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36 package gr.grnet.aquarium.actor
40 import gr.grnet.aquarium.actor._
41 import gr.grnet.aquarium.user._
43 import gr.grnet.aquarium.util.shortClassNameOf
44 import gr.grnet.aquarium.util.chainOfCauses
45 import gr.grnet.aquarium.util.date.TimeHelpers
46 import gr.grnet.aquarium.actor.message.service.router._
47 import message.config.{ActorProviderConfigured, AquariumPropertiesLoaded}
48 import gr.grnet.aquarium.event.im.IMEventModel
49 import akka.config.Supervision.Temporary
50 import gr.grnet.aquarium.{AquariumException, Configurator}
55 * @author Christos KK Loverdos <loverdos@gmail.com>
58 class UserActor extends ReflectiveRoleableActor {
59 private[this] var _userID: String = _
60 private[this] var _userState: UserState = _
62 self.lifeCycle = Temporary
64 private[this] def _shutmedown(): Unit = {
66 UserActorCache.invalidate(this._userID)
72 override protected def onThrowable(t: Throwable, message: AnyRef) = {
74 ERROR(t, "Terminating due to: %s(%s)", shortClassNameOf(t), t.getMessage)
79 def role = UserActorRole
81 private[this] def _configurator: Configurator = Configurator.MasterConfigurator
82 // private[this] def _userId = _userState.userId
84 private[this] def _timestampTheshold =
85 _configurator.props.getLong(Configurator.Keys.user_state_timestamp_threshold).getOr(10000)
88 private[this] def _haveFullState = {
89 (this._userID ne null) && (this._userState ne null)
92 private[this] def _havePartialState = {
93 (this._userID ne null) && (this._userState eq null)
97 def onAquariumPropertiesLoaded(event: AquariumPropertiesLoaded): Unit = {
100 def onActorProviderConfigured(event: ActorProviderConfigured): Unit = {
103 private[this] def _getAgreementNameForNewUser(imEvent: IMEventModel): String = {
104 // FIXME: Implement based on the role
108 private[this] def processCreateUser(imEvent: IMEventModel): Unit = {
109 this._userID = imEvent.userID
111 val store = _configurator.storeProvider.userStateStore
112 // try find user state. normally should ot exist
113 val latestUserStateOpt = store.findLatestUserStateByUserID(this._userID)
114 if(latestUserStateOpt.isDefined) {
115 logger.error("Got %s(%s, %s) but user already exists. Ingoring".format(
117 shortClassNameOf(imEvent),
123 val initialAgreementName = _getAgreementNameForNewUser(imEvent)
124 val newUserState = DefaultUserStateComputations.createInitialUserState(
126 imEvent.occurredMillis,
130 initialAgreementName)
132 this._userState = newUserState
134 // FIXME: If this fails, then the actor must be shut down.
135 store.insertUserState(newUserState)
138 private[this] def processModifyUser(imEvent: IMEventModel): Unit = {
139 val now = TimeHelpers.nowMillis()
141 if(!_haveFullState) {
142 ERROR("Got %s(%s) but have no state. Shutting down", shortClassNameOf(imEvent), imEvent.eventType)
147 this._userState = this._userState.modifyFromIMEvent(imEvent, now)
150 def onProcessSetUserID(event: ProcessSetUserID): Unit = {
151 this._userID = event.userID
154 def onProcessIMEvent(event: ProcessIMEvent): Unit = {
155 val now = TimeHelpers.nowMillis()
157 val imEvent = event.imEvent
158 // If we already have a userID but it does not match the incoming userID, then this is an internal error
159 if(_havePartialState && (this._userID != imEvent.userID)) {
160 throw new AquariumException("Got userID = %s but already have userID = %s".format(imEvent.userID, this._userID))
163 // If we get an IMEvent without having a user state, then we query for the latest user state.
164 if(!_haveFullState) {
165 val userStateOpt = _configurator.userStateStore.findLatestUserStateByUserID(this._userID)
166 this._userState = userStateOpt match {
167 case Some(userState) ⇒
171 val initialAgreementName = _getAgreementNameForNewUser(imEvent)
172 val initialUserState = DefaultUserStateComputations.createInitialUserState(
174 imEvent.occurredMillis,
178 initialAgreementName)
180 DEBUG("Got initial state")
185 if(imEvent.isModifyUser && this._userState.isInitial) {
186 INFO("Got a '%s' but have not received '%s' yet", imEvent.eventType, IMEventModel.EventTypeNames.create)
190 if(imEvent.isCreateUser && !this._userState.isInitial) {
191 INFO("Got a '%s' but my state is not initial", imEvent.eventType)
195 this._userState = this._userState.modifyFromIMEvent(imEvent, now)
197 if(imEvent.isCreateUser) {
198 processCreateUser(imEvent)
199 } else if(imEvent.isModifyUser) {
200 processModifyUser(imEvent)
202 throw new AquariumException("Cannot interpret %s".format(imEvent))
206 def onRequestUserBalance(event: RequestUserBalance): Unit = {
207 val userId = event.userID
208 // FIXME: Implement threshold
209 self reply UserResponseGetBalance(userId, _userState.creditsSnapshot.creditAmount)
212 def onUserRequestGetState(event: UserRequestGetState): Unit = {
213 val userId = event.userID
215 self reply UserResponseGetState(userId, this._userState)
218 def onProcessResourceEvent(event: ProcessResourceEvent): Unit = {
222 private[this] def D_userID = {
223 if(this._userID eq null)
224 "<NOT INITIALIZED>" // We always get a userID first
226 if(this._userState eq null)
227 "%s, NO STATE".format(this._userID)
229 "%s".format(this._userID)
232 private[this] def DEBUG(fmt: String, args: Any*) =
233 logger.debug("UserActor[%s]: %s".format(D_userID, fmt.format(args: _*)))
235 private[this] def INFO(fmt: String, args: Any*) =
236 logger.info("UserActor[%s]: %s".format(D_userID, fmt.format(args: _*)))
238 private[this] def WARN(fmt: String, args: Any*) =
239 logger.warn("UserActor[%s]: %s".format(D_userID, fmt.format(args: _*)))
241 private[this] def ERROR(fmt: String, args: Any*) =
242 logger.error("UserActor[%s]: %s".format(D_userID, fmt.format(args: _*)))
244 private[this] def ERROR(t: Throwable, fmt: String, args: Any*) =
245 logger.error("UserActor[%s]: %s".format(D_userID, fmt.format(args: _*)), t)