akka.dispatch.PriorityThreadsDispatcherPrerequisites.scala Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
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* See the License for the specific language governing permissions and
* limitations under the License.
*/
package akka.dispatch
/**
* Composition over [[DefaultDispatcherPrerequisites]] that replaces thread factory with one that
* allow to configure thread priority.
*
* @param newThreadPriority priority that will be set to each newly created thread
* should be between Thread.MIN_PRIORITY and Thread.MAX_PRIORITY
*/
class PriorityThreadsDispatcherPrerequisites(
prerequisites: DispatcherPrerequisites,
newThreadPriority: Int) extends DispatcherPrerequisites {
private val defaultDispatcherPrerequisites : DefaultDispatcherPrerequisites =
new DefaultDispatcherPrerequisites(
eventStream = prerequisites.eventStream,
scheduler = prerequisites.scheduler,
dynamicAccess = prerequisites.dynamicAccess,
settings = prerequisites.settings,
mailboxes = prerequisites.mailboxes,
defaultExecutionContext = prerequisites.defaultExecutionContext,
threadFactory = new PriorityThreadFactory(prerequisites, newThreadPriority)
)
override def threadFactory : java.util.concurrent.ThreadFactory = {
defaultDispatcherPrerequisites.threadFactory
}
override def eventStream : akka.event.EventStream = {
defaultDispatcherPrerequisites.eventStream
}
override def scheduler : akka.actor.Scheduler = {
defaultDispatcherPrerequisites.scheduler
}
override def dynamicAccess : akka.actor.DynamicAccess = {
defaultDispatcherPrerequisites.dynamicAccess
}
override def settings : akka.actor.ActorSystem.Settings = {
defaultDispatcherPrerequisites.settings
}
override def mailboxes : akka.dispatch.Mailboxes = {
defaultDispatcherPrerequisites.mailboxes
}
override def defaultExecutionContext : scala.Option[scala.concurrent.ExecutionContext] = {
defaultDispatcherPrerequisites.defaultExecutionContext
}
}
object PriorityThreadsDispatcherPrerequisites {
def apply(prerequisites: DispatcherPrerequisites, newThreadPriority: Int):
PriorityThreadsDispatcherPrerequisites =
new PriorityThreadsDispatcherPrerequisites(prerequisites, newThreadPriority)
}