content: /*
   * Copyright The OpenTelemetry Authors
   * SPDX-License-Identifier: Apache-2.0
   */
  
  package io.opentelemetry.javaagent.instrumentation.vertx.v4_0.client;
  
  import static net.bytebuddy.matcher.ElementMatchers.named;
  import static net.bytebuddy.matcher.ElementMatchers.namedOneOf;
  import static net.bytebuddy.matcher.ElementMatchers.takesArgument;
  
  import io.opentelemetry.javaagent.extension.instrumentation.TypeInstrumentation;
  import io.opentelemetry.javaagent.extension.instrumentation.TypeTransformer;
  import io.vertx.core.Handler;
  import net.bytebuddy.asm.Advice;
  import net.bytebuddy.description.type.TypeDescription;
  import net.bytebuddy.matcher.ElementMatcher;
  
  /** Propagate context to connection established callback. */
  public class ConnectionManagerInstrumentation implements TypeInstrumentation {
  
    @Override
    public ElementMatcher<TypeDescription> typeMatcher() {
      return namedOneOf(
          "io.vertx.core.net.impl.clientconnection.ConnectionManager", // 4.0.0
          "io.vertx.core.net.impl.pool.ConnectionManager"); // 4.1.0
    }
  
    @Override
    public void transform(TypeTransformer transformer) {
      transformer.applyAdviceToMethod(
          named("getConnection").and(takesArgument(2, named("io.vertx.core.Handler"))),
          ConnectionManagerInstrumentation.class.getName() + "$GetConnectionArg2Advice");
      transformer.applyAdviceToMethod(
          named("getConnection").and(takesArgument(3, named("io.vertx.core.Handler"))),
          ConnectionManagerInstrumentation.class.getName() + "$GetConnectionArg3Advice");
      // since 4.3.4
      transformer.applyAdviceToMethod(
          named("getConnection").and(takesArgument(4, named("io.vertx.core.Handler"))),
          ConnectionManagerInstrumentation.class.getName() + "$GetConnectionArg4Advice");
    }
  
    @SuppressWarnings("unused")
    public static class GetConnectionArg2Advice {
      @Advice.OnMethodEnter(suppress = Throwable.class)
      public static void wrapHandler(
          @Advice.Argument(value = 2, readOnly = false) Handler<?> handler) {
        handler = HandlerWrapper.wrap(handler);
      }
    }
  
    @SuppressWarnings("unused")
    public static class GetConnectionArg3Advice {
      @Advice.OnMethodEnter(suppress = Throwable.class)
      public static void wrapHandler(
          @Advice.Argument(value = 3, readOnly = false) Handler<?> handler) {
        handler = HandlerWrapper.wrap(handler);
      }
    }
  
    @SuppressWarnings("unused")
    public static class GetConnectionArg4Advice {
      @Advice.OnMethodEnter(suppress = Throwable.class)
      public static void wrapHandler(
          @Advice.Argument(value = 4, readOnly = false) Handler<?> handler) {
        handler = HandlerWrapper.wrap(handler);
      }
    }
  }
  