ENH: Add Context.jsonStream(...) to write x-json-stream content from Stream<E> or Iterator<E>

[rbygrave]

  /**
   * Write the stream as a JSON stream with new line delimiters
   * {@literal application/x-json-stream}.
   *
   * @param stream The stream of beans to write as json
   */
  <E> Context jsonStream(Stream<E> stream);

  /**
   * Write the stream as a JSON stream with new line delimiters
   * {@literal application/x-json-stream}.
   *
   * @param iterator The iterator of beans to write as json
   */
  <E> Context jsonStream(Iterator<E> iterator);

Note that when using Iterator internally it will check if the instance implements AutoCloseable and if so will close the iterator when all elements have been written. Stream implements AutoCloseable so that also gets closed.

[rbygrave]

FYI @tipsy ... pretty sure you saw this but just in case. Right now I don't quite have time at the moment to prepare a PR for Javalin for this but let me know and tag me on a issue if/when we create one in Javalin.

Cheers, Rob.

[tipsy]

@rbygrave It's a nice feature, I'll create an issue :)