/*******************************************************************************
* Copyright (c) 2005, 2014 springside.github.io
*
* Licensed under the Apache License, Version 2.0 (the "License");
*******************************************************************************/
package org.springside.examples.showcase.service;
import java.util.List;
import java.util.Map;
import org.javasimon.aop.Monitored;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.transaction.annotation.Transactional;
import org.springside.examples.showcase.demos.cache.memcached.MemcachedObjectType;
import org.springside.examples.showcase.entity.Team;
import org.springside.examples.showcase.entity.User;
import org.springside.examples.showcase.repository.mybatis.TeamMybatisDao;
import org.springside.examples.showcase.repository.mybatis.UserMybatisDao;
import org.springside.modules.cache.memcached.SpyMemcachedClient;
import org.springside.modules.mapper.JsonMapper;
import com.google.common.collect.Maps;
/**
* 更高效的AccountService实现，基于MyBatis + Memcached的方案，以JSON格式存储Memcached中的内容。
*
* @author calvin
*/
@Component
@Transactional
@Monitored
public class AccountEffectiveService {
@Autowired
private UserMybatisDao userDao;
@Autowired
private TeamMybatisDao teamDao;
@Autowired(required = false)
private SpyMemcachedClient memcachedClient;
private final JsonMapper jsonMapper = JsonMapper.nonDefaultMapper();
public Team getTeamWithDetail(Long id) {
return teamDao.getWithDetail(id);
}
public User getUser(Long id) {
if (memcachedClient != null) {
return getUserWithMemcached(id);
} else {
return userDao.get(id);
}
}
/**
* 先访问Memcached, 使用JSON字符串存放对象以节约空间.
*/
private User getUserWithMemcached(Long id) {
String key = MemcachedObjectType.USER.getPrefix() + id;
String jsonString = memcachedClient.get(key);
if (jsonString != null) {
return jsonMapper.fromJson(jsonString, User.class);
} else {
User user = userDao.get(id);
if (user != null) {
jsonString = jsonMapper.toJson(user);
memcachedClient.set(key, MemcachedObjectType.USER.getExpiredTime(), jsonString);
}
return user;
}
}
public List<User> searchUser(String loginName, String name) {
Map<String, Object> parameters = Maps.newHashMap();
parameters.put("loginName", loginName);
parameters.put("name", name);
return userDao.search(parameters);
}
public void saveUser(User user) {
userDao.save(user);
}
public void deleteUser(Long id) {
userDao.delete(id);
}
}