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Elasticsearch subproject :server
/*
* 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.indices;
import org.elasticsearch.common.bytes.BytesReference;
import org.elasticsearch.common.cache.RemovalNotification;
import org.elasticsearch.index.cache.request.ShardRequestCache;
import org.elasticsearch.index.shard.IndexShard;
/**
* Abstract base class for the an {@link IndexShard} level {@linkplain IndicesRequestCache.CacheEntity}.
*/
abstract class AbstractIndexShardCacheEntity implements IndicesRequestCache.CacheEntity {
/**
* Get the {@linkplain ShardRequestCache} used to track cache statistics.
*/
protected abstract ShardRequestCache stats();
@Override
public final void onCached(IndicesRequestCache.Key key, BytesReference value) {
stats().onCached(key, value);
}
@Override
public final void onHit() {
stats().onHit();
}
@Override
public final void onMiss() {
stats().onMiss();
}
@Override
public final void onRemoval(RemovalNotification notification) {
stats().onRemoval(
notification.getKey(),
notification.getValue(),
notification.getRemovalReason() == RemovalNotification.RemovalReason.EVICTED
);
}
}