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=str #19299 Performance Flow.flatMapMerge

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This commit is contained in:
Alexander Golubev 2016-02-02 16:39:47 -05:00
parent ad8ab128c4
commit b2b2ce44b5
19 changed files with 224 additions and 134 deletions
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43
akka-stream/src/main/scala/akka/stream/ActorMaterializer.scala
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@ -9,6 +9,7 @@ import java.util.concurrent.atomic.{ AtomicBoolean }
import akka.actor.{ ActorContext, ActorRef, ActorRefFactory, ActorSystem, ExtendedActorSystem, Props }
import akka.event.LoggingAdapter
import akka.stream.ActorMaterializerSettings.defaultMaxFixedBufferSize
import akka.stream.impl._
import com.typesafe.config.Config
@ -224,7 +225,7 @@ object ActorMaterializerSettings {
* Create [[ActorMaterializerSettings]] from a Config subsection (Scala).
*/
def apply(config: Config): ActorMaterializerSettings =
ActorMaterializerSettings(
new ActorMaterializerSettings(
initialInputBufferSize = config.getInt("initial-input-buffer-size"),
maxInputBufferSize = config.getInt("max-input-buffer-size"),
dispatcher = config.getString("dispatcher"),
@ -234,7 +235,8 @@ object ActorMaterializerSettings {
outputBurstLimit = config.getInt("output-burst-limit"),
fuzzingMode = config.getBoolean("debug.fuzzing-mode"),
autoFusing = config.getBoolean("auto-fusing"),
maxFixedBufferSize = config.getInt("max-fixed-buffer-size"))
maxFixedBufferSize = config.getInt("max-fixed-buffer-size"),
syncProcessingLimit = config.getInt("sync-processing-limit"))
/**
* Create [[ActorMaterializerSettings]] from individual settings (Java).
@ -266,13 +268,14 @@ object ActorMaterializerSettings {
def create(config: Config): ActorMaterializerSettings =
apply(config)
private val defaultMaxFixedBufferSize = 1000
}
/**
* This class describes the configurable properties of the [[ActorMaterializer]].
* Please refer to the `withX` methods for descriptions of the individual settings.
*/
final class ActorMaterializerSettings(
final class ActorMaterializerSettings private (
val initialInputBufferSize: Int,
val maxInputBufferSize: Int,
val dispatcher: String,
@ -282,9 +285,25 @@ final class ActorMaterializerSettings(
val outputBurstLimit: Int,
val fuzzingMode: Boolean,
val autoFusing: Boolean,
val maxFixedBufferSize: Int) {
val maxFixedBufferSize: Int,
val syncProcessingLimit: Int) {
def this(initialInputBufferSize: Int,
maxInputBufferSize: Int,
dispatcher: String,
supervisionDecider: Supervision.Decider,
subscriptionTimeoutSettings: StreamSubscriptionTimeoutSettings,
debugLogging: Boolean,
outputBurstLimit: Int,
fuzzingMode: Boolean,
autoFusing: Boolean,
maxFixedBufferSize: Int) {
this(initialInputBufferSize, maxInputBufferSize, dispatcher, supervisionDecider, subscriptionTimeoutSettings, debugLogging,
outputBurstLimit, fuzzingMode, autoFusing, maxFixedBufferSize, defaultMaxFixedBufferSize)
}
require(initialInputBufferSize > 0, "initialInputBufferSize must be > 0")
require(syncProcessingLimit > 0, "syncProcessingLimit must be > 0")
requirePowerOfTwo(maxInputBufferSize, "maxInputBufferSize")
require(initialInputBufferSize <= maxInputBufferSize, s"initialInputBufferSize($initialInputBufferSize) must be <= maxInputBufferSize($maxInputBufferSize)")
@ -299,10 +318,12 @@ final class ActorMaterializerSettings(
outputBurstLimit: Int = this.outputBurstLimit,
fuzzingMode: Boolean = this.fuzzingMode,
autoFusing: Boolean = this.autoFusing,
maxFixedBufferSize: Int = this.maxFixedBufferSize) =
maxFixedBufferSize: Int = this.maxFixedBufferSize,
syncProcessingLimit: Int = this.syncProcessingLimit) = {
new ActorMaterializerSettings(
initialInputBufferSize, maxInputBufferSize, dispatcher, supervisionDecider, subscriptionTimeoutSettings, debugLogging,
outputBurstLimit, fuzzingMode, autoFusing, maxFixedBufferSize)
outputBurstLimit, fuzzingMode, autoFusing, maxFixedBufferSize, syncProcessingLimit)
}
/**
* Each asynchronous piece of a materialized stream topology is executed by one Actor
@ -366,6 +387,13 @@ final class ActorMaterializerSettings(
if (limit == this.outputBurstLimit) this
else copy(outputBurstLimit = limit)
/**
* Limit for number of messages that can be processed synchronously in stream to substream communication
*/
def withSyncProcessingLimit(limit: Int): ActorMaterializerSettings =
if (limit == this.syncProcessingLimit) this
else copy(syncProcessingLimit = limit)
/**
* Enable to log all elements that are dropped due to failures (at DEBUG level).
*/
@ -413,12 +441,13 @@ final class ActorMaterializerSettings(
s.subscriptionTimeoutSettings == subscriptionTimeoutSettings &&
s.debugLogging == debugLogging &&
s.outputBurstLimit == outputBurstLimit &&
s.syncProcessingLimit == syncProcessingLimit &&
s.fuzzingMode == fuzzingMode &&
s.autoFusing == autoFusing
case _ ⇒ false
}
override def toString: String = s"ActorMaterializerSettings($initialInputBufferSize,$maxInputBufferSize,$dispatcher,$supervisionDecider,$subscriptionTimeoutSettings,$debugLogging,$outputBurstLimit,$fuzzingMode,$autoFusing)"
override def toString: String = s"ActorMaterializerSettings($initialInputBufferSize,$maxInputBufferSize,$dispatcher,$supervisionDecider,$subscriptionTimeoutSettings,$debugLogging,$outputBurstLimit,$syncProcessingLimit,$fuzzingMode,$autoFusing)"
}
object StreamSubscriptionTimeoutSettings {