@Override public void dnsEnd(Call call, String domainName, List<InetAddress> inetAddressList) {
      printEvent("dnsEnd");
    }

    @Override public void connectStart(
        Call call, InetSocketAddress inetSocketAddress, Proxy proxy) {
      printEvent("connectStart");
    }

    @Override public void secureConnectStart(Call call) {
      printEvent("secureConnectStart");
    }

    override fun closes(event: ConnectionEvent): Boolean = event is ConnectStart && call == event.call && route == event.route
  }

  data class ConnectEnd(
    override val timestampNs: Long,
    override val connection: Connection,
    val route: Route,
    val call: Call,
  ) : ConnectionEvent() {
    override fun closes(event: ConnectionEvent): Boolean = event is ConnectStart && call == event.call && route == event.route
  }

      .assertLogMatch(Regex("""proxySelectEnd: \[DIRECT]"""))
      .assertLogMatch(Regex("""dnsStart: ${url.host}"""))
      .assertLogMatch(Regex("""dnsEnd: \[.+]"""))
      .assertLogMatch(Regex("""connectStart: ${url.host}/.+ DIRECT"""))
      .assertLogMatch(Regex("""connectEnd: http/1.1"""))
      .assertLogMatch(
        Regex(

    domainName: String,
    inetAddressList: List<InetAddress>,
  ) = logEvent(DnsEnd(System.nanoTime(), call, domainName, inetAddressList))

  override fun connectStart(
    call: Call,
    inetSocketAddress: InetSocketAddress,
    proxy: Proxy,
  ) = logEvent(ConnectStart(System.nanoTime(), call, inetSocketAddress, proxy))

  override fun secureConnectStart(call: Call) = logEvent(SecureConnectStart(System.nanoTime(), call))

 */
@ExperimentalOkHttpApi
abstract class ConnectionListener {
  /**
   * Invoked as soon as a call causes a connection to be started.
   */
  open fun connectStart(
    route: Route,
    call: Call,
  ) {}

  /**
   * Invoked when a connection fails to be established.
   */
  open fun connectFailed(
    route: Route,
    call: Call,
    failure: IOException,

    domainName: String,
    inetAddressList: List<InetAddress>,
  ) {
    logWithTime("dnsEnd: $inetAddressList")
  }

  override fun connectStart(
    call: Call,
    inetSocketAddress: InetSocketAddress,
    proxy: Proxy,
  ) {
    logWithTime("connectStart: $inetSocketAddress $proxy")
  }

  override fun secureConnectStart(call: Call) {
    logWithTime("secureConnectStart")
  }

    @Override public void dnsEnd(Call call, String domainName, List<InetAddress> inetAddressList) {
      printEvent("dnsEnd");
    }

    @Override public void connectStart(
        Call call, InetSocketAddress inetSocketAddress, Proxy proxy) {
      printEvent("connectStart");
    }

    @Override public void secureConnectStart(Call call) {
      printEvent("secureConnectStart");
    }

 * Events are typically nested with this structure:
 *
 *  * call ([callStart], [callEnd], [callFailed])
 *    * proxy selection ([proxySelectStart], [proxySelectEnd])
 *    * dns ([dnsStart], [dnsEnd])
 *    * connect ([connectStart], [connectEnd], [connectFailed])
 *      * secure connect ([secureConnectStart], [secureConnectEnd])
 *    * connection held ([connectionAcquired], [connectionReleased])
 *      * request ([requestFailed])

 */
interface ConnectionUser {
  fun addPlanToCancel(connectPlan: ConnectPlan)

  fun removePlanToCancel(connectPlan: ConnectPlan)

  fun updateRouteDatabaseAfterSuccess(route: Route)

  fun connectStart(route: Route)

  fun secureConnectStart()

  fun secureConnectEnd(handshake: Handshake?)

  fun callConnectEnd(
    route: Route,
    protocol: Protocol?,
  )

  fun connectionConnectEnd(

  }

  override fun removePlanToCancel(connectPlan: ConnectPlan) {
  }

  override fun updateRouteDatabaseAfterSuccess(route: Route) {
  }

  override fun connectStart(route: Route) {
  }

  override fun secureConnectStart() {
  }

  override fun secureConnectEnd(handshake: Handshake?) {
  }

  override fun callConnectEnd(
    route: Route,