Add fouleggs sample application

build.sbt

@@ -22,8 +22,17 @@ lazy val sampleapp = (project in file("sampleapp"))
   )
   .dependsOn(adbms)
 
+lazy val fouleggs = (project in file("fouleggs"))
+  .settings(
+    Common.commonSettings,
+    organization := Common.organization,
+    scalaVersion := Common.scalaVersion,
+    libraryDependencies ++= Dependencies.akkaActorDependencies
+  )
+  .dependsOn(adbms)
+
 lazy val root = (project in file("."))
-  .aggregate(adbms, sampleapp)
+  .aggregate(adbms, sampleapp, fouleggs)
   .settings(
     version := Common.frameworkVersion,
     scalaVersion := Common.scalaVersion

fouleggs/src/de/up/hpi/informationsystems/fouleggs/Main.scala

@@ -0,0 +1,19 @@
+package de.up.hpi.informationsystems.fouleggs
+
+import akka.actor.Terminated
+import de.up.hpi.informationsystems.fouleggs.dactors.SystemInitializer
+
+import scala.concurrent.{Await, Future}
+import scala.concurrent.duration._
+import scala.language.postfixOps
+
+object Main extends App {
+
+  println("Starting system")
+  SystemInitializer.initializer ! SystemInitializer.Startup(5 seconds)
+
+  sys.addShutdownHook({
+    println("Received shutdown signal from JVM")
+    SystemInitializer.initializer ! SystemInitializer.Shutdown
+  })
+}

fouleggs/src/de/up/hpi/informationsystems/fouleggs/dactors/AdminSession.scala

@@ -0,0 +1,184 @@
+package de.up.hpi.informationsystems.fouleggs.dactors
+
+import akka.actor.{Actor, ActorLogging, ActorRef, Props}
+import de.up.hpi.informationsystems.adbms.Dactor
+import de.up.hpi.informationsystems.adbms.protocols.DefaultMessagingProtocol
+import de.up.hpi.informationsystems.adbms.record.Record
+import de.up.hpi.informationsystems.adbms.record.ColumnCellMapping._
+import de.up.hpi.informationsystems.adbms.relation.Relation
+import de.up.hpi.informationsystems.adbms.protocols.RequestResponseProtocol
+
+object AdminSession {
+
+  final case object Up
+
+  object AddCastToFilm {
+    final case class Request(personId: Int, filmId: Int, roleName: String) extends RequestResponseProtocol.Request
+    final case class Success(result: Relation) extends RequestResponseProtocol.Success
+    final case class Failure(e: Throwable) extends RequestResponseProtocol.Failure
+  }
+
+  def props: Props = Props[AdminSession]
+}
+
+/**
+  * Provides top level functionalities
+  */
+class AdminSession extends Actor with ActorLogging {
+  override def receive: Receive = commonBehaviour
+
+  def commonBehaviour: Receive = {
+    case AdminSession.Up => sender() ! akka.actor.Status.Success
+    case AdminSession.AddCastToFilm.Request(personId, filmId, roleName) =>
+      addCastToFilm(personId, filmId, roleName)
+    case DefaultMessagingProtocol.SelectAllFromRelation.Success(rel) => log.info(rel.toString)
+  }
+
+  def addCastToFilm(personId: Int, filmId: Int, roleName: String): Unit = {
+    log.info(s"Adding person $personId as $roleName to film $filmId")
+    val functor: ActorRef = context.system.actorOf(CastAndFilmographyFunctor.props(personId, filmId, roleName, self))
+    context.become(waitingForSuccess(functor) orElse commonBehaviour)
+  }
+
+  def waitingForSuccess(from: ActorRef): Receive = {
+    case akka.actor.Status.Success if sender == from => {
+      context.become(commonBehaviour)
+      log.info("Connected cast to film")
+
+      val empire = Dactor.dactorSelection(context.system, classOf[Film], 1)
+      val mark = Dactor.dactorSelection(context.system, classOf[Person], 1)
+
+      empire ! DefaultMessagingProtocol.SelectAllFromRelation.Request(Film.Cast.name)
+      mark ! DefaultMessagingProtocol.SelectAllFromRelation.Request(Person.Filmography.name)
+    }
+  }
+}
+
+object CastAndFilmographyFunctor {
+  def props(personId: Int, filmId: Int, roleName: String, backTo: ActorRef): Props =
+    Props(new CastAndFilmographyFunctor(personId, filmId, roleName, backTo))
+}
+
+class CastAndFilmographyFunctor(personId: Int, filmId: Int, roleName: String, backTo: ActorRef) extends Actor {
+
+  val sub1: ActorRef = context.system.actorOf(AddFilmFunctor.props(personId, filmId, roleName, self))
+  val sub2: ActorRef = context.system.actorOf(AddCastFunctor.props(personId, filmId, roleName, self))
+
+  override def receive: Receive = waitingForAck(Seq(sub1, sub2))
+
+  def waitingForAck(pending: Seq[ActorRef]): Receive = {
+    case akka.actor.Status.Success =>
+      val remainingACKs = pending.filterNot(_ == sender())
+
+      if(remainingACKs.isEmpty) {
+        backTo ! akka.actor.Status.Success
+        context.stop(self)
+      } else {
+        context.become(waitingForAck(remainingACKs))
+      }
+
+    case akka.actor.Status.Failure(e) =>
+      backTo ! akka.actor.Status.Failure(e)
+      context.stop(self)
+  }
+}
+
+object AddFilmFunctor {
+  def props(personId: Int, filmId: Int, roleName: String, backTo: ActorRef): Props =
+    Props(new AddFilmFunctor(personId: Int, filmId: Int, roleName: String, backTo: ActorRef))
+}
+
+class AddFilmFunctor(personId: Int, filmId: Int, roleName: String, backTo: ActorRef) extends Actor {
+
+  override def receive: Receive = waitingForFilmInfo orElse commonBehaviour
+
+  Dactor.dactorSelection(context.system, classOf[Film], filmId) ! DefaultMessagingProtocol.SelectAllFromRelation.Request("film_info")
+
+  def waitingForFilmInfo: Receive = {
+    case DefaultMessagingProtocol.SelectAllFromRelation.Failure(e) => fail(e)
+    case DefaultMessagingProtocol.SelectAllFromRelation.Success(relation: Relation) =>
+      val filmInfoOption: Option[Record] = relation.records.toOption match {
+        case Some(records: Seq[Record]) => records.headOption
+        case _ => None
+      }
+    filmInfoOption match {
+      case None => fail(new RuntimeException("Received empty film info"))
+
+      case Some(filmInfo: Record) =>
+        val newFilmRecord: Record = Person.Filmography.newRecord(
+          Person.Filmography.filmId ~> filmId &
+            Person.Filmography.roleName ~> roleName &
+            Person.Filmography.filmName ~> filmInfo(Film.Info.title) &
+            Person.Filmography.filmRelease ~> filmInfo(Film.Info.release)
+        ).build()
+        Dactor.dactorSelection(context.system, classOf[Person], personId) ! DefaultMessagingProtocol.InsertIntoRelation("filmography", Seq(newFilmRecord))
+        context.become(waitingForInsertAck orElse commonBehaviour)
+    }
+  }
+
+  def waitingForInsertAck: Receive = {
+    case akka.actor.Status.Success =>
+      backTo ! akka.actor.Status.Success
+      context.stop(self) // because this is our last state
+  }
+
+  def commonBehaviour: Receive = {
+    case akka.actor.Status.Failure(e) => fail(e)
+  }
+
+  private def fail(e: Throwable): Unit = {
+    backTo ! akka.actor.Status.Failure(e)
+    context.stop(self)
+  }
+}
+
+object AddCastFunctor {
+  def props(personId: Int, filmId: Int, roleName: String, backTo: ActorRef): Props =
+    Props(new AddCastFunctor(personId: Int, filmId: Int, roleName: String, backTo: ActorRef))
+}
+
+class AddCastFunctor(personId: Int, filmId: Int, roleName: String, backTo: ActorRef) extends Actor {
+
+  override def receive: Receive = waitingForPersonInfo orElse commonBehaviour
+
+  // very first message has to be sent outside of Receives
+  Dactor.dactorSelection(context.system, classOf[Person], personId) ! DefaultMessagingProtocol.SelectAllFromRelation.Request("person_info")
+
+  def waitingForPersonInfo: Receive = {
+    case DefaultMessagingProtocol.SelectAllFromRelation.Failure(e) => fail(e)
+    case DefaultMessagingProtocol.SelectAllFromRelation.Success(relation: Relation) => {
+      val personInfoOption: Option[Record] = relation.records.toOption match {
+        case Some(records: Seq[Record]) => records.headOption
+        case _ => None
+      }
+      personInfoOption match {
+        case None => fail(new RuntimeException("Received empty personInfo"))
+
+        case Some(personInfo: Record) =>
+          val newCastRecord: Record = Film.Cast.newRecord(
+            Film.Cast.firstName ~> personInfo(Person.Info.firstName) &
+              Film.Cast.lastName ~> personInfo(Person.Info.lastName) &
+              Film.Cast.roleName ~> roleName &
+              Film.Cast.personId ~> personId
+          ).build()
+          Dactor.dactorSelection(context.system, classOf[Film], filmId) ! DefaultMessagingProtocol.InsertIntoRelation("film_cast", Seq(newCastRecord))
+          context.become(waitingForInsertAck orElse commonBehaviour)
+      }
+    }
+  }
+
+  def waitingForInsertAck: Receive = {
+    case akka.actor.Status.Success =>
+      backTo ! akka.actor.Status.Success
+      context.stop(self)
+  }
+
+  def commonBehaviour: Receive = {
+    case akka.actor.Status.Failure(e) => fail(e)
+  }
+
+  private def fail(e: Throwable): Unit = {
+    backTo ! akka.actor.Status.Failure(e)
+    context.stop(self)
+  }
+}

fouleggs/src/de/up/hpi/informationsystems/fouleggs/dactors/Film.scala

@@ -0,0 +1,51 @@
+package de.up.hpi.informationsystems.fouleggs.dactors
+
+import java.time.ZonedDateTime
+
+import akka.actor.Actor
+import de.up.hpi.informationsystems.adbms.Dactor
+import de.up.hpi.informationsystems.adbms.definition.ColumnDef.UntypedColumnDef
+import de.up.hpi.informationsystems.adbms.definition.{ColumnDef, RelationDef}
+import de.up.hpi.informationsystems.adbms.protocols.DefaultMessageHandling
+import de.up.hpi.informationsystems.adbms.relation.{MutableRelation, RowRelation, SingleRowRelation}
+
+object Film {
+  // implicit default values
+  import de.up.hpi.informationsystems.adbms.definition.ColumnTypeDefaults._
+
+  object Info extends RelationDef {
+    // val filmId: ColumnDef[Int] = ColumnDef[Int]("film_id") should be same as the Dactors id and therefor superfluous
+    val title: ColumnDef[String] = ColumnDef[String]("film_title", "Untitled")
+    val description: ColumnDef[String] = ColumnDef[String]("film_descr")
+    val release: ColumnDef[ZonedDateTime] = ColumnDef[ZonedDateTime]("film_release")
+
+    override val name: String = "film_info"
+    override val columns: Set[UntypedColumnDef] = Set(title, description, release)
+  }
+
+  object Cast extends RelationDef {
+    val personId: ColumnDef[Int] = ColumnDef[Int]("person_id")
+    val firstName: ColumnDef[String] = ColumnDef[String]("first_name")
+    val lastName: ColumnDef[String] = ColumnDef[String]("last_name")
+    val roleName: ColumnDef[String] = ColumnDef[String]("role_name")
+
+    override val name: String = "film_cast"
+    override val columns: Set[UntypedColumnDef] = Set(personId, firstName, lastName, roleName)
+  }
+
+  class FilmBase(id: Int) extends Dactor(id) {
+    /**
+      * Returns a map of relation definition and corresponding relational store.
+      *
+      * @return map of relation definition and corresponding relational store
+      */
+    override protected val relations: Map[RelationDef, MutableRelation] =
+      Map(Film.Info -> SingleRowRelation(Film.Info)) ++
+      Map(Film.Cast -> RowRelation(Film.Cast))
+
+    override def receive: Receive = Actor.emptyBehavior
+  }
+}
+
+class Film(id: Int) extends Film.FilmBase(id) with DefaultMessageHandling
+

fouleggs/src/de/up/hpi/informationsystems/fouleggs/dactors/Person.scala

@@ -0,0 +1,52 @@
+package de.up.hpi.informationsystems.fouleggs.dactors
+
+import java.time.ZonedDateTime
+
+import akka.actor.Actor
+import de.up.hpi.informationsystems.adbms.Dactor
+import de.up.hpi.informationsystems.adbms.definition.ColumnDef.UntypedColumnDef
+import de.up.hpi.informationsystems.adbms.definition.{ColumnDef, RelationDef}
+import de.up.hpi.informationsystems.adbms.protocols.DefaultMessageHandling
+import de.up.hpi.informationsystems.adbms.relation.{MutableRelation, RowRelation, SingleRowRelation}
+
+object Person {
+  // Relation Definitions
+  import de.up.hpi.informationsystems.adbms.definition.ColumnTypeDefaults._
+
+  object Info extends RelationDef {
+    val personId: ColumnDef[Int] = ColumnDef[Int]("person_id")
+    val firstName: ColumnDef[String] = ColumnDef[String]("first_name")
+    val lastName: ColumnDef[String] = ColumnDef[String]("last_name")
+    val birthday: ColumnDef[ZonedDateTime] = ColumnDef[ZonedDateTime]("birthday")
+
+    override val name: String = "person_info"
+    override val columns: Set[UntypedColumnDef] = Set(personId, firstName, lastName, birthday)
+  }
+
+  object Filmography extends RelationDef {
+    val filmId: ColumnDef[Int] = ColumnDef[Int]("film_id")
+    val filmName: ColumnDef[String] = ColumnDef[String]("film_name")
+    val filmRelease: ColumnDef[ZonedDateTime] = ColumnDef[ZonedDateTime]("film_release")
+    val roleName: ColumnDef[String] = ColumnDef[String]("role_name")
+
+    override val name: String = "filmography"
+    override val columns: Set[UntypedColumnDef] = Set(filmId, filmName, filmRelease, roleName)
+  }
+
+  // Dactor Definition
+  class PersonBase(id: Int) extends Dactor(id) {
+    /**
+      * Returns a map of relation definition and corresponding relational store.
+      *
+      * @return map of relation definition and corresponding relational store
+      */
+    override protected val relations: Map[RelationDef, MutableRelation] =
+      Map(Person.Info -> SingleRowRelation(Person.Info)) ++
+      Map(Person.Filmography -> RowRelation(Person.Filmography))
+
+    override def receive: Receive = Actor.emptyBehavior
+  }
+}
+
+class Person(id: Int) extends Person.PersonBase(id) with DefaultMessageHandling
+