package service
package user
-import gr.grnet.aquarium.actor._
-
-import gr.grnet.aquarium.util.shortClassNameOf
-import message.config.{ActorProviderConfigured, AquariumPropertiesLoaded}
-import akka.config.Supervision.Temporary
-import gr.grnet.aquarium.Configurator
-import gr.grnet.aquarium.util.date.{TimeHelpers, MutableDateCalc}
-import gr.grnet.aquarium.actor.message.event.{ProcessResourceEvent, ProcessIMEvent}
-import gr.grnet.aquarium.actor.message.{GetUserStateResponse, GetUserBalanceResponse, GetUserStateRequest, GetUserBalanceRequest}
-import gr.grnet.aquarium.computation.data.IMStateSnapshot
-import gr.grnet.aquarium.computation.UserState
-import gr.grnet.aquarium.event.model.im.IMEventModel
+import gr.grnet.aquarium.AquariumInternalError
+import gr.grnet.aquarium.actor.message.GetUserBalanceRequest
+import gr.grnet.aquarium.actor.message.GetUserBalanceResponse
+import gr.grnet.aquarium.actor.message.GetUserBalanceResponseData
+import gr.grnet.aquarium.actor.message.GetUserBillRequest
+import gr.grnet.aquarium.actor.message.GetUserBillResponse
+import gr.grnet.aquarium.actor.message.GetUserBillResponseData
+import gr.grnet.aquarium.actor.message.GetUserStateRequest
+import gr.grnet.aquarium.actor.message.GetUserStateResponse
+import gr.grnet.aquarium.actor.message.GetUserWalletRequest
+import gr.grnet.aquarium.actor.message.GetUserWalletResponse
+import gr.grnet.aquarium.actor.message.GetUserWalletResponseData
+import gr.grnet.aquarium.actor.message.config.AquariumPropertiesLoaded
+import gr.grnet.aquarium.charging.state.{UserStateModel, UserAgreementHistoryModel, UserStateBootstrap}
+import gr.grnet.aquarium.computation.BillingMonthInfo
+import gr.grnet.aquarium.message.avro.gen.{IMEventMsg, ResourceEventMsg, UserStateMsg}
+import gr.grnet.aquarium.message.avro.{ModelFactory, MessageFactory, MessageHelpers, AvroHelpers}
+import gr.grnet.aquarium.service.event.BalanceEvent
+import gr.grnet.aquarium.util.date.TimeHelpers
+import gr.grnet.aquarium.util.{LogHelpers, shortClassNameOf}
+import gr.grnet.aquarium.policy.{ResourceType, PolicyModel}
+import gr.grnet.aquarium.charging.bill.BillEntryMsg
/**
*
*/
class UserActor extends ReflectiveRoleableActor {
- private[this] var _imState: IMStateSnapshot = _
- private[this] var _userState: UserState = _
+ private[this] var _rcMsgCount = 0
+ private[this] var _imMsgCount = 0
+ private[this] var _userID: String = "<?>"
+ private[this] var _userState: UserStateModel = _
+ private[this] var _userCreationIMEvent: IMEventMsg = _
+ private[this] var _userAgreementHistoryModel: UserAgreementHistoryModel = _
+ private[this] var _latestIMEventOriginalID: String = ""
+ private[this] var _latestIMEventOccurredMillis: Long = -1L
+ private[this] var _latestResourceEventOriginalID: String = ""
+ private[this] var _userStateBootstrap: UserStateBootstrap = _
+
+ def unsafeUserID = {
+ if(!haveUserID) {
+ throw new AquariumInternalError("%s not initialized")
+ }
- self.lifeCycle = Temporary
+ this._userID
+ }
- private[this] def _userID = this._userState.userID
- private[this] def _shutmedown(): Unit = {
- if(_haveUserState) {
- UserActorCache.invalidate(_userID)
- }
+ override def postStop() {
+ DEBUG("I am finally stopped (in postStop())")
+ aquarium.akkaService.notifyUserActorPostStop(this)
+ }
- self.stop()
+ private[this] def shutmedown(): Unit = {
+ if(haveUserID) {
+ aquarium.akkaService.invalidateUserActor(this)
+ }
}
override protected def onThrowable(t: Throwable, message: AnyRef) = {
- logChainOfCauses(t)
+ LogHelpers.logChainOfCauses(logger, t)
ERROR(t, "Terminating due to: %s(%s)", shortClassNameOf(t), t.getMessage)
- _shutmedown()
+ shutmedown()
}
def role = UserActorRole
- private[this] def _configurator: Configurator = Configurator.MasterConfigurator
+ private[this] def chargingService = aquarium.chargingService
- private[this] def _timestampTheshold =
- _configurator.props.getLong(Configurator.Keys.user_state_timestamp_threshold).getOr(10000)
+ private[this] def stdUserStateStoreFunc = (userState: UserStateMsg) ⇒ {
+ aquarium.userStateStore.insertUserState(userState)
+ }
+
+ @inline private[this] def haveUserID = {
+ this._userID ne null
+ }
+ def onAquariumPropertiesLoaded(event: AquariumPropertiesLoaded): Unit = {
+ }
- private[this] def _haveUserState = {
+ @inline private[this] def haveAgreements = {
+ (this._userAgreementHistoryModel ne null) && this._userAgreementHistoryModel.size > 0
+ }
+
+ @inline private[this] def haveUserState = {
this._userState ne null
}
- private[this] def _haveIMState = {
- this._imState ne null
+ @inline private[this] def haveUserStateBootstrap = {
+ this._userStateBootstrap ne null
}
- def onAquariumPropertiesLoaded(event: AquariumPropertiesLoaded): Unit = {
+ private[this] def createUserAgreementHistoryModel(imEvent: IMEventMsg) {
+ assert(MessageHelpers.isIMEventCreate(imEvent))
+ assert(this._userAgreementHistoryModel eq null)
+ assert(this._userCreationIMEvent eq null)
+
+ this._userCreationIMEvent = imEvent
+ this._userAgreementHistoryModel = ModelFactory.newUserAgreementHistoryModelFromIMEvent(
+ imEvent,
+ imEvent.getOriginalID
+ )
+ }
+
+ private[this] def updateAgreementHistoryFrom(imEvent: IMEventMsg): Unit = {
+ val isCreateUser = MessageHelpers.isIMEventCreate(imEvent)
+ if(isCreateUser) {
+ if(haveAgreements) {
+ throw new AquariumInternalError(
+ "Got user creation event (id=%s) but I already have one (id=%s)",
+ this._userCreationIMEvent.getOriginalID,
+ imEvent.getOriginalID
+ )
+ }
+
+ createUserAgreementHistoryModel(imEvent) // now we have an agreement history
+ createUserStateBootstrap(imEvent)
+ }
+
+ val effectiveFromMillis = imEvent.getOccurredMillis
+ val role = imEvent.getRole
+ // calling unsafe just for the side-effect
+ assert(null ne aquarium.unsafeFullPriceTableForRoleAt(role, effectiveFromMillis))
+
+ // add to model (will update the underlying messages as well)
+ val newUserAgreementModel = ModelFactory.newUserAgreementModelFromIMEvent(imEvent, imEvent.getOriginalID)
+ this._userAgreementHistoryModel += newUserAgreementModel
+
+ // We assume that we always call this method with in-sync events
+ assert(imEvent.getOccurredMillis >= this._latestIMEventOccurredMillis)
+ updateLatestIMEventStateFrom(imEvent)
+ }
+
+// private[this] def updateLatestIMEventIDFrom(imEvent: IMEventMsg): Unit = {
+// this._latestIMEventOriginalID = imEvent.getOriginalID
+// }
+
+ private[this] def updateLatestIMEventStateFrom(imEvent: IMEventMsg) {
+ this._latestIMEventOriginalID = imEvent.getOriginalID
+ this._latestIMEventOccurredMillis = imEvent.getOccurredMillis
+ this._imMsgCount += 1
}
- def onActorProviderConfigured(event: ActorProviderConfigured): Unit = {
+ private[this] def updateLatestResourceEventIDFrom(rcEvent: ResourceEventMsg): Unit = {
+ this._latestResourceEventOriginalID = rcEvent.getOriginalID
}
- private[this] def _getAgreementNameForNewUser(imEvent: IMEventModel): String = {
- // FIXME: Implement based on the role
- "default"
+ /**
+ * Creates the initial state that is related to IMEvents.
+ *
+ * @return `true` if there was a user CREATE event
+ */
+ private[this] def initializeStateOfIMEvents(): Boolean = {
+ DEBUG("initializeStateOfIMEvents()")
+
+ // NOTE: this._userID is already set up our caller
+ var _imcounter = 0
+
+ aquarium.imEventStore.foreachIMEventInOccurrenceOrder(this._userID) { imEvent ⇒
+ _imcounter += 1
+ DEBUG("Replaying [%s] %s", _imcounter, imEvent)
+
+ if(_imcounter == 1 && !MessageHelpers.isIMEventCreate(imEvent)) {
+ // The very first event must be a CREATE event. Otherwise we abort initialization.
+ // This will normally happen during devops :)
+ INFO("Ignoring first %s since it is not CREATE", shortClassNameOf(imEvent))
+ false
+ }
+ else {
+ updateAgreementHistoryFrom(imEvent)
+ true
+ }
+ }
}
- def onProcessIMEvent(event: ProcessIMEvent): Unit = {
+ private[this] def loadUserStateAndUpdateAgreementHistory(): Unit = {
+ assert(this.haveAgreements, "this.haveAgreements")
+
+ if(!haveUserStateBootstrap) {
+ this._userStateBootstrap = aquarium.getUserStateBootstrap(this._userCreationIMEvent)
+ }
+ logger.debug("#### this._userStateBootStrap %s".format(this._userStateBootstrap.toString))
val now = TimeHelpers.nowMillis()
+ this._userState = chargingService.replayMonthChargingUpTo(
+ BillingMonthInfo.fromMillis(now),
+ now,
+ this._userStateBootstrap,
+ aquarium.currentResourceTypesMap,
+ aquarium.userStateStore.insertUserState
+ )
+
+ // Final touch: Update agreement history in the working user state.
+ // The assumption is that all agreement changes go via IMEvents, so the
+ // state this._workingAgreementHistory is always the authoritative source.
+ if(haveUserState) {
+ this._userState.userAgreementHistoryModel = this._userAgreementHistoryModel
+ DEBUG("Computed working user state %s", AvroHelpers.jsonStringOfSpecificRecord(this._userState.msg))
+ }
+ }
- val imEvent = event.imEvent
- val hadIMState = _haveIMState
+ private[this] def initializeStateOfResourceEvents(): Unit = {
+ DEBUG("initializeStateOfResourceEvents()")
+ assert(haveAgreements)
- if(hadIMState) {
- val newOccurredMillis = imEvent.occurredMillis
- val currentOccurredMillis = this._imState.imEvent.occurredMillis
+ // We will also need this functionality when receiving IMEvents, so we place it in a method
+ loadUserStateAndUpdateAgreementHistory()
- if(newOccurredMillis < currentOccurredMillis) {
- INFO(
- "Ignoring older IMEvent: [%s] < [%s]",
- new MutableDateCalc(newOccurredMillis).toYYYYMMDDHHMMSSSSS,
- new MutableDateCalc(currentOccurredMillis).toYYYYMMDDHHMMSSSSS)
+ if(haveUserState) {
+ DEBUG("Initial working user state %s", AvroHelpers.jsonStringOfSpecificRecord(this._userState.msg))
+ logSeparator()
+ }
+ }
- return
- }
+ /**
+ * Initializes the actor state from DB.
+ */
+ def initializeUserActorState(userID: String): Boolean = {
+ this._userID = userID
+
+ if(initializeStateOfIMEvents()) {
+ initializeStateOfResourceEvents()
+ // Even if we have no resource events, the user is at least CREATEd
+ true
+ }
+ else {
+ false
+ }
+ }
+
+ def createUserStateBootstrap(imEvent: IMEventMsg) {
+ assert(MessageHelpers.isIMEventCreate(imEvent), "MessageHelpers.isIMEventCreate(imEvent)")
+ assert(this._userCreationIMEvent == imEvent, "this._userCreationIMEvent == imEvent")
+
+ this._userStateBootstrap = aquarium.getUserStateBootstrap(this._userCreationIMEvent)
+ }
+
+ /**
+ * Processes [[gr.grnet.aquarium.message.avro.gen.IMEventMsg]]s that come directly from the
+ * messaging hub (rabbitmq).
+ */
+ def onIMEventMsg(imEvent: IMEventMsg) {
+ if(!haveAgreements) {
+ // If we have no agreements so far, then it does not matter what kind of event
+ // this is. So we replay the log (ehm.. store)
+ initializeUserActorState(imEvent.getUserID)
+
+ return
}
- this._imState = IMStateSnapshot(imEvent)
- DEBUG("%s %s", if(hadIMState) "Update" else "Set", shortClassNameOf(this._imState))
+ // Check for out of sync (regarding IMEvents)
+ val isOutOfSyncIM = imEvent.getOccurredMillis < this._latestIMEventOccurredMillis
+ if(isOutOfSyncIM) {
+ // clear all resource state
+ // FIXME implement
+
+ return
+ }
+
+ // Check out of sync (regarding ResourceEvents)
+ val isOutOfSyncRC = false // FIXME implement
+ if(isOutOfSyncRC) {
+ // TODO
+
+ return
+ }
+
+ // OK, seems good
+ assert(!MessageHelpers.isIMEventCreate(imEvent), "!MessageHelpers.isIMEventCreate(imEvent)")
+ updateAgreementHistoryFrom(imEvent)
}
- def onGetUserBalanceRequest(event: GetUserBalanceRequest): Unit = {
- val userId = event.userID
- // FIXME: Implement
- self reply GetUserBalanceResponse(userId, Right(_userState.creditsSnapshot.creditAmount))
+ def onResourceEventMsg(rcEvent: ResourceEventMsg) {
+ if(!haveAgreements) {
+ DEBUG("No agreement. Ignoring %s", rcEvent)
+
+ return
+ }
+
+ val now = TimeHelpers.nowMillis()
+ // TODO: Review this and its usage in user state.
+ // TODO: The assumption is that the resource set increases all the time,
+ // TODO: so the current map contains everything ever known (assuming we do not run backwards in time).
+ val currentResourcesMap = aquarium.currentResourceTypesMap
+
+ val nowBillingMonthInfo = BillingMonthInfo.fromMillis(now)
+ val nowYear = nowBillingMonthInfo.year
+ val nowMonth = nowBillingMonthInfo.month
+
+ val eventOccurredMillis = rcEvent.getOccurredMillis
+ val eventBillingMonthInfo = BillingMonthInfo.fromMillis(eventOccurredMillis)
+ val eventYear = eventBillingMonthInfo.year
+ val eventMonth = eventBillingMonthInfo.month
+
+ def computeBatch(): Unit = {
+ DEBUG("Going for out of sync charging for %s", rcEvent.getOriginalID)
+ this._userState = chargingService.replayMonthChargingUpTo(
+ nowBillingMonthInfo,
+ // Take into account that the event may be out-of-sync.
+ // TODO: Should we use this._latestResourceEventOccurredMillis instead of now?
+ now max eventOccurredMillis,
+ this._userStateBootstrap,
+ currentResourcesMap,
+ stdUserStateStoreFunc
+ )
+
+ updateLatestResourceEventIDFrom(rcEvent)
+ }
+
+ def computeRealtime(): Unit = {
+ DEBUG("Going for in sync charging for %s", rcEvent.getOriginalID)
+ chargingService.processResourceEvent(
+ rcEvent,
+ this._userState,
+ nowBillingMonthInfo,
+ true
+ )
+
+ updateLatestResourceEventIDFrom(rcEvent)
+ }
+
+ val oldTotalCredits =
+ if(this._userState!=null)
+ this._userState.totalCredits
+ else
+ 0.0D
+ // FIXME check these
+ if(this._userState eq null) {
+ computeBatch()
+ }
+ else if(nowYear != eventYear || nowMonth != eventMonth) {
+ DEBUG(
+ "nowYear(%s) != eventYear(%s) || nowMonth(%s) != eventMonth(%s)",
+ nowYear, eventYear,
+ nowMonth, eventMonth
+ )
+ computeBatch()
+ }
+ else if(this._userState.latestResourceEventOccurredMillis < rcEvent.getOccurredMillis) {
+ DEBUG("this._workingUserState.latestResourceEventOccurredMillis < rcEvent.occurredMillis")
+ DEBUG(
+ "%s < %s",
+ TimeHelpers.toYYYYMMDDHHMMSSSSS(this._userState.latestResourceEventOccurredMillis),
+ TimeHelpers.toYYYYMMDDHHMMSSSSS(rcEvent.getOccurredMillis)
+ )
+ computeRealtime()
+ }
+ else {
+ DEBUG("OUT OF ORDER! this._workingUserState.latestResourceEventOccurredMillis=%s and rcEvent.occurredMillis=%s",
+ TimeHelpers.toYYYYMMDDHHMMSSSSS(this._userState.latestResourceEventOccurredMillis),
+ TimeHelpers.toYYYYMMDDHHMMSSSSS(rcEvent.getOccurredMillis))
+
+ computeBatch()
+ }
+ val newTotalCredits = this._userState.totalCredits
+ if(oldTotalCredits * newTotalCredits < 0)
+ aquarium.eventBus ! new BalanceEvent(this._userState.userID,
+ newTotalCredits>=0)
+ DEBUG("Updated %s", this._userState)
+ logSeparator()
}
- def onGetUserStateRequest(event: GetUserStateRequest): Unit = {
- val userId = event.userID
- // FIXME: Implement
- self reply GetUserStateResponse(userId, Right(this._userState))
+ def onGetUserBillRequest(event: GetUserBillRequest): Unit = {
+ try{
+ val timeslot = event.timeslot
+ val resourceTypes = aquarium.policyStore.
+ loadSortedPolicyModelsWithin(timeslot.from.getTime,
+ timeslot.to.getTime).
+ values.headOption match {
+ case None => Map[String,ResourceType]()
+ case Some(policy:PolicyModel) => policy.resourceTypesMap
+ }
+ val state= if(haveUserState) Some(this._userState.msg) else None
+ val billEntryMsg = BillEntryMsg.fromWorkingUserState(timeslot,this._userID,state,resourceTypes)
+ //val billEntryMsg = MessageFactory.createBillEntryMsg(billEntry)
+ //logger.debug("BILL ENTRY MSG: " + billEntryMsg.toString)
+ val billData = GetUserBillResponseData(this._userID,billEntryMsg)
+ sender ! GetUserBillResponse(Right(billData))
+ } catch {
+ case e:Exception =>
+ e.printStackTrace()
+ sender ! GetUserBillResponse(Left("Internal Server Error [AQU-BILL-0001]"), 500)
+ }
}
- def onProcessResourceEvent(event: ProcessResourceEvent): Unit = {
- val rcEvent = event.rcEvent
+ def onGetUserBalanceRequest(event: GetUserBalanceRequest): Unit = {
+ val userID = event.userID
+
+ (haveAgreements, haveUserState) match {
+ case (true, true) ⇒
+ // (User CREATEd, with balance state)
+ val realtimeMillis = TimeHelpers.nowMillis()
+ chargingService.calculateRealtimeUserState(
+ this._userState,
+ BillingMonthInfo.fromMillis(realtimeMillis),
+ realtimeMillis
+ )
+
+ sender ! GetUserBalanceResponse(Right(GetUserBalanceResponseData(this._userID, this._userState.totalCredits)))
+
+ case (true, false) ⇒
+ // (User CREATEd, no balance state)
+ // Return the default initial balance
+ sender ! GetUserBalanceResponse(
+ Right(
+ GetUserBalanceResponseData(
+ this._userID,
+ aquarium.initialUserBalance(this._userCreationIMEvent.getRole, this._userCreationIMEvent.getOccurredMillis)
+ )))
+
+ case (false, true) ⇒
+ // (Not CREATEd, with balance state)
+ // Clearly this is internal error
+ sender ! GetUserBalanceResponse(Left("Internal Server Error [AQU-BAL-0001]"), 500)
+
+ case (false, false) ⇒
+ // (Not CREATEd, no balance state)
+ // The user is completely unknown
+ sender ! GetUserBalanceResponse(Left("Unknown user %s [AQU-BAL-0004]".format(userID)), 404/*Not found*/)
+ }
+ }
- logger.info("Got\n{}", rcEvent.toJsonString)
+ def onGetUserStateRequest(event: GetUserStateRequest): Unit = {
+ haveUserState match {
+ case true ⇒
+ val realtimeMillis = TimeHelpers.nowMillis()
+ chargingService.calculateRealtimeUserState(
+ this._userState,
+ BillingMonthInfo.fromMillis(realtimeMillis),
+ realtimeMillis
+ )
+
+ sender ! GetUserStateResponse(Right(this._userState.msg))
+
+ case false ⇒
+ sender ! GetUserStateResponse(Left("No state for user %s [AQU-STA-0006]".format(event.userID)), 404)
+ }
}
+ def onGetUserWalletRequest(event: GetUserWalletRequest): Unit = {
+ haveUserState match {
+ case true ⇒
+ DEBUG("haveWorkingUserState: %s", event)
+ val realtimeMillis = TimeHelpers.nowMillis()
+ chargingService.calculateRealtimeUserState(
+ this._userState,
+ BillingMonthInfo.fromMillis(realtimeMillis),
+ realtimeMillis
+ )
+
+ sender ! GetUserWalletResponse(
+ Right(
+ GetUserWalletResponseData(
+ this._userID,
+ this._userState.totalCredits,
+ MessageFactory.newWalletEntriesMsg(this._userState.msg.getWalletEntries)
+ )))
+
+ case false ⇒
+ DEBUG("!haveWorkingUserState: %s", event)
+ haveAgreements match {
+ case true ⇒
+ DEBUG("haveAgreements: %s", event)
+ sender ! GetUserWalletResponse(
+ Right(
+ GetUserWalletResponseData(
+ this._userID,
+ aquarium.initialUserBalance(this._userCreationIMEvent.getRole, this._userCreationIMEvent.getOccurredMillis),
+ MessageFactory.newWalletEntriesMsg()
+ )))
+
+ case false ⇒
+ DEBUG("!haveUserCreationIMEvent: %s", event)
+ sender ! GetUserWalletResponse(Left("No wallet for user %s [AQU-WAL-00 8]".format(event.userID)), 404)
+ }
+ }
+ }
private[this] def D_userID = {
- if(this._userState eq null)
- if(this._imState eq null)
- "<NOT INITIALIZED>"
- else
- this._imState.imEvent.userID
- else
- this._userState.userID
+ this._userID
}
private[this] def DEBUG(fmt: String, args: Any*) =
- logger.debug("UserActor[%s]: %s".format(D_userID, fmt.format(args: _*)))
+ logger.debug("[%s] - %s".format(D_userID, fmt.format(args: _*)))
private[this] def INFO(fmt: String, args: Any*) =
- logger.info("UserActor[%s]: %s".format(D_userID, fmt.format(args: _*)))
+ logger.info("[%s] - %s".format(D_userID, fmt.format(args: _*)))
private[this] def WARN(fmt: String, args: Any*) =
- logger.warn("UserActor[%s]: %s".format(D_userID, fmt.format(args: _*)))
+ logger.warn("[%s] - %s".format(D_userID, fmt.format(args: _*)))
private[this] def ERROR(fmt: String, args: Any*) =
- logger.error("UserActor[%s]: %s".format(D_userID, fmt.format(args: _*)))
+ logger.error("[%s] - %s".format(D_userID, fmt.format(args: _*)))
private[this] def ERROR(t: Throwable, fmt: String, args: Any*) =
- logger.error("UserActor[%s]: %s".format(D_userID, fmt.format(args: _*)), t)
+ logger.error("[%s] - %s".format(D_userID, fmt.format(args: _*)), t)
}
projects / aquarium / blobdiff