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Merge pull request #817 from rjbaucells/opentelemetry
OpenTelemetry metrics collector implementation
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src/main/java/com/rabbitmq/client/impl/OpenTelemetryMetricsCollector.java
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| // 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 | ||
| // info@rabbitmq.com. | ||
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| package com.rabbitmq.client.impl; | ||
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| import com.rabbitmq.client.Channel; | ||
| import com.rabbitmq.client.Connection; | ||
| import com.rabbitmq.client.MetricsCollector; | ||
| import io.opentelemetry.api.OpenTelemetry; | ||
| import io.opentelemetry.api.common.Attributes; | ||
| import io.opentelemetry.api.metrics.LongCounter; | ||
| import io.opentelemetry.api.metrics.Meter; | ||
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| import java.util.concurrent.atomic.AtomicLong; | ||
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| /** | ||
| * OpenTelemetry implementation of {@link MetricsCollector}. | ||
| * | ||
| * @see MetricsCollector | ||
| * @since 5.15.1 | ||
| */ | ||
| public class OpenTelemetryMetricsCollector extends AbstractMetricsCollector { | ||
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| private final Attributes attributes; | ||
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| private final AtomicLong connections = new AtomicLong(0L); | ||
| private final AtomicLong channels = new AtomicLong(0L); | ||
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| private final LongCounter publishedMessagesCounter; | ||
| private final LongCounter consumedMessagesCounter; | ||
| private final LongCounter acknowledgedMessagesCounter; | ||
| private final LongCounter rejectedMessagesCounter; | ||
| private final LongCounter failedToPublishMessagesCounter; | ||
| private final LongCounter ackedPublishedMessagesCounter; | ||
| private final LongCounter nackedPublishedMessagesCounter; | ||
| private final LongCounter unroutedPublishedMessagesCounter; | ||
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| public OpenTelemetryMetricsCollector(OpenTelemetry openTelemetry) { | ||
| this(openTelemetry, "rabbitmq"); | ||
| } | ||
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| public OpenTelemetryMetricsCollector(final OpenTelemetry openTelemetry, final String prefix) { | ||
| this(openTelemetry, prefix, Attributes.empty()); | ||
| } | ||
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| public OpenTelemetryMetricsCollector(final OpenTelemetry openTelemetry, final String prefix, final Attributes attributes) { | ||
| // initialize meter | ||
| Meter meter = openTelemetry.getMeter("amqp-client"); | ||
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| // attributes | ||
| this.attributes = attributes; | ||
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| // connections | ||
| meter.gaugeBuilder(prefix + ".connections") | ||
| .setUnit("{connections}") | ||
| .setDescription("The number of connections to the RabbitMQ server") | ||
| .ofLongs() | ||
| .buildWithCallback(measurement -> measurement.record(connections.get(), attributes)); | ||
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| // channels | ||
| meter.gaugeBuilder(prefix + ".channels") | ||
| .setUnit("{channels}") | ||
| .setDescription("The number of channels to the RabbitMQ server") | ||
| .ofLongs() | ||
| .buildWithCallback(measurement -> measurement.record(channels.get(), attributes)); | ||
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| // publishedMessages | ||
| this.publishedMessagesCounter = meter.counterBuilder(prefix + ".published") | ||
| .setUnit("{messages}") | ||
| .setDescription("The number of messages published to the RabbitMQ server") | ||
| .build(); | ||
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| // consumedMessages | ||
| this.consumedMessagesCounter = meter.counterBuilder(prefix + ".consumed") | ||
| .setUnit("{messages}") | ||
| .setDescription("The number of messages consumed from the RabbitMQ server") | ||
| .build(); | ||
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| // acknowledgedMessages | ||
| this.acknowledgedMessagesCounter = meter.counterBuilder(prefix + ".acknowledged") | ||
| .setUnit("{messages}") | ||
| .setDescription("The number of messages acknowledged from the RabbitMQ server") | ||
| .build(); | ||
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| // rejectedMessages | ||
| this.rejectedMessagesCounter = meter.counterBuilder(prefix + ".rejected") | ||
| .setUnit("{messages}") | ||
| .setDescription("The number of messages rejected from the RabbitMQ server") | ||
| .build(); | ||
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| // failedToPublishMessages | ||
| this.failedToPublishMessagesCounter = meter.counterBuilder(prefix + ".failed_to_publish") | ||
| .setUnit("{messages}") | ||
| .setDescription("The number of messages failed to publish to the RabbitMQ server") | ||
| .build(); | ||
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| // ackedPublishedMessages | ||
| this.ackedPublishedMessagesCounter = meter.counterBuilder(prefix + ".acknowledged_published") | ||
| .setUnit("{messages}") | ||
| .setDescription("The number of published messages acknowledged by the RabbitMQ server") | ||
| .build(); | ||
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| // nackedPublishedMessages | ||
| this.nackedPublishedMessagesCounter = meter.counterBuilder(prefix + ".not_acknowledged_published") | ||
| .setUnit("{messages}") | ||
| .setDescription("The number of published messages not acknowledged by the RabbitMQ server") | ||
| .build(); | ||
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| // unroutedPublishedMessages | ||
| this.unroutedPublishedMessagesCounter = meter.counterBuilder(prefix + ".unrouted_published") | ||
| .setUnit("{messages}") | ||
| .setDescription("The number of un-routed published messages to the RabbitMQ server") | ||
| .build(); | ||
| } | ||
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| @Override | ||
| protected void incrementConnectionCount(Connection connection) { | ||
| connections.incrementAndGet(); | ||
| } | ||
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| @Override | ||
| protected void decrementConnectionCount(Connection connection) { | ||
| connections.decrementAndGet(); | ||
| } | ||
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| @Override | ||
| protected void incrementChannelCount(Channel channel) { | ||
| channels.incrementAndGet(); | ||
| } | ||
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| @Override | ||
| protected void decrementChannelCount(Channel channel) { | ||
| channels.decrementAndGet(); | ||
| } | ||
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| @Override | ||
| protected void markPublishedMessage() { | ||
| publishedMessagesCounter.add(1L, attributes); | ||
| } | ||
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| @Override | ||
| protected void markMessagePublishFailed() { | ||
| failedToPublishMessagesCounter.add(1L, attributes); | ||
| } | ||
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| @Override | ||
| protected void markConsumedMessage() { | ||
| consumedMessagesCounter.add(1L, attributes); | ||
| } | ||
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| @Override | ||
| protected void markAcknowledgedMessage() { | ||
| acknowledgedMessagesCounter.add(1L, attributes); | ||
| } | ||
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| @Override | ||
| protected void markRejectedMessage() { | ||
| rejectedMessagesCounter.add(1L, attributes); | ||
| } | ||
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| @Override | ||
| protected void markMessagePublishAcknowledged() { | ||
| ackedPublishedMessagesCounter.add(1L, attributes); | ||
| } | ||
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| @Override | ||
| protected void markMessagePublishNotAcknowledged() { | ||
| nackedPublishedMessagesCounter.add(1L, attributes); | ||
| } | ||
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| @Override | ||
| protected void markPublishedMessageUnrouted() { | ||
| unroutedPublishedMessagesCounter.add(1L, attributes); | ||
| } | ||
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| public AtomicLong getConnections() { | ||
| return connections; | ||
| } | ||
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| public AtomicLong getChannels() { | ||
| return channels; | ||
| } | ||
| } |
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