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https://issues.apache.org/jira/browse/IO-142?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Niall Pemberton updated IO-142:
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Attachment: IO-142-listfiles-v1.patch
Atttaching a patch which includes 4 new methods in FileUtils:
- public static Iterable<File> listFiles(File, FileFilter, Comparator<File>)
- public static Iterable<File> listFiles(String, FileFilter, Comparator<File>)
- public static Iterable<File> listFilesRecursive(File, FileFilter,
Comparator<File>)
- public static Iterable<File> listFilesRecursive(String, FileFilter,
Comparator<File>)
These provide the option to filter an sort the files from either a single
directory or recursviely thru the directory structure.
Using these with IO's packages of Filters and Comparators implementations,
would be pretty powerful:
http://commons.apache.org/io/api-release/org/apache/commons/io/filefilter/package-summary.html
http://commons.apache.org/io/api-release/org/apache/commons/io/comparator/package-summary.html
Needs test cases
> Retrieve Directory File List in Timestamp Order
> -----------------------------------------------
>
> Key: IO-142
> URL: https://issues.apache.org/jira/browse/IO-142
> Project: Commons IO
> Issue Type: New Feature
> Components: Utilities
> Environment: Java SE 5 - Windows, Linux
> Reporter: Al Scherer
> Attachments: IO-142-listfiles-v1.patch
>
>
> I searched your current Commons-IO 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 method would return a List<File> of
> the files that match the filter in last-modified timestamp order.
> Sun explicitly does not provide this functionality - 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 and would
> be glad to share the code with the commons project if you feel it would be
> useful.
> The signature is:
> - public List<File> getFileListInTimestampOrder(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> getFileListInTimestampOrderReversed(FilenameFilter
> filter, String dirName)
> - public List<File> getFileListInNameOrder(FilenameFilter filter, String
> dirName)
> - public List<File> getFileListInNameOrderReversed(FilenameFilter filter,
> String dirName)
> BTW, I originally posted this on commons-lang but was given feedback that it
> might be a better fit here.
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