Encode/Decode Ascii->Binary->Base64 in Scala

base64_binary_to_ascii_enc_dec.scala

// Multistep encoding of ascii to binary->base64
// As the binary will be presented as blocks of 0,1 separated by space. 
// The base64 result will contain patterns such as MTA, MCA, IDE.

val message = "Hello World !"

def encode(message: String): String =
  java.util.Base64.getEncoder().encodeToString( message.map(_.toBinaryString).mkString(" ").map(_.toByte).toArray )

def decode(base64: String): String =
  new String( java.util.Base64.getDecoder.decode(base64)).split(" ").map(b => Integer.parseInt(b,2).toChar).mkString

val base64 = encode(message)
println(s"Encoded as base64: $base64")
// Encoded as base64: MTAwMTAwMCAxMTAwMTAxIDExMDExMDAgMTEwMTEwMCAxMTAxMTExIDEwMDAwMCAxMDEwMTExIDExMDExMTEgMTExMDAxMCAxMTAxMTAwIDExMDAxMDAgMTAwMDAwIDEwMDAwMQ==
println(s"Decoded ${decode(base64)}")
// Decoded Hello World !