How to atomically set the value of the file attribute in java?

Question

I need to atomically set the value of the file attribute in java. I found the method

Path Files.setAttribute(Path path, String attribute, Object value, LinkOption... options)

but the documentation is not specified that the value will be set atomically. Please tell me how to do it.

Answer 1

FileLock could be a solution:

    Path path = new File("C:/Test/test.txt").toPath();

    FileChannel fc = FileChannel.open(path, StandardOpenOption.WRITE);
    FileLock lock = fc.tryLock();
    if (lock != null) {
        try {
            FileTime fileTime = FileTime.fromMillis(0);
            Files.setAttribute(path, "basic:creationTime", fileTime, LinkOption.NOFOLLOW_LINKS);
        } finally {
            lock.release();
        }
    }