bookkeeper-stats-providers/prometheus-metrics-provider/src/main/java/org/apache/bookkeeper/stats/prometheus/SimpleGauge.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.bookkeeper.stats.prometheus;

import java.util.Map;
import org.apache.bookkeeper.stats.Gauge;

/**
 * A {@link Gauge} implementation that forwards on the value supplier.
 */
public class SimpleGauge<T extends Number> {

    private final Map<String, String> labels;
    private final Gauge<T> gauge;

    public SimpleGauge(final Gauge<T> gauge, Map<String, String> labels) {
        this.gauge = gauge;
        this.labels = labels;
    }

    Number getSample() {
        return gauge.getSample();
    }

    public Map<String, String> getLabels() {
        return labels;
    }
}