How to detect which physical drive a given file is on

Question

Given a file that exists, is there a way within Java to detect what physical drive that file is on? I don't care how that drive is denoted, as long as it is uniquely specified. This can be through a hard drive serial number, or any other way. The specifics of the drive do not matter, I only care about uniquely identifying physical drives. If it matters, I'd like to also be able to determine if said drive is a flash drive, however programmatically I won't care that it is a flash drive, just that it is a separate drive itself.
If this isn't possible through Java, could someone point me in the direction of how to determine this through another language, possibly using JNI?

Answer 1

mgolowka wrote:
Given a file that exists, is there a way within Java to detect what physical drive that file is on?
Check if this helps you, I'm not sure the effects when this is executed in a Unix based environment.
     public static void main(final String[] args) {
          final String fileName = "my_file.myext";
          final File file = new File(fileName);
          final File roots[] = File.listRoots();
          final String rootOfTheFile = file.getAbsolutePath().substring(0,
                    file.getAbsolutePath().indexOf(File.separator))
                    + File.separator;
          System.out.println("File is present in - " + rootOfTheFile);
          for (final File file2 : roots) {
               System.out.println("Root in system - " + file2.getPath());
     }And the output for the code is as follows, of which Y and Z are network mapped drives.
File is present in - D:\
Root in system - C:\
Root in system - D:\
Root in system - E:\
Root in system - F:\
Root in system - Y:\
Root in system - Z:\