246 lines
9.9 KiB
Java
246 lines
9.9 KiB
Java
package com.yunhai.bschclassmanage.service.impl;
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import com.alibaba.fastjson.JSON;
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import com.yunhai.bschclassmanage.Repository.SchClassRepository;
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import com.yunhai.bschclassmanage.Repository.SchDicCampusRepository;
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import com.yunhai.bschclassmanage.annotation.OperationLog;
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import com.yunhai.bschclassmanage.entity.SchDicCampus;
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import com.yunhai.bschclassmanage.model.constant.LogModule;
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import com.yunhai.bschclassmanage.model.entityField.EntityFieldNames;
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import com.yunhai.bschclassmanage.model.vo.SelectIntVO;
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import com.yunhai.bschclassmanage.service.ISchDicCampusService;
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import com.yunhai.bschclassmanage.utils.*;
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import com.yunhai.platform.utils.exception.DException;
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import lombok.extern.slf4j.Slf4j;
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import org.springframework.beans.BeanUtils;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.data.jpa.domain.Specification;
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import org.springframework.stereotype.Service;
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import org.springframework.transaction.annotation.Transactional;
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import javax.persistence.criteria.Predicate;
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import java.util.*;
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import java.util.function.Function;
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import java.util.stream.Collectors;
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@Slf4j
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@Service
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public class SchDicCampusService implements ISchDicCampusService {
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@Autowired
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private SchDicCampusRepository schDicCampusRepository;
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@Autowired
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private SchClassRepository schClassRepository;
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@Autowired
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private RedisUtil redisUtil;
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public List<SchDicCampus> getSchDicCampusList(Integer schId) {
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Specification<SchDicCampus> spec = (root, query, cb) -> {
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List<Predicate> predicates = new ArrayList<>();
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predicates.add(cb.equal(root.get(EntityFieldNames.schId), schId));
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return cb.and(predicates.toArray(new Predicate[0]));
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};
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return schDicCampusRepository.findAll(spec);
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}
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// 获取学校院校列表（带缓存）
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public List<SchDicCampus> getSchDicCampusCacheList(Integer schId) {
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String cacheKey = RedisConstants.SCHOOL_CAMPUS + "_" + schId;
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if (redisUtil.hasKey(cacheKey)) {
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// 注意：返回副本或不可变列表，避免外部修改影响缓存
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return redisUtil.getList(cacheKey,SchDicCampus.class);
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}
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// 同步查询数据库，防止缓存击穿
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synchronized (this) {
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if (redisUtil.hasKey(cacheKey)) {
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return redisUtil.getList(cacheKey,SchDicCampus.class);
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}
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List<SchDicCampus> list = getSchDicCampusList(schId);
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// 根据 sort 字段升序排序，null 值排在最后
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list.sort(Comparator.comparing(SchDicCampus::getSort,
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Comparator.nullsLast(Comparator.naturalOrder())));
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redisUtil.set(cacheKey, new ArrayList<>(list), RedisConstants.CACHE_EXPIRE_30D);
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return list;
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}
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}
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@OperationLog(module = LogModule.CAMPUS)
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@Transactional(rollbackFor = Exception.class)
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public void saveSchCampus(UserContext.UserInfo user, SchDicCampus entity) {
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Integer schId=user.getSchId();
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boolean isNew=entity.getId() == null || entity.getId() == 0;
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// 参数校验
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if (entity.getName() == null || entity.getName().trim().isEmpty())
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throw new DException("校区名称不能为空");
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boolean nameExists;
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SchDicCampus oldEntity=null;
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if (isNew) {
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// 新增：检查同名校区
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nameExists = schDicCampusRepository.existsBySchIdAndName(schId, entity.getName());
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if (nameExists) {
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throw new DException("校区名称已存在：" + entity.getName());
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}
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OtherUtil.setBaseEntityValue(user, entity);
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schDicCampusRepository.save(entity);
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} else {
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// 更新：排除自身，检查其他校区同名
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nameExists = schDicCampusRepository.existsBySchIdAndNameAndIdNot(schId, entity.getName(), entity.getId());
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if (nameExists) {
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throw new DException("校区名称已存在：" + entity.getName());
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}
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Integer entityId=entity.getId();
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SchDicCampus existing = schDicCampusRepository.findById(entityId)
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.orElseThrow(() -> new DException("校区不存在，ID=" + entityId));
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oldEntity=OtherUtil.deepCopy(existing,SchDicCampus.class);
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OtherUtil.setBaseEntityValue(user, entity);
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BeanUtils.copyProperties(entity, existing,
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EntityFieldNames.id,
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EntityFieldNames.schId,
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EntityFieldNames.code,
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EntityFieldNames.createDate,
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EntityFieldNames.createUserId);
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entity=schDicCampusRepository.save(existing);
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}
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// 清除缓存
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String cacheKey = RedisConstants.SCHOOL_CAMPUS + "_" + schId;
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redisUtil.del(cacheKey);
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{
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String description = buildCampusLogDescription(entity,isNew,oldEntity);
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LogContextHolder.setDescription(description);
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}
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}
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/**
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* 构建学部操作的详细日志描述
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*/
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private String buildCampusLogDescription(SchDicCampus newEntity,boolean isNew,SchDicCampus oldEntity) {
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if (isNew) {
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return String.format("新增校区：%s（序号：%d）",
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newEntity.getName(),
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newEntity.getSort() != null ? newEntity.getSort() : 0);
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} else {
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List<String> changes = new ArrayList<>();
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if (!Objects.equals(oldEntity.getName(), newEntity.getName())) {
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changes.add(String.format("名称从 '%s' 修改为 '%s'", oldEntity.getName(), newEntity.getName()));
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}
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if (!Objects.equals(oldEntity.getSort(), newEntity.getSort())) {
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changes.add(String.format("序号从 %d 修改为 %d", oldEntity.getSort(), newEntity.getSort()));
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}
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if (changes.isEmpty()) {
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return "更新校区：无实际变更";
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}
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return "更新校区：" + String.join("；", changes);
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}
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}
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@OperationLog(module = LogModule.CAMPUS)
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@Transactional(rollbackFor = Exception.class)
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public void sortSchCampus(UserContext.UserInfo user,List<Integer> ids)
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{
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List<SchDicCampus> campusList = getSchDicCampusCacheList(user.getSchId());
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Map<Integer, SchDicCampus> campusMap = campusList.stream()
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.collect(Collectors.toMap(SchDicCampus::getId, Function.identity()));
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Date now = new Date();
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// 1. 按传入顺序更新 sort 值
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int sortOrder = 1;
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for (Integer id : ids) {
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SchDicCampus campus = campusMap.get(id);
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if (campus != null) {
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campus.setSort(sortOrder++);
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campus.setUpdateDate(now);
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campus.setUpdateUserId(user.getUserId());
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}
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}
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// 2. 处理未出现在排序列表中的校区（设置 sort = null 或一个大值）
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for (SchDicCampus campus : campusList) {
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if (!ids.contains(campus.getId())) {
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campus.setSort(null); // 或者设置一个最大值，比如 999
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campus.setUpdateDate(now);
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campus.setUpdateUserId(user.getUserId());
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}
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}
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// 批量保存
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schDicCampusRepository.saveAll(campusList);
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String cacheKey = RedisConstants.SCHOOL_CAMPUS + "_" + user.getSchId();
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redisUtil.del(cacheKey);
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{
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String names = ids.stream()
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.map(id -> {
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SchDicCampus m = campusMap.get(id);
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return m != null ? m.getName() : String.valueOf(id);
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})
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.collect(Collectors.joining("、"));
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String description = String.format("调整校区排序：共 %d 个专业（列表：%s）", ids.size(), names);
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LogContextHolder.setDescription(description);
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}
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}
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/**
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* 删除校区
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* 1. 参数非空校验
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* 2. 校验校区是否存在（匹配学校+校区ID，防止跨学校删除）
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* 3. 校验校区是否绑定班级，存在关联则禁止删除
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* 4. 删除数据库数据 + 清除对应学校校区缓存
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* @param id 校区ID
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*/
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@OperationLog(module = LogModule.CAMPUS)
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@Transactional(rollbackFor = Exception.class)
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public void delete(UserContext.UserInfo user, Integer id) {
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// 1. 参数合法性校验
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if (user.getSchId() == null || id == null) {
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throw new DException("学校ID、校区ID不能为空");
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}
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// 2. 校验当前学校下该校区是否存在，防止越权删除其他学校校区
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SchDicCampus campus = schDicCampusRepository.findByIdAndSchId(id, user.getSchId())
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.orElseThrow(() -> new DException("校区不存在，无法删除"));
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// 3. 业务校验：判断校区是否关联班级，有班级则禁止删除
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long bindClassCount = schClassRepository.countByCampusId(id);
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if (bindClassCount > 0) {
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throw new DException(String.format("该校区下存在%s个班级，不可删除，请先移除班级关联", bindClassCount));
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}
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// 4. 删除数据
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schDicCampusRepository.delete(campus);
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// 5. 清除当前学校校区缓存
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String cacheKey = RedisConstants.SCHOOL_CAMPUS + "_" + user.getSchId();
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redisUtil.del(cacheKey);
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LogContextHolder.setDescription("删除校区："+campus.getName());
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log.debug("操作人：{}，删除校区日志：{}", user.getUserName(), JSON.toJSONString(campus));
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}
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public List<SelectIntVO> select(Integer schId) {
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List<SchDicCampus> list = getSchDicCampusCacheList(schId);
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return ModelMapperUtil.toSelectIntVOList(list, SchDicCampus::getId, SchDicCampus::getName);
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}
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public Map<Integer, String> toIdAndNameMap(Integer schId) {
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List<SchDicCampus> list = getSchDicCampusCacheList(schId);
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return ModelMapperUtil.toMap(list, SchDicCampus::getId, SchDicCampus::getName);
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}
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}
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