Plugin Help Preventing sword blocking

I was wondering if there is a way to stop people from blocking with a sword. So if they right click and the item in their hand is a sword, the sword wont move.. Here is what i tried...

Code:

@EventHandler
    public void onBlock(PlayerInteractEvent e) {
        Action a = e.getAction();
        Player p = e.getPlayer();
        if (a == Action.RIGHT_CLICK_AIR || a == Action.RIGHT_CLICK_BLOCK) {
            if (p.getItemInHand().getType().equals(Material.IRON_SWORD)) {
                e.setCancelled(true);
                return;

            }
        }

    }

Please help!

 

@HCMatt Sword blocking is a client side animation, so cannot be disabled. If you wanted to prevent the damage being reduced, you can use the EntityDamageEntityEvent and check if player.isBlocking();