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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.rocketmq.client.java.metrics;
import static org.apache.rocketmq.shaded.com.google.common.base.Preconditions.checkNotNull;
import org.apache.rocketmq.shaded.com.google.common.base.MoreObjects;
import org.apache.rocketmq.shaded.io.opentelemetry.api.common.Attributes;
import org.apache.rocketmq.shaded.io.opentelemetry.api.metrics.DoubleHistogram;
import org.apache.rocketmq.shaded.io.opentelemetry.api.metrics.Meter;
import org.apache.rocketmq.shaded.io.opentelemetry.sdk.metrics.SdkMeterProvider;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
import java.util.concurrent.CountDownLatch;
import org.apache.rocketmq.client.java.misc.ClientId;
import org.apache.rocketmq.client.java.route.Endpoints;
import org.apache.rocketmq.shaded.org.slf4j.Logger;
import org.apache.rocketmq.shaded.org.slf4j.LoggerFactory;
public class ClientMeter {
private static final Logger log = LoggerFactory.getLogger(ClientMeter.class);
private final boolean enabled;
private final Meter meter;
private final Endpoints endpoints;
private final SdkMeterProvider provider;
private final ClientId clientId;
private final ConcurrentMap histogramMap;
public ClientMeter(Meter meter, Endpoints endpoints, SdkMeterProvider provider, ClientId clientId) {
this.enabled = true;
this.meter = checkNotNull(meter, "meter should not be null");
this.endpoints = checkNotNull(endpoints, "endpoints should not be null");
this.provider = checkNotNull(provider, "provider should not be null");
this.clientId = checkNotNull(clientId, "clientId should not be null");
this.histogramMap = new ConcurrentHashMap<>();
}
private ClientMeter(ClientId clientId) {
this.enabled = false;
this.meter = null;
this.endpoints = null;
this.provider = null;
this.clientId = checkNotNull(clientId, "clientId should not be null");
this.histogramMap = new ConcurrentHashMap<>();
}
static ClientMeter disabledInstance(ClientId clientId) {
return new ClientMeter(clientId);
}
public boolean isEnabled() {
return enabled;
}
public void record(HistogramEnum histogramEnum, Attributes attributes, double value) {
final DoubleHistogram histogram = histogramMap.computeIfAbsent(histogramEnum.getName(), name -> enabled ?
meter.histogramBuilder(histogramEnum.getName()).build() : null);
if (null == histogram) {
return;
}
histogram.record(value, attributes);
}
public void shutdown() {
if (!enabled) {
return;
}
log.info("Begin to shutdown client meter, clientId={}, endpoints={}", clientId, endpoints);
final CountDownLatch latch = new CountDownLatch(1);
provider.shutdown().whenComplete(latch::countDown);
try {
latch.await();
log.info("Shutdown client meter successfully, clientId={}, endpoints={}", clientId, endpoints);
} catch (Throwable t) {
log.error("Failed to shutdown message meter, clientId={}, endpoints={}", clientId, endpoints, t);
}
}
public boolean satisfy(Metric metric) {
if (enabled && metric.isOn() && endpoints.equals(metric.getEndpoints())) {
return true;
}
return !enabled && !metric.isOn();
}
@Override
public String toString() {
return MoreObjects.toStringHelper(this)
.add("enabled", enabled)
.add("meter", meter)
.add("endpoints", endpoints)
.add("provider", provider)
.add("histogramMap", histogramMap)
.toString();
}
}