Groovyでオブジェクトをシリアライズしてバイト数とHexダンプを出力

SeriarizeAndDump.groovy

def obj = new Date()
try{
    serialize(obj)
}catch(e){
    println "Object is not Serializable"
}

def serialize(obj){
    def baos = new ByteArrayOutputStream()
    def oos = new ObjectOutputStream(baos)
    def width = 16
    oos.writeObject(obj)
    println "Serialized size[bytes]: " + baos.toByteArray().size()
    println "Hex dump:"
    println "-"*(width*3-1)
    baos.toByteArray().eachWithIndex{ b,i ->
      print Integer.toHexString(b & 0xff).padLeft(2, "0") + " "
      if (i % width == width-1) println ""
    }
    println ""
    println "-"*(width*3-1)
}