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/*
* =========================================================================================
* Copyright © 2013-2014 the kamon project <http://kamon.io/>
*
* Licensed 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, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
* either express or implied. See the License for the specific language governing permissions
* and limitations under the License.
* =========================================================================================
*/
package kamon
import akka.actor.{ Extension, ActorSystem, ExtensionId }
import java.util.concurrent.ConcurrentHashMap
object AkkaExtensionSwap {
def swap(system: ActorSystem, key: ExtensionId[_], value: Extension): Unit = {
val extensionsField = system.getClass.getDeclaredField("extensions")
extensionsField.setAccessible(true)
val extensions = extensionsField.get(system).asInstanceOf[ConcurrentHashMap[ExtensionId[_], AnyRef]]
extensions.put(key, value)
}
}
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