AKKA .conf file configuration to .properties file

Question

In my test.conf file I have the following configuration

akka {
  actor {
    provider = "akka.cluster.ClusterActorRefProvider"

    serializers {
       java = "akka.serialization.JavaSerializer"
    }

    serialization-bindings {
        "java.io.Serializable" = "kyro"
    }
  }
}

I am trying to put this configuation in test.properties file as

akka.actor.provider=akka.cluster.ClusterActorRefProvider
akka.actor.serializers.java=akka.serialization.JavaSerializer
akka.actor.serialization-bindings."java.io.Serializable" = kryo

When I create and AKKA ActorSystem using test.conf file it is working fine but when I am creating an ActorSytem with the test.propeties file as

System.setProperty("config.file", "test.properties");
Config config = ConfigFactory.load();
ActorSystem testactor = ActorSystem.create("testactor", config);

Here I am getting java ClassNotFoundExcpetion : "java

I seens the way I put the akka.actor.serialization-bindings."java.io.Serializable" in test.properties file is not correct.Please suggest the correct way to put this in .properties file.

Answer 1

I understood you want a properties file though I don't think you can declare a key in this way and also remember you have a powerful configuration tool in your hands.

I'd suggest to put all your default application configuration in reference.conf and override using application.conf hence you can just drop a specific application.conf on your classpath for testing on test/resources.

This could be your java/resources/reference.conf:

akka {
 actor {
  provider = "akka.cluster.ClusterActorRefProvider"

   serializers {
    java = "akka.serialization.JavaSerializer"
   }

  serialization-bindings {
   "java.io.Serializable" = "kyro"
  }
 }
}

And you put this on test/resources/application.conf or whatever you need for testing:

akka {
  serialization-bindings {
   "java.io.Serializable" = "java"
  }
} 

When you call ConfigFactory.load() all files will be merged in one configuration.

I advise to read more about how to configure and override the configuration: http://doc.akka.io/docs/akka/current/general/configuration.html#Configuring_multiple_ActorSystem