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https://issues.apache.org/jira/browse/IO-531?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15976384#comment-15976384
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Sebb commented on IO-531:
-------------------------
The PDF says:
{quote}
I want to use the org.apache.commons.io.FileUtils.listFiles(File, IOFileFilter,
IOFileFilter) api to list all the files except the files in subdirectory “se”
{quote}
That could be coded as:
{code}
FileUtils.listFiles(directory, TrueFileFilter.TRUE, new NotFileFilter(new
NameFileFilter("se")))
{code}
Note that you can also subclass AbstractFileFilter as follows:
{code}
new AbstractFileFilter() {
@Override
public boolean accept(File file) {
return ! file.getName().contains("se");
}
}
{code}
No need to check if the file is a directory as the dirfilter is only called for
directories.
or you could use
{code}
new AbstractFileFilter() {
@Override
public boolean accept(File dir, String name) {
return ! name.contains("se");
}
}
{code}
Both would be closer to the solutions shown in the PDF which check for "se" in
the directory name
> make it more esay-to-use: org.apache.commons.io.FileUtils.listFiles(File,
> IOFileFilter, IOFileFilter)
> -----------------------------------------------------------------------------------------------------
>
> Key: IO-531
> URL: https://issues.apache.org/jira/browse/IO-531
> Project: Commons IO
> Issue Type: Improvement
> Components: Utilities
> Affects Versions: 2.5
> Reporter: Hao Liu
> Attachments: Commons IOIO-531.pdf
>
>
> when I only want to filter the directories, it should be better to allow me
> to set the second parameter to null or I have to implement the
> org.apache.commons.io.filefilter.IOFileFilter interface with nothing
> functionally task to do.
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