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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}
54 * An implementation of various stores that persists parts in memory.
56 * This is just for testing purposes.
58 * @author Christos KK Loverdos <loverdos@gmail.com>
59 * @author Georgios Gousios <gousiosg@gmail.com>
62 class MemStoreProvider
67 with ResourceEventStore
70 override type IMEvent = MemIMEvent
71 override type ResourceEvent = MemResourceEvent
72 override type Policy = StdPolicy
74 private[this] var _userStates = List[UserState]()
75 private[this] var _policies = List[Policy]()
76 private[this] var _resourceEvents = List[ResourceEvent]()
78 private[this] val imEventById: ConcurrentMap[String, MemIMEvent] = new ConcurrentHashMap[String, MemIMEvent]()
81 def propertyPrefix = None
83 def configure(props: Props) = {
86 override def toString = {
88 Tags.UserStateTag -> _userStates.size,
89 Tags.ResourceEventTag -> _resourceEvents.size,
90 Tags.IMEventTag -> imEventById.size,
91 "PolicyEntry" -> _policies.size
94 "MemStoreProvider(%s)" format map
98 def userStateStore = this
100 def resourceEventStore = this
102 def imEventStore = this
104 def policyStore = this
109 def insertUserState(userState: UserState): UserState = {
110 _userStates = userState.copy(_id = new ObjectId().toString) :: _userStates
114 def findUserStateByUserID(userID: String) = {
115 _userStates.find(_.userID == userID)
118 def findLatestUserStateForFullMonthBilling(userID: String, bmi: BillingMonthInfo): Option[UserState] = {
119 val goodOnes = _userStates.filter(_.theFullBillingMonth.isDefined).filter { userState ⇒
120 val f1 = userState.userID == userID
121 val f2 = userState.isFullBillingMonthState
122 val bm = userState.theFullBillingMonth.get
130 us1.occurredMillis > us2.occurredMillis
140 //+ ResourceEventStore
141 def createResourceEventFromOther(event: ResourceEventModel): ResourceEvent = {
142 if(event.isInstanceOf[MemResourceEvent]) event.asInstanceOf[MemResourceEvent]
145 new StdResourceEvent(
160 override def clearResourceEvents() = {
161 _resourceEvents = Nil
164 def pingResourceEventStore(): Unit = {
165 // We are always live and kicking...
168 def insertResourceEvent(event: ResourceEventModel) = {
169 val localEvent = createResourceEventFromOther(event)
170 _resourceEvents ::= localEvent
174 def findResourceEventByID(id: String) = {
175 _resourceEvents.find(ev ⇒ ev.id == id)
178 def findResourceEventsByUserID(userId: String)
179 (sortWith: Option[(ResourceEvent, ResourceEvent) => Boolean]): List[ResourceEvent] = {
180 val byUserId = _resourceEvents.filter(_.userID == userId).toArray
181 val sorted = sortWith match {
183 byUserId.sortWith(sorter)
191 def countOutOfSyncResourceEventsForBillingPeriod(userID: String, startMillis: Long, stopMillis: Long): Long = {
192 _resourceEvents.filter { case ev ⇒
193 ev.userID == userID &&
194 // out of sync events are those that were received in the billing month but occurred in previous (or next?)
196 ev.isOutOfSyncForBillingPeriod(startMillis, stopMillis)
199 //- ResourceEventStore
201 def foreachResourceEventOccurredInPeriod(
205 )(f: ResourceEvent ⇒ Unit): Unit = {
206 _resourceEvents.filter { case ev ⇒
207 ev.userID == userID &&
208 ev.isOccurredWithinMillis(startMillis, stopMillis)
213 def createIMEventFromJson(json: String) = {
214 StdIMEvent.fromJsonString(json)
217 def createIMEventFromOther(event: IMEventModel) = {
218 StdIMEvent.fromOther(event)
221 def pingIMEventStore(): Unit = {
225 def insertIMEvent(event: IMEventModel) = {
226 val localEvent = createIMEventFromOther(event)
227 imEventById += (event.id -> localEvent)
231 def findIMEventByID(id: String) = imEventById.get(id)
235 * Find the `CREATE` even for the given user. Note that there must be only one such event.
237 def findCreateIMEventByUserID(userID: String): Option[IMEvent] = {
238 imEventById.valuesIterator.filter { e ⇒
239 e.userID == userID && e.isCreateUser
240 }.toList.sortWith { case (e1, e2) ⇒
241 e1.occurredMillis < e2.occurredMillis
245 def findLatestIMEventByUserID(userID: String): Option[IMEvent] = {
246 imEventById.valuesIterator.filter(_.userID == userID).toList.sortWith {
248 us1.occurredMillis > us2.occurredMillis
253 * Scans events for the given user, sorted by `occurredMillis` in ascending order and runs them through
254 * the given function `f`.
256 * Any exception is propagated to the caller. The underlying DB resources are properly disposed in any case.
258 def foreachIMEventInOccurrenceOrder(userID: String)(f: (IMEvent) => Unit) = {
259 imEventById.valuesIterator.filter(_.userID == userID).toSeq.sortWith {
260 case (ev1, ev2) ⇒ ev1.occurredMillis <= ev2.occurredMillis
265 def loadPoliciesAfter(afterMillis: Long) =
266 _policies.filter(p => p.validFrom > afterMillis)
267 .sortWith((a,b) => a.validFrom < b.validFrom)
269 def findPolicyByID(id: String) = {
270 _policies.find(p => p.id == id)
274 * Store an accounting policy.
276 def insertPolicy(policy: PolicyModel): Policy = {
277 val localPolicy = StdPolicy(
279 parentID = policy.parentID,
280 validityTimespan = policy.validityTimespan,
281 resourceTypes = policy.resourceTypes,
282 chargingBehaviors = policy.chargingBehaviors,
283 roleMapping = policy.roleMapping
285 _policies = localPolicy :: _policies
291 object MemStoreProvider {
292 final def isLocalIMEvent(event: IMEventModel) = event match {
293 case _: MemIMEvent ⇒ true