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!per #18050 Make event adapter lookup more efficient

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This commit is contained in:
Patrik Nordwall 2015-09-10 19:48:57 +02:00
parent a22b3be9da
commit b3fedb4cf8
3 changed files with 15 additions and 14 deletions
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13
akka-persistence/src/main/scala/akka/persistence/journal/EventAdapters.scala
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@ -16,8 +16,10 @@ import scala.collection.mutable.ArrayBuffer
import scala.reflect.ClassTag
import scala.util.Try
/** INTERNAL API */
private[akka] class EventAdapters(
/**
* `EventAdapters` serves as a per-journal collection of bound event adapters.
*/
class EventAdapters(
map: ConcurrentHashMap[Class[_], EventAdapter],
bindings: immutable.Seq[(Class[_], EventAdapter)],
log: LoggingAdapter) {
@ -62,7 +64,10 @@ private[akka] object EventAdapters {
def apply(system: ExtendedActorSystem, config: Config): EventAdapters = {
val adapters = configToMap(config, "event-adapters")
val adapterBindings = configToListMap(config, "event-adapter-bindings")
apply(system, adapters, adapterBindings)
if (adapters.isEmpty && adapterBindings.isEmpty)
IdentityEventAdapters
else
apply(system, adapters, adapterBindings)
}
private def apply(
@ -165,4 +170,4 @@ private[akka] object EventAdapters {
private[akka] case object IdentityEventAdapters extends EventAdapters(null, null, null) {
override def get(clazz: Class[_]): EventAdapter = IdentityEventAdapter
override def toString = Logging.simpleName(IdentityEventAdapters)
}
}

4
akka-persistence/src/main/scala/akka/persistence/journal/WriteJournalBase.scala
View file

@ -13,8 +13,8 @@ import akka.persistence.AtomicWrite
private[akka] trait WriteJournalBase {
this: Actor ⇒
lazy val persistence = Persistence(context.system)
private def eventAdapters = persistence.adaptersFor(self)
val persistence = Persistence(context.system)
private val eventAdapters = persistence.adaptersFor(self)
protected def preparePersistentBatch(rb: immutable.Seq[PersistentEnvelope]): immutable.Seq[AtomicWrite] =
rb.collect { // collect instead of flatMap to avoid Some allocations