在Java中专门创建和打开文件或超时

Question

有没有更好的方法来独家创建和打开文件？

我唯一想到的就是下面的代码片段。重点是创建文件并将其打开以进行独占的写访问。如果该文件存在，则等待它被其他进程删除或超时并抛出异常。

    final long MAX_WAIT = 5 * 1000; // 5 seconds
    File tmpFile = new File(configuration.getFilePath().getPath() 
                        + "." + Util.TMP_EXTENSION);
    Path path = tmpFile.toPath();

    long start = System.currentTimeMillis();
    FileChannel channel = null;
    while (true) {
        try {
            channel = FileChannel.open(path, new HashSet(Arrays.asList(
                          StandardOpenOption.WRITE,
                          StandardOpenOption.CREATE_NEW)));

            break;
        } catch (IOException ex) {
            if (System.currentTimeMillis() > (start + MAX_WAIT)) {
                throw new RuntimeException("Timeout, couldn't create tmp file '" 
                    + tmpFile.getPath() + "'", ex);
            }

            try {
                Thread.sleep((long) (10 + (Math.random() * 50)));
            } catch (InterruptedException ie) {
                throw new RuntimeException(ie);
            }
        }
    }

    FileLock lock = null;
    Writer writer = null;

    try {
        lock = channel.lock();
        writer = new BufferedWriter(Channels.newWriter(
                     channel, configuration.getEncoding()));

        //DO REAL WORK HERE
    } catch (IOException ex) {
        throw new RuntimeException("Couldn't write data", ex);
    } finally {
        try {
            if (writer != null) {
                writer.close();
            }
            if (lock != null && lock.isValid()) {
                lock.release();
            }
        } catch (IOException ex) {}
    }

感谢。