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https://issues.apache.org/jira/browse/STORM-966?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14652914#comment-14652914
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ASF GitHub Bot commented on STORM-966:
--------------------------------------

Github user caofangkun commented on a diff in the pull request:

    https://github.com/apache/storm/pull/658#discussion_r36149821
  
    --- Diff: storm-core/src/jvm/backtype/storm/ConfigValidation.java ---
    @@ -28,7 +28,6 @@
         /**
          * Declares methods for validating configuration values.
          */
    -    public static interface FieldValidator {
    --- End diff --
    
    This interface should not be annotated.
    Could you please have a check?


> ConfigValidation.DoubleValidator doesn't really validate whether the type of 
> the object is a double
> ---------------------------------------------------------------------------------------------------
>
>                 Key: STORM-966
>                 URL: https://issues.apache.org/jira/browse/STORM-966
>             Project: Apache Storm
>          Issue Type: Improvement
>            Reporter: Boyang Jerry Peng
>            Assignee: Boyang Jerry Peng
>            Priority: Minor
>
> ConfigValidation.DoubleValidator code only checks if the object is null 
> whether if the object is a instance of Number which is a parent class of 
> Double.
> DoubleValidator is only used once in Config.java and in that instance:
> public static final Object TOPOLOGY_STATS_SAMPLE_RATE_SCHEMA = 
> ConfigValidation.DoubleValidator;
> can just be set to:
> public static final Object TOPOLOGY_STATS_SAMPLE_RATE_SCHEMA = NUMBER.class;
> Then we can just get rid of the misleading function 
> ConfigValidation.DoubleValidator since it doesn't really check if a object is 
> of double type thus the validator function doesn't really do anything and the 
> name is misleading.  In previous commit 
> https://github.com/apache/storm/commit/214ee7454548b884c591991b1faea770d1478cec
>  Number.Class was used anyway



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