json4s opt methods

JsonUtils.scala

import org.json4s._


object JsonUtils {

  implicit class AugmentJValue(val jvalue: JValue) {

    implicit val formats = DefaultFormats

    def getString(key: String): String = {
      Option((jvalue \ key).extract[String]).get
    }

    def optString(key: String, default: String = ""): String = {
      try {
        getString(key)
      } catch {
        case _: Exception => default
      }
    }

    def getInt(key: String): Int = {
      (jvalue \ key).extractOpt[Int] match {
        case Some(result) => result
        case None => (jvalue \ key).extract[String].toInt
      }
    }

    def optInt(key: String, default: Int = 0): Int = {
      try {
        getInt(key)
      } catch {
        case _: Exception => default
      }
    }

    def getLong(key: String): Long = {
      (jvalue \ key).extractOpt[Long] match {
        case Some(result) => result
        case None => (jvalue \ key).extract[String].toLong
      }
    }

    def optLong(key: String, default: Long = 0): Long = {
      try {
        getLong(key)
      } catch {
        case _: Exception => default
      }
    }

  }

}