Nice ParaNameReader for the Play! Framework v.1.2.2

PlayParameterReader.scala

package PlayParameterReader

/**
 * @author Jay Taylor <outtatime@gmail.com>
 *
 * @date 2011-05-23
 */

import scala.collection.JavaConversions._

import java.lang.reflect.Constructor
import java.sql.Timestamp
import java.text.SimpleDateFormat

import play.classloading.enhancers.LocalvariablesNamesEnhancer

import net.liftweb.json._
import net.liftweb.json.JsonAST
import net.liftweb.json.JsonDSL._


object PlayParameterNameReader extends ParameterNameReader {
    def lookupParameterNames(constructor: Constructor[_]) =
        LocalvariablesNamesEnhancer.lookupParameterNames(constructor)
}


class TimestampSerializer extends Serializer[Timestamp] {

    private val TimestampClass = classOf[Timestamp]

    def deserialize(implicit format: Formats):
        PartialFunction[(TypeInfo, JValue), Timestamp] = {
        case (TypeInfo(TimestampClass, _), json) => json match {
            case JString(s) => new Timestamp((new SimpleDateFormat).parse(s).getTime)
            case x => throw new MappingException("Can't convert " + x + " to Timestamp")
        }
    }

    def serialize(implicit format: Formats): PartialFunction[Any, JValue] = {
        case x: Timestamp => JString((new SimpleDateFormat).format(x))
    }
}


object Formats {
    implicit val formats = new DefaultFormats {
        override val parameterNameReader = PlayParameterNameReader
    } + (new TimestampSerializer)
}