- PropertyMaster is the only place in Akka which calls ClassLoader.getClass (apart from kernel, which might be special) - all PropertyMaster methods (there are only three) take a ClassManifest of what is to be constructed, and they verify that the obtained object is actually compatible with the required type Other stuff: - noticed that I had forgotten to change to ExtendedActorSystem when constructing Extensions by ExtensionKey (damn you, reflection!) - moved Serializer.currentSystem into JavaSerializer, because that’s the only one needing it (it’s only used in readResolve() methods) - Serializers are constructed now with one-arg constructor taking ExtendedActorSystem (if that exists, otherwise no-arg as before), to allow JavaSerializer to do its magic; possibly necessary for others as well - Removed all Option[ClassLoader] signatures - made it so that the ActorSystem will try context class loader, then the class loader which loaded the class actually calling into ActorSystem.apply, then the loader which loaded ActorSystemImpl - for the second of the above I added a (reflectively accessed hopefully safe) facility for getting caller Class[_] objects by using sun.reflect.Reflection; this is optional an defaults to None, e.g. on Android, which means that getting the caller’s classloader is done on a best effort basis (there’s nothing we can do because a StackTrace does not contain actual Class[_] objects). - refactored DurableMailbox to contain the owner val and use that instead of declaring that in all subclasses
28 lines
No EOL
998 B
Scala
28 lines
No EOL
998 B
Scala
/**
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* Copyright (C) 2009-2012 Typesafe Inc. <http://www.typesafe.com>
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*/
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package akka.serialization
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import com.google.protobuf.Message
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import akka.actor.PropertyMaster
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/**
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* This Serializer serializes `com.google.protobuf.Message`s
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*/
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class ProtobufSerializer extends Serializer {
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val ARRAY_OF_BYTE_ARRAY = Array[Class[_]](classOf[Array[Byte]])
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def includeManifest: Boolean = true
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def identifier = 2
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def toBinary(obj: AnyRef): Array[Byte] = obj match {
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case m: Message ⇒ m.toByteArray
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case _ ⇒ throw new IllegalArgumentException("Can't serialize a non-protobuf message using protobuf [" + obj + "]")
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}
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def fromBinary(bytes: Array[Byte], clazz: Option[Class[_]]): AnyRef =
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clazz match {
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case None ⇒ throw new IllegalArgumentException("Need a protobuf message class to be able to serialize bytes using protobuf")
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case Some(c) ⇒ c.getDeclaredMethod("parseFrom", ARRAY_OF_BYTE_ARRAY: _*).invoke(null, bytes).asInstanceOf[Message]
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}
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} |