org.apache.kafka.common.metrics.Measurable Maven / Gradle / Ivy
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* 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
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package org.apache.kafka.common.metrics;
/**
* A measurable quantity that can be registered as a metric
*/
public interface Measurable extends MetricValueProvider {
/**
* Measure this quantity and return the result as a double
* @param config The configuration for this metric
* @param now The POSIX time in milliseconds the measurement is being taken
* @return The measured value
*/
double measure(MetricConfig config, long now);
}