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36 package gr.grnet.aquarium.actor
40 import gr.grnet.aquarium.util.shortClassNameOf
41 import gr.grnet.aquarium.service.RoleableActorProviderService
42 import akka.actor.ActorRef
43 import user.{UserActorCache, UserActorSupervisor}
44 import message.config.{AquariumPropertiesLoaded, ActorProviderConfigured}
45 import gr.grnet.aquarium.actor.message.event.{ProcessResourceEvent, ProcessIMEvent}
46 import gr.grnet.aquarium.actor.message.admin.PingAllRequest
47 import gr.grnet.aquarium.actor.message.{UserActorRequestMessage, GetUserStateRequest, GetUserBalanceRequest}
48 import gr.grnet.aquarium.{AquariumException, AquariumInternalError}
51 * Business logic router. Incoming messages are routed to appropriate destinations. Replies are routed back
54 * @author Christos KK Loverdos <loverdos@gmail.com>.
56 class RouterActor extends ReflectiveRoleableActor {
57 private[this] var _actorProvider: RoleableActorProviderService = _
61 private[this] def _launchUserActor(userID: String): ActorRef = {
62 // create a fresh instance
63 val userActor = _actorProvider.actorForRole(UserActorRole)
64 UserActorCache.put(userID, userActor)
65 UserActorSupervisor.supervisor.link(userActor)
70 private[this] def _findOrCreateUserActor(userID: String): ActorRef = {
71 UserActorCache.get(userID) match {
72 case Some(userActorRef) ⇒
76 _launchUserActor(userID)
80 private[this] def _forwardToUserActor(userID: String, m: UserActorRequestMessage): Unit = {
81 _findOrCreateUserActor(userID) forward m
86 * Handles an exception that occurred while servicing a message.
90 * @param servicingMessage
91 * The message that was being served while the exception happened.
92 * Note that the message can be `null`, in which case the exception
95 override protected def onThrowable(t: Throwable, servicingMessage: AnyRef) = {
98 def logIgnore(e: Throwable) = {
99 logger.error("Ignoring %s".format(shortClassNameOf(e)), e)
106 case e: AquariumInternalError ⇒
109 case e: AquariumException ⇒
117 def onAquariumPropertiesLoaded(m: AquariumPropertiesLoaded): Unit = {
118 logger.info("Configured with {}", shortClassNameOf(m))
121 def onActorProviderConfigured(m: ActorProviderConfigured): Unit = {
122 this._actorProvider = m.actorProvider
123 logger.info("Configured with {}", shortClassNameOf(m))
126 def onProcessIMEvent(m: ProcessIMEvent): Unit = {
127 _forwardToUserActor(m.imEvent.userID, m)
130 def onGetUserBalanceRequest(m: GetUserBalanceRequest): Unit = {
131 _forwardToUserActor(m.userID, m)
134 def onGetUserStateRequest(m: GetUserStateRequest): Unit = {
135 _forwardToUserActor(m.userID, m)
138 def onProcessResourceEvent(m: ProcessResourceEvent): Unit = {
139 _forwardToUserActor(m.rcEvent.userID, m)
142 def onPingAllRequest(m: PingAllRequest): Unit = {
145 override def postStop = {