net.shopxx.service.impl.CouponCodeServiceImpl.java Source code

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Here is the source code for net.shopxx.service.impl.CouponCodeServiceImpl.java

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/*
 * Copyright 2005-2015 shopxx.net. All rights reserved.
 * Support: http://3936242.01p.com/
 * License: http://3936242.01p.com/license
 */
package net.shopxx.service.impl;

import java.util.ArrayList;
import java.util.List;
import java.util.UUID;

import javax.annotation.Resource;

import net.shopxx.Page;
import net.shopxx.Pageable;
import net.shopxx.dao.CouponCodeDao;
import net.shopxx.entity.Admin;
import net.shopxx.entity.Coupon;
import net.shopxx.entity.CouponCode;
import net.shopxx.entity.Member;
import net.shopxx.entity.PointLog;
import net.shopxx.service.CouponCodeService;
import net.shopxx.service.MemberService;

import org.apache.commons.codec.digest.DigestUtils;
import org.apache.commons.lang.RandomStringUtils;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.Assert;

@Service("couponCodeServiceImpl")
public class CouponCodeServiceImpl extends BaseServiceImpl<CouponCode, Long> implements CouponCodeService {

    @Resource(name = "couponCodeDaoImpl")
    private CouponCodeDao couponCodeDao;
    @Resource(name = "memberServiceImpl")
    private MemberService memberService;

    @Transactional(readOnly = true)
    public boolean codeExists(String code) {
        return couponCodeDao.codeExists(code);
    }

    @Transactional(readOnly = true)
    public CouponCode findByCode(String code) {
        return couponCodeDao.findByCode(code);
    }

    public CouponCode generate(Coupon coupon, Member member) {
        Assert.notNull(coupon);

        CouponCode couponCode = new CouponCode();
        couponCode.setCode(coupon.getPrefix()
                + DigestUtils.md5Hex(UUID.randomUUID() + RandomStringUtils.randomAlphabetic(30)).toUpperCase());
        couponCode.setIsUsed(false);
        couponCode.setCoupon(coupon);
        couponCode.setMember(member);
        return super.save(couponCode);
    }

    public List<CouponCode> generate(Coupon coupon, Member member, Integer count) {
        Assert.notNull(coupon);
        Assert.notNull(count);

        List<CouponCode> couponCodes = new ArrayList<CouponCode>();
        for (int i = 0; i < count; i++) {
            CouponCode couponCode = generate(coupon, member);
            couponCodes.add(couponCode);
            if (i % 50 == 0) {
                couponCodeDao.flush();
                couponCodeDao.clear();
            }
        }
        return couponCodes;
    }

    public CouponCode exchange(Coupon coupon, Member member, Admin operator) {
        Assert.notNull(coupon);
        Assert.notNull(coupon.getPoint());
        Assert.state(coupon.getIsEnabled() && coupon.getIsExchange() && !coupon.hasExpired());
        Assert.notNull(member);
        Assert.notNull(member.getPoint());
        Assert.state(member.getPoint() >= coupon.getPoint());

        if (coupon.getPoint() > 0) {
            memberService.addPoint(member, -coupon.getPoint(), PointLog.Type.exchange, operator, null);
        }

        return generate(coupon, member);
    }

    @Transactional(readOnly = true)
    public Page<CouponCode> findPage(Member member, Pageable pageable) {
        return couponCodeDao.findPage(member, pageable);
    }

    @Transactional(readOnly = true)
    public Long count(Coupon coupon, Member member, Boolean hasBegun, Boolean hasExpired, Boolean isUsed) {
        return couponCodeDao.count(coupon, member, hasBegun, hasExpired, isUsed);
    }

}