Option B: Non Blocking API

gistfile1.txt

Option B: Non Blocking API

Stormpath Wrapper Service
-------------------------

class NonBlockingExecution(implicit executionContext: ExecutionContext) {

  def doAsync[S]( func: () => S) : Future[S] =  {

    val promise = Promise[S]
    promise.success(func())
    promise.future

  }
}


Client using the Wrapper
------------------------

object Main {

  var applicationRestUrl : String = "https://api.stormpath.com/v1/applications/sTwbyZ1qo74eDM4gTo2H93"

  var path : String = System.getProperty("user.home") + "/.stormpath/apiKey.properties"

  var client : Client = new ClientBuilder().setApiKeyFileLocation(path).build()

  var application : Application = client.getResource(applicationRestUrl, classOf[Application])

  def main(args: Array[String]) {

    val authenticationResult : AuthenticationResult = application.authenticateAccount(new UsernamePasswordRequest("[email protected]", "XXX", null))
    val account : Account = authenticationResult.getAccount()

    val maxBlockingBacklog: Int = 100

    val service = new ThreadPoolExecutor(32, /* corePoolSize */
      64, /* maximumPoolSize */
      120L, TimeUnit.SECONDS, /* keepAliveTime */
      new ArrayBlockingQueue[Runnable](
        maxBlockingBacklog,
        false /* we don't care about FIFO */
      ), /* workQueue */
      Executors.defaultThreadFactory())

    // allow the pool to shrink below corePoolSize after keepAliveTime
    service.allowCoreThreadTimeOut(true)

    implicit val executionContext = ExecutionContext.fromExecutorService(service)

    val execution : NonBlockingExecution = new NonBlockingExecution()(executionContext)

    val future : Future[GroupList] = execution.doAsync(
      () => account.getGroups
    )

    future onSuccess {
      case groupList => groupList.foreach(println(_))
    }

    executionContext.shutdown()

  }

}