How to receive infinite chunked data in okhttp - okhttp

Question

I have a Http server. When client send a http request to the server, the server side will hold the http connection and send chunked string infinite to the client. I know it will be better using websocket in today, but it is a old project, and I can't change the server side code.
// server.kt
package com.example.long_http
import io.vertx.core.AbstractVerticle
import io.vertx.core.Promise
import io.vertx.core.Vertx
class MainVerticle : AbstractVerticle() {
override fun start(startPromise: Promise<Void>) {
vertx
.createHttpServer()
.requestHandler { req ->
var i = 0
req.response().setChunked(true).putHeader("Content-Type", "text/plain")
val timer = vertx.setPeriodic(2000) {
req.response().write("hello ${System.currentTimeMillis()}")
println("write ${System.currentTimeMillis()}")
}
req.response().closeHandler {
vertx.cancelTimer(timer)
println("close")
}
}
.listen(8888) { http ->
if (http.succeeded()) {
startPromise.complete()
println("HTTP server started on port 8888")
} else {
startPromise.fail(http.cause());
}
}
}
}
fun main() {
Vertx.vertx().deployVerticle(MainVerticle())
}
I try to receive chunked string using okhttp, but it dont work.
// client.kt
package com.example.long_http
import okhttp3.*
import java.io.IOException
fun main() {
val client = OkHttpClient()
val request = Request.Builder().url("http://localhost:8888").build()
client.newCall(request).enqueue(handler())
}
class handler : Callback {
override fun onFailure(call: Call, e: IOException) {
e.printStackTrace()
}
override fun onResponse(call: Call, response: Response) {
println("onResponse")
val stream = response.body!!.byteStream().bufferedReader()
while (true) {
var line = stream.readLine()
println(line)
}
}
}