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package org.msgpack.template

import org.msgpack.unpacker.Unpacker
import org.msgpack.packer.Packer
import java.lang.reflect.InvocationTargetException

/**
 *
 * User: takeshita
 * Create: 12/04/21 2:48
 */

class EnumerationTemplate( e : Class[Enumeration]) extends AbstractTemplate[Enumeration#Value]{
  def write(pk: Packer, v: Enumeration#Value, required: Boolean) {
    pk.write(v.id)
  }

  def read(u: Unpacker, to: Enumeration#Value, required: Boolean): Enumeration#Value = {
    try{
      e.getMethod("apply",java.lang.Integer.TYPE).invoke(
        null,new java.lang.Integer(u.readInt())).asInstanceOf[Enumeration#Value]
    }catch{
      case e : InvocationTargetException => {
        e.getCause match{
          case noSuchElement : NoSuchElementException => {
            // if not exist value, return null
            null
          }
          case _ => throw e
        }
      }
    }
  }
}