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/*
* 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.common.lucene;
import org.apache.lucene.document.Document;
import org.apache.lucene.index.DirectoryReader;
import org.apache.lucene.index.IndexReader;
import org.apache.lucene.index.LeafReader;
import org.apache.lucene.index.LeafReaderContext;
import org.apache.lucene.index.RandomIndexWriter;
import org.apache.lucene.store.AlreadyClosedException;
import org.apache.lucene.store.Directory;
import org.elasticsearch.common.lucene.index.ElasticsearchDirectoryReader;
import org.elasticsearch.index.shard.ShardId;
import org.elasticsearch.test.ESTestCase;
import java.io.IOException;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashSet;
import java.util.Set;
public class ShardCoreKeyMapTests extends ESTestCase {
public void testMissingShard() throws IOException {
try (Directory dir = newDirectory();
RandomIndexWriter w = new RandomIndexWriter(random(), dir)) {
w.addDocument(new Document());
try (IndexReader reader = w.getReader()) {
ShardCoreKeyMap map = new ShardCoreKeyMap();
for (LeafReaderContext ctx : reader.leaves()) {
try {
map.add(ctx.reader());
fail();
} catch (IllegalArgumentException expected) {
// ok
}
}
}
}
}
public void testAddingAClosedReader() throws Exception {
LeafReader reader;
try (Directory dir = newDirectory();
RandomIndexWriter writer = new RandomIndexWriter(random(), dir)) {
writer.addDocument(new Document());
try (DirectoryReader dirReader = ElasticsearchDirectoryReader.wrap(writer.getReader(), new ShardId("index1", "_na_", 1))) {
reader = dirReader.leaves().get(0).reader();
}
}
ShardCoreKeyMap map = new ShardCoreKeyMap();
try {
map.add(reader);
fail("Expected AlreadyClosedException");
} catch (AlreadyClosedException e) {
// What we wanted
}
assertEquals(0, map.size());
}
public void testBasics() throws IOException {
Directory dir1 = newDirectory();
RandomIndexWriter w1 = new RandomIndexWriter(random(), dir1);
w1.addDocument(new Document());
Directory dir2 = newDirectory();
RandomIndexWriter w2 = new RandomIndexWriter(random(), dir2);
w2.addDocument(new Document());
Directory dir3 = newDirectory();
RandomIndexWriter w3 = new RandomIndexWriter(random(), dir3);
w3.addDocument(new Document());
ShardId shardId1 = new ShardId("index1", "_na_", 1);
ShardId shardId2 = new ShardId("index1", "_na_", 3);
ShardId shardId3 = new ShardId("index2", "_na_", 2);
ElasticsearchDirectoryReader reader1 = ElasticsearchDirectoryReader.wrap(w1.getReader(), shardId1);
ElasticsearchDirectoryReader reader2 = ElasticsearchDirectoryReader.wrap(w2.getReader(), shardId2);
ElasticsearchDirectoryReader reader3 = ElasticsearchDirectoryReader.wrap(w3.getReader(), shardId3);
ShardCoreKeyMap map = new ShardCoreKeyMap();
for (DirectoryReader reader : Arrays.asList(reader1, reader2, reader3)) {
for (LeafReaderContext ctx : reader.leaves()) {
map.add(ctx.reader());
}
}
assertEquals(3, map.size());
// Adding them back is a no-op
for (LeafReaderContext ctx : reader1.leaves()) {
map.add(ctx.reader());
}
assertEquals(3, map.size());
for (LeafReaderContext ctx : reader2.leaves()) {
assertEquals(shardId2, map.getShardId(ctx.reader().getCoreCacheKey()));
}
w1.addDocument(new Document());
ElasticsearchDirectoryReader newReader1 = ElasticsearchDirectoryReader.wrap(w1.getReader(), shardId1);
reader1.close();
reader1 = newReader1;
// same for reader2, but with a force merge to trigger evictions
w2.addDocument(new Document());
w2.forceMerge(1);
ElasticsearchDirectoryReader newReader2 = ElasticsearchDirectoryReader.wrap(w2.getReader(), shardId2);
reader2.close();
reader2 = newReader2;
for (DirectoryReader reader : Arrays.asList(reader1, reader2, reader3)) {
for (LeafReaderContext ctx : reader.leaves()) {
map.add(ctx.reader());
}
}
final Set<Object> index1Keys = new HashSet<>();
for (DirectoryReader reader : Arrays.asList(reader1, reader2)) {
for (LeafReaderContext ctx : reader.leaves()) {
index1Keys.add(ctx.reader().getCoreCacheKey());
}
}
index1Keys.removeAll(map.getCoreKeysForIndex("index1"));
assertEquals(Collections.emptySet(), index1Keys);
reader1.close();
w1.close();
reader2.close();
w2.close();
reader3.close();
w3.close();
assertEquals(0, map.size());
dir1.close();
dir2.close();
dir3.close();
}
}
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