projjpn/projjpn/src/main/java/de/hs_fulda/ciip/projjpn/Warehouse.java

package de.hs_fulda.ciip.projjpn;

import java.util.HashMap;

public class Warehouse {
	protected HashMap<String, Item> pool = new HashMap<String, Item>();

	/**
	 * 
	 * @param item Item to insert.
	 * @return the inserted Item or null.
	 */
	public Item insertItem(Item item) {
		return pool.putIfAbsent(item.getTitel(), item);
	}

	/**
	 * 
	 * @return The total amount of all Items.
	 */
	public int getCountOfStock() {
		int sumItems = 0;
        for (HashMap.Entry<String, Item> set : pool.entrySet()) {
        	sumItems += set.getValue().getCurrentStock();
        }
		return sumItems;
	}
}