Scala successful类代码示例

//设置package包名称以及导入依赖的类
package dao

import play.api.db.slick.HasDatabaseConfigProvider
import play.api.libs.concurrent.Execution.defaultContext
import slick.driver.H2Driver.api._
import slick.driver.JdbcProfile
import slick.lifted.{Rep, TableQuery}

import scala.concurrent.Future.successful
import scala.concurrent.{ExecutionContext, Future}

trait DefaultDAO[ID, E, Z <: Table[E]] extends BaseDAO[ID, E] with HasExecutionContext {
  this: HasDatabaseConfigProvider[JdbcProfile] =>

  // @formatter:off
  def q: TableQuery[Z]
  def filterIds(e: Seq[ID]): Query[Z, Z#TableElementType, Seq]
  def getId(e: E): Option[ID]
  def id(): Query[Rep[ID], ID, Seq]
  // @formatter:on

  def insertSeq(e: Seq[E]): Future[Seq[ID]] =
    if (e.nonEmpty) db.run(((q returning id()) ++= e).transactionally) else successful(Seq.empty[ID])

  def insertForce(e: Seq[E]): Future[Unit] =
    if (e.nonEmpty) db.run((q ++= e).transactionally) map (_ => ()) else successful((): Unit)

  def delete(): Future[Int] =
    db.run(q.delete.transactionally)

  def delete(ids: Seq[ID]): Future[Int] =
    if (ids.nonEmpty) db.run(filterIds(ids).delete.transactionally) else successful(0)

  def update(e: E): Future[Int] =
    getId(e).fold(successful(0))(id => db.run(filterIds(id :: Nil).update(e).transactionally))

  def seq(offset: Int, limit: Int): Future[Seq[E]] =
    db.run(q.drop(offset).take(limit).result.transactionally)

  def byId(e: Seq[ID]): Future[Seq[E]] =
    db.run(filterIds(e).result.transactionally)

  def count(): Future[Int] =
    db.run(q.countDistinct.result.transactionally)

  def whereOne(f: Z => Rep[Boolean]): Future[E] =
    whereSeq(f) map (_.head)

  def whereOpt(f: Z => Rep[Boolean]): Future[Option[E]] =
    whereSeq(f) map (_.headOption)

  def whereSeq(f: Z => Rep[Boolean]): Future[Seq[E]] =
    db.run(q.filter(f).result.transactionally)

  // play execution context by default
  implicit def executionContext: ExecutionContext = defaultContext
} 

//设置package包名称以及导入依赖的类
package io.shedin.crud.lib

import org.mockito.Mockito.{verify, when}
import org.scalatest.FlatSpec
import org.scalatest.mockito.MockitoSugar

import scala.concurrent.Await.result
import scala.concurrent.Future
import scala.concurrent.Future.successful
import scala.concurrent.duration.{Duration, SECONDS}

class CrudServiceSpec extends FlatSpec with MockitoSugar {

  class CrudServiceTestImpl(crudRepository: CrudRepository[Int]) extends CrudService[Int](crudRepository)

  private val crudRepository = mock[CrudRepository[Int]]
  private val crudService = new CrudServiceTestImpl(crudRepository)
  private val resource = 123
  private val resourceId = "resourceId"

  private implicit val timeout = Duration(2, SECONDS)

  def await[T](future: Future[T])(implicit timeout: Duration) = result(future, timeout)

  "Crud service" should "delegate creation to a repository" in {
    when(crudRepository.create(resource)).thenReturn(successful(resource))
    await(crudService.create(resource))
    verify(crudRepository).create(resource)
  }

  it should "delegate reading to a repository" in {
    when(crudRepository.read(resourceId)).thenReturn(successful(None))
    await(crudService.read(resourceId))
    verify(crudRepository).read(resourceId)
  }

  it should "delegate whole updates to a repository" in {
    when(crudRepository.update(resourceId, resource)).thenReturn(successful(None))
    await(crudService.update(resourceId, resource))
    verify(crudRepository).update(resourceId, resource)
  }

  it should "delegate partial updates to a repository" in {
    when(crudRepository.update(resourceId, "partial payload")).thenReturn(successful(None))
    await(crudService.update(resourceId, "partial payload"))
    verify(crudRepository).update(resourceId, "partial payload")
  }

  it should "delegate deletion to a repository" in {
    when(crudRepository.delete(resourceId)).thenReturn(successful(true))
    await(crudService.delete(resourceId))
    verify(crudRepository).delete(resourceId)
  }

} 

//设置package包名称以及导入依赖的类
package uk.co.telegraph.utils.server.filters

import java.nio.charset.StandardCharsets.UTF_8
import java.util.Base64
import javax.inject.{Inject, Singleton}

import akka.stream.Materializer
import play.api.Configuration
import play.api.mvc.Results._
import play.api.mvc.{Filter, RequestHeader, Result}
import uk.co.telegraph.utils.server.filters.AuthFilter._

import scala.concurrent.Future
import scala.concurrent.Future.successful

@Singleton
class AuthFilter @Inject()(config:Configuration)(implicit val mat:Materializer)
  extends Filter
{
  private val securePaths:Set[String] = config.getOptional[Seq[String]]("app.auth.paths")
    .map(_.toSet)
    .getOrElse(DefaultPaths)

  private val authToken = {
    val username:String = config.getOptional[String]("app.auth.user").getOrElse(DefaultUsername)
    val password:String = config.getOptional[String]("app.auth.pwd" ).getOrElse(DefaultPassword)

    "Basic " + Base64.getEncoder.encodeToString( s"$username:$password".getBytes(UTF_8) )
  }

  def apply(f: (RequestHeader) => Future[Result])(request: RequestHeader): Future[Result] = {
    if (securePaths.exists(request.path endsWith _)) {
      if( !request.headers.get("Authorization").contains(authToken) ) {
        return UnauthorizedResponse
      }
    }
    f(request)
  }
}

object AuthFilter {
  val DefaultUsername      = "admin"
  val DefaultPassword      = "admin"
  val DefaultPaths         = Set("/admin")
  val UnauthorizedResponse: Future[Result] = successful(Unauthorized.withHeaders("WWW-Authenticate" -> "Basic realm=Unauthorized"))
}