JSON string -> ? -> Smile

gistfile1.scala

import com.fasterxml.jackson.core.JsonFactory
import com.fasterxml.jackson.databind.ObjectMapper
import com.fasterxml.jackson.databind.util.TokenBuffer
import com.fasterxml.jackson.dataformat.smile.SmileFactory

object SmileDemo {
  val JSON_FACTORY: JsonFactory = new JsonFactory()
  val SMILE_FACTORY: SmileFactory = new SmileFactory()

  val JSON = new ObjectMapper(JSON_FACTORY)
  val SMILE = new ObjectMapper(SMILE_FACTORY)

  def stringToSmileThroughTree(s: String): Array[Byte] = {
    SMILE.writeValueAsBytes(JSON.readTree(s))
  }

  def stringToSmileThroughBuffer(s: String): Array[Byte] = {
    val p = JSON_FACTORY.createParser(s)
    SMILE.writeValueAsBytes(p.readValueAs(classOf[TokenBuffer]))
  }

  def main(args: Array[String]): Unit = {
    convert(stringToSmileThroughTree)
    println()
    convert(stringToSmileThroughBuffer)
  }

  def convert(fun: (String) => Array[Byte]): Unit = {
    val someData = """{"abc": "def", "ghi": 129, "jkl": null}"""
    val bytes = fun(someData)
    println(bytes.length + " bytes")

    var i: Integer = 0
    for (b <- bytes) {
      print("%02X".format(b))
      i += 1
      print(if (i % 16 == 0) "\n" else " ")
    }
    println()
  }
}