[jira] Resolved: (IO-50) [io] Use java.nio for copyFile(File source, File destination)

["Henri Yandell (JIRA)" <ji...@apache.org>]

     [ http://issues.apache.org/jira/browse/IO-50?page=all ]
     
Henri Yandell resolved IO-50:
-----------------------------

    Resolution: Won't Fix

Marking this as a won't do.

Even if someone did a fancy reflection version we shouldn't add it as it would be a maintenance pain.

Sorry James.

> [io] Use java.nio for copyFile(File source, File destination)
> -------------------------------------------------------------
>
>          Key: IO-50
>          URL: http://issues.apache.org/jira/browse/IO-50
>      Project: Commons IO
>         Type: Improvement

>     Versions: 1.0 Final
>  Environment: Operating System: Windows XP
> Platform: PC
>     Reporter: jamesm
>     Priority: Minor

>
> I suggest research into making the following change in FileUtils.java, to 
> replace the current block of code which does the copying:
> --- begin ---
> FileInputStream input = new FileInputStream(source);
> try {
>     FileOutputStream output = new FileOutputStream(destination);
>     try {
>         FileChannel inputChannel = fileIn.getChannel();
>         FileChannel outputChannel = fileOut.getChannel();
>         inputChannel.transferTo(0, source.length(), outputChannel);
>     }
>     finally {
>         IOUtils.closeQuietly(output);
>     }
> }
> finally {
>     IOUtils.closeQuietly(input);
> }
> --- end ---
> I believe this may be faster as it uses the operating system directly. There is 
> also the option of providing this method under a different name, e.g. 
> copyFileNIO.

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