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https://issues.apache.org/jira/browse/STORM-328?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14056063#comment-14056063
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Jungtaek Lim commented on STORM-328:
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And we would lose precision when we convert integer or long to float, or long
to double by explicit type-casting.
http://www.informit.com/articles/article.aspx?p=1932926&seqNum=5
Since type-casting is not safe with some situation, I think we should present
getInt / getLong / getFloat / getDouble (Do we need getShort / getByte?), and
let Config more strict.
> Config.java and Utils.get{Int,Long} are not in sync for floating point
> ----------------------------------------------------------------------
>
> Key: STORM-328
> URL: https://issues.apache.org/jira/browse/STORM-328
> Project: Apache Storm (Incubating)
> Issue Type: Bug
> Affects Versions: 0.9.2-incubating, 0.9.1-incubating, 0.9.0.1
> Reporter: Robert Joseph Evans
> Labels: newbie
>
> For most numeric configuration values Config.java has a type of Number
> listed, but the values are parsed using Utils.getInt or Utils.getLong, which
> means if someone gave a floating point number it would pass the
> ConfigValidation, but would blow up when it is used. This is most critical
> for values that Nimbus reads, but would be good to have them consistent
> everywhere.
> We should also check that getInt works properly for numbers that are larger
> then would fit in an integer.
> Either we need to update Utils to be more lenient when looking at doubles, or
> we need to make Config more strict, which may be difficult with the YAML and
> JSON parsing that happens, where ints are often converted into longs.
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