/**
* List all files in this directory.
*
* @param recursive true to list files recursively.
* @param filter the filter to use.
*/
public File[] listFiles(boolean recursive, FileFilter filter) {
if (!isDirectory()) return null;
// Simple list
if (!recursive && filter == null) {
String[] filenames = list();
File[] files = newFileArray(filenames.length);
for (int i = 0; i < files.length; i++) {
files[i] = newFile(this, filenames[i]);
}
return files;
}
// Complex list
UtilList list = new UtilList();
addFilesToList(list, this, recursive, filter);
File[] files = newFileArray(list.size());
list.toArray(files);
return files;
}
/**
* Adds files from the given directory into the list.
*
* @param list the file list.
* @param dir the directory.
* @param recursive true to list files recursively.
* @param filter the filter to use.
*/
private void addFilesToList(UtilList list, File dir, boolean recursive, FileFilter filter) {
String[] filenames = dir.list();
for (int i = 0; i < filenames.length; i++) {
File file = (File) newFile(dir, filenames[i]);
// Recursive
if (recursive) {
if (file.isDirectory()) {
addFilesToList(list, file, recursive, filter);
}
}
// Filter
if (filter != null) {
if (!filter.accept(file)) {
continue;
}
}
// Add
list.add(file);
}
}
