com.dp2345.service.impl.CartServiceImpl.java Source code

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Here is the source code for com.dp2345.service.impl.CartServiceImpl.java

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/*
 * Copyright 2013-2015 cetvision.com. All rights reserved.
 * Support: http://www.cetvision.com
 * License: http://www.cetvision.com/license
 */
package com.dp2345.service.impl;

import java.util.Date;
import java.util.Iterator;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;

import org.apache.commons.lang.StringUtils;
import org.apache.commons.lang.time.DateUtils;
import org.springframework.stereotype.Service;
import org.springframework.web.context.request.RequestAttributes;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

import com.dp2345.Principal;
import com.dp2345.dao.CartDao;
import com.dp2345.dao.CartItemDao;
import com.dp2345.dao.MemberDao;
import com.dp2345.entity.Cart;
import com.dp2345.entity.CartItem;
import com.dp2345.entity.Member;
import com.dp2345.entity.Product;
import com.dp2345.service.CartService;
import com.dp2345.util.WebUtils;

/**
 * Service - 
 * 
 * @author CETVISION CORP
 * @version 2.0.3
 */
@Service("cartServiceImpl")
public class CartServiceImpl extends BaseServiceImpl<Cart, Long> implements CartService {

    @Resource(name = "cartDaoImpl")
    private CartDao cartDao;
    @Resource(name = "cartItemDaoImpl")
    private CartItemDao cartItemDao;
    @Resource(name = "memberDaoImpl")
    private MemberDao memberDao;

    @Resource(name = "cartDaoImpl")
    public void setBaseDao(CartDao cartDao) {
        super.setBaseDao(cartDao);
    }

    public Cart getCurrent() {
        RequestAttributes requestAttributes = RequestContextHolder.currentRequestAttributes();
        if (requestAttributes != null) {
            HttpServletRequest request = ((ServletRequestAttributes) requestAttributes).getRequest();
            Principal principal = (Principal) request.getSession().getAttribute(Member.PRINCIPAL_ATTRIBUTE_NAME);
            Member member = principal != null ? memberDao.find(principal.getId()) : null;
            if (member != null) {
                Cart cart = member.getCart();
                if (cart != null) {
                    if (!cart.hasExpired()) {
                        if (!DateUtils.isSameDay(cart.getModifyDate(), new Date())) {
                            cart.setModifyDate(new Date());
                            cartDao.merge(cart);
                        }
                        return cart;
                    } else {
                        cartDao.remove(cart);
                    }
                }
            } else {
                String id = WebUtils.getCookie(request, Cart.ID_COOKIE_NAME);
                String key = WebUtils.getCookie(request, Cart.KEY_COOKIE_NAME);
                if (StringUtils.isNotEmpty(id) && StringUtils.isNumeric(id) && StringUtils.isNotEmpty(key)) {
                    Cart cart = cartDao.find(Long.valueOf(id));
                    if (cart != null && cart.getMember() == null && StringUtils.equals(cart.getKey(), key)) {
                        if (!cart.hasExpired()) {
                            if (!DateUtils.isSameDay(cart.getModifyDate(), new Date())) {
                                cart.setModifyDate(new Date());
                                cartDao.merge(cart);
                            }
                            return cart;
                        } else {
                            cartDao.remove(cart);
                        }
                    }
                }
            }
        }
        return null;
    }

    public void merge(Member member, Cart cart) {
        if (member != null && cart != null && cart.getMember() == null) {
            Cart memberCart = member.getCart();
            if (memberCart != null) {
                for (Iterator<CartItem> iterator = cart.getCartItems().iterator(); iterator.hasNext();) {
                    CartItem cartItem = iterator.next();
                    Product product = cartItem.getProduct();
                    if (memberCart.contains(product)) {
                        if (Cart.MAX_PRODUCT_COUNT != null
                                && memberCart.getCartItems().size() > Cart.MAX_PRODUCT_COUNT) {
                            continue;
                        }
                        CartItem item = memberCart.getCartItem(product);
                        item.add(cartItem.getQuantity());
                        cartItemDao.merge(item);
                    } else {
                        if (Cart.MAX_PRODUCT_COUNT != null
                                && memberCart.getCartItems().size() >= Cart.MAX_PRODUCT_COUNT) {
                            continue;
                        }
                        iterator.remove();
                        cartItem.setCart(memberCart);
                        memberCart.getCartItems().add(cartItem);
                        cartItemDao.merge(cartItem);
                    }
                }
                cartDao.remove(cart);
            } else {
                member.setCart(cart);
                cart.setMember(member);
                cartDao.merge(cart);
            }
        }
    }

    public void evictExpired() {
        cartDao.evictExpired();
    }

}