Play serving stream from a sub-process stdout

gistfile1.scala

package controllers

import play.api._
import play.api.mvc._
import play.api.libs.iteratee._


import java.io._
import scala.io._
import scala.concurrent._
import scala.sys.process._

object Application extends Controller {

  def someAction = Action { request =>
    val someString = """
Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. 

Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. 

Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. 

Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum."""

    val data = new SyncVar[InputStream]

    val subProc = Process(Seq("cat", "<<<EOF")).run(
      new ProcessIO(
        cin => {
          cin.write(someString.getBytes)
          cin.close
        },
        cout => data.put(cout),
        cerr => ()
      ))
    Ok.stream(Enumerator.fromStream(data.get))
  }
}