kafka Quota 源码

  • 2022-10-20
  • 浏览 (579)

kafka Quota 代码

文件路径:/clients/src/main/java/org/apache/kafka/common/metrics/Quota.java

/*
 * 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.common.metrics;

/**
 * An upper or lower bound for metrics
 */
public final class Quota {

    private final boolean upper;
    private final double bound;

    public Quota(double bound, boolean upper) {
        this.bound = bound;
        this.upper = upper;
    }

    public static Quota upperBound(double upperBound) {
        return new Quota(upperBound, true);
    }

    public static Quota lowerBound(double lowerBound) {
        return new Quota(lowerBound, false);
    }

    public boolean isUpperBound() {
        return this.upper;
    }

    public double bound() {
        return this.bound;
    }

    public boolean acceptable(double value) {
        return (upper && value <= bound) || (!upper && value >= bound);
    }

    @Override
    public int hashCode() {
        final int prime = 31;
        int result = 1;
        result = prime * result + (int) this.bound;
        result = prime * result + (this.upper ? 1 : 0);
        return result;
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj)
            return true;
        if (!(obj instanceof Quota))
            return false;
        Quota that = (Quota) obj;
        return (that.bound == this.bound) && (that.upper == this.upper);
    }

    @Override
    public String toString() {
        return (upper ? "upper=" : "lower=") + bound;
    }
}

相关信息

kafka 源码目录

相关文章

kafka CompoundStat 源码

kafka Gauge 源码

kafka JmxReporter 源码

kafka KafkaMetric 源码

kafka KafkaMetricsContext 源码

kafka Measurable 源码

kafka MeasurableStat 源码

kafka MetricConfig 源码

kafka MetricValueProvider 源码

kafka Metrics 源码

0  赞