Scala _类代码示例

//设置package包名称以及导入依赖的类
package proton.game.hermes

import java.time.LocalDateTime
import java.util.UUID

import proton.game._

import scala.concurrent.duration.{FiniteDuration, _}

class HermesGameTickerConfig(val gameFile: UUID, override val players: Seq[Player],
                             override val startTime: Option[LocalDateTime],
                             override val tickDuration: FiniteDuration,
                             override val timeoutDuration: Option[FiniteDuration]) extends GameTickerConfig {
  override val minPlayers: Option[Int] = Some(1)
  override val maxPlayers: Option[Int] = None
}

case class HermesGameTickerConfigFactory(gameFile: UUID, players: Seq[PlayerIdentity], startTime: Option[LocalDateTime],
                                         tickDuration: Option[FiniteDuration], timeoutDuration: Option[FiniteDuration])
  extends GameTickerConfigFactory[HermesGameTickerConfig] {

  override def build(): HermesGameTickerConfig = {
    new HermesGameTickerConfig(gameFile, players.map(p => Player(p)), startTime,
      tickDuration.getOrElse(200.milliseconds), timeoutDuration)
  }
} 

//设置package包名称以及导入依赖的类
package mesosphere.marathon.integration.setup

import akka.actor.ActorSystem
import mesosphere.marathon.integration.facades.ITEnrichedTask
import org.slf4j.LoggerFactory
import play.api.libs.json.{ JsValue, Json }
import spray.client.pipelining._
import spray.http.HttpResponse

import scala.concurrent.duration.{ Duration, _ }

class ServiceMockFacade(task: ITEnrichedTask, waitTime: Duration = 30.seconds)(implicit system: ActorSystem) {
  import scala.concurrent.ExecutionContext.Implicits.global

  val log = LoggerFactory.getLogger(classOf[ServiceMockFacade])

  val baseUrl = s"http://${task.host}:${task.ports.map(_.head).get}"

  val pipeline = sendReceive

  def continue(): RestResult[HttpResponse] = {
    log.info(s"Continue with the service migration: $baseUrl/v1/plan/continue")
    RestResult.await(pipeline(Post(s"$baseUrl/v1/plan/continue")), waitTime)
  }

  def plan(): RestResult[JsValue] = {
    RestResult.await(pipeline(Get(s"$baseUrl/v1/plan")), waitTime).map(_.entity.asString).map(Json.parse)
  }
} 

//设置package包名称以及导入依赖的类
package mesosphere.marathon.integration.setup

import akka.actor.ActorSystem
import org.slf4j.LoggerFactory
import spray.client.pipelining._

import scala.concurrent.duration.{ Duration, _ }
import scala.util.Try

class AppMockFacade(https: Boolean = false, waitTime: Duration = 30.seconds)(implicit system: ActorSystem) {
  import scala.concurrent.ExecutionContext.Implicits.global

  private[this] val log = LoggerFactory.getLogger(getClass)

  private[this] def retry[T](retries: Int = 200, waitForNextTry: Duration = 50.milliseconds)(block: => T): T = {
    val attempts = Iterator(Try(block)) ++ Iterator.continually(Try {
      Thread.sleep(waitForNextTry.toMillis)
      block
    })
    val firstSuccess = attempts.take(retries - 1).find(_.isSuccess).flatMap(_.toOption)
    firstSuccess.getOrElse(block)
  }

  val pipeline = sendReceive
  def ping(host: String, port: Int): RestResult[String] = custom("/ping")(host, port)

  def scheme: String = if (https) "https" else "http"

  def custom(uri: String)(host: String, port: Int): RestResult[String] = {
    retry() {
      RestResult.await(pipeline(Get(s"$scheme://$host:$port$uri")), waitTime).map(_.entity.asString)
    }
  }
} 

//设置package包名称以及导入依赖的类
package com.yannick_cw.elastic_indexer4s.elasticsearch.elasic_config

import com.sksamuel.elastic4s.TcpClient
import org.elasticsearch.common.settings.Settings
import org.joda.time.DateTime

import scala.concurrent.duration.{FiniteDuration, _}

case class ElasticWriteConfig(
  hosts: List[String],
  port: Int,
  cluster: String,
  indexPrefix: String,
  docType: String,
  mappingSetting: MappingSetting = TypedMappingSetting(),
  writeBatchSize: Int = 50,
  writeConcurrentRequest: Int = 10,
  writeMaxAttempts: Int = 5,
  logWriteSpeedEvery: FiniteDuration = 1 minute,
  waitForElasticTimeout: FiniteDuration = 5 seconds
) {
  val indexName = indexPrefix + "_" + new DateTime().toString("yyyy-MM-dd't'HH:mm:ss")
  private def settings = Settings.builder().put("cluster.name", cluster).build()
  lazy val client: TcpClient = TcpClient.transport(settings, "elasticsearch://" + hosts
    .map(host => s"$host:$port").mkString(","))
}

object ElasticWriteConfig {
  def apply(
    esTargetHosts: List[String],
    esTargetPort: Int,
    esTargetCluster: String,
    esTargetIndexPrefix: String,
    esTargetType: String
  ): ElasticWriteConfig =
    new ElasticWriteConfig(esTargetHosts, esTargetPort, esTargetCluster, esTargetIndexPrefix, esTargetType)
} 

//设置package包名称以及导入依赖的类
package io.cronit.services

import com.cronutils.model.CronType
import com.cronutils.model.definition.CronDefinitionBuilder
import com.cronutils.model.time.ExecutionTime
import com.cronutils.parser.CronParser
import io.cronit.utils.Clock
import io.cronit.utils.ClockUtils._
import org.joda.time.DateTime

import scala.concurrent.duration.{Duration, _}

trait CronExpressionComponent {

  val cronExpressionService: CronExpressionService
  val cronDefinition = CronDefinitionBuilder.instanceDefinitionFor(CronType.UNIX)
  val cronParser = new CronParser(cronDefinition)

  class CronExpressionService {
    def getNextExecutionDate(expression: String) = {
      val cron = cronParser.parse(expression)
      ExecutionTime.forCron(cron).nextExecution(Clock.asZonedDateTime).toJoda
    }

    def getFiniteDurationFromNow(dateTime: DateTime) = {
      val now = Clock.now()
      val diff = dateTime.getMillis - now.getMillis
      Duration(diff, MILLISECONDS)
    }
  }

} 

//设置package包名称以及导入依赖的类
import CounterService._
import Worker._
import akka.actor.SupervisorStrategy.Stop
import akka.actor._
import akka.event.LoggingReceive
import akka.pattern.{ask, pipe}
import akka.util.Timeout

import scala.concurrent.duration.{Duration, _}


class Worker extends Actor with ActorLogging {

  implicit val askTimeout = Timeout(5 seconds)

  // Stop the CounterService child if it throws ServiceUnavailable
  override val supervisorStrategy = OneForOneStrategy() {
    case _: CounterService.ServiceUnavailable => Stop
  }

  // The sender of the initial Start message will continuously be notified
  // about progress
  var progressListener: Option[ActorRef] = None
  val counterService = context.actorOf(Props[CounterService], name = "counter")
  val totalCount = 51

  import context.dispatcher

  // Use this Actors' Dispatcher as ExecutionContext

  def receive = LoggingReceive {
    case Start if progressListener.isEmpty =>
      progressListener = Some(sender())
      context.system.scheduler.schedule(Duration.Zero, 1 second, self, Do)

    case Do =>
      counterService ! Increment(1)
      counterService ! Increment(1)
      counterService ! Increment(1)

      // Send current progress to the initial sender
      counterService ? GetCurrentCount map {
        case CurrentCount(_, count) => Progress(100.0 * count / totalCount)
      } pipeTo progressListener.get
  }
}

object Worker {

  case object Start

  case object Do

  final case class Progress(percent: Double)

} 

//设置package包名称以及导入依赖的类
package au.com.agiledigital.dao.slick.test

import au.com.agiledigital.dao.slick.JdbcProfileProvider
import org.scalatest._
import slick.backend.DatabasePublisher

import scala.concurrent.duration.{ FiniteDuration, _ }
import scala.concurrent.{ Await, ExecutionContext }
import scala.language.postfixOps
import scala.util.{ Failure, Success }

trait DbSuite extends BeforeAndAfterAll with Matchers with OptionValues with TryValues {

  self: Suite with JdbcProfileProvider =>

  import driver.api._

  def setupDb: driver.backend.DatabaseDef

  private lazy val database: driver.backend.DatabaseDef = setupDb

  override protected def afterAll(): Unit = {
    database.close()
  }

  def query[T](dbAction: DBIO[T])(implicit ex: ExecutionContext, timeout: FiniteDuration = 5 seconds): T =
    runAction(dbAction)

  def stream[T](dbAction: StreamingDBIO[T, T])(implicit ex: ExecutionContext, timeout: FiniteDuration = 5 seconds): DatabasePublisher[T] = {
    database.stream(dbAction.transactionally)
  }

  def commit[T](dbAction: DBIO[T])(implicit ex: ExecutionContext, timeout: FiniteDuration = 5 seconds): T =
    runAction(dbAction.transactionally)

  def rollback[T](dbAction: DBIO[T])(implicit ex: ExecutionContext, timeout: FiniteDuration = 5 seconds): T = {

    case class RollbackException(expected: T) extends RuntimeException("rollback exception")

    val markedForRollback = dbAction.flatMap { result =>
      DBIO
        .failed(RollbackException(result))
        .map(_ => result)
    }.transactionally.asTry

    val finalAction =
      markedForRollback.map {
        case Success(result) => result
        case Failure(RollbackException(result)) => result
        case Failure(other) => throw other
      }

    runAction(finalAction)
  }

  private def runAction[T](dbAction: DBIO[T])(implicit ex: ExecutionContext, timeout: FiniteDuration): T = {
    val result = database.run(dbAction)
    Await.result(result, timeout)
  }

}