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package spark.deploy.master
import akka.actor.{ActorRef, ActorSystem}
import akka.dispatch.Await
import akka.pattern.ask
import akka.util.Timeout
import akka.util.duration._
import cc.spray.Directives
import cc.spray.directives._
import cc.spray.typeconversion.TwirlSupport._
import spark.deploy._
class MasterWebUI(val actorSystem: ActorSystem, master: ActorRef) extends Directives {
val RESOURCE_DIR = "spark/deploy/master/webui"
val STATIC_RESOURCE_DIR = "spark/deploy/static"
implicit val timeout = Timeout(1 seconds)
val handler = {
get {
path("") {
completeWith {
val future = master ? RequestMasterState
future.map {
masterState => masterui.html.index.render(masterState.asInstanceOf[MasterState])
}
}
} ~
path("job") {
parameter("jobId") { jobId =>
completeWith {
val future = master ? RequestMasterState
future.map { state =>
val masterState = state.asInstanceOf[MasterState]
// A bit ugly an inefficient, but we won't have a number of jobs
// so large that it will make a significant difference.
(masterState.activeJobs ::: masterState.completedJobs).find(_.id == jobId) match {
case Some(job) => masterui.html.job_details.render(job)
case _ => null
}
}
}
}
} ~
pathPrefix("static") {
getFromResourceDirectory(STATIC_RESOURCE_DIR)
} ~
getFromResourceDirectory(RESOURCE_DIR)
}
}
}
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