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From "Gary D. Gregory (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (IO-329) FileUtils.writeLines uses unbuffered IO
Date Mon, 28 May 2012 13:44:23 GMT

     [ https://issues.apache.org/jira/browse/IO-329?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Gary D. Gregory resolved IO-329.
--------------------------------

       Resolution: Fixed
    Fix Version/s: 2.4

Committed revision 1343253.
                
> FileUtils.writeLines uses unbuffered IO
> ---------------------------------------
>
>                 Key: IO-329
>                 URL: https://issues.apache.org/jira/browse/IO-329
>             Project: Commons IO
>          Issue Type: Bug
>          Components: Streams/Writers
>    Affects Versions: 2.3
>            Reporter: Vitalii Tymchyshyn
>             Fix For: 2.4
>
>
> FileUtils.writeLines looks like next:
>  out = openOutputStream(file, append);
>  IOUtils.writeLines(lines, lineEnding, out, encoding);
> openOutputStream opens plain FileOutputStream without any buffering and IOUtils.writeLines
does not add abyt buffering. This means each line require 2 write syscalls (one for the line
and one for line separator). This makes call very slow, especially for short lines

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