Scala TimeoutException类代码示例

//设置package包名称以及导入依赖的类
package net.cimadai.chatwork

import com.ning.http.client.Response
import dispatch.Defaults._
import dispatch._
import org.json4s._
import org.json4s.jackson.JsonMethods

import scala.concurrent.duration._
import scala.concurrent.{Await, TimeoutException}

trait HttpClient extends JsonMethods {

  object HTTP_METHOD extends Enumeration {
    val GET, POST, PUT, DELETE = Value
  }

  private val absoluteTimeout = 30.seconds
  protected val StatusCodeUndefined = -1
  implicit val formats = DefaultFormats

  private val http = new Http

  
  private def executeRequestAndAwait(uri: String, method: HTTP_METHOD.Value, params: Params): Option[Response] = {
    try {
      val req = url(uri).setMethod(method.toString).setParameters(params)

      if (method != HTTP_METHOD.GET) {
        req.addHeader("Content-Type", "application/x-www-form-urlencoded")
      }
      val res = Await.result(http(decorateRequest(req)), absoluteTimeout)
      Option(res)
    } catch {
      case e: TimeoutException =>
        None
    }
  }
} 

//设置package包名称以及导入依赖的类
package com.github.tkqubo.akka_open_graph_fetcher

import akka.http.scaladsl.model.StatusCodes
import akka.http.scaladsl.model.StatusCodes.ClientError
import org.specs2.mutable.Specification
import spray.json.DefaultJsonProtocol._
import spray.json._

import scala.concurrent.TimeoutException


// scalastyle:off magic.number
class ErrorTest extends Specification {
  "Error" should {
    val errorMessage: Option[String] = Some("error")
    "maybeFromStatusCode" should {
      "return None" in {
        Error.maybeFromStatusCode(StatusCodes.OK, errorMessage) === None
      }
      "return Error instance" in {
        val requestTimeout: ClientError = StatusCodes.RequestTimeout
        Error.maybeFromStatusCode(requestTimeout, errorMessage) === Some(Error(requestTimeout.intValue, errorMessage))
        Error.maybeFromStatusCode(requestTimeout) === Some(Error(requestTimeout.intValue))
      }
    }

    "fromThrowable" should {
      "return Error with 408 status code" in {
        Error.fromThrowable(new TimeoutException(), errorMessage) === Error(StatusCodes.RequestTimeout.intValue, errorMessage)
        Error.fromThrowable(new TimeoutException()) === Error(StatusCodes.RequestTimeout.intValue)
      }
      "return Error with 503 status code" in {
        Seq(new IllegalArgumentException, new RuntimeException, new OutOfMemoryError())
          .forall(Error.fromThrowable(_) == Error(StatusCodes.ServiceUnavailable.intValue))
      }
    }

    "rootJsonFormat" should {
      "pass" in {
        val error = Error(StatusCodes.BadRequest.intValue, errorMessage)
        val json =
          s"""
            |{
            |  "status_code": ${StatusCodes.BadRequest.intValue},
            |  "message": ${error.message.get.toJson}
            |}
          """.stripMargin.parseJson
        Error.rootJsonFormat.write(error).prettyPrint === json.prettyPrint
        Error.rootJsonFormat.read(json) === error
      }
    }
  }
} 

//设置package包名称以及导入依赖的类
package name.denyago.yasc

import akka.actor.{ActorSystem, Props}
import akka.stream.ActorMaterializer
import name.denyago.yasc.log.{Helper => LogHelper}

import scala.concurrent.duration._
import scala.concurrent.{Await, TimeoutException}
import scala.util.Try


class Main(args: Array[String]) extends LogHelper {

  implicit val system = ActorSystem("yasc-server")
  implicit val materializer = ActorMaterializer()

  def run(): Unit = {
    log.info(s"Statring the App: Starting the Chat Server...")
    system.actorOf(Props(classOf[Server]), "main-server")
  }

  def stop(): Unit = {
    val timeout = (20 seconds)
    log.info(s"Stopping the App: Asking Akka System to terminate. Waiting for $timeout")

    Try(Await.result(system.terminate(), timeout)).
      map(_ => log.info("Stopping the App: Stopped gracefully.")).
      recover {
        case _: TimeoutException => log.error("Stopping the App: it took too long. The app is killed :(")
        case throwable: Throwable => log.error(s"Stopping the App: Exception happened - ${throwable.getMessage}")
      }
  }
}

object Main extends App {
  val app = new Main(args)
  app.run()

  sys.addShutdownHook({
    app.stop()
  })
} 

//设置package包名称以及导入依赖的类
package com.gilazaria.subsearch.utils

import java.util.concurrent.TimeUnit
import org.jboss.netty.util.{Timeout, TimerTask, HashedWheelTimer}

import scala.concurrent.{TimeoutException, Promise, Future}
import scala.concurrent.duration.Duration



object TimeoutScheduler {
  val timer = new HashedWheelTimer(10, TimeUnit.MILLISECONDS)

  def scheduleTimeout(promise:Promise[_], after:Duration) = {
    timer.newTimeout(new TimerTask {
      def run(timeout:Timeout){
        promise.failure(new TimeoutException("Operation timed out after " + after.toMillis + " millis"))
      }
    }, after.toNanos, TimeUnit.NANOSECONDS)
  }
}

object TimeoutFuture {
  implicit class FutureWithTimeout[T](f: Future[T]) {
    import scala.concurrent.ExecutionContext

    def withTimeout(after: Duration)(implicit ec: ExecutionContext) = {
      val prom = Promise[T]()
      val timeout = TimeoutScheduler.scheduleTimeout(prom, after)
      val combinedFut = Future.firstCompletedOf(List(f, prom.future))
      f onComplete { case result => timeout.cancel() }
      combinedFut
    }
  }
} 

//设置package包名称以及导入依赖的类
package caustic.runtime

import Backoff._
import org.junit.runner.RunWith
import org.mockito.Mockito._
import org.scalatest.concurrent.ScalaFutures
import org.scalatest.junit.JUnitRunner
import org.scalatest.{FunSuite, Matchers}
import org.scalatest.mockito.MockitoSugar
import scala.concurrent.{Await, Future, TimeoutException}
import scala.concurrent.duration._
import scala.concurrent.ExecutionContext.Implicits.global
import scala.language.postfixOps

@RunWith(classOf[JUnitRunner])
class BackoffTest extends FunSuite
  with ScalaFutures
  with Matchers
  with MockitoSugar {

  test("Backoff properly retries failures.") {
    val fake = mock[Database]
    when(fake.execute(literal(""))(global))
      .thenReturn(Future.failed(new Exception("Retryable.")))
      .thenReturn(Future("Success"))
      .thenReturn(Future.failed(FatalException("Non-Retryable")))
      .thenReturn(Future.failed(new Exception("Retryable")))
      .thenReturn(Future("Success"))

    // Verify that retries succeed on retryable failures.
    whenReady(retry(Seq(100 millis))(fake.execute(literal(""))))(_ shouldEqual "Success")

    // Verify that retries fail on fatal errors.
    whenReady(retry(Seq(100 millis))(fake.execute(literal(""))).failed)(_ shouldBe an [FatalException])

    // Verify that retry respects backoff durations.
    assertThrows[TimeoutException] {
      Await.result(retry(Seq(1 second))(fake.execute(literal(""))).failed, 500 millis)
    }

    verify(fake, times(4)).execute(literal(""))(global)
  }

} 

//设置package包名称以及导入依赖的类
package io.scalac.newspaper.crawler.fetching

import akka.NotUsed
import akka.stream.scaladsl.Flow
import io.scalac.newspaper.crawler.fetching.FetchingFlow._
import io.scalac.newspaper.crawler.fetching.HttpFetchingFlow.FetchingConfig
import play.api.libs.ws.{StandaloneWSClient, StandaloneWSResponse}

import scala.concurrent.duration.Duration
import scala.concurrent.{ExecutionContext, Future, TimeoutException}

trait HttpFetchingFlow extends FetchingFlow {

  def fetchingConfig: FetchingConfig

  def fetchURLs: Flow[String, URLFetchingResult, NotUsed] =
    Flow[String].mapAsyncUnordered(fetchingConfig.maxParallelism)(fetchURL)

  implicit def ec: ExecutionContext

  def wsClient: StandaloneWSClient

  protected def get(url: String): Future[URLFetchingResult] =
    wsClient
      .url(url)
      .withRequestTimeout(fetchingConfig.requestTimeout)
      .get()
      .map(response => if (responseFetchedCorrectly(response)) URLFetched(url, response.body)
      else URLNotFetched(url, response.status, response.body)
      )

  private def fetchURL(url: String): Future[URLFetchingResult] =
    get(url)
      .recover {
        case _: TimeoutException => URLFetchingTimeout(url)
        case ex: Throwable => URLFetchingException(url, ex)
      }

  private def responseFetchedCorrectly(response: StandaloneWSResponse): Boolean =
    response.status == 200
}

object HttpFetchingFlow {
  case class FetchingConfig(maxParallelism: Int, requestTimeout: Duration)
} 

//设置package包名称以及导入依赖的类
package teleporter.integration.utils

import java.util.concurrent.atomic.AtomicLong

import akka.actor.ActorSystem
import akka.util.Timeout

import scala.collection.concurrent.TrieMap
import scala.concurrent.duration._
import scala.concurrent.{Future, Promise, TimeoutException}
import scala.util.{Failure, Try}


trait EventListener[T] {
  val system: ActorSystem
  type ErrorHandler = Long ? Try[T]

  def timeoutHandler(seqNr: Long): Try[T] = Failure(new TimeoutException(s"Event handler timeout, seqNr: $seqNr"))

  def timeoutMessageHandler(message: String)(seqNr: Long): Try[T] = Failure(new TimeoutException(s"Event handler timeout: seqNr: $seqNr, $message"))

  import system.dispatcher

  private val events = TrieMap[Long, Promise[T]]()
  private val _seqNr = new AtomicLong()

  private def getSeqNr: Long = _seqNr.incrementAndGet()

  private def registerEvents(default: ErrorHandler = timeoutHandler)(implicit timeout: Timeout): (Long, Future[T]) = {
    val idx = getSeqNr
    val promise = Promise[T]()
    events += idx ? promise
    system.scheduler.scheduleOnce(timeout.duration) {
      resolve(idx, default(idx))
    }
    (idx, promise.future)
  }

  def asyncEvent(handler: Long ? Unit, default: ErrorHandler = timeoutHandler)(implicit timeout: Timeout = Timeout(10.seconds)): (Long, Future[T]) = {
    val [email protected](seqNr, _) = registerEvents()
    handler(seqNr)
    result
  }

  def resolve(seqNr: Long, result: T): Unit = events.remove(seqNr).foreach(_.success(result))

  def resolve(seqNr: Long, result: Try[T]): Unit = events.remove(seqNr).foreach(_.tryComplete(result))

  def clear(): Unit = {
    events.values.foreach(_.failure(new RuntimeException("Event will clear, So some unComplete event will interrupt")))
    events.clear()
  }
}

class EventListenerImpl[T]()(implicit val system: ActorSystem) extends EventListener[T]

object EventListener {
  def apply[T]()(implicit system: ActorSystem): EventListener[T] = new EventListenerImpl[T]()
} 

//设置package包名称以及导入依赖的类
package com.evolutiongaming.cluster

import akka.actor.{ActorSystem, Address}
import com.evolutiongaming.util.Nel

import scala.concurrent.TimeoutException

class NodesUnreachableException(addresses: Nel[Address], cause: Throwable) extends TimeoutException {

  override def getCause = cause

  override def getMessage = {
    addresses map { _.hostPort } match {
      case Nel(node, Nil) => s"node $node is unreachable"
      case nodes          => s"nodes ${ nodes mkString ", " } are unreachable"
    }
  }
}

object NodesUnreachableException {

  def opt(timeoutException: TimeoutException, system: ActorSystem): Option[NodesUnreachableException] = {
    for {
      cluster <- ClusterOpt(system)
      members <- Nel.opt(cluster.state.unreachable)
    } yield {
      val addresses = for {member <- members} yield member.address
      new NodesUnreachableException(addresses, timeoutException)
    }
  }
}