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https://issues.apache.org/jira/browse/STORM-966?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Boyang Jerry Peng updated STORM-966:
------------------------------------
    Description: 
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 
214ee7454548b884c591991b1faea770d1478cec Number.Class was used anyway




  was:
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.  In previous commit 214ee7454548b884c591991b1faea770d1478cec 
Number.Class was used anyway





> 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 
> 214ee7454548b884c591991b1faea770d1478cec Number.Class was used anyway



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