Setting the duration of a Potion ItemStack

How would I go about setting the duration and level of a potion before adding it to a players inventory? Right now I can give them a potion with max level and the regular time.... I've been trying all sorts of things with the Potion and PotionEffect and PotionEffectType stuff and it isn't working.. I'm trying to use something that I won't have to use NBT code for. Any help would be much appreciated.

Bump... Sorry, I really need to figure this out.

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

Get the ID of the potion you want, then set it like

Code:java

new ItemStack(Material.POTION, 1, (short)<data>);

 

Code:java

 
 
That sets the potion type doesn't it? I need something that will set the duration of the effect.

 

The data short will handle all of the type, tier, and duration.
http://www.minecraftwiki.net/wiki/Data_Values#Potions

 

Oh, sorry. I misread, I thought it said durability. xD. You could cancel the event when they are drinking the potion, then get the item ID and check if it's X then set the duration of it.

 

bump

 

You could cast its ItemMeta to PotionMeta and add a custom effect that will overwrite the main effect.

 

Thx!! PotionMeta makes quite the difference!!

 

no problem you can like my post if you want

 

Can you give me a code sample for setting the duration with PotionMeta? Thanks.