securesocial.core.services.AuthenticatorService.scala Maven / Gradle / Ivy
/**
* Copyright 2013-2014 Jorge Aliss (jaliss at gmail dot com) - twitter: @jaliss
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package securesocial.core.services
import play.api.mvc.RequestHeader
import scala.concurrent.{ ExecutionContext, Future }
import securesocial.core.authenticator.{ Authenticator, AuthenticatorBuilder }
import scala.reflect.ClassTag
import org.apache.commons.lang3.reflect.TypeUtils
class AuthenticatorService[U](builders: AuthenticatorBuilder[U]*)(implicit val executionContext: ExecutionContext) {
val asMap = builders.map { builder => builder.id -> builder }.toMap
def find(id: String): Option[AuthenticatorBuilder[U]] = {
asMap.get(id)
}
def findAs[T <: AuthenticatorBuilder[U]](id: String)(implicit ct: ClassTag[T]): Option[T] = {
find(id) map {
case builder if TypeUtils.isInstance(builder, ct.runtimeClass) => builder.asInstanceOf[T]
}
}
def fromRequest(implicit request: RequestHeader): Future[Option[Authenticator[U]]] = {
def iterateIt(seq: Seq[AuthenticatorBuilder[U]]): Future[Option[Authenticator[U]]] = {
if (seq.isEmpty)
Future.successful(None)
else {
seq.head.fromRequest(request).flatMap {
case Some(authenticator) => Future.successful(Some(authenticator))
case None => iterateIt(seq.tail)
}
}
}
iterateIt(builders)
}
}