[GitHub] [incubator-nemo] taegeonum commented on a change in pull request #229: [NEMO-404] Provide user argument to use lambda executor representer

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taegeonum commented on a change in pull request #229: [NEMO-404] Provide user argument to use lambda executor representer
URL: https://github.com/apache/incubator-nemo/pull/229#discussion_r311565574
 
 

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 File path: runtime/master/src/main/java/org/apache/nemo/runtime/master/resource/ContainerManager.java
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 @@ -191,11 +194,23 @@ public void onContainerAllocated(final String executorId,
       messageSender = new FailedMessageSender();
     }
 
+    final ExecutorRepresenter executorRepresenter;
     // Create the executor representation.
-    final ExecutorRepresenter executorRepresenter =
-      new ExecutorRepresenter(executorId, resourceSpec, messageSender, activeContext, serializationExecutorService,
-        activeContext.getEvaluatorDescriptor().getNodeDescriptor().getName());
-
+    if(this.executorType.equals("default")) {
 
 Review comment:
   why don't you use Factory pattern? 
   It would be good to create an interface: `ExecutorRepresenterFactory`  
   and two implementation factories: `DefaultExecutorRepresenterFactory` and `LambdaExecutorRepresenterFactory`. 
   
   Also we can inject the specific factory through Tang and don't have to use `if--else` here. 

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