package service
package user
-import com.ckkloverdos.maybe.{Failed, NoVal, Just}
-
import gr.grnet.aquarium.actor._
-import gr.grnet.aquarium.Configurator
-import gr.grnet.aquarium.user._
-import gr.grnet.aquarium.util.shortClassNameOf
+import akka.config.Supervision.Temporary
+import gr.grnet.aquarium.Aquarium
+import gr.grnet.aquarium.util.{shortClassNameOf, shortNameOfClass}
+import gr.grnet.aquarium.actor.message.event.{ProcessResourceEvent, ProcessIMEvent}
+import gr.grnet.aquarium.computation.data.IMStateSnapshot
+import gr.grnet.aquarium.event.model.im.IMEventModel
+import gr.grnet.aquarium.actor.message.config.{InitializeUserState, ActorProviderConfigured, AquariumPropertiesLoaded}
+import gr.grnet.aquarium.actor.message.{GetUserBalanceResponseData, GetUserBalanceResponse, GetUserStateRequest, GetUserBalanceRequest}
+import gr.grnet.aquarium.computation.{BillingMonthInfo, UserStateBootstrappingData, UserState}
import gr.grnet.aquarium.util.date.TimeHelpers
-import gr.grnet.aquarium.logic.accounting.RoleAgreements
-import gr.grnet.aquarium.actor.message.service.router._
-import message.config.{ActorProviderConfigured, AquariumPropertiesLoaded}
-import gr.grnet.aquarium.event.im.IMEventModel
-
+import gr.grnet.aquarium.logic.accounting.Policy
+import gr.grnet.aquarium.computation.reason.InitialUserStateSetup
/**
*
* @author Christos KK Loverdos <loverdos@gmail.com>
*/
-class UserActor extends ReflectiveAquariumActor {
+class UserActor extends ReflectiveRoleableActor {
+ private[this] var _userID: String = "<?>"
+ private[this] var _imState: IMStateSnapshot = _
private[this] var _userState: UserState = _
+ self.lifeCycle = Temporary
+
+ private[this] def _shutmedown(): Unit = {
+ if(_haveUserState) {
+ UserActorCache.invalidate(_userID)
+ }
+
+ self.stop()
+ }
+
+ override protected def onThrowable(t: Throwable, message: AnyRef) = {
+ logChainOfCauses(t)
+ ERROR(t, "Terminating due to: %s(%s)", shortClassNameOf(t), t.getMessage)
+
+ _shutmedown()
+ }
+
def role = UserActorRole
- private[this] def _configurator: Configurator = Configurator.MasterConfigurator
-// private[this] def _userId = _userState.userId
+ private[this] def aquarium: Aquarium = Aquarium.Instance
+ private[this] def userStateComputations = aquarium.userStateComputations
- private[this] def _timestampTheshold =
- _configurator.props.getLong(Configurator.Keys.user_state_timestamp_threshold).getOr(10000)
+ private[this] def _timestampTheshold = {
+ aquarium.props.getLong(Aquarium.Keys.user_state_timestamp_threshold).getOr(10000)
+ }
+ private[this] def _haveUserState = {
+ this._userState ne null
+ }
+
+ private[this] def _haveIMState = {
+ this._imState ne null
+ }
def onAquariumPropertiesLoaded(event: AquariumPropertiesLoaded): Unit = {
}
def onActorProviderConfigured(event: ActorProviderConfigured): Unit = {
}
- private[this] def _computeAgreementForNewUser(imEvent: IMEventModel): String = {
- // FIXME: Implement based on the role
- "default"
+ private[this] def createIMState(event: InitializeUserState): Unit = {
+ val userID = event.userID
+ val store = aquarium.imEventStore
+ // TODO: Optimization: Since IMState only records roles, we should incrementally
+ // TODO: built it only for those IMEvents that changed the role.
+ store.replayIMEventsInOccurrenceOrder(userID) { imEvent ⇒
+ logger.debug("Replaying %s".format(imEvent))
+
+ val newState = this._imState match {
+ case null ⇒
+ IMStateSnapshot.initial(imEvent)
+
+ case currentState ⇒
+ currentState.updateHistoryWithEvent(imEvent)
+ }
+
+ this._imState = newState
+ }
+
+ DEBUG("Recomputed %s = %s", shortNameOfClass(classOf[IMStateSnapshot]), this._imState)
+ }
+
+ /**
+ * Resource events are processed only if the user has been activated.
+ */
+ private[this] def shouldProcessResourceEvents: Boolean = {
+ _haveIMState && this._imState.hasBeenActivated
}
- private[this] def processCreateUser(imEvent: IMEventModel): Unit = {
- val userID = imEvent.userID
- val store = _configurator.storeProvider.userStateStore
- // try find user state. normally should ot exist
- val latestUserStateOpt = store.findLatestUserStateByUserID(userID)
- if(latestUserStateOpt.isDefined) {
- logger.error("Got %s(%s, %s) but user already exists. Ingoring".format(
- userID,
- shortClassNameOf(imEvent),
- imEvent.eventType))
+ private[this] def createUserState(event: InitializeUserState): Unit = {
+ val userID = event.userID
+ val referenceTime = event.referenceTimeMillis
+ if(!_haveIMState) {
+ // Should have been created from `createIMState()`
+ DEBUG("Cannot create user state from %s, since %s = %s", event, shortNameOfClass(classOf[IMStateSnapshot]), this._imState)
return
}
- val initialAgreementName = _computeAgreementForNewUser(imEvent)
- val newUserState = DefaultUserStateComputations.createInitialUserState(
- userID,
- imEvent.occurredMillis,
- imEvent.isActive,
- 0.0,
- List(imEvent.role),
- initialAgreementName)
-
- this._userState = newUserState
+ if(!this._imState.hasBeenActivated) {
+ // Cannot set the initial state!
+ DEBUG("Cannot create user state from %s, since user is inactive", event)
+ return
+ }
- // FIXME: If this fails, then the actor must be shut down.
- store.insertUserState(newUserState)
+ val userActivationMillis = this._imState.userActivationMillis.get
+ val initialRole = this._imState.roleHistory.firstRole.get.name
+
+ val userStateBootstrap = UserStateBootstrappingData(
+ this._userID,
+ userActivationMillis,
+ initialRole,
+ aquarium.initialAgreementForRole(initialRole, userActivationMillis),
+ aquarium.initialBalanceForRole(initialRole, userActivationMillis)
+ )
+
+ userStateComputations.doFullMonthlyBilling(
+ userStateBootstrap,
+ BillingMonthInfo.fromMillis(TimeHelpers.nowMillis()),
+ aquarium.currentResourcesMap,
+ InitialUserStateSetup,
+ None
+ )
}
- private[this] def processModifyUser(event: IMEventModel): Unit = {
- val now = TimeHelpers.nowMillis()
- val newActive = ActiveStateSnapshot(event.isStateActive, now)
-
- DEBUG("New active status = %s".format(newActive))
+ def onInitializeUserState(event: InitializeUserState): Unit = {
+ val userID = event.userID
+ this._userID = userID
+ DEBUG("Got %s", event)
- this._userState = this._userState.copy(activeStateSnapshot = newActive)
+ createIMState(event)
+ createUserState(event)
}
- def onProcessIMEvent(event: ProcessIMEvent): Unit = {
- val imEvent = event.imEvent
- if(imEvent.isCreateUser) {
- processCreateUser(imEvent)
- } else if(imEvent.isModifyUser) {
- processModifyUser(imEvent)
+ /**
+ * Process [[gr.grnet.aquarium.event.model.im.IMEventModel]]s.
+ * When this method is called, we assume that all proper checks have been made and it
+ * is OK to proceed with the event processing.
+ */
+ def onProcessIMEvent(processEvent: ProcessIMEvent): Unit = {
+ val imEvent = processEvent.imEvent
+
+ if(!_haveIMState) {
+ // This is an error. Should have been initialized from somewhere ...
+ throw new Exception("Got %s while being uninitialized".format(processEvent))
}
- }
- def onRequestUserBalance(event: RequestUserBalance): Unit = {
- val userId = event.userID
- // FIXME: Implement threshold
- self reply UserResponseGetBalance(userId, _userState.creditsSnapshot.creditAmount)
- }
+ if(this._imState.latestIMEvent.id == imEvent.id) {
+ // This happens when the actor is brought to life, then immediately initialized, and then
+ // sent the first IM event. But from the initialization procedure, this IM event will have
+ // already been loaded from DB!
+ INFO("Ignoring first %s after birth", imEvent.toDebugString)
+ return
+ }
- def onUserRequestGetState(event: UserRequestGetState): Unit = {
- val userId = event.userID
- // FIXME: implement
- self reply UserResponseGetState(userId, this._userState)
+ this._imState = this._imState.updateHistoryWithEvent(imEvent)
+
+ INFO("Update %s = %s", shortClassNameOf(this._imState), this._imState)
}
def onProcessResourceEvent(event: ProcessResourceEvent): Unit = {
+ val rcEvent = event.rcEvent
+
+ if(!shouldProcessResourceEvents) {
+ // This means the user has not been activated. So, we do not process any resource event
+ DEBUG("Not processing %s", rcEvent.toJsonString)
+ return
+ }
}
- private[this] def D_userID = {
- this._userState match {
- case null ⇒
- "???"
+ def onGetUserBalanceRequest(event: GetUserBalanceRequest): Unit = {
+ val userID = event.userID
+
+ if(!_haveIMState) {
+ // No IMEvent has arrived, so this user is virtually unknown
+ self reply GetUserBalanceResponse(Left("User not found"), 404/*Not found*/)
+ }
+ else if(!_haveUserState) {
+ // The user is known but we have no state.
+ // Ridiculous. Should have been created at least during initialization.
+ }
- case userState ⇒
- userState.userID
+ if(!_haveUserState) {
+ self reply GetUserBalanceResponse(Left("Not found"), 404/*Not found*/)
+ } else {
+ self reply GetUserBalanceResponse(Right(GetUserBalanceResponseData(userID, this._userState.totalCredits)))
}
}
+
+ def onGetUserStateRequest(event: GetUserStateRequest): Unit = {
+ val userId = event.userID
+ // FIXME: Implement
+// self reply GetUserStateResponse(userId, Right(this._userState))
+ }
+
+ private[this] def D_userID = {
+ this._userID
+ }
+
private[this] def DEBUG(fmt: String, args: Any*) =
- logger.debug("UserActor[%s]: %s".format(D_userID, fmt.format(args: _*)))
+ logger.debug("User[%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("User[%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("User[%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("User[%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("User[%s]: %s".format(D_userID, fmt.format(args: _*)), t)
}
projects / aquarium / blobdiff