache.lucene.store.RAMDirectory;
import org.elasticsearch.common.lucene.Lucene;
import org.elasticsearch.common.lucene.search.TermFilter;
import org.elasticsearch.index.Index;
import org.elasticsearch.index.cache.filter.FilterCache;
import org.elasticsearch.index.cache.filter.none.NoneFilterCache;
import org.testng.annotations.Test;
import java.io.IOException;
import static org.elasticsearch.common.lucene.DocumentBuilder.doc;
import static org.elasticsearch.common.lucene.DocumentBuilder.field;
import static org.elasticsearch.common.settings.ImmutableSettings.Builder.EMPTY_SETTINGS;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.equalTo;
/**
*
*/
public class FilterCacheTests {
@Test
public void testNoCache() throws Exception {
verifyCache(new NoneFilterCache(new Index("test"), EMPTY_SETTINGS));
}
private void verifyCache(FilterCache filterCache) throws Exception {
Directory dir = new RAMDirectory();
IndexWriter indexWriter = new IndexWriter(dir, new IndexWriterConfig(Lucene.VERSION, Lucene.STANDARD_ANALYZER));
IndexReader reader = IndexReader.open(indexWriter, true);
for (int i = 0; i < 100; i++) {
indexWriter.addDocument(doc()
.add(field("id", Integer.toString(i)))
.boost(i).build());
}
reader = refreshReader(reader);
IndexSearcher searcher = new IndexSearcher(reader);
assertThat(Lucene.count(searcher, new ConstantScoreQuery(filterCache.cache(new TermFilter(new Term("id", "1"))))), equalTo(1l));
assertThat(Lucene.count(searcher, new FilteredQuery(new MatchAllDocsQuery(), filterCache.cache(new TermFilter(new Term("id", "1"))))), equalTo(1l));
indexWriter.deleteDocuments(new Term("id", "1"));
reader = refreshReader(reader);
searcher = new IndexSearcher(reader);
TermFilter filter = new TermFilter(new Term("id", "1"));
Filter cachedFilter = filterCache.cache(filter);
long constantScoreCount = filter == cachedFilter ? 0 : 1;
// sadly, when caching based on cacheKey with NRT, this fails, that's why we have DeletionAware one
assertThat(Lucene.count(searcher, new ConstantScoreQuery(cachedFilter)), equalTo(constantScoreCount));
assertThat(Lucene.count(searcher, new DeletionAwareConstantScoreQuery(cachedFilter)), equalTo(0l));
assertThat(Lucene.count(searcher, new FilteredQuery(new MatchAllDocsQuery(), cachedFilter)), equalTo(0l));
indexWriter.close();
}
private IndexReader refreshReader(IndexReader reader) throws IOException {
IndexReader oldReader = reader;
reader = reader.reopen();
if (reader != oldReader) {
oldReader.close();
}
return reader;
}
}