content: /*
   * Copyright The OpenTelemetry Authors
   * SPDX-License-Identifier: Apache-2.0
   */
  
  package io.opentelemetry.javaagent.instrumentation.sparkjava;
  
  import static net.bytebuddy.matcher.ElementMatchers.isPublic;
  import static net.bytebuddy.matcher.ElementMatchers.named;
  import static net.bytebuddy.matcher.ElementMatchers.returns;
  import static net.bytebuddy.matcher.ElementMatchers.takesArgument;
  
  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 spark.routematch.RouteMatch;
  
  public class RoutesInstrumentation implements TypeInstrumentation {
    @Override
    public ElementMatcher<TypeDescription> typeMatcher() {
      return named("spark.route.Routes");
    }
  
    @Override
    public void transform(TypeTransformer transformer) {
      transformer.applyAdviceToMethod(
          named("find")
              .and(takesArgument(0, named("spark.route.HttpMethod")))
              .and(returns(named("spark.routematch.RouteMatch")))
              .and(isPublic()),
          this.getClass().getName() + "$FindAdvice");
    }
  
    @SuppressWarnings("unused")
    public static class FindAdvice {
  
      @Advice.OnMethodExit(suppress = Throwable.class)
      public static void routeMatchEnricher(@Advice.Return RouteMatch routeMatch) {
        SparkRouteUpdater.updateHttpRoute(routeMatch);
      }
    }
  }
  