content: /*
   * Copyright The OpenTelemetry Authors
   * SPDX-License-Identifier: Apache-2.0
   */
  
  package io.opentelemetry.javaagent.instrumentation.executors;
  
  import static io.opentelemetry.javaagent.instrumentation.executors.ExecutorMatchers.executorNameMatcher;
  import static io.opentelemetry.javaagent.instrumentation.executors.ExecutorMatchers.isThreadPoolExecutor;
  import static net.bytebuddy.matcher.ElementMatchers.named;
  import static net.bytebuddy.matcher.ElementMatchers.takesArgument;
  
  import io.opentelemetry.javaagent.bootstrap.executors.ContextPropagatingRunnable;
  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;
  
  public class ThreadPoolExtendingExecutorInstrumentation implements TypeInstrumentation {
  
    @Override
    public ElementMatcher<TypeDescription> typeMatcher() {
      return executorNameMatcher().and(isThreadPoolExecutor());
    }
  
    @Override
    public void transform(TypeTransformer transformer) {
      transformer.applyAdviceToMethod(
          named("beforeExecute").and(takesArgument(1, Runnable.class)),
          this.getClass().getName() + "$BeforeExecuteAdvice");
      transformer.applyAdviceToMethod(
          named("afterExecute").and(takesArgument(0, Runnable.class)),
          this.getClass().getName() + "$AfterExecuteAdvice");
    }
  
    @SuppressWarnings("unused")
    public static class BeforeExecuteAdvice {
  
      @Advice.OnMethodEnter(suppress = Throwable.class)
      public static void onEnter(@Advice.Argument(value = 1, readOnly = false) Runnable runnable) {
        if (runnable instanceof ContextPropagatingRunnable) {
          runnable = ((ContextPropagatingRunnable) runnable).unwrap();
        }
      }
    }
  
    @SuppressWarnings("unused")
    public static class AfterExecuteAdvice {
  
      @Advice.OnMethodEnter(suppress = Throwable.class)
      public static void onEnter(@Advice.Argument(value = 0, readOnly = false) Runnable runnable) {
        if (runnable instanceof ContextPropagatingRunnable) {
          runnable = ((ContextPropagatingRunnable) runnable).unwrap();
        }
      }
    }
  }
  