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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF 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.apache.kafka.streams.state.internals.metrics;
import org.apache.kafka.common.metrics.Sensor;
import org.apache.kafka.streams.processor.internals.metrics.StreamsMetricsImpl;
import static org.apache.kafka.streams.processor.internals.metrics.StreamsMetricsImpl.CACHE_LEVEL_GROUP;
import static org.apache.kafka.streams.processor.internals.metrics.StreamsMetricsImpl.ROLLUP_VALUE;
import static org.apache.kafka.streams.processor.internals.metrics.StreamsMetricsImpl.Version.FROM_0100_TO_24;
import static org.apache.kafka.streams.processor.internals.metrics.StreamsMetricsImpl.addAvgAndMinAndMaxToSensor;
public class NamedCacheMetrics {
private NamedCacheMetrics() {}
private static final String HIT_RATIO_0100_TO_24 = "hitRatio";
private static final String HIT_RATIO = "hit-ratio";
private static final String HIT_RATIO_AVG_DESCRIPTION = "The average cache hit ratio";
private static final String HIT_RATIO_MIN_DESCRIPTION = "The minimum cache hit ratio";
private static final String HIT_RATIO_MAX_DESCRIPTION = "The maximum cache hit ratio";
public static Sensor hitRatioSensor(final StreamsMetricsImpl streamsMetrics,
final String threadId,
final String taskName,
final String storeName) {
final Sensor hitRatioSensor;
final String hitRatioName;
if (streamsMetrics.version() == FROM_0100_TO_24) {
hitRatioName = HIT_RATIO_0100_TO_24;
final Sensor taskLevelHitRatioSensor = streamsMetrics.taskLevelSensor(
threadId,
taskName,
hitRatioName,
Sensor.RecordingLevel.DEBUG
);
addAvgAndMinAndMaxToSensor(
taskLevelHitRatioSensor,
CACHE_LEVEL_GROUP,
streamsMetrics.cacheLevelTagMap(threadId, taskName, ROLLUP_VALUE),
hitRatioName,
HIT_RATIO_AVG_DESCRIPTION,
HIT_RATIO_MIN_DESCRIPTION,
HIT_RATIO_MAX_DESCRIPTION
);
hitRatioSensor = streamsMetrics.cacheLevelSensor(
threadId,
taskName,
storeName,
hitRatioName,
Sensor.RecordingLevel.DEBUG,
taskLevelHitRatioSensor
);
} else {
hitRatioName = HIT_RATIO;
hitRatioSensor = streamsMetrics.cacheLevelSensor(
threadId,
taskName,
storeName,
hitRatioName,
Sensor.RecordingLevel.DEBUG
);
}
addAvgAndMinAndMaxToSensor(
hitRatioSensor,
CACHE_LEVEL_GROUP,
streamsMetrics.cacheLevelTagMap(threadId, taskName, storeName),
hitRatioName,
HIT_RATIO_AVG_DESCRIPTION,
HIT_RATIO_MIN_DESCRIPTION,
HIT_RATIO_MAX_DESCRIPTION
);
return hitRatioSensor;
}
}
