io.trino.filesystem.alluxio.AlluxioCacheStats Maven / Gradle / Ivy

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/*
 * Licensed 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 io.trino.filesystem.alluxio;

import com.google.errorprone.annotations.ThreadSafe;
import io.airlift.stats.DistributionStat;
import org.weakref.jmx.Managed;
import org.weakref.jmx.Nested;

@ThreadSafe
public class AlluxioCacheStats
{
    private final DistributionStat externalReads = new DistributionStat();
    private final DistributionStat cacheReads = new DistributionStat();

    @Managed
    @Nested
    public DistributionStat getExternalReads()
    {
        return externalReads;
    }

    @Managed
    @Nested
    public DistributionStat getCacheReads()
    {
        return cacheReads;
    }

    public void recordCacheRead(int length)
    {
        cacheReads.add(length);
    }

    public void recordExternalRead(int length)
    {
        externalReads.add(length);
    }
}