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- 新增视频查看权限相关数据结构和接口 - 实现用户视频查看记录的创建和更新逻辑 - 添加视频查看权限的检查和记录功能 -优化分布式环境下的并发控制
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package com.ycwl.basic.service.mobile;
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import com.ycwl.basic.biz.OrderBiz;
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import com.ycwl.basic.integration.common.manager.ScenicConfigManager;
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import com.ycwl.basic.model.mobile.order.IsBuyRespVO;
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import com.ycwl.basic.model.mobile.video.dto.VideoViewPermissionDTO;
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import com.ycwl.basic.model.pc.video.entity.UserVideoViewEntity;
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import com.ycwl.basic.model.pc.video.entity.VideoEntity;
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import com.ycwl.basic.repository.ScenicRepository;
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import com.ycwl.basic.repository.UserVideoViewRepository;
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import com.ycwl.basic.repository.VideoRepository;
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import lombok.RequiredArgsConstructor;
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import lombok.extern.slf4j.Slf4j;
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import org.springframework.stereotype.Service;
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import java.util.Map;
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/**
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* 视频查看权限服务
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* 处理用户查看vlog视频的权限控制和记录
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*/
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@Slf4j
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@Service
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@RequiredArgsConstructor
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public class VideoViewPermissionService {
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private final UserVideoViewRepository userVideoViewRepository;
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private final VideoRepository videoRepository;
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private final ScenicRepository scenicRepository;
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private final OrderBiz orderBiz;
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/**
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* 检查并记录用户查看视频
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*
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* @param userId 用户ID
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* @param videoId 视频ID
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* @return 查看权限信息
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*/
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public VideoViewPermissionDTO checkAndRecordView(Long userId, Long videoId) {
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try {
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// 获取视频信息
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VideoEntity video = videoRepository.getVideo(videoId);
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if (video == null) {
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log.warn("视频不存在: videoId={}", videoId);
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return createErrorPermission("视频不存在");
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}
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Long scenicId = video.getScenicId();
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if (scenicId == null) {
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log.warn("视频缺少景区信息: videoId={}", videoId);
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return createErrorPermission("视频信息不完整");
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}
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// 检查用户是否已购买
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IsBuyRespVO buy = orderBiz.isBuy(userId, scenicId, 0, videoId);
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if (buy != null && (buy.isBuy() || buy.isFree())) {
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// 已购买，不限制查看
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log.debug("用户已购买视频，无查看限制: userId={}, videoId={}", userId, videoId);
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return VideoViewPermissionDTO.createUnlimitedPermission(0);
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}
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// 使用分布式锁执行查看记录操作
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VideoViewPermissionDTO result = userVideoViewRepository.executeWithLock(userId, videoId, () -> {
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try {
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// 获取景区配置
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ScenicConfigManager scenicConfig = scenicRepository.getScenicConfigManager(scenicId);
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// 解析配置参数
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Integer vlogViewLimit = scenicConfig.getInteger("vlog_view_limit", 0);
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Integer vlogTimeLimit = scenicConfig.getInteger("vlog_time_limit", 0);
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// 获取用户查看记录
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UserVideoViewEntity viewRecord = userVideoViewRepository.getViewRecord(userId, videoId);
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int currentViewCount = 0;
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if (viewRecord == null) {
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// 首次查看，创建记录
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viewRecord = userVideoViewRepository.createViewRecord(userId, videoId, scenicId);
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currentViewCount = 1;
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} else {
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// 增加查看次数
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currentViewCount = viewRecord.getViewCount() + 1;
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userVideoViewRepository.updateViewCount(userId, videoId, currentViewCount);
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}
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// 根据配置判断权限
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return calculatePermission(currentViewCount, vlogViewLimit, vlogTimeLimit);
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} catch (Exception e) {
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log.error("检查视频查看权限失败: userId={}, videoId={}", userId, videoId, e);
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return createErrorPermission("系统异常，请稍后重试");
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}
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});
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return result != null ? result : createErrorPermission("获取权限信息失败");
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} catch (Exception e) {
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log.error("检查并记录视频查看失败: userId={}, videoId={}", userId, videoId, e);
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return createErrorPermission("系统异常，请稍后重试");
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}
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}
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/**
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* 仅检查用户查看权限，不记录查看次数
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*
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* @param userId 用户ID
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* @param videoId 视频ID
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* @return 查看权限信息
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*/
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public VideoViewPermissionDTO checkViewPermission(Long userId, Long videoId) {
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try {
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// 获取视频信息
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VideoEntity video = videoRepository.getVideo(videoId);
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if (video == null) {
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return createErrorPermission("视频不存在");
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}
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Long scenicId = video.getScenicId();
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if (scenicId == null) {
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return createErrorPermission("视频信息不完整");
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}
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// 检查用户是否已购买
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IsBuyRespVO buy = orderBiz.isBuy(userId, scenicId, 0, videoId);
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if (buy != null && (buy.isBuy() || buy.isFree())) {
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// 已购买，不限制查看
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log.debug("用户已购买视频，无查看限制: userId={}, videoId={}", userId, videoId);
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return VideoViewPermissionDTO.createUnlimitedPermission(0);
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}
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// 获取景区配置
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ScenicConfigManager scenicConfig = scenicRepository.getScenicConfigManager(scenicId);
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// 解析配置参数
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Integer vlogViewLimit = scenicConfig.getInteger("vlog_view_limit", 0);
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Integer vlogTimeLimit = scenicConfig.getInteger("vlog_time_limit", 0);
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// 获取用户查看记录
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UserVideoViewEntity viewRecord = userVideoViewRepository.getViewRecord(userId, videoId);
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int currentViewCount = viewRecord != null ? viewRecord.getViewCount() : 0;
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// 根据配置判断权限
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return calculatePermission(currentViewCount, vlogViewLimit, vlogTimeLimit);
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} catch (Exception e) {
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log.error("检查视频查看权限失败: userId={}, videoId={}", userId, videoId, e);
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return createErrorPermission("系统异常，请稍后重试");
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}
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}
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/**
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* 根据配置计算查看权限
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*
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* @param currentViewCount 当前查看次数
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* @param vlogViewLimit 视频查看次数限制
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* @param vlogTimeLimit 时间限制（秒）
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* @return 查看权限信息
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*/
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private VideoViewPermissionDTO calculatePermission(int currentViewCount, Integer vlogViewLimit, Integer vlogTimeLimit) {
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// 1. 两个值都为0或负数则为不限制
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if ((vlogViewLimit == null || vlogViewLimit <= 0) && (vlogTimeLimit == null || vlogTimeLimit <= 0)) {
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return VideoViewPermissionDTO.createUnlimitedPermission(currentViewCount);
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}
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// 2. vlog_view_limit为0则仅通过vlog_time_limit限制
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if (vlogViewLimit == null || vlogViewLimit <= 0) {
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if (vlogTimeLimit != null && vlogTimeLimit > 0) {
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return VideoViewPermissionDTO.createTimeLimitPermission(currentViewCount, 0, vlogTimeLimit);
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} else {
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return VideoViewPermissionDTO.createUnlimitedPermission(currentViewCount);
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}
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}
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// 3. vlog_view_limit不为0，判断是否超过次数限制
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if (currentViewCount <= vlogViewLimit) {
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// 未超过次数限制，可完整查看
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return VideoViewPermissionDTO.createFullViewPermission(currentViewCount, vlogViewLimit);
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} else {
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// 已超过次数限制
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if (vlogTimeLimit == null || vlogTimeLimit <= 0) {
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// 4. vlog_time_limit为0就不允许查看了
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return VideoViewPermissionDTO.createNoPermission(currentViewCount, vlogViewLimit);
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} else {
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// 通过时间限制查看
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return VideoViewPermissionDTO.createTimeLimitPermission(currentViewCount, vlogViewLimit, vlogTimeLimit);
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}
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}
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}
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/**
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* 解析配置值
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*
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* @param config 配置Map
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* @param key 配置键
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* @param defaultValue 默认值
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* @return 解析后的值
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*/
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private Integer parseConfigValue(Map<String, Object> config, String key, Integer defaultValue) {
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if (config == null || !config.containsKey(key)) {
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return defaultValue;
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}
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Object value = config.get(key);
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if (value instanceof Number) {
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return ((Number) value).intValue();
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} else if (value instanceof String) {
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try {
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return Integer.valueOf((String) value);
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} catch (NumberFormatException e) {
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log.warn("配置值解析失败: key={}, value={}, 使用默认值: {}", key, value, defaultValue);
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return defaultValue;
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}
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}
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return defaultValue;
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}
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/**
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* 创建错误权限对象
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*
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* @param message 错误消息
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* @return 错误权限对象
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*/
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private VideoViewPermissionDTO createErrorPermission(String message) {
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VideoViewPermissionDTO dto = new VideoViewPermissionDTO();
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dto.setCanView(false);
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dto.setMessage(message);
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return dto;
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}
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}
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