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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.index;
import org.elasticsearch.cluster.routing.ShardRouting;
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.shard.IndexShard;
import org.elasticsearch.index.shard.IndexShardState;
import org.elasticsearch.index.shard.IndexEventListener;
import org.elasticsearch.index.shard.ShardId;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
/**
* A composite {@link IndexEventListener} that forwards all callbacks to an immutable list of IndexEventListener
*/
final class CompositeIndexEventListener implements IndexEventListener {
private final List<IndexEventListener> listeners;
private final ESLogger logger;
CompositeIndexEventListener(IndexSettings indexSettings, Collection<IndexEventListener> listeners) {
for (IndexEventListener listener : listeners) {
if (listener == null) {
throw new IllegalArgumentException("listeners must be non-null");
}
}
this.listeners = Collections.unmodifiableList(new ArrayList<>(listeners));
this.logger = Loggers.getLogger(getClass(), indexSettings.getSettings(), indexSettings.getIndex());
}
@Override
public void shardRoutingChanged(IndexShard indexShard, @Nullable ShardRouting oldRouting, ShardRouting newRouting) {
for (IndexEventListener listener : listeners) {
try {
listener.shardRoutingChanged(indexShard, oldRouting, newRouting);
} catch (Throwable t) {
logger.warn("[{}] failed to invoke shard touring changed callback", t, indexShard.shardId().getId());
}
}
}
@Override
public void afterIndexShardCreated(IndexShard indexShard) {
for (IndexEventListener listener : listeners) {
try {
listener.afterIndexShardCreated(indexShard);
} catch (Throwable t) {
logger.warn("[{}] failed to invoke after shard created callback", t, indexShard.shardId().getId());
throw t;
}
}
}
@Override
public void afterIndexShardStarted(IndexShard indexShard) {
for (IndexEventListener listener : listeners) {
try {
listener.afterIndexShardStarted(indexShard);
} catch (Throwable t) {
logger.warn("[{}] failed to invoke after shard started callback", t, indexShard.shardId().getId());
throw t;
}
}
}
@Override
public void beforeIndexShardClosed(ShardId shardId, @Nullable IndexShard indexShard,
Settings indexSettings) {
for (IndexEventListener listener : listeners) {
try {
listener.beforeIndexShardClosed(shardId, indexShard, indexSettings);
} catch (Throwable t) {
logger.warn("[{}] failed to invoke before shard closed callback", t, shardId.getId());
throw t;
}
}
}
@Override
public void afterIndexShardClosed(ShardId shardId, @Nullable IndexShard indexShard,
Settings indexSettings) {
for (IndexEventListener listener : listeners) {
try {
listener.afterIndexShardClosed(shardId, indexShard, indexSettings);
} catch (Throwable t) {
logger.warn("[{}] failed to invoke after shard closed callback", t, shardId.getId());
throw t;
}
}
}
@Override
public void onShardInactive(IndexShard indexShard) {
for (IndexEventListener listener : listeners) {
try {
listener.onShardInactive(indexShard);
} catch (Throwable t) {
logger.warn("[{}] failed to invoke on shard inactive callback", t, indexShard.shardId().getId());
throw t;
}
}
}
@Override
public void onShardActive(IndexShard indexShard) {
for (IndexEventListener listener : listeners) {
try {
listener.onShardActive(indexShard);
} catch (Throwable t) {
logger.warn("[{}] failed to invoke on shard active callback", t, indexShard.shardId().getId());
throw t;
}
}
}
@Override
public void indexShardStateChanged(IndexShard indexShard, @Nullable IndexShardState previousState, IndexShardState currentState, @Nullable String reason) {
for (IndexEventListener listener : listeners) {
try {
listener.indexShardStateChanged(indexShard, previousState, indexShard.state(), reason);
} catch (Throwable t) {
logger.warn("[{}] failed to invoke index shard state changed callback", t, indexShard.shardId().getId());
throw t;
}
}
}
@Override
public void beforeIndexCreated(Index index, Settings indexSettings) {
for (IndexEventListener listener : listeners) {
try {
listener.beforeIndexCreated(index, indexSettings);
} catch (Throwable t) {
logger.warn("failed to invoke before index created callback", t);
throw t;
}
}
}
@Override
public void afterIndexCreated(IndexService indexService) {
for (IndexEventListener listener : listeners) {
try {
listener.afterIndexCreated(indexService);
} catch (Throwable t) {
logger.warn("failed to invoke after index created callback", t);
throw t;
}
}
}
@Override
public void beforeIndexShardCreated(ShardId shardId, Settings indexSettings) {
for (IndexEventListener listener : listeners) {
try {
listener.beforeIndexShardCreated(shardId, indexSettings);
} catch (Throwable t) {
logger.warn("[{}] failed to invoke before shard created callback", t, shardId);
throw t;
}
}
}
@Override
public void beforeIndexClosed(IndexService indexService) {
for (IndexEventListener listener : listeners) {
try {
listener.beforeIndexClosed(indexService);
} catch (Throwable t) {
logger.warn("failed to invoke before index closed callback", t);
throw t;
}
}
}
@Override
public void beforeIndexDeleted(IndexService indexService) {
for (IndexEventListener listener : listeners) {
try {
listener.beforeIndexDeleted(indexService);
} catch (Throwable t) {
logger.warn("failed to invoke before index deleted callback", t);
throw t;
}
}
}
@Override
public void afterIndexDeleted(Index index, Settings indexSettings) {
for (IndexEventListener listener : listeners) {
try {
listener.afterIndexDeleted(index, indexSettings);
} catch (Throwable t) {
logger.warn("failed to invoke after index deleted callback", t);
throw t;
}
}
}
@Override
public void afterIndexClosed(Index index, Settings indexSettings) {
for (IndexEventListener listener : listeners) {
try {
listener.afterIndexClosed(index, indexSettings);
} catch (Throwable t) {
logger.warn("failed to invoke after index closed callback", t);
throw t;
}
}
}
@Override
public void beforeIndexShardDeleted(ShardId shardId,
Settings indexSettings) {
for (IndexEventListener listener : listeners) {
try {
listener.beforeIndexShardDeleted(shardId, indexSettings);
} catch (Throwable t) {
logger.warn("[{}] failed to invoke before shard deleted callback", t, shardId.getId());
throw t;
}
}
}
@Override
public void afterIndexShardDeleted(ShardId shardId,
Settings indexSettings) {
for (IndexEventListener listener : listeners) {
try {
listener.afterIndexShardDeleted(shardId, indexSettings);
} catch (Throwable t) {
logger.warn("[{}] failed to invoke after shard deleted callback", t, shardId.getId());
throw t;
}
}
}
@Override
public void beforeIndexAddedToCluster(Index index, Settings indexSettings) {
for (IndexEventListener listener : listeners) {
try {
listener.beforeIndexAddedToCluster(index, indexSettings);
} catch (Throwable t) {
logger.warn("failed to invoke before index added to cluster callback", t);
throw t;
}
}
}
}
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