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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.test.store;
import org.elasticsearch.common.Nullable;
import org.elasticsearch.common.logging.ESLogger;
import org.elasticsearch.common.logging.Loggers;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.index.IndexModule;
import org.elasticsearch.index.IndexSettings;
import org.elasticsearch.index.shard.*;
import org.elasticsearch.index.store.DirectoryService;
import org.elasticsearch.index.store.IndexStore;
import org.elasticsearch.index.store.IndexStoreConfig;
import org.elasticsearch.plugins.Plugin;
import java.util.Collections;
import java.util.EnumSet;
import java.util.IdentityHashMap;
import java.util.Map;
public class MockFSIndexStore extends IndexStore {
public static final String CHECK_INDEX_ON_CLOSE = "index.store.mock.check_index_on_close";
public static class TestPlugin extends Plugin {
@Override
public String name() {
return "mock-index-store";
}
@Override
public String description() {
return "a mock index store for testing";
}
@Override
public Settings additionalSettings() {
return Settings.builder().put(IndexModule.STORE_TYPE, "mock").build();
}
@Override
public void onIndexModule(IndexModule indexModule) {
Settings indexSettings = indexModule.getSettings();
if ("mock".equals(indexSettings.get(IndexModule.STORE_TYPE))) {
if (indexSettings.getAsBoolean(CHECK_INDEX_ON_CLOSE, true)) {
indexModule.addIndexEventListener(new Listener());
}
indexModule.addIndexStore("mock", MockFSIndexStore::new);
}
}
}
MockFSIndexStore(IndexSettings indexSettings,
IndexStoreConfig config) {
super(indexSettings, config);
}
public DirectoryService newDirectoryService(ShardPath path) {
return new MockFSDirectoryService(indexSettings, this, path);
}
private static final EnumSet<IndexShardState> validCheckIndexStates = EnumSet.of(
IndexShardState.STARTED, IndexShardState.RELOCATED, IndexShardState.POST_RECOVERY
);
private static final class Listener implements IndexEventListener {
private final Map<IndexShard, Boolean> shardSet = Collections.synchronizedMap(new IdentityHashMap<>());
@Override
public void afterIndexShardClosed(ShardId shardId, @Nullable IndexShard indexShard, Settings indexSettings) {
if (indexShard != null) {
Boolean remove = shardSet.remove(indexShard);
if (remove == Boolean.TRUE) {
ESLogger logger = Loggers.getLogger(getClass(), indexShard.indexSettings().getSettings(), indexShard.shardId());
MockFSDirectoryService.checkIndex(logger, indexShard.store(), indexShard.shardId());
}
}
}
@Override
public void indexShardStateChanged(IndexShard indexShard, @Nullable IndexShardState previousState, IndexShardState currentState, @Nullable String reason) {
if (currentState == IndexShardState.CLOSED && validCheckIndexStates.contains(previousState) && indexShard.indexSettings().isOnSharedFilesystem() == false) {
shardSet.put(indexShard, Boolean.TRUE);
}
}
}
}
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