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36 package gr.grnet.aquarium.store.memory
38 import com.ckkloverdos.props.Props
39 import com.ckkloverdos.maybe.Just
40 import gr.grnet.aquarium.store._
41 import scala.collection.JavaConversions._
42 import collection.mutable.ConcurrentMap
43 import java.util.concurrent.ConcurrentHashMap
44 import gr.grnet.aquarium.Configurable
45 import gr.grnet.aquarium.event.model.im.{StdIMEvent, IMEventModel}
46 import org.bson.types.ObjectId
47 import gr.grnet.aquarium.event.model.resource.{StdResourceEvent, ResourceEventModel}
48 import gr.grnet.aquarium.computation.state.UserState
49 import gr.grnet.aquarium.util.Tags
50 import gr.grnet.aquarium.computation.BillingMonthInfo
51 import gr.grnet.aquarium.policy.{PolicyModel, StdPolicy}
52 import collection.immutable.SortedMap
53 import gr.grnet.aquarium.logic.accounting.dsl.Timeslot
56 * An implementation of various stores that persists parts in memory.
58 * This is just for testing purposes.
60 * @author Christos KK Loverdos <loverdos@gmail.com>
61 * @author Georgios Gousios <gousiosg@gmail.com>
62 * @author Prodromos Gerakios <grnet.gr>
65 class MemStoreProvider
70 with ResourceEventStore
73 override type IMEvent = MemIMEvent
74 override type ResourceEvent = MemResourceEvent
75 override type Policy = StdPolicy
77 private[this] var _userStates = List[UserState]()
78 private[this] var _policies = List[Policy]()
79 private[this] var _resourceEvents = List[ResourceEvent]()
81 private[this] val imEventById: ConcurrentMap[String, MemIMEvent] = new ConcurrentHashMap[String, MemIMEvent]()
84 def propertyPrefix = None
86 def configure(props: Props) = {
89 override def toString = {
91 Tags.UserStateTag -> _userStates.size,
92 Tags.ResourceEventTag -> _resourceEvents.size,
93 Tags.IMEventTag -> imEventById.size,
94 "PolicyEntry" -> _policies.size
97 "MemStoreProvider(%s)" format map
101 def userStateStore = this
103 def resourceEventStore = this
105 def imEventStore = this
107 def policyStore = this
112 def insertUserState(userState: UserState): UserState = {
113 _userStates = userState.copy(_id = new ObjectId().toString) :: _userStates
117 def findUserStateByUserID(userID: String) = {
118 _userStates.find(_.userID == userID)
121 def findLatestUserStateForFullMonthBilling(userID: String, bmi: BillingMonthInfo): Option[UserState] = {
122 val goodOnes = _userStates.filter(_.theFullBillingMonth.isDefined).filter { userState ⇒
123 val f1 = userState.userID == userID
124 val f2 = userState.isFullBillingMonthState
125 val bm = userState.theFullBillingMonth.get
133 us1.occurredMillis > us2.occurredMillis
143 //+ ResourceEventStore
144 def createResourceEventFromOther(event: ResourceEventModel): ResourceEvent = {
145 if(event.isInstanceOf[MemResourceEvent]) event.asInstanceOf[MemResourceEvent]
148 new StdResourceEvent(
163 override def clearResourceEvents() = {
164 _resourceEvents = Nil
167 def pingResourceEventStore(): Unit = {
168 // We are always live and kicking...
171 def insertResourceEvent(event: ResourceEventModel) = {
172 val localEvent = createResourceEventFromOther(event)
173 _resourceEvents ::= localEvent
177 def findResourceEventByID(id: String) = {
178 _resourceEvents.find(ev ⇒ ev.id == id)
181 def findResourceEventsByUserID(userId: String)
182 (sortWith: Option[(ResourceEvent, ResourceEvent) => Boolean]): List[ResourceEvent] = {
183 val byUserId = _resourceEvents.filter(_.userID == userId).toArray
184 val sorted = sortWith match {
186 byUserId.sortWith(sorter)
194 def countOutOfSyncResourceEventsForBillingPeriod(userID: String, startMillis: Long, stopMillis: Long): Long = {
195 _resourceEvents.filter { case ev ⇒
196 ev.userID == userID &&
197 // out of sync events are those that were received in the billing month but occurred in previous (or next?)
199 ev.isOutOfSyncForBillingPeriod(startMillis, stopMillis)
202 //- ResourceEventStore
204 def foreachResourceEventOccurredInPeriod(
208 )(f: ResourceEvent ⇒ Unit): Unit = {
209 _resourceEvents.filter { case ev ⇒
210 ev.userID == userID &&
211 ev.isOccurredWithinMillis(startMillis, stopMillis)
216 def createIMEventFromJson(json: String) = {
217 StdIMEvent.fromJsonString(json)
220 def createIMEventFromOther(event: IMEventModel) = {
221 StdIMEvent.fromOther(event)
224 def pingIMEventStore(): Unit = {
228 def insertIMEvent(event: IMEventModel) = {
229 val localEvent = createIMEventFromOther(event)
230 imEventById += (event.id -> localEvent)
234 def findIMEventByID(id: String) = imEventById.get(id)
238 * Find the `CREATE` even for the given user. Note that there must be only one such event.
240 def findCreateIMEventByUserID(userID: String): Option[IMEvent] = {
241 imEventById.valuesIterator.filter { e ⇒
242 e.userID == userID && e.isCreateUser
243 }.toList.sortWith { case (e1, e2) ⇒
244 e1.occurredMillis < e2.occurredMillis
248 def findLatestIMEventByUserID(userID: String): Option[IMEvent] = {
249 imEventById.valuesIterator.filter(_.userID == userID).toList.sortWith {
251 us1.occurredMillis > us2.occurredMillis
256 * Scans events for the given user, sorted by `occurredMillis` in ascending order and runs them through
257 * the given function `f`.
259 * Any exception is propagated to the caller. The underlying DB resources are properly disposed in any case.
261 def foreachIMEventInOccurrenceOrder(userID: String)(f: (IMEvent) => Unit) = {
262 imEventById.valuesIterator.filter(_.userID == userID).toSeq.sortWith {
263 case (ev1, ev2) ⇒ ev1.occurredMillis <= ev2.occurredMillis
269 * Store an accounting policy.
271 def insertPolicy(policy: PolicyModel): Policy = {
272 val localPolicy = StdPolicy(
274 parentID = policy.parentID,
275 validityTimespan = policy.validityTimespan,
276 resourceTypes = policy.resourceTypes,
277 chargingBehaviors = policy.chargingBehaviors,
278 roleMapping = policy.roleMapping
280 _policies = localPolicy :: _policies
285 def loadValidPolicyAt(atMillis: Long): Option[Policy] = {
286 throw new UnsupportedOperationException
289 def loadAndSortPoliciesWithin(fromMillis: Long, toMillis: Long): SortedMap[Timeslot, Policy] = {
290 throw new UnsupportedOperationException
294 object MemStoreProvider {
295 final def isLocalIMEvent(event: IMEventModel) = event match {
296 case _: MemIMEvent ⇒ true