import okhttp3.CallEvent.ProxySelectStart
import okhttp3.CallEvent.RequestBodyStart
import okhttp3.CallEvent.RequestFailed
import okhttp3.CallEvent.RequestHeadersEnd
import okhttp3.CallEvent.RequestHeadersStart
import okhttp3.CallEvent.ResponseBodyEnd
import okhttp3.CallEvent.ResponseBodyStart
import okhttp3.CallEvent.ResponseHeadersEnd
import okhttp3.CallEvent.ResponseHeadersStart
import okhttp3.CallEvent.SecureConnectEnd

   * [Call.request] is a redirect to a different address.
   */
  open fun requestHeadersStart(call: Call) {
  }

  /**
   * Invoked immediately after sending request headers.
   *
   * This method is always invoked after [requestHeadersStart].
   *
   * @param request the request sent over the network. It is an error to access the body of this
   *     request.
   */

      ConnectEnd::class,
      ConnectionAcquired::class,
      RequestHeadersStart::class,
      RequestHeadersEnd::class,
      RequestBodyStart::class,
      ResponseHeadersStart::class,
      ResponseHeadersEnd::class,
      ResponseBodyStart::class,
      ResponseBodyEnd::class,
      FollowUpDecision::class,
      RequestHeadersStart::class,
      RequestHeadersEnd::class,
      ResponseHeadersStart::class,

import okhttp3.CallEvent.DnsStart
import okhttp3.CallEvent.FollowUpDecision
import okhttp3.CallEvent.ProxySelectEnd
import okhttp3.CallEvent.ProxySelectStart
import okhttp3.CallEvent.RequestHeadersEnd
import okhttp3.CallEvent.RequestHeadersStart
import okhttp3.CallEvent.ResponseBodyEnd
import okhttp3.CallEvent.ResponseBodyStart
import okhttp3.CallEvent.ResponseHeadersEnd
import okhttp3.CallEvent.ResponseHeadersStart
import okhttp3.CallEvent.SecureConnectEnd

    // Observed Events are variable
    // JDK 14
    // CallStart, ProxySelectStart, ProxySelectEnd, DnsStart, DnsEnd, ConnectStart, SecureConnectStart,
    // SecureConnectEnd, ConnectEnd, ConnectionAcquired, RequestHeadersStart, RequestHeadersEnd,
    // ResponseFailed, ConnectionReleased, CallFailed
    // JDK 8
    // CallStart, ProxySelectStart, ProxySelectEnd, DnsStart, DnsEnd, ConnectStart, SecureConnectStart,

    get() = finder.routePlanner.address.url.host != codec.carrier.route.address.url.host

  @Throws(IOException::class)
  fun writeRequestHeaders(request: Request) {
    try {
      call.eventListener.requestHeadersStart(call)
      codec.writeRequestHeaders(request)
      call.eventListener.requestHeadersEnd(call, request)
    } catch (e: IOException) {
      call.eventListener.requestFailed(call, e)
      trackFailure(e)