tohenryliu

    def fib(n: Int): (Int, Int) = if (n==1) (1,1) else {
        val (m1,m2) = fib(n-1)
        (m2, m1+m2)
    }

tohenryliu

import scala.concurrent._
import scala.concurrent.duration._
object TimedFuture {
  def apply[T](body: ⇒ T)(timeout: Duration = 10.seconds)(implicit executor: ExecutionContext): Future[T] = {
    val start = System.currentTimeMillis()
    Future {
      val now = System.currentTimeMillis()
      if (now - start > timeout.toMillis) throw new Exception(s"timed out after $timeout")
      body
    }

tohenryliu

object Transactions {
  class Transactor(session: Session) extends BaseActor {
    /**
     * To be defined in child actors
     */
    override def handleMessage: Receive = ???

    def commit: Future[Unit] = ???
    def rollback:Future[Unit] = ???
    def execute[T](f: Session => T): Future[T] = ???

tohenryliu

object Battle {

  import scala.util.Try

  type cellType = String
  type Result = Try[Set[Boat]]
  val D = "D"
  val W = " "
  trait Boat {
    def start: Point

tohenryliu

  def test = {
    lazy val x = {
      println(s"lazy compute called")
      Thread.sleep(1000*30)
      1
    }
    x
  }
  def mRun = {
    import scala.concurrent.ExecutionContext.Implicits.global

tohenryliu

"
name,         com.patch.kickass.actions.EmailPreferenceActions$SetOptOut
parameters:   UserRef
param values: 1
"

"
output:
action name,  param types, return type, case class, implementation(needed to invoke the action)
"

tohenryliu

package versioning

// version 1 defined 2 actions here
trait V1 { 
 val SetOptOut = EmailPreferenceActions.SetOptOut
 val GetSailthruEmail = EmailPreferenceActions.GetSailthruEmail
}
object V1Api extends V1

// version 2 need to replace SetOptOut with SetOptOutImproved

tohenryliu

    for{
      u <- UserStore.getFull(requesterRef)
            // .map{usr=> if(false) notAuthorizedC("x") else usr}
            .map{usr=>UserRefs.ById(usr.id)}
      // _ <- if (u.status == Statuses.Active) success 
      //      else notAuthorizedC("Unable to retrieve the permissions for post: [%s] and requester: [%s]".format(postRef, requesterRef))
      r <- postRef match {
            case ref:PostRefs.ById => 
              getPermitedOperationsForPostsById(Set(ref), u)
                .map[ReaderCtx, Set[Operation]]{r=> r(ref)}