Potion Effect While Wearing Armor

package com.josh.joshsmod.items;

import com.josh.joshsmod.JoshsMod;

import net.minecraft.client.renderer.texture.IIconRegister;
import net.minecraft.entity.Entity;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.ItemArmor;
import net.minecraft.item.ItemStack;
import net.minecraft.potion.Potion;
import net.minecraft.potion.PotionEffect;
import net.minecraft.world.World;

public class JoshsArmor extends ItemArmor {

	public JoshsArmor(ArmorMaterial material, int renderIndex,
			int armorSlot) {
		super(material, renderIndex, armorSlot);
	}
	 @Override
     public String getArmorTexture(ItemStack stack, Entity entity, int slot, String layer)
     {
             if(stack.getItem().equals(JoshsMod.superBoots)||
                             stack.getItem().equals(JoshsMod.superChestplate)||
                             stack.getItem().equals(JoshsMod.superHelmet)){
                     return "joshsmod:textures/models/armor/diamond_layer_1 copy.png";
             }

             if(stack.getItem().equals(JoshsMod.superLeggings)){
                     return "joshsmod:textures/models/armor/diamond_layer_2 copy.png";
             }

             else return null;
     }
Put code right here!
	   }
   }


     @Override
     public void registerIcons(IIconRegister reg){
             if(this == JoshsMod.superHelmet)
                     this.itemIcon = reg.registerIcon(JoshsMod.modid + ":" + "diamond_helmet copy");
             if(this == JoshsMod.superChestplate)
                 this.itemIcon = reg.registerIcon(JoshsMod.modid + ":" + "diamond_chestplate copy");
             if(this == JoshsMod.superLeggings)
                 this.itemIcon = reg.registerIcon(JoshsMod.modid + ":" + "diamond_leggings copy");
             if(this == JoshsMod.superBoots)
                 this.itemIcon = reg.registerIcon(JoshsMod.modid + ":" + "diamond_boots copy");
     }
}

Code:

   public void onArmorTick(World world, EntityPlayer player, ItemStack ItemStack)
   {
	   if(player.getCurrentArmor(3) != null){
		   ItemStack helmet = player.getCurrentArmor(3);
		   if(helmet.getItem() == examplemod.armorpiece){
			   player.addPotionEffect(new PotionEffect(Potion.potionName.getId(), -1, 255));
			   //player.addPotionEffect(new PotionEffect(Potion.potionName.getId(), -1 (infinite) , level));
		   }