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From "Michele (@pirroh) Catasta (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-6578) Configuration should trim whitespace around a lot of value types
Date Thu, 04 Mar 2010 11:21:27 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-6578?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Michele (@pirroh) Catasta updated HADOOP-6578:
----------------------------------------------

    Attachment: HADOOP-6578.patch

Fixed also the getters mentioned in the previous comment. 
Slight refactoring - now in tune with getStrings() vs getTrimmedStrings().

> Configuration should trim whitespace around a lot of value types
> ----------------------------------------------------------------
>
>                 Key: HADOOP-6578
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6578
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: conf
>    Affects Versions: 0.22.0
>            Reporter: Todd Lipcon
>            Priority: Minor
>         Attachments: HADOOP-6578.patch, HADOOP-6578.patch
>
>
> I've seen multiple users make an error where they've listed some whitespace around a
class name (eg for configuring a scheduler). This results in a ClassNotFoundException which
is very hard to debug, as you don't notice the whitespace in the exception! We should simply
trim the whitespace in Configuration.getClass and Configuration.getClasses to avoid this class
of user error.
> Similarly, we should trim in getInt, getLong, etc - anywhere that whitespace doesn't
have semantic meaning we should be a little less strict on input.

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