content: /*
   * Copyright The OpenTelemetry Authors
   * SPDX-License-Identifier: Apache-2.0
   */
  
  package io.opentelemetry.javaagent.instrumentation.r2dbc.v1_0;
  
  import static net.bytebuddy.matcher.ElementMatchers.isMethod;
  import static net.bytebuddy.matcher.ElementMatchers.named;
  import static net.bytebuddy.matcher.ElementMatchers.takesArgument;
  import static net.bytebuddy.matcher.ElementMatchers.takesArguments;
  
  import io.opentelemetry.javaagent.extension.instrumentation.TypeInstrumentation;
  import io.opentelemetry.javaagent.extension.instrumentation.TypeTransformer;
  import io.r2dbc.spi.ConnectionFactory;
  import io.r2dbc.spi.ConnectionFactoryOptions;
  import net.bytebuddy.asm.Advice;
  import net.bytebuddy.description.type.TypeDescription;
  import net.bytebuddy.matcher.ElementMatcher;
  
  class R2dbcInstrumentation implements TypeInstrumentation {
  
    @Override
    public ElementMatcher<TypeDescription> typeMatcher() {
      return named("io.r2dbc.spi.ConnectionFactories");
    }
  
    @Override
    public void transform(TypeTransformer transformer) {
      transformer.applyAdviceToMethod(
          isMethod()
              .and(named("find"))
              .and(takesArguments(1))
              .and(takesArgument(0, named("io.r2dbc.spi.ConnectionFactoryOptions"))),
          this.getClass().getName() + "$FactoryAdvice");
    }
  
    @SuppressWarnings("unused")
    public static class FactoryAdvice {
  
      @Advice.OnMethodExit(suppress = Throwable.class)
      public static void methodExit(
          @Advice.Return(readOnly = false) ConnectionFactory factory,
          @Advice.Argument(0) ConnectionFactoryOptions factoryOptions) {
  
        if (factory != null) {
          factory = R2dbcSingletons.telemetry().wrapConnectionFactory(factory, factoryOptions);
        }
      }
    }
  }
  