public static Collection<File> listFiles(
File directory, IOFileFilter fileFilter, IOFileFilter dirFilter) {
validateListFilesParameters(directory, fileFilter);
IOFileFilter effFileFilter = setUpEffectiveFileFilter(fileFilter);
IOFileFilter effDirFilter = setUpEffectiveDirFilter(dirFilter);
Collection<File> files = new LinkedList();
innerListFiles(
files,
directory,
FileFilterUtils.or(new IOFileFilter[] {effFileFilter, effDirFilter}),
false);
return files;
}
private static IOFileFilter setUpEffectiveDirFilter(IOFileFilter dirFilter) {
return dirFilter == null
? FalseFileFilter.INSTANCE
: FileFilterUtils.and(new IOFileFilter[] {dirFilter, DirectoryFileFilter.INSTANCE});
}
private static IOFileFilter setUpEffectiveFileFilter(IOFileFilter fileFilter) {
return FileFilterUtils.and(
new IOFileFilter[] {
fileFilter, FileFilterUtils.notFileFilter(DirectoryFileFilter.INSTANCE)
});
}