Object

play.api.libs

Comet

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object Comet

Helper function to produce a Comet using Akka Streams.

Please see https://en.wikipedia.org/wiki/Comet_(programming) for details of Comet.

Example:

def streamClock() = Action {
  val df: DateTimeFormatter = DateTimeFormatter.ofPattern("HH mm ss")
  val tickSource = Source.tick(0 millis, 100 millis, "TICK")
  val source = tickSource.map((tick) => df.format(ZonedDateTime.now()))
  Ok.chunked(source via Comet.flow("parent.clockChanged"))
}
Source
Comet.scala
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  1. final def !=(arg0: Any): Boolean

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  2. final def ##(): Int

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  3. final def ==(arg0: Any): Boolean

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  4. final def asInstanceOf[T0]: T0

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  5. def clone(): AnyRef

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  6. final def eq(arg0: AnyRef): Boolean

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  7. def equals(arg0: Any): Boolean

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  8. def finalize(): Unit

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  9. def flow(callbackName: String, initialChunk: ByteString = initialByteString): Flow[ByteString, ByteString, NotUsed]

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    Creates a flow of ByteString.

    Creates a flow of ByteString. Useful when you have objects that are not JSON or String where you may have to do your own conversion.

    Usage example:

    val htmlStream: Source[ByteString, ByteString, NotUsed] = Flow[Html].map { html =>
      ByteString.fromString(html.toString())
    }
    ...
    Ok.chunked(htmlStream via Comet.flow("parent.clockChanged"))
  10. final def getClass(): Class[_]

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  11. def hashCode(): Int

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  12. val initialByteString: ByteString

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  13. val initialHtmlChunk: Html

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  14. final def isInstanceOf[T0]: Boolean

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  15. def json(callbackName: String): Flow[JsValue, ByteString, NotUsed]

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    Produces a flow of ByteString using Json.fromJson(_).get from a Flow of JsValue.

    Produces a flow of ByteString using Json.fromJson(_).get from a Flow of JsValue. Calls out to Comet.flow internally.

    callbackName

    the javascript callback method.

    returns

    a flow of ByteString elements.

  16. final def ne(arg0: AnyRef): Boolean

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  17. final def notify(): Unit

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  18. final def notifyAll(): Unit

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  19. def string(callbackName: String): Flow[String, ByteString, NotUsed]

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    Produces a Flow of escaped ByteString from a series of String elements.

    Produces a Flow of escaped ByteString from a series of String elements. Calls out to Comet.flow internally.

    callbackName

    the javascript callback method.

    returns

    a flow of ByteString elements.

  20. final def synchronized[T0](arg0: ⇒ T0): T0

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  21. def toString(): String

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  22. final def wait(): Unit

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  23. final def wait(arg0: Long, arg1: Int): Unit

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  24. final def wait(arg0: Long): Unit

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