[ https://issues.apache.org/jira/browse/HADOOP-7180?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Daryn Sharp updated HADOOP-7180:
--------------------------------

    Attachment: HADOOP-7180-2.patch

Converted to junit 4, added what I think are the missing javadocs(?), added min/max & expected args to parameter exceptions.

I omitted the suggested change to add an index to the list version of parse.  The index is present on the old method to skip over ARGV[0] (the command).  With the forthcoming changes, the command will be consumed from the list before calling the list-based parse.  If it was added, then the sublist/erase would still be required since the list is expected to be  destructively modified.  If you feel strongly about the index, please let me know.

> Improve CommandFormat
> ---------------------
>
>                 Key: HADOOP-7180
>                 URL: https://issues.apache.org/jira/browse/HADOOP-7180
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: fs
>            Reporter: Daryn Sharp
>            Assignee: Daryn Sharp
>             Fix For: 0.23.0
>
>         Attachments: HADOOP-7180-2.patch, HADOOP-7180.patch
>
>
> CommandFormat currently takes an array and offset for parsing and returns a list of arguments.  It'd be much more convenient to have it process a list too.  It would also be nice to differentiate between too few and too many args instead of the generic "Illegal number of arguments".  Finally, CommandFormat is completely devoid of tests.

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