Jerkson custom serializer/deserializer

gistfile1.scala

import com.codahale.jerkson.Json
import org.codehaus.jackson.map.module.SimpleModule
import org.codehaus.jackson.{JsonParser, JsonGenerator, Version}
import org.codehaus.jackson.map.annotate.JsonCachable
import org.codehaus.jackson.map.{DeserializationContext, JsonDeserializer, SerializerProvider, JsonSerializer}

object CustomJson extends Json {
  val module = new SimpleModule("CustomJson", Version.unknownVersion())
  // --- (SERIALIZERS) ---
  module.addSerializer(classOf[Enumeration#Value], new JerksonEnumerationSerializer())
  // --- (DESERIALIZERS) ---
  module.addDeserializer(classOf[UserType], new JerksonEnumerationDeserializer[UserType](UserTypes))

  mapper.registerModule(module)
}

@JsonCachable
class JerksonEnumerationSerializer extends JsonSerializer[Enumeration#Value] {
  override def serialize(id: Enumeration#Value, json: JsonGenerator, provider: SerializerProvider) {
    json.writeString(id.toString)
  }
}

@JsonCachable
class JerksonEnumerationDeserializer[T <: Enumeration#Value](enum: Enumeration) extends JsonDeserializer[T] {
  override def deserialize(jp: JsonParser, context: DeserializationContext): T = {
    return fetchEnumValue(jp.getText)
  }
  private def fetchEnumValue(value: String): T = {
    enum.values.find(_.toString == value).getOrElse(throw new Exception("Invalid enum value => " + value)).asInstanceOf[T]
  }
}