/**
* 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.blur.filter;
import static org.junit.Assert.assertEquals;
import java.io.IOException;
import java.util.Arrays;
import java.util.TreeSet;
import org.apache.blur.lucene.codec.Blur022Codec;
import org.apache.lucene.analysis.core.KeywordAnalyzer;
import org.apache.lucene.document.Document;
import org.apache.lucene.document.Field.Store;
import org.apache.lucene.document.StringField;
import org.apache.lucene.index.DirectoryReader;
import org.apache.lucene.index.IndexWriter;
import org.apache.lucene.index.IndexWriterConfig;
import org.apache.lucene.index.Term;
import org.apache.lucene.search.Filter;
import org.apache.lucene.search.IndexSearcher;
import org.apache.lucene.search.Query;
import org.apache.lucene.search.QueryWrapperFilter;
import org.apache.lucene.search.TermQuery;
import org.apache.lucene.search.TopDocs;
import org.apache.lucene.store.RAMDirectory;
import org.apache.lucene.util.Version;
import org.junit.Test;
public class FilterCacheTest {
@Test
public void test1() throws IOException {
Filter filter = new QueryWrapperFilter(new TermQuery(new Term("f1", "t1")));
FilterCache filterCache = new FilterCache("filter1", filter);
RAMDirectory directory = new RAMDirectory();
writeDocs(filterCache, directory);
DirectoryReader reader = DirectoryReader.open(directory);
IndexSearcher searcher = new IndexSearcher(reader);
Query query = new TermQuery(new Term("f2", "t2"));
TopDocs topDocs1 = searcher.search(query, filterCache, 10);
assertEquals(1, filterCache.getMisses());
assertEquals(0, filterCache.getHits());
assertEquals(1, topDocs1.totalHits);
TopDocs topDocs2 = searcher.search(query, filterCache, 10);
assertEquals(1, filterCache.getMisses());
assertEquals(1, filterCache.getHits());
assertEquals(1, topDocs2.totalHits);
TopDocs topDocs3 = searcher.search(query, filterCache, 10);
assertEquals(1, filterCache.getMisses());
assertEquals(2, filterCache.getHits());
assertEquals(1, topDocs3.totalHits);
}
@Test
public void test2() throws IOException {
Filter filter = new QueryWrapperFilter(new TermQuery(new Term("f1", "t1")));
FilterCache filterCache = new FilterCache("filter1", filter);
RAMDirectory directory = new RAMDirectory();
writeDocs(filterCache, directory);
DirectoryReader reader = DirectoryReader.open(directory);
IndexSearcher searcher = new IndexSearcher(reader);
Query query = new TermQuery(new Term("f2", "t2"));
TopDocs topDocs1 = searcher.search(query, filterCache, 10);
assertEquals(1, filterCache.getMisses());
assertEquals(0, filterCache.getHits());
assertEquals(1, topDocs1.totalHits);
TopDocs topDocs2 = searcher.search(query, filterCache, 10);
assertEquals(1, filterCache.getMisses());
assertEquals(1, filterCache.getHits());
assertEquals(1, topDocs2.totalHits);
TopDocs topDocs3 = searcher.search(query, filterCache, 10);
assertEquals(1, filterCache.getMisses());
assertEquals(2, filterCache.getHits());
assertEquals(1, topDocs3.totalHits);
System.out.println("===============");
for (String s : new TreeSet<String>(Arrays.asList(directory.listAll()))) {
System.out.println(s);
}
writeDocs(filterCache, directory);
System.out.println("===============");
for (String s : new TreeSet<String>(Arrays.asList(directory.listAll()))) {
System.out.println(s);
}
}
private void writeDocs(FilterCache filterCache, RAMDirectory directory) throws IOException {
IndexWriterConfig conf = new IndexWriterConfig(Version.LUCENE_43, new KeywordAnalyzer());
conf.setCodec(new Blur022Codec());
IndexWriter indexWriter = new IndexWriter(directory, conf);
int count = 10000;
addDocs(indexWriter, count);
indexWriter.close();
}
private void addDocs(IndexWriter indexWriter, int count) throws IOException {
for (int i = 0; i < count; i++) {
Document document = new Document();
document.add(new StringField("f1", "t" + i, Store.YES));
document.add(new StringField("f2", "t2", Store.YES));
indexWriter.addDocument(document);
}
}
}