content: /*
   * Copyright The OpenTelemetry Authors
   * SPDX-License-Identifier: Apache-2.0
   */
  
  package io.opentelemetry.javaagent.instrumentation.grizzly;
  
  import static io.opentelemetry.javaagent.instrumentation.grizzly.GrizzlySingletons.instrumenter;
  import static net.bytebuddy.matcher.ElementMatchers.isMethod;
  import static net.bytebuddy.matcher.ElementMatchers.isPrivate;
  import static net.bytebuddy.matcher.ElementMatchers.named;
  import static net.bytebuddy.matcher.ElementMatchers.takesArgument;
  
  import io.opentelemetry.context.Context;
  import io.opentelemetry.javaagent.bootstrap.servlet.AppServerBridge;
  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;
  import org.glassfish.grizzly.filterchain.FilterChainContext;
  import org.glassfish.grizzly.http.HttpRequestPacket;
  
  public class DefaultFilterChainInstrumentation implements TypeInstrumentation {
  
    @Override
    public ElementMatcher<TypeDescription> typeMatcher() {
      return named("org.glassfish.grizzly.filterchain.DefaultFilterChain");
    }
  
    @Override
    public void transform(TypeTransformer transformer) {
      transformer.applyAdviceToMethod(
          isMethod()
              .and(isPrivate())
              .and(named("notifyFailure"))
              .and(takesArgument(0, named("org.glassfish.grizzly.filterchain.FilterChainContext")))
              .and(takesArgument(1, Throwable.class)),
          DefaultFilterChainInstrumentation.class.getName() + "$NotifyFailureAdvice");
    }
  
    @SuppressWarnings("unused")
    public static class NotifyFailureAdvice {
  
      @Advice.OnMethodEnter(suppress = Throwable.class)
      public static void onFail(
          @Advice.Argument(0) FilterChainContext ctx, @Advice.Argument(1) Throwable throwable) {
        Context context = GrizzlyStateStorage.removeContext(ctx);
        HttpRequestPacket request = GrizzlyStateStorage.removeRequest(ctx);
        if (context != null && request != null) {
          Throwable error = GrizzlyErrorHolder.getOrDefault(context, throwable);
          if (error == null) {
            error = AppServerBridge.getException(context);
          }
          instrumenter().end(context, request, null, error);
        }
      }
    }
  }
  