io.opentelemetry.javaagent.instrumentation.kafkaclients.v0_11.metrics.KafkaMetricsUtil Maven / Gradle / Ivy

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Instrumentation of Java libraries using OpenTelemetry.

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/*
 * Copyright The OpenTelemetry Authors
 * SPDX-License-Identifier: Apache-2.0
 */

package io.opentelemetry.javaagent.instrumentation.kafkaclients.v0_11.metrics;

import io.opentelemetry.api.GlobalOpenTelemetry;
import io.opentelemetry.instrumentation.kafka.internal.MetricsReporterList;
import io.opentelemetry.instrumentation.kafka.internal.OpenTelemetryMetricsReporter;
import io.opentelemetry.instrumentation.kafka.internal.OpenTelemetrySupplier;
import io.opentelemetry.javaagent.bootstrap.internal.AgentInstrumentationConfig;
import io.opentelemetry.javaagent.bootstrap.internal.DeprecatedConfigProperties;
import java.util.List;
import java.util.Map;
import org.apache.kafka.clients.CommonClientConfigs;

public final class KafkaMetricsUtil {
  private static final String INSTRUMENTATION_NAME = "io.opentelemetry.kafka-clients-0.11";
  private static final boolean METRICS_ENABLED =
      DeprecatedConfigProperties.getBoolean(
          AgentInstrumentationConfig.get(),
          "otel.instrumentation.kafka.metric-reporter.enabled",
          "otel.instrumentation.kafka-clients-metrics.enabled",
          true);

  @SuppressWarnings("unchecked")
  public static void enhanceConfig(Map config) {
    // skip enhancing configuration when metrics are disabled or when we have already enhanced it
    if (!METRICS_ENABLED
        || config.get(OpenTelemetryMetricsReporter.CONFIG_KEY_OPENTELEMETRY_INSTRUMENTATION_NAME)
            != null) {
      return;
    }
    config.merge(
        CommonClientConfigs.METRIC_REPORTER_CLASSES_CONFIG,
        MetricsReporterList.singletonList(OpenTelemetryMetricsReporter.class),
        (class1, class2) -> {
          // class1 is either a class name or List of class names or classes
          if (class1 instanceof List) {
            List