Java tutorial
/* * Copyright 2005-2013 shopxx.net. All rights reserved. * Support: http://www.shopxx.net * License: http://www.shopxx.net/license */ package net.shopxx.service.impl; import java.math.BigDecimal; import java.util.Date; import java.util.List; import javax.annotation.Resource; import javax.persistence.LockModeType; import javax.servlet.http.HttpServletRequest; import net.shopxx.Principal; import net.shopxx.Setting; import net.shopxx.dao.DepositDao; import net.shopxx.dao.MerchantDao; import net.shopxx.entity.Admin; import net.shopxx.entity.Deposit; import net.shopxx.entity.Merchant; import net.shopxx.service.MerchantService; import net.shopxx.util.SettingUtils; import org.apache.commons.lang.StringUtils; import org.springframework.stereotype.Service; import org.springframework.transaction.annotation.Transactional; import org.springframework.util.Assert; import org.springframework.web.context.request.RequestAttributes; import org.springframework.web.context.request.RequestContextHolder; import org.springframework.web.context.request.ServletRequestAttributes; /** * Service - * * @author SHOP++ Team * @version 3.0 */ @Service("merchantServiceImpl") public class MerchantServiceImpl extends BaseServiceImpl<Merchant, Long> implements MerchantService { @Resource(name = "merchantDaoImpl") private MerchantDao merchantDao; @Resource(name = "depositDaoImpl") private DepositDao depositDao; @Resource(name = "merchantDaoImpl") public void setBaseDao(MerchantDao merchantDao) { super.setBaseDao(merchantDao); } @Transactional(readOnly = true) public boolean usernameExists(String username) { return merchantDao.usernameExists(username); } @Transactional(readOnly = true) public boolean usernameDisabled(String username) { Assert.hasText(username); Setting setting = SettingUtils.get(); if (setting.getDisabledUsernames() != null) { for (String disabledUsername : setting.getDisabledUsernames()) { if (StringUtils.containsIgnoreCase(username, disabledUsername)) { return true; } } } return false; } @Transactional(readOnly = true) public boolean emailExists(String email) { return merchantDao.emailExists(email); } @Transactional(readOnly = true) public boolean emailUnique(String previousEmail, String currentEmail) { if (StringUtils.equalsIgnoreCase(previousEmail, currentEmail)) { return true; } else { if (merchantDao.emailExists(currentEmail)) { return false; } else { return true; } } } public void save(Merchant merchant, Admin operator) { Assert.notNull(merchant); merchantDao.persist(merchant); if (merchant.getBalance().compareTo(new BigDecimal(0)) > 0) { Deposit deposit = new Deposit(); // deposit.setType(operator != null ? Deposit.Type.adminRecharge : Deposit.Type.merchantRecharge); deposit.setCredit(merchant.getBalance()); deposit.setDebit(new BigDecimal(0)); deposit.setBalance(merchant.getBalance()); deposit.setOperator(operator != null ? operator.getUsername() : null); deposit.setMerchant(merchant); depositDao.persist(deposit); } } public void update(Merchant merchant, Integer modifyPoint, BigDecimal modifyBalance, String depositMemo, Admin operator) { Assert.notNull(merchant); merchantDao.lock(merchant, LockModeType.PESSIMISTIC_WRITE); if (modifyPoint != null && modifyPoint != 0 && merchant.getPoint() + modifyPoint >= 0) { merchant.setPoint(merchant.getPoint() + modifyPoint); } if (modifyBalance != null && modifyBalance.compareTo(new BigDecimal(0)) != 0 && merchant.getBalance().add(modifyBalance).compareTo(new BigDecimal(0)) >= 0) { merchant.setBalance(merchant.getBalance().add(modifyBalance)); Deposit deposit = new Deposit(); if (modifyBalance.compareTo(new BigDecimal(0)) > 0) { // deposit.setType(operator != null ? Deposit.Type.adminRecharge : Deposit.Type.merchantRecharge); deposit.setCredit(modifyBalance); deposit.setDebit(new BigDecimal(0)); } else { // deposit.setType(operator != null ? Deposit.Type.adminChargeback : Deposit.Type.merchantPayment); deposit.setCredit(new BigDecimal(0)); deposit.setDebit(modifyBalance); } deposit.setBalance(merchant.getBalance()); deposit.setOperator(operator != null ? operator.getUsername() : null); deposit.setMemo(depositMemo); deposit.setMerchant(merchant); depositDao.persist(deposit); } merchantDao.merge(merchant); } @Transactional(readOnly = true) public Merchant findByUsername(String username) { return merchantDao.findByUsername(username); } @Transactional(readOnly = true) public List<Merchant> findListByEmail(String email) { return merchantDao.findListByEmail(email); } @Transactional(readOnly = true) public List<Object[]> findPurchaseList(Date beginDate, Date endDate, Integer count) { return merchantDao.findPurchaseList(beginDate, endDate, count); } @Transactional(readOnly = true) public boolean isAuthenticated() { RequestAttributes requestAttributes = RequestContextHolder.currentRequestAttributes(); if (requestAttributes != null) { HttpServletRequest request = ((ServletRequestAttributes) requestAttributes).getRequest(); Principal principal = (Principal) request.getSession().getAttribute(Merchant.PRINCIPAL_ATTRIBUTE_NAME); if (principal != null) { return true; } } return false; } @Transactional(readOnly = true) public Merchant getCurrent() { RequestAttributes requestAttributes = RequestContextHolder.currentRequestAttributes(); if (requestAttributes != null) { HttpServletRequest request = ((ServletRequestAttributes) requestAttributes).getRequest(); Principal principal = (Principal) request.getSession().getAttribute(Merchant.PRINCIPAL_ATTRIBUTE_NAME); if (principal != null) { return merchantDao.find(principal.getId()); } } return null; } @Transactional(readOnly = true) public String getCurrentUsername() { RequestAttributes requestAttributes = RequestContextHolder.currentRequestAttributes(); if (requestAttributes != null) { HttpServletRequest request = ((ServletRequestAttributes) requestAttributes).getRequest(); Principal principal = (Principal) request.getSession().getAttribute(Merchant.PRINCIPAL_ATTRIBUTE_NAME); if (principal != null) { return principal.getUsername(); } } return null; } }