content: /*
   * Copyright The OpenTelemetry Authors
   * SPDX-License-Identifier: Apache-2.0
   */
  
  package io.opentelemetry.javaagent.instrumentation.graphql.v12_0;
  
  import static io.opentelemetry.javaagent.instrumentation.graphql.v12_0.GraphqlSingletons.addInstrumentation;
  import static net.bytebuddy.matcher.ElementMatchers.named;
  import static net.bytebuddy.matcher.ElementMatchers.namedOneOf;
  import static net.bytebuddy.matcher.ElementMatchers.returns;
  
  import graphql.execution.instrumentation.Instrumentation;
  import io.opentelemetry.javaagent.extension.instrumentation.TypeInstrumentation;
  import io.opentelemetry.javaagent.extension.instrumentation.TypeTransformer;
  import net.bytebuddy.asm.Advice;
  import net.bytebuddy.description.type.TypeDescription;
  import net.bytebuddy.matcher.ElementMatcher;
  
  class GraphqlInstrumentation implements TypeInstrumentation {
  
    @Override
    public ElementMatcher<TypeDescription> typeMatcher() {
      return named("graphql.GraphQL");
    }
  
    @Override
    public void transform(TypeTransformer transformer) {
      transformer.applyAdviceToMethod(
          namedOneOf("checkInstrumentationDefaultState", "checkInstrumentation")
              .and(returns(named("graphql.execution.instrumentation.Instrumentation"))),
          this.getClass().getName() + "$AddInstrumentationAdvice");
    }
  
    @SuppressWarnings("unused")
    public static class AddInstrumentationAdvice {
      @Advice.OnMethodExit(suppress = Throwable.class)
      public static void onExit(@Advice.Return(readOnly = false) Instrumentation instrumentation) {
        instrumentation = addInstrumentation(instrumentation);
      }
    }
  }
  