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From "Takanobu Asanuma (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-7829) Code clean up for LocatedBlock
Date Mon, 09 Mar 2015 10:47:39 GMT

     [ https://issues.apache.org/jira/browse/HDFS-7829?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Takanobu Asanuma updated HDFS-7829:
    Attachment: HDFS-7829.2.patch

I submitted a patch again. 

I found that RecoveringBlock inherited LocatedBlock. So I also implemented Builder pattern
in RecoveringBlock and fixed codes in LocatedBlock to use generics. I referred to [http://stackoverflow.com/questions/17164375/subclassing-a-java-builder-class].
This may be little complicated. And I fixed all codes calling constructors of these classes.

Please would you review my patch again. If it is no problem, I will remove multiple constructors
in LocatedBlock and RecoveringBlock. Thank you.

> Code clean up for LocatedBlock
> ------------------------------
>                 Key: HDFS-7829
>                 URL: https://issues.apache.org/jira/browse/HDFS-7829
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>            Reporter: Jing Zhao
>            Assignee: Takanobu Asanuma
>            Priority: Minor
>         Attachments: HDFS-7829.1.patch, HDFS-7829.2.patch
> We can do some code cleanup for {{LocatedBlock}}, including:
> # Using a simple Builder pattern to avoid multiple constructors
> # Setting data fields like {{corrupt}} and {{offset}} to final

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