org.apache.pulsar.client.impl.metrics.UpDownCounter Maven / Gradle / Ivy
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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
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* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
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*/
package org.apache.pulsar.client.impl.metrics;
import static org.apache.pulsar.client.impl.metrics.MetricsUtil.getDefaultAggregationLabels;
import static org.apache.pulsar.client.impl.metrics.MetricsUtil.getTopicAttributes;
import io.opentelemetry.api.common.Attributes;
import io.opentelemetry.api.incubator.metrics.ExtendedLongUpDownCounterBuilder;
import io.opentelemetry.api.metrics.LongUpDownCounter;
import io.opentelemetry.api.metrics.LongUpDownCounterBuilder;
import io.opentelemetry.api.metrics.Meter;
public class UpDownCounter {
private final LongUpDownCounter counter;
private final Attributes attributes;
UpDownCounter(Meter meter, String name, Unit unit, String description, String topic, Attributes attributes) {
LongUpDownCounterBuilder builder = meter.upDownCounterBuilder(name)
.setDescription(description)
.setUnit(unit.toString());
if (topic != null) {
if (builder instanceof ExtendedLongUpDownCounterBuilder) {
ExtendedLongUpDownCounterBuilder eb = (ExtendedLongUpDownCounterBuilder) builder;
eb.setAttributesAdvice(getDefaultAggregationLabels(attributes));
}
attributes = getTopicAttributes(topic, attributes);
}
this.counter = builder.build();
this.attributes = attributes;
}
public void increment() {
add(1);
}
public void decrement() {
add(-1);
}
public void add(long delta) {
counter.add(delta, attributes);
}
public void subtract(long diff) {
add(-diff);
}
}