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36 package gr.grnet.aquarium.computation.data
38 import gr.grnet.aquarium.util.findAndRemoveFromMap
39 import gr.grnet.aquarium.event.model.resource.ResourceEventModel
40 import gr.grnet.aquarium.event.model.resource.ResourceEventModel.FullMutableResourceTypeMap
43 * This is the mutable cousin of [[gr.grnet.aquarium.computation.data.LatestResourceEventsSnapshot]].
45 * @param latestEventsMap
47 * @author Christos KK Loverdos <loverdos@gmail.com>
49 case class LatestResourceEventsWorker(latestEventsMap: FullMutableResourceTypeMap) {
52 * The gateway to immutable state.
54 * @param snapshotTime The relevant snapshot time.
55 * @return A fresh instance of [[gr.grnet.aquarium.computation.data.LatestResourceEventsSnapshot]].
57 def toImmutableSnapshot(snapshotTime: Long) =
58 LatestResourceEventsSnapshot(latestEventsMap.valuesIterator.toList)
60 def updateResourceEvent(resourceEvent: ResourceEventModel): Unit = {
61 latestEventsMap((resourceEvent.resource, resourceEvent.instanceID)) = resourceEvent
64 def findResourceEvent(resource: String, instanceId: String): Option[ResourceEventModel] = {
65 latestEventsMap.get((resource, instanceId))
68 def findAndRemoveResourceEvent(resource: String, instanceId: String): Option[ResourceEventModel] = {
69 findAndRemoveFromMap(latestEventsMap, (resource, instanceId))
72 def size = latestEventsMap.size
74 def foreach[U](f: ResourceEventModel => U): Unit = {
75 latestEventsMap.valuesIterator.foreach(f)
79 object LatestResourceEventsWorker {
80 final val Empty = LatestResourceEventsWorker(scala.collection.mutable.Map())
83 * Helper factory to construct a worker from a list of events.
85 def fromList(latestEventsList: List[ResourceEventModel]): LatestResourceEventsWorker = {
86 LatestResourceEventsSnapshot(latestEventsList).toMutableWorker