private void copyDirectory()

in src/android/LocalFilesystem.java [283:327]
38 lines of code
12 McCabe index (conditional complexity)

    private void copyDirectory(Filesystem srcFs, LocalFilesystemURL srcURL, File dstDir, boolean move) throws IOException, NoModificationAllowedException, InvalidModificationException, FileExistsException {
        if (move) {
            String realSrcPath = srcFs.filesystemPathForURL(srcURL);
            if (realSrcPath != null) {
                File srcDir = new File(realSrcPath);
                // If the destination directory already exists and is empty then delete it.  This is according to spec.
                if (dstDir.exists()) {
                    if (dstDir.list().length > 0) {
                        throw new InvalidModificationException("directory is not empty");
                    }
                    dstDir.delete();
                }
                // Try to rename the directory
                if (srcDir.renameTo(dstDir)) {
                    return;
                }
                // Trying to rename the file failed.  Possibly because we moved across file system on the device.
            }
        }

        if (dstDir.exists()) {
            if (dstDir.list().length > 0) {
                throw new InvalidModificationException("directory is not empty");
            }
        } else {
            if (!dstDir.mkdir()) {
                // If we can't create the directory then fail
                throw new NoModificationAllowedException("Couldn't create the destination directory");
            }
        }

        LocalFilesystemURL[] children = srcFs.listChildren(srcURL);
        for (LocalFilesystemURL childLocalUrl : children) {
            File target = new File(dstDir, new File(childLocalUrl.path).getName());
            if (childLocalUrl.isDirectory) {
                copyDirectory(srcFs, childLocalUrl, target, false);
            } else {
                copyFile(srcFs, childLocalUrl, target, false);
            }
        }

        if (move) {
            srcFs.recursiveRemoveFileAtLocalURL(srcURL);
        }
    }