content: /*
   * Copyright The OpenTelemetry Authors
   * SPDX-License-Identifier: Apache-2.0
   */
  
  package io.opentelemetry.javaagent.instrumentation.spring.actuator.v2_0;
  
  import static io.opentelemetry.javaagent.extension.matcher.AgentElementMatchers.hasClassesNamed;
  import static java.util.Collections.singletonList;
  
  import com.google.auto.service.AutoService;
  import io.opentelemetry.javaagent.extension.instrumentation.HelperResourceBuilder;
  import io.opentelemetry.javaagent.extension.instrumentation.InstrumentationModule;
  import io.opentelemetry.javaagent.extension.instrumentation.TypeInstrumentation;
  import io.opentelemetry.javaagent.extension.instrumentation.internal.ExperimentalInstrumentationModule;
  import io.opentelemetry.javaagent.extension.instrumentation.internal.injection.ClassInjector;
  import io.opentelemetry.javaagent.extension.instrumentation.internal.injection.InjectionMode;
  import io.opentelemetry.sdk.autoconfigure.spi.ConfigProperties;
  import java.util.List;
  import net.bytebuddy.matcher.ElementMatcher;
  
  @AutoService(InstrumentationModule.class)
  public class SpringBootActuatorInstrumentationModule extends InstrumentationModule
      implements ExperimentalInstrumentationModule {
  
    public SpringBootActuatorInstrumentationModule() {
      super(
          "spring-boot-actuator-autoconfigure",
          "spring-boot-actuator-autoconfigure-2.0",
          // share the instrumentation name with MicrometerInstrumentationModule to lessen the users'
          // confusion
          "micrometer");
    }
  
    @Override
    public ElementMatcher.Junction<ClassLoader> classLoaderMatcher() {
      // added in micrometer-core 1.5
      return hasClassesNamed("io.micrometer.core.instrument.config.validate.Validated");
    }
  
    @Override
    public void registerHelperResources(HelperResourceBuilder helperResourceBuilder) {
      // autoconfigure classes are loaded as resources using ClassPathResource
      // this line will make OpenTelemetryMeterRegistryAutoConfiguration available to all
      // classloaders, so that the bean class loader (different from the instrumented class loader)
      // can load it
      if (!isIndyModule()) {
        // For indy module the proxy-bytecode will be injected as resource by injectClasses()
        helperResourceBuilder.registerForAllClassLoaders(
            "io/opentelemetry/javaagent/instrumentation/spring/actuator/v2_0/OpenTelemetryMeterRegistryAutoConfiguration.class");
      }
    }
  
    @Override
    public void injectClasses(ClassInjector injector) {
      injector
          .proxyBuilder(
              "io.opentelemetry.javaagent.instrumentation.spring.actuator.v2_0.OpenTelemetryMeterRegistryAutoConfiguration")
          .inject(InjectionMode.CLASS_AND_RESOURCE);
    }
  
    @Override
    public List<TypeInstrumentation> typeInstrumentations() {
      return singletonList(new AutoConfigurationImportSelectorInstrumentation());
    }
  
    @Override
    public boolean defaultEnabled(ConfigProperties config) {
      // produces a lot of metrics that are already captured - e.g. JVM memory usage
      return false;
    }
  
    @Override
    public boolean isIndyReady() {
      return true;
    }
  }
  