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From "Enis Soztutar (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-1436) Redesign Tool and ToolBase API and releted functionality
Date Tue, 21 Aug 2007 12:19:30 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-1436?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12521411
] 

Enis Soztutar commented on HADOOP-1436:
---------------------------------------

Doug, i think the changes.txt log should be in the INCOMPATIBLE CHANGES section rather than
IMPROVEMENTS. The patch deprecates ToolBase, which is used heavily in nutch. 

> Redesign Tool and ToolBase API and releted functionality
> --------------------------------------------------------
>
>                 Key: HADOOP-1436
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1436
>             Project: Hadoop
>          Issue Type: Improvement
>          Components: util
>    Affects Versions: 0.15.0
>            Reporter: Enis Soztutar
>            Assignee: Enis Soztutar
>             Fix For: 0.15.0
>
>         Attachments: redesignToolAndRelated_v1.0.patch, redesignToolAPI_v1.1.patch, redesignToolAPI_v1.2.patch,
redesignToolAPI_v1.3.patch
>
>
> With the discussion from HADOOP-1425, we need better abstraction and better tool runner
utilities. 
> 1. Classes do not need to extend ToolBase 
> 2. functions for parsing general HadoopCommands (-fs, -conf, -jt) should be public
> 3. We need a ToolRunner, or similar functionality 
> 4. Also we need each class (implementing Tool) to be runnable (main method)
> 5. CLI objects can be passed to run method of the Tool class (arguable)

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