ShoppingCartRepository.java

/*
 * Copyright 2010-2013, CloudBees Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.cloudbees.demo.beesshop.domain;

import org.springframework.stereotype.Repository;

import javax.annotation.Nonnull;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;

/**
 * @author <a href="mailto:cleclerc@cloudbees.com">Cyrille Le Clerc</a>
 */
@Repository
public class ShoppingCartRepository {

    @Nonnull
    public ShoppingCart getCurrentShoppingCart(@Nonnull HttpServletRequest request) {
        HttpSession session = request.getSession();
        ShoppingCart shoppingCart = (ShoppingCart) session.getAttribute(ShoppingCart.class.getName());
        if (shoppingCart == null) {
            shoppingCart = new ShoppingCart();
            session.setAttribute(ShoppingCart.class.getName(), shoppingCart);
        }
        return shoppingCart;
    }

    public void resetCurrentShoppingCart(@Nonnull HttpServletRequest request){
        request.getSession().removeAttribute(ShoppingCart.class.getName());
    }
}