content: /*
   * Copyright The OpenTelemetry Authors
   * SPDX-License-Identifier: Apache-2.0
   */
  
  package io.opentelemetry.javaagent.instrumentation.graphql.v20_0;
  
  import static io.opentelemetry.javaagent.extension.matcher.AgentElementMatchers.hasClassesNamed;
  
  import com.google.auto.service.AutoService;
  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 java.util.Collections;
  import java.util.List;
  import net.bytebuddy.matcher.ElementMatcher;
  
  @SuppressWarnings("unused")
  @AutoService(InstrumentationModule.class)
  public class GraphqlInstrumentationModule extends InstrumentationModule
      implements ExperimentalInstrumentationModule {
  
    public GraphqlInstrumentationModule() {
      super("graphql-java", "graphql-java-20.0");
    }
  
    @Override
    public ElementMatcher.Junction<ClassLoader> classLoaderMatcher() {
      // added in 20.0
      return hasClassesNamed("graphql.execution.instrumentation.SimplePerformantInstrumentation");
    }
  
    @Override
    public List<TypeInstrumentation> typeInstrumentations() {
      return Collections.singletonList(new GraphqlInstrumentation());
    }
  
    @Override
    public void injectClasses(ClassInjector injector) {
      // we do not use ByteBuddy Advice dispatching in this instrumentation
      // Instead, we manually call GraphqlSingletons via ASM
      // Easiest solution to work with indy is to inject an indy-proxy to be invoked
      injector
          .proxyBuilder("io.opentelemetry.javaagent.instrumentation.graphql.v20_0.GraphqlSingletons")
          .inject(InjectionMode.CLASS_ONLY);
    }
  }
  