Method checkDirectory

src/utils/FileSystem.java:29–42

Verifies a directory and checks to see if it's writeable or not if configured @param dir The path to check on @param need_write Set to true if the path needs write access @param create Set to true if the directory should be created if it does not exist @throws IllegalArgumentException if th

(final String dir,
      final boolean need_write, final boolean create)

   *           be written to
   */
  public static void checkDirectory(final String dir,
      final boolean need_write, final boolean create) {
    if (dir.isEmpty())
      throw new IllegalArgumentException("Directory path is empty");
    final File f = new File(dir);
    if (!f.exists() && !(create && f.mkdirs())) {
      throw new IllegalArgumentException("No such directory [" + dir + "]");
    } else if (!f.isDirectory()) {
      throw new IllegalArgumentException("Not a directory [" + dir + "]");
    } else if (need_write && !f.canWrite()) {
      throw new IllegalArgumentException("Cannot write to directory [" + dir
          + "]");
    }
  }
}