raboof

implicit class PimpMyMap[A,B](map: Map[A,B]) {
  def mapValue(a: A, f: B =>B) = map.map {
    case (`a`, b) => (a, f(b))
    case other => other
  }
}

raboof

import akka.actor.ActorPath

trait AtLeastOnceTransmission[A] extends akka.persistence.AtLeastOnceDelivery {
  private var unconfirmed = Map[A, Set[Long]]()

  def transmit(destination: ActorPath, transmissionId: A, message: Any): Unit = {
    deliver(destination, { deliveryId ⇒
      unconfirmed = add(unconfirmed, transmissionId, deliveryId)
      message
    })

raboof

  def addItem(newItem: BasketItem): BasketState = {
    copy(
      items.foldRight((false, List.empty[BasketItem])) {
        case (item, (_, out)) if (item.matchesProductAndSizeOf(newItem)) ⇒ (true, item.incrementNumberBy(newItem.numberOfProducts) :: out)
        case (item, (didSomethingMatch, out))                            ⇒ (didSomethingMatch, item :: out)
      } match {
        case (false, _)            ⇒ newItem :: items
        case (true, modifiedItems) ⇒ modifiedItems
      }
    )

raboof

Keybase proof

I hereby claim:

• I am raboof on github.
• I am raboof (https://keybase.io/raboof) on keybase.
• I have a public key whose fingerprint is B354 2F13 5550 0168 DD4F F2FA 1431 BC1D 5327 EB56

To claim this, I am signing this object: