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36 package gr.grnet.aquarium.service
38 import com.ckkloverdos.props.Props
39 import akka.actor.ActorRef
40 import gr.grnet.aquarium.Configurable
41 import java.util.concurrent.ConcurrentHashMap
42 import gr.grnet.aquarium.util.Loggable
43 import gr.grnet.aquarium.util.date.TimeHelpers
44 import gr.grnet.aquarium.actor.message.config.{AquariumPropertiesLoaded, ActorProviderConfigured}
45 import gr.grnet.aquarium.actor._
49 * All actors are provided locally.
51 * @author Christos KK Loverdos <loverdos@gmail.com>.
53 class SimpleLocalRoleableActorProviderService extends RoleableActorProviderService with Configurable with Loggable {
54 private[this] val actorCache = new ConcurrentHashMap[ActorRole, ActorRef]
55 private[this] var _props: Props = _
57 def configure(props: Props): Unit = {
59 logger.debug("Configured with props")
62 private[this] def __doStart(): Unit = {
63 // Start and configure actors
64 import SimpleLocalRoleableActorProviderService.RolesToBeStarted
66 for(role <- RolesToBeStarted) {
73 val (ms0, ms1, _) = TimeHelpers.timed {
80 logStopped(TimeHelpers.nowMillis(), TimeHelpers.nowMillis())
83 private[this] def _newActor(role: ActorRole): ActorRef = {
84 val actorRef = akka.actor.Actor.actorOf(role.actorType).start()
86 val propsMsg = AquariumPropertiesLoaded(this._props)
87 if(role.canHandleConfigurationMessage(propsMsg)) {
91 val providerMsg = ActorProviderConfigured(this)
92 if(role.canHandleConfigurationMessage(providerMsg)) {
93 actorRef ! providerMsg
99 private[this] def _fromCacheOrNew(role: ActorRole): ActorRef = synchronized {
100 actorCache.get(role) match {
102 val actorRef = _newActor(role)
103 actorCache.put(role, actorRef)
110 @throws(classOf[Exception])
111 def actorForRole(role: ActorRole, hints: Props = Props.empty) = synchronized {
112 if(role.isCacheable) {
113 _fromCacheOrNew(role)
119 override def toString = gr.grnet.aquarium.util.shortClassNameOf(this)
122 object SimpleLocalRoleableActorProviderService {
123 // Always set Dispatcher at the end.
124 // We could definitely use some automatic dependency sorting here (topological sorting anyone?)
125 final val RolesToBeStarted = List(
126 // ResourceProcessorRole,
131 lazy val ActorClassByRole: Map[ActorRole, Class[_ <: RoleableActor]] =
132 RolesToBeStarted map {
134 (role, role.actorType)
137 lazy val ActorRefByRole: Map[ActorRole, ActorRef] =
138 ActorClassByRole map {
140 (role, akka.actor.Actor.actorOf(clazz).start())