[jira] Commented: (LANG-382) Retrieve Directory File List in Timestamp Order

["Gary Gregory (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/LANG-382?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12548411 ] 

Gary Gregory commented on LANG-382:
-----------------------------------

This seems more appropriate a suggestion for Commons-IO, perhaps as an addition to the class org.apache.commons.io.FileUtils.

> Retrieve Directory File List in Timestamp Order
> -----------------------------------------------
>
>                 Key: LANG-382
>                 URL: https://issues.apache.org/jira/browse/LANG-382
>             Project: Commons Lang
>          Issue Type: New Feature
>         Environment: Java SE 5.  Windows and SuSe Linux.
>            Reporter: Al Scherer
>
> I searched your current Commons-Lang issues/feature requests and did not find the following so I'd like to propose it as a feature request.
> Given a filename filter and dir name, the new method would return a List<File> of the files that match the filter in last-modified timestamp order.  
> I've not found code out there that does this.  
> Sun explicitly does not - from the Sun Java SE 5 API Javadocs, File's listFiles() method descriptions include the following disclaimer:
>         "There is no guarantee that the name strings in the resulting array will appear in any specific order; they are not, in particular, guaranteed to appear in alphabetical order."
> I needed the files in last-modified order so I wrote code to do it.  I would be glad to share the code with the commons project if you feel it would be worthwhile.  The signature would be:
> - public List<File> getFileListModifiedTimestampOrder(FilenameFilter filter, String dirName)
> I've already written, tested and used code to do this.
> There are additional flavors that might be worthwhile, too.
> - public List<File> getFileListModifiedTimestampOrderReversed(FilenameFilter filter, String dirName)
> - public List<File> getFileListNameOrder(FilenameFilter filter, String dirName)
> - public List<File> getFileListNameOrderReversed(FilenameFilter filter, String dirName)

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