public static void flipLever(String arena, boolean isPowered) {
    List leverList = MobUtilities.getPlugin().getConfig().getStringList("levers");

    for (String leverData : leverList)
      if (leverData.startsWith(arena)) {
        String[] leverBits = leverData.split(",");

        World world = MobUtilities.getPlugin().getServer().getWorld(leverBits[1]);
        double x = Double.parseDouble(leverBits[2]); double y = Double.parseDouble(leverBits[3]); double z = Double.parseDouble(leverBits[4]);

        Block block = new Location(world, x, y, z).getBlock();
        Lever lever = (Lever)block.getState().getData();
        lever.setPowered(isPowered);
        block.setData(lever.getData(), true);

        break;
      }
  }