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The RabbitMQ Java client library allows Java applications to interface with RabbitMQ.
// Copyright (c) 2007-2020 VMware, Inc. or its affiliates. All rights reserved.
//
// This software, the RabbitMQ Java client library, is triple-licensed under the
// Mozilla Public License 2.0 ("MPL"), the GNU General Public License version 2
// ("GPL") and the Apache License version 2 ("ASL"). For the MPL, please see
// LICENSE-MPL-RabbitMQ. For the GPL, please see LICENSE-GPL2. For the ASL,
// please see LICENSE-APACHE2.
//
// This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND,
// either express or implied. See the LICENSE file for specific language governing
// rights and limitations of this software.
//
// If you have any questions regarding licensing, please contact us at
// [email protected].
package com.rabbitmq.client.impl;
import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
import com.rabbitmq.client.MetricsCollector;
import io.micrometer.core.instrument.Counter;
import io.micrometer.core.instrument.MeterRegistry;
import io.micrometer.core.instrument.Tag;
import io.micrometer.core.instrument.Tags;
import java.util.Collections;
import java.util.concurrent.atomic.AtomicLong;
import java.util.function.Function;
import static com.rabbitmq.client.impl.MicrometerMetricsCollector.Metrics.*;
/**
* Micrometer implementation of {@link MetricsCollector}.
* Note transactions are not supported (see {@link MetricsCollector}.
* Micrometer provides out-of-the-box support for report backends like JMX,
* Graphite, Ganglia, Atlas, Datadog, etc. See Micrometer documentation for
* more details.
*
* Note Micrometer requires Java 8 or more, so does this {@link MetricsCollector}.
*
* @see MetricsCollector
* @since 4.3.0
*/
public class MicrometerMetricsCollector extends AbstractMetricsCollector {
private final AtomicLong connections;
private final AtomicLong channels;
private final Counter publishedMessages;
private final Counter failedToPublishMessages;
private final Counter ackedPublishedMessages;
private final Counter nackedPublishedMessages;
private final Counter unroutedPublishedMessages;
private final Counter consumedMessages;
private final Counter acknowledgedMessages;
private final Counter rejectedMessages;
public MicrometerMetricsCollector(MeterRegistry registry) {
this(registry, "rabbitmq");
}
public MicrometerMetricsCollector(final MeterRegistry registry, final String prefix) {
this(registry, prefix, Collections.emptyList());
}
public MicrometerMetricsCollector(final MeterRegistry registry, final String prefix, final String ... tags) {
this(registry, prefix, Tags.of(tags));
}
public MicrometerMetricsCollector(final MeterRegistry registry, final String prefix, final Iterable tags) {
this(metric -> metric.create(registry, prefix, tags));
}
public MicrometerMetricsCollector(Function metricsCreator) {
this.connections = (AtomicLong) metricsCreator.apply(CONNECTIONS);
this.channels = (AtomicLong) metricsCreator.apply(CHANNELS);
this.publishedMessages = (Counter) metricsCreator.apply(PUBLISHED_MESSAGES);
this.consumedMessages = (Counter) metricsCreator.apply(CONSUMED_MESSAGES);
this.acknowledgedMessages = (Counter) metricsCreator.apply(ACKNOWLEDGED_MESSAGES);
this.rejectedMessages = (Counter) metricsCreator.apply(REJECTED_MESSAGES);
this.failedToPublishMessages = (Counter) metricsCreator.apply(FAILED_TO_PUBLISH_MESSAGES);
this.ackedPublishedMessages = (Counter) metricsCreator.apply(ACKED_PUBLISHED_MESSAGES);
this.nackedPublishedMessages = (Counter) metricsCreator.apply(NACKED_PUBLISHED_MESSAGES);
this.unroutedPublishedMessages = (Counter) metricsCreator.apply(UNROUTED_PUBLISHED_MESSAGES);
}
@Override
protected void incrementConnectionCount(Connection connection) {
connections.incrementAndGet();
}
@Override
protected void decrementConnectionCount(Connection connection) {
connections.decrementAndGet();
}
@Override
protected void incrementChannelCount(Channel channel) {
channels.incrementAndGet();
}
@Override
protected void decrementChannelCount(Channel channel) {
channels.decrementAndGet();
}
@Override
protected void markPublishedMessage() {
publishedMessages.increment();
}
@Override
protected void markMessagePublishFailed() {
failedToPublishMessages.increment();
}
@Override
protected void markConsumedMessage() {
consumedMessages.increment();
}
@Override
protected void markAcknowledgedMessage() {
acknowledgedMessages.increment();
}
@Override
protected void markRejectedMessage() {
rejectedMessages.increment();
}
@Override
protected void markMessagePublishAcknowledged() {
ackedPublishedMessages.increment();
}
@Override
protected void markMessagePublishNotAcknowledged() {
nackedPublishedMessages.increment();
}
@Override
protected void markPublishedMessageUnrouted() {
unroutedPublishedMessages.increment();
}
public AtomicLong getConnections() {
return connections;
}
public AtomicLong getChannels() {
return channels;
}
public Counter getPublishedMessages() {
return publishedMessages;
}
public Counter getFailedToPublishMessages() {
return failedToPublishMessages;
}
public Counter getAckedPublishedMessages() {
return ackedPublishedMessages;
}
public Counter getNackedPublishedMessages() {
return nackedPublishedMessages;
}
public Counter getUnroutedPublishedMessages() {
return unroutedPublishedMessages;
}
public Counter getConsumedMessages() {
return consumedMessages;
}
public Counter getAcknowledgedMessages() {
return acknowledgedMessages;
}
public Counter getRejectedMessages() {
return rejectedMessages;
}
public enum Metrics {
CONNECTIONS {
@Override
Object create(MeterRegistry registry, String prefix, Iterable tags) {
return registry.gauge(prefix + ".connections", tags, new AtomicLong(0));
}
},
CHANNELS {
@Override
Object create(MeterRegistry registry, String prefix, Iterable tags) {
return registry.gauge(prefix + ".channels", tags, new AtomicLong(0));
}
},
PUBLISHED_MESSAGES {
@Override
Object create(MeterRegistry registry, String prefix, Iterable tags) {
return registry.counter(prefix + ".published", tags);
}
},
CONSUMED_MESSAGES {
@Override
Object create(MeterRegistry registry, String prefix, Iterable tags) {
return registry.counter(prefix + ".consumed", tags);
}
},
ACKNOWLEDGED_MESSAGES {
@Override
Object create(MeterRegistry registry, String prefix, Iterable tags) {
return registry.counter(prefix + ".acknowledged", tags);
}
},
REJECTED_MESSAGES {
@Override
Object create(MeterRegistry registry, String prefix, Iterable tags) {
return registry.counter(prefix + ".rejected", tags);
}
},
FAILED_TO_PUBLISH_MESSAGES {
@Override
Object create(MeterRegistry registry, String prefix, Iterable tags) {
return registry.counter(prefix + ".failed_to_publish", tags);
}
},
ACKED_PUBLISHED_MESSAGES {
@Override
Object create(MeterRegistry registry, String prefix, Iterable tags) {
return registry.counter(prefix + ".acknowledged_published", tags);
}
},
NACKED_PUBLISHED_MESSAGES {
@Override
Object create(MeterRegistry registry, String prefix, Iterable tags) {
return registry.counter(prefix + ".not_acknowledged_published", tags);
}
},
UNROUTED_PUBLISHED_MESSAGES {
@Override
Object create(MeterRegistry registry, String prefix, Iterable tags) {
return registry.counter(prefix + ".unrouted_published", tags);
}
};
/**
*
* @param registry
* @param prefix
* @deprecated will be removed in 6.0.0
*/
@Deprecated
Object create(MeterRegistry registry, String prefix) {
return this.create(registry, prefix, Collections.emptyList());
}
abstract Object create(MeterRegistry registry, String prefix, Iterable tags);
}
}