@Override public void saveFriend(ArrayList<AppUser> appUserList) throws InnerException { try { // 循环取appUser for (AppUser appUser : appUserList) { App app = appDao.findById(appUser.getApp().getId()); // 跳过app不存在的appUser if (app == null) continue; Set<AppUser> friends = appUser.getFriends(); Iterator<AppUser> iterator = friends.iterator(); List<AppUser> friendsPersisted = new ArrayList<AppUser>(); // 循环取朋友名 while (iterator.hasNext()) { AppUser friend = iterator.next(); // 查找朋友是否已存在数据库 List<AppUser> list = appUserDao.findByUserIdAndApp(friend.getUserId(), app); // 保存不存在的朋友,若存在,删除列表中的脱管对象,插入持久态对象 if (list.size() == 0) { friend.setCreateTime(System.currentTimeMillis()); appUserDao.save(friend); } else { friendsPersisted.add(list.get(0)); iterator.remove(); } } friends.addAll(friendsPersisted); // 如果appUser不存在,保存;若存在,更新朋友列表 List<AppUser> list = appUserDao.findByUserIdAndApp(appUser.getUserId(), app); if (list.size() == 0) { appUser.setCreateTime(System.currentTimeMillis()); appUserDao.save(appUser); } else { AppUser appUserPersisted = list.get(0); appUserPersisted.setFriends(appUser.getFriends()); appUserDao.update(appUserPersisted); } } } catch (RuntimeException re) { log.error("error saving friend: " + re.toString()); throw new InnerException(); } }
@Override public void saveGroup(HashSet<AppUser> appUserSet) throws InnerException { Set<AppUser> contain = new HashSet<AppUser>(); TreeMap<Integer, TreeSet<String>> map = new TreeMap<Integer, TreeSet<String>>(); try { // 循环取appUser,插入不存在的appUser,然后将组插入TreeMap(为了排序), // TreeMap按key(appid)排序,value(appUserIds:可能一个应用同时等两个号)按自然排序 for (AppUser appUser : appUserSet) { App app = appDao.findById(appUser.getApp().getId()); if (app != null) { List<AppUser> list = appUserDao.findByUserIdAndApp(appUser.getUserId(), app); if (list.size() == 0) { appUser.setCreateTime(System.currentTimeMillis()); appUserDao.save(appUser); put(map, appUser); contain.add(appUser); } else { put(map, appUser); contain.add(list.get(0)); } } } // 如果这个组大于1个用户,通过containString查看之前有无相同的组,没有就存入 if (contain.size() > 1) { String containString = map.toString(); List<AppUserGroup> list = appUserGroupDao.findByProperty("containString", containString); if (list.size() == 0) { AppUserGroup appUserGroup = new AppUserGroup(); appUserGroup.setContainString(containString); appUserGroup.setCreateTime(System.currentTimeMillis()); appUserGroup.setContains(contain); appUserGroupDao.save(appUserGroup); } } } catch (RuntimeException re) { log.error("error saving group: " + re.toString()); throw new InnerException(); } }
@Override public AppUser findAppUser(String userId, Integer appId) throws InnerException, OuterException { try { App app = appDao.findById(appId); if (app == null) throw new OuterException("error.app.not.exist"); List<AppUser> list = appUserDao.findByUserIdAndApp(userId, app); if (list.size() == 0) throw new OuterException("error.appUser.not.exist"); return list.get(0); } catch (RuntimeException re) { log.error("runtimeException: " + re.toString()); throw new InnerException("system.internal.error"); } }