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278 lines
11 KiB
278 lines
11 KiB
/*
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* Copyright (c) 2019. 黄钰朝
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.hyc.wechat.service.impl;
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import com.hyc.wechat.dao.ChatDao;
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import com.hyc.wechat.dao.FriendDao;
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import com.hyc.wechat.dao.MessageDao;
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import com.hyc.wechat.dao.UserDao;
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import com.hyc.wechat.exception.DaoException;
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import com.hyc.wechat.factory.DaoProxyFactory;
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import com.hyc.wechat.model.dto.ServiceResult;
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import com.hyc.wechat.model.po.Chat;
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import com.hyc.wechat.model.po.Friend;
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import com.hyc.wechat.model.po.Message;
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import com.hyc.wechat.model.po.User;
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import com.hyc.wechat.service.FriendService;
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import com.hyc.wechat.service.constants.MessageType;
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import com.hyc.wechat.service.constants.ServiceMessage;
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import com.hyc.wechat.service.constants.Status;
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import java.sql.Timestamp;
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import java.util.LinkedList;
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import java.util.List;
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import static com.hyc.wechat.service.constants.ServiceMessage.*;
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/**
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* @author <a href="mailto:kobe524348@gmail.com">黄钰朝</a>
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* @description 负责提供好友相关服务
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* @date 2019-05-06 07:07
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*/
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public class FriendServiceImpl implements FriendService {
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private final FriendDao friendDao = (FriendDao) DaoProxyFactory.getInstance().getProxyInstance(FriendDao.class);
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private final UserDao userDao = (UserDao) DaoProxyFactory.getInstance().getProxyInstance(UserDao.class);
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private final ChatDao chatDao = (ChatDao) DaoProxyFactory.getInstance().getProxyInstance(ChatDao.class);
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private final MessageDao messageDao = (MessageDao)DaoProxyFactory.getInstance().getProxyInstance(MessageDao.class);
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/**
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* 添加好友关系
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*
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* @param friend 要添加的好友关系
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* @return
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* @name addFriend
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* @notice none
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* @author <a href="mailto:kobe524348@gmail.com">黄钰朝</a>
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* @date 2019/5/6
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*/
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@Override
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synchronized public ServiceResult addFriend(Friend friend) {
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if (friend == null) {
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return new ServiceResult(Status.ERROR, PARAMETER_NOT_ENOUGHT.message, friend);
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}
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//检查是否是2个用户
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if (friend.getFriendId().equals(friend.getUserId())) {
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return new ServiceResult(Status.ERROR, CANNOT_ADD_YOURSELF.message, friend);
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}
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//检查是否已经是好友
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if (isFriend(friend)) {
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return new ServiceResult(Status.ERROR, ALREADY_FRIEND.message, friend);
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}
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//用于发送好友通知
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Message message = new Message();
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try {
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//检查是否添加过好友，不可重复添加
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if (friendDao.getFriendByUIDAndFriendId(friend.getUserId(), friend.getFriendId()) != null) {
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return new ServiceResult(Status.ERROR, ALREADY_ADD_FRIEND.message, friend);
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}
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//检查好友是否存在
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if (userDao.getUserById(friend.getFriendId()) == null) {
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return new ServiceResult(Status.ERROR, FRIEND_NOT_EXIST.message, friend);
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}
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//检查用户是否存在
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User user = userDao.getUserById(friend.getUserId());
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if (user == null) {
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return new ServiceResult(Status.ERROR, ACCOUNT_NOT_FOUND.message, friend);
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}
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//设置好友默认备注为好友昵称
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if (friend.getAlias() == null) {
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User friendUser = userDao.getUserById(friend.getFriendId());
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friend.setAlias(friendUser.getName());
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}
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//添加好友
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if (friendDao.insert(friend) != 1) {
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return new ServiceResult(Status.ERROR, DATABASE_ERROR.message, friend);
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}
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//添加好友后如果已经双向加好友，则不用发申请，而是把之前的申请消息删除
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if(isFriend(friend)){
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//查询自己与系统建立的聊天,用于查找发送好友申请那条消息并删除
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message.setSenderId(friend.getFriendId());
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Friend systemFriend = friendDao.getFriendByUIDAndFriendId(friend.getUserId(),UserServiceImpl.systemId);
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if(systemFriend==null){
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return new ServiceResult(Status.ERROR, DATABASE_ERROR.message, friend);
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}
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message.setChatId(systemFriend.getChatId());
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messageDao.delete(message);
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}else {
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//如果对方是普通用户，需要发送加好友通知
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if (!UserServiceImpl.systemId.equals(friend.getFriendId()) && !UserServiceImpl.systemId.equals(friend.getUserId())) {
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//获取好友与系统的聊天，用于推送通知
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Friend systemFriend = friendDao.getFriendByUIDAndFriendId(UserServiceImpl.systemId, friend.getFriendId());
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//生成一条加好友通知消息
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message.setChatId(systemFriend.getChatId());
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message.setSenderId(user.getId());
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message.setContent("好友申请：" + friend.getDescription());
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message.setType(MessageType.FRIEND.toString());
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message.setTime(new Timestamp(System.currentTimeMillis()));
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}
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}
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} catch (DaoException e) {
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e.printStackTrace();
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return new ServiceResult(Status.ERROR, DATABASE_ERROR.message, friend);
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}
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return new ServiceResult(Status.SUCCESS, ADD_FRIEND_SUCCESS.message, message);
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}
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/**
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* 返回一个用户的好友列表
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*
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* @param userId 用户id
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* @return
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* @name listFriend
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* @notice none
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* @author <a href="mailto:kobe524348@gmail.com">黄钰朝</a>
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* @date 2019/5/6
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*/
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@Override
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public ServiceResult listFriend(Object userId) {
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if (userId == null) {
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return new ServiceResult(Status.ERROR, PARAMETER_NOT_ENOUGHT.message, null);
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}
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List<Friend> friendList = new LinkedList<>();
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try {
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List<Friend> list = friendDao.listByUserId(userId);
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//只返回双向添加为好友的关系
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for (Friend friend : list) {
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if (isFriend(friend)) {
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friendList.add(friend);
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}
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}
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if (friendList.size() == 0) {
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return new ServiceResult(Status.SUCCESS, ServiceMessage.NO_FRIEND_NOW.message, userId);
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}
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} catch (DaoException e) {
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e.printStackTrace();
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return new ServiceResult(Status.ERROR, ServiceMessage.DATABASE_ERROR.message, userId);
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}
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return new ServiceResult(Status.SUCCESS, null, friendList);
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}
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/**
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* 更新好友信息
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*
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* @param friend 朋友
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* @name updateFriend
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* @notice none
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* @author <a href="mailto:kobe524348@gmail.com">黄钰朝</a>
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* @date 2019/5/6
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*/
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@Override
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public ServiceResult updateFriend(Friend friend) {
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if (friend == null) {
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return new ServiceResult(Status.ERROR, PARAMETER_NOT_ENOUGHT.message, null);
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}
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try {
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//检查成员是否存在
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if (friendDao.getFriendById(friend.getId()) == null) {
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return new ServiceResult(Status.ERROR, FRIEND_NOT_EXIST.message, friend);
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}
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if (friendDao.update(friend) != 1) {
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return new ServiceResult(Status.ERROR, DATABASE_ERROR.message, friend);
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}
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} catch (DaoException e) {
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e.printStackTrace();
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return new ServiceResult(Status.ERROR, ServiceMessage.DATABASE_ERROR.message, friend);
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}
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return new ServiceResult(Status.SUCCESS, UPDATE_FRIEND_SUCCESS.message, friend);
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}
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/**
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* 移除好友
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*
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* @param friend 要移除的好友关系
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* @return
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* @name removeFriend
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* @notice none
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* @author <a href="mailto:kobe524348@gmail.com">黄钰朝</a>
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* @date 2019/5/6
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*/
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@Override
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synchronized public ServiceResult removeFriend(Friend friend) {
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if (friend == null) {
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return new ServiceResult(Status.ERROR, PARAMETER_NOT_ENOUGHT.message, friend);
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}
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try {
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//检查成员是否存在
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if (friendDao.getFriendByUIDAndFriendId(friend.getUserId(), friend.getFriendId()) != null) {
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//将该成员从聊天中移除
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if (friendDao.delete(friend) != 1) {
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return new ServiceResult(Status.ERROR, DATABASE_ERROR.message, friend);
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}
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//将对方的的朋友记录也删除
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friend = friendDao.getFriendByUIDAndFriendId(friend.getFriendId(), friend.getUserId());
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if (friendDao.delete(friend) != 1) {
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return new ServiceResult(Status.ERROR, DATABASE_ERROR.message, friend);
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}
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}
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} catch (DaoException e) {
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e.printStackTrace();
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return new ServiceResult(Status.ERROR, ServiceMessage.DATABASE_ERROR.message, friend);
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}
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return new ServiceResult(Status.SUCCESS, ServiceMessage.DELETE_FRIEND_SUCCESS.message, friend);
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}
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/**
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* 判断是否存在一条这样的朋友记录
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*
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* @param friend 判断该朋友关系是否是双向的
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* @name isFriend
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* @notice none
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* @author <a href="mailto:kobe524348@gmail.com">黄钰朝</a>
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* @date 2019/5/6
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*/
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@Override
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public boolean isFriend(Friend friend) {
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try {
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Friend reverseFriend = friendDao.getFriendByUIDAndFriendId(friend.getFriendId(), friend.getUserId());
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friend = friendDao.getFriendByUIDAndFriendId(friend.getUserId(), friend.getFriendId());
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if (reverseFriend == null || friend == null) {
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//反向查询没有结果则是单向的
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return false;
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}
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} catch (DaoException e) {
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e.printStackTrace();
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}
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return true;
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}
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/**
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* 通过用户id和朋友id查询朋友关系
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*
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* @param uid 用户id
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* @param friendId 朋友id
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* @return
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* @name getByUidAndFriendId
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* @notice none
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* @author <a href="mailto:kobe524348@gmail.com">黄钰朝</a>
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* @date 2019/5/6
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*/
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@Override
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public Friend getByUidAndFriendId(Object uid, Object friendId) {
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Friend friend = null;
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try {
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friend = friendDao.getFriendByUIDAndFriendId(uid, friendId);
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} catch (DaoException e) {
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e.printStackTrace();
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}
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return friend;
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}
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}
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