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/*
* Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
* or more contributor license agreements. Licensed under the Elastic License
* 2.0 and the Server Side Public License, v 1; you may not use this file except
* in compliance with, at your election, the Elastic License 2.0 or the Server
* Side Public License, v 1.
*/
package org.elasticsearch.index;
import org.apache.logging.log4j.Logger;
import org.elasticsearch.cluster.routing.ShardRouting;
import org.elasticsearch.common.logging.Loggers;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.core.Nullable;
import org.elasticsearch.index.shard.IndexEventListener;
import org.elasticsearch.index.shard.IndexShard;
import org.elasticsearch.index.shard.IndexShardState;
import org.elasticsearch.index.shard.ShardId;
import org.elasticsearch.indices.cluster.IndicesClusterStateService.AllocatedIndices.IndexRemovalReason;
import java.util.Collection;
import java.util.List;
import static org.elasticsearch.core.Strings.format;
/**
* A composite {@link IndexEventListener} that forwards all callbacks to an immutable list of IndexEventListener
*/
final class CompositeIndexEventListener implements IndexEventListener {
private final List listeners;
private final Logger logger;
CompositeIndexEventListener(IndexSettings indexSettings, Collection listeners) {
for (IndexEventListener listener : listeners) {
if (listener == null) {
throw new IllegalArgumentException("listeners must be non-null");
}
}
this.listeners = List.copyOf(listeners);
this.logger = Loggers.getLogger(getClass(), indexSettings.getIndex());
}
@Override
public void shardRoutingChanged(IndexShard indexShard, @Nullable ShardRouting oldRouting, ShardRouting newRouting) {
for (IndexEventListener listener : listeners) {
try {
listener.shardRoutingChanged(indexShard, oldRouting, newRouting);
} catch (Exception e) {
logger.warn(() -> "[" + indexShard.shardId().getId() + "] failed to invoke shard touring changed callback", e);
}
}
}
@Override
public void afterIndexShardCreated(IndexShard indexShard) {
for (IndexEventListener listener : listeners) {
try {
listener.afterIndexShardCreated(indexShard);
} catch (Exception e) {
logger.warn(() -> "[" + indexShard.shardId().getId() + "] failed to invoke after shard created callback", e);
throw e;
}
}
}
@Override
public void afterIndexShardStarted(IndexShard indexShard) {
for (IndexEventListener listener : listeners) {
try {
listener.afterIndexShardStarted(indexShard);
} catch (Exception e) {
logger.warn(() -> "[" + indexShard.shardId().getId() + "] failed to invoke after shard started callback", e);
throw e;
}
}
}
@Override
public void beforeIndexShardClosed(ShardId shardId, @Nullable IndexShard indexShard, Settings indexSettings) {
for (IndexEventListener listener : listeners) {
try {
listener.beforeIndexShardClosed(shardId, indexShard, indexSettings);
} catch (Exception e) {
logger.warn(() -> "[" + shardId.getId() + "] failed to invoke before shard closed callback", e);
throw e;
}
}
}
@Override
public void afterIndexShardClosed(ShardId shardId, @Nullable IndexShard indexShard, Settings indexSettings) {
for (IndexEventListener listener : listeners) {
try {
listener.afterIndexShardClosed(shardId, indexShard, indexSettings);
} catch (Exception e) {
logger.warn(() -> "[" + shardId.getId() + "] failed to invoke after shard closed callback", e);
throw e;
}
}
}
@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 (Exception e) {
logger.warn(() -> format("[%s] failed to invoke index shard state changed callback", indexShard.shardId().getId()), e);
throw e;
}
}
}
@Override
public void beforeIndexCreated(Index index, Settings indexSettings) {
for (IndexEventListener listener : listeners) {
try {
listener.beforeIndexCreated(index, indexSettings);
} catch (Exception e) {
logger.warn("failed to invoke before index created callback", e);
throw e;
}
}
}
@Override
public void afterIndexCreated(IndexService indexService) {
for (IndexEventListener listener : listeners) {
try {
listener.afterIndexCreated(indexService);
} catch (Exception e) {
logger.warn("failed to invoke after index created callback", e);
throw e;
}
}
}
@Override
public void beforeIndexShardCreated(ShardRouting shardRouting, Settings indexSettings) {
for (IndexEventListener listener : listeners) {
try {
listener.beforeIndexShardCreated(shardRouting, indexSettings);
} catch (Exception e) {
logger.warn(() -> "[" + shardRouting + "] failed to invoke before shard created callback", e);
throw e;
}
}
}
@Override
public void beforeIndexRemoved(IndexService indexService, IndexRemovalReason reason) {
for (IndexEventListener listener : listeners) {
try {
listener.beforeIndexRemoved(indexService, reason);
} catch (Exception e) {
logger.warn("failed to invoke before index removed callback", e);
throw e;
}
}
}
@Override
public void afterIndexRemoved(Index index, IndexSettings indexSettings, IndexRemovalReason reason) {
for (IndexEventListener listener : listeners) {
try {
listener.afterIndexRemoved(index, indexSettings, reason);
} catch (Exception e) {
logger.warn("failed to invoke after index removed callback", e);
throw e;
}
}
}
@Override
public void beforeIndexShardDeleted(ShardId shardId, Settings indexSettings) {
for (IndexEventListener listener : listeners) {
try {
listener.beforeIndexShardDeleted(shardId, indexSettings);
} catch (Exception e) {
logger.warn(() -> "[" + shardId.getId() + "] failed to invoke before shard deleted callback", e);
throw e;
}
}
}
@Override
public void afterIndexShardDeleted(ShardId shardId, Settings indexSettings) {
for (IndexEventListener listener : listeners) {
try {
listener.afterIndexShardDeleted(shardId, indexSettings);
} catch (Exception e) {
logger.warn(() -> "[" + shardId.getId() + "] failed to invoke after shard deleted callback", e);
throw e;
}
}
}
@Override
public void beforeIndexAddedToCluster(Index index, Settings indexSettings) {
for (IndexEventListener listener : listeners) {
try {
listener.beforeIndexAddedToCluster(index, indexSettings);
} catch (Exception e) {
logger.warn("failed to invoke before index added to cluster callback", e);
throw e;
}
}
}
@Override
public void onStoreCreated(ShardId shardId) {
for (IndexEventListener listener : listeners) {
try {
listener.onStoreCreated(shardId);
} catch (Exception e) {
logger.warn("failed to invoke on store created", e);
throw e;
}
}
}
@Override
public void onStoreClosed(ShardId shardId) {
for (IndexEventListener listener : listeners) {
try {
listener.onStoreClosed(shardId);
} catch (Exception e) {
logger.warn("failed to invoke on store closed", e);
throw e;
}
}
}
@Override
public void beforeIndexShardRecovery(final IndexShard indexShard, final IndexSettings indexSettings) {
for (IndexEventListener listener : listeners) {
try {
listener.beforeIndexShardRecovery(indexShard, indexSettings);
} catch (Exception e) {
logger.warn(() -> format("failed to invoke the listener before the shard recovery starts for %s", indexShard.shardId()), e);
throw e;
}
}
}
@Override
public void afterFilesRestoredFromRepository(IndexShard indexShard) {
for (IndexEventListener listener : listeners) {
try {
listener.afterFilesRestoredFromRepository(indexShard);
} catch (Exception e) {
logger.warn(() -> "[" + indexShard.shardId() + "] failed to invoke after files restored from repository", e);
throw e;
}
}
}
}