private void walk()

in src/main/java/org/apache/commons/io/DirectoryWalker.java [640:666]
27 lines of code
8 McCabe index (conditional complexity)

    private void walk(final File directory, final int depth, final Collection<T> results) throws IOException {
        checkIfCancelled(directory, depth, results);
        if (handleDirectory(directory, depth, results)) {
            handleDirectoryStart(directory, depth, results);
            final int childDepth = depth + 1;
            if (depthLimit < 0 || childDepth <= depthLimit) {
                checkIfCancelled(directory, depth, results);
                File[] childFiles = filter == null ? directory.listFiles() : directory.listFiles(filter);
                childFiles = filterDirectoryContents(directory, depth, childFiles);
                if (childFiles == null) {
                    handleRestricted(directory, childDepth, results);
                } else {
                    for (final File childFile : childFiles) {
                        if (childFile.isDirectory()) {
                            walk(childFile, childDepth, results);
                        } else {
                            checkIfCancelled(childFile, childDepth, results);
                            handleFile(childFile, childDepth, results);
                            checkIfCancelled(childFile, childDepth, results);
                        }
                    }
                }
            }
            handleDirectoryEnd(directory, depth, results);
        }
        checkIfCancelled(directory, depth, results);
    }