package org.dromara.workflow.service.impl;
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import cn.hutool.core.collection.CollUtil;
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import cn.hutool.core.lang.tree.Tree;
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import cn.hutool.core.util.ObjectUtil;
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import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
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import com.baomidou.mybatisplus.core.toolkit.Wrappers;
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import lombok.RequiredArgsConstructor;
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import org.dromara.common.core.constant.SystemConstants;
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import org.dromara.common.core.exception.ServiceException;
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import org.dromara.common.core.utils.*;
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import org.dromara.common.mybatis.helper.DataBaseHelper;
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import org.dromara.common.satoken.utils.LoginHelper;
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import org.dromara.warm.flow.core.service.DefService;
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import org.dromara.warm.flow.orm.entity.FlowDefinition;
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import org.dromara.workflow.common.ConditionalOnEnable;
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import org.dromara.workflow.common.constant.FlowConstant;
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import org.dromara.workflow.domain.FlowCategory;
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import org.dromara.workflow.domain.bo.FlowCategoryBo;
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import org.dromara.workflow.domain.vo.FlowCategoryVo;
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import org.dromara.workflow.mapper.FlwCategoryMapper;
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import org.dromara.workflow.service.IFlwCategoryService;
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import org.springframework.cache.annotation.CacheEvict;
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import org.springframework.cache.annotation.Cacheable;
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import org.springframework.stereotype.Service;
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import java.util.ArrayList;
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import java.util.List;
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/**
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* 流程分类Service业务层处理
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*
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* @author may
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*/
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@ConditionalOnEnable
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@RequiredArgsConstructor
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@Service
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public class FlwCategoryServiceImpl implements IFlwCategoryService {
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private final DefService defService;
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private final FlwCategoryMapper baseMapper;
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/**
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* 查询流程分类
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*
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* @param categoryId 主键
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* @return 流程分类
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*/
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@Override
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public FlowCategoryVo queryById(Long categoryId) {
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FlowCategoryVo category = baseMapper.selectVoById(categoryId);
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if (ObjectUtil.isNull(category)) {
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return null;
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}
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FlowCategoryVo parentCategory = baseMapper.selectVoOne(new LambdaQueryWrapper<FlowCategory>()
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.select(FlowCategory::getCategoryName).eq(FlowCategory::getCategoryId, category.getParentId()));
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category.setParentName(ObjectUtils.notNullGetter(parentCategory, FlowCategoryVo::getCategoryName));
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return category;
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}
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/**
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* 根据流程分类ID查询流程分类名称
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*
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* @param categoryId 流程分类ID
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* @return 流程分类名称
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*/
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@Cacheable(cacheNames = FlowConstant.FLOW_CATEGORY_NAME, key = "#categoryId")
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@Override
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public String selectCategoryNameById(Long categoryId) {
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if (ObjectUtil.isNull(categoryId)) {
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return null;
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}
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FlowCategory category = baseMapper.selectOne(new LambdaQueryWrapper<FlowCategory>()
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.select(FlowCategory::getCategoryName).eq(FlowCategory::getCategoryId, categoryId));
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return ObjectUtils.notNullGetter(category, FlowCategory::getCategoryName);
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}
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/**
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* 查询符合条件的流程分类列表
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*
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* @param bo 查询条件
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* @return 流程分类列表
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*/
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@Override
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public List<FlowCategoryVo> queryList(FlowCategoryBo bo) {
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LambdaQueryWrapper<FlowCategory> lqw = buildQueryWrapper(bo);
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return baseMapper.selectVoList(lqw);
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}
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/**
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* 查询流程分类树结构信息
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*
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* @param category 流程分类信息
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* @return 流程分类树信息集合
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*/
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@Override
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public List<Tree<String>> selectCategoryTreeList(FlowCategoryBo category) {
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LambdaQueryWrapper<FlowCategory> lqw = buildQueryWrapper(category);
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List<FlowCategoryVo> categorys = baseMapper.selectVoList(lqw);
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if (CollUtil.isEmpty(categorys)) {
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return CollUtil.newArrayList();
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}
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// 获取当前列表中每一个节点的parentId，然后在列表中查找是否有id与其parentId对应，若无对应，则表明此时节点列表中，该节点在当前列表中属于顶级节点
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List<Tree<String>> treeList = CollUtil.newArrayList();
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for (FlowCategoryVo d : categorys) {
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String parentId = d.getParentId().toString();
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FlowCategoryVo categoryVo = StreamUtils.findFirst(categorys, it -> it.getCategoryId().toString().equals(parentId));
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if (ObjectUtil.isNull(categoryVo)) {
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List<Tree<String>> trees = TreeBuildUtils.build(categorys, parentId, (dept, tree) ->
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tree.setId(dept.getCategoryId().toString())
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.setParentId(dept.getParentId().toString())
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.setName(dept.getCategoryName())
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.setWeight(dept.getOrderNum()));
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Tree<String> tree = StreamUtils.findFirst(trees, it -> it.getId().equals(d.getCategoryId().toString()));
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treeList.add(tree);
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}
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}
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return treeList;
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}
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/**
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* 校验流程分类是否有数据权限
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*
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* @param categoryId 流程分类ID
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*/
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@Override
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public void checkCategoryDataScope(Long categoryId) {
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if (ObjectUtil.isNull(categoryId)) {
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return;
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}
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if (LoginHelper.isSuperAdmin()) {
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return;
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}
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if (baseMapper.countCategoryById(categoryId) == 0) {
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throw new ServiceException("没有权限访问流程分类数据！");
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}
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}
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/**
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* 校验流程分类名称是否唯一
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*
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* @param category 流程分类信息
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* @return 结果
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*/
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@Override
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public boolean checkCategoryNameUnique(FlowCategoryBo category) {
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boolean exist = baseMapper.exists(new LambdaQueryWrapper<FlowCategory>()
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.eq(FlowCategory::getCategoryName, category.getCategoryName())
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.eq(FlowCategory::getParentId, category.getParentId())
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.ne(ObjectUtil.isNotNull(category.getCategoryId()), FlowCategory::getCategoryId, category.getCategoryId()));
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return !exist;
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}
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/**
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* 查询流程分类是否存在流程定义
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*
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* @param categoryId 流程分类ID
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* @return 结果 true 存在 false 不存在
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*/
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@Override
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public boolean checkCategoryExistDefinition(Long categoryId) {
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FlowDefinition definition = new FlowDefinition();
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definition.setCategory(categoryId.toString());
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return defService.exists(definition);
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}
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/**
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* 是否存在流程分类子节点
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*
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* @param categoryId 流程分类ID
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* @return 结果
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*/
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@Override
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public boolean hasChildByCategoryId(Long categoryId) {
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return baseMapper.exists(new LambdaQueryWrapper<FlowCategory>()
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.eq(FlowCategory::getParentId, categoryId));
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}
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private LambdaQueryWrapper<FlowCategory> buildQueryWrapper(FlowCategoryBo bo) {
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LambdaQueryWrapper<FlowCategory> lqw = Wrappers.lambdaQuery();
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lqw.eq(FlowCategory::getDelFlag, SystemConstants.NORMAL);
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lqw.eq(ObjectUtil.isNotNull(bo.getCategoryId()), FlowCategory::getCategoryId, bo.getCategoryId());
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lqw.eq(ObjectUtil.isNotNull(bo.getParentId()), FlowCategory::getParentId, bo.getParentId());
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lqw.like(StringUtils.isNotBlank(bo.getCategoryName()), FlowCategory::getCategoryName, bo.getCategoryName());
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lqw.orderByAsc(FlowCategory::getAncestors);
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lqw.orderByAsc(FlowCategory::getParentId);
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lqw.orderByAsc(FlowCategory::getOrderNum);
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lqw.orderByAsc(FlowCategory::getCategoryId);
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return lqw;
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}
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/**
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* 新增流程分类
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*
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* @param bo 流程分类
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* @return 是否新增成功
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*/
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@Override
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public int insertByBo(FlowCategoryBo bo) {
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FlowCategory info = baseMapper.selectById(bo.getParentId());
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FlowCategory category = MapstructUtils.convert(bo, FlowCategory.class);
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category.setAncestors(info.getAncestors() + StringUtils.SEPARATOR + category.getParentId());
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return baseMapper.insert(category);
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}
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/**
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* 修改流程分类
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*
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* @param bo 流程分类
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* @return 是否修改成功
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*/
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@CacheEvict(cacheNames = FlowConstant.FLOW_CATEGORY_NAME, key = "#bo.categoryId")
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@Override
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public int updateByBo(FlowCategoryBo bo) {
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FlowCategory category = MapstructUtils.convert(bo, FlowCategory.class);
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FlowCategory oldCategory = baseMapper.selectById(category.getCategoryId());
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if (ObjectUtil.isNull(oldCategory)) {
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throw new ServiceException("流程分类不存在，无法修改");
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}
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if (!oldCategory.getParentId().equals(category.getParentId())) {
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// 如果是新父流程分类 则校验是否具有新父流程分类权限 避免越权
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this.checkCategoryDataScope(category.getParentId());
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FlowCategory newParentCategory = baseMapper.selectById(category.getParentId());
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if (ObjectUtil.isNotNull(newParentCategory)) {
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String newAncestors = newParentCategory.getAncestors() + StringUtils.SEPARATOR + newParentCategory.getCategoryId();
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String oldAncestors = oldCategory.getAncestors();
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category.setAncestors(newAncestors);
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updateCategoryChildren(category.getCategoryId(), newAncestors, oldAncestors);
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}
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} else {
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category.setAncestors(oldCategory.getAncestors());
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}
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return baseMapper.updateById(category);
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}
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/**
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* 修改子元素关系
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*
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* @param categoryId 被修改的流程分类ID
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* @param newAncestors 新的父ID集合
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* @param oldAncestors 旧的父ID集合
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*/
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private void updateCategoryChildren(Long categoryId, String newAncestors, String oldAncestors) {
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List<FlowCategory> children = baseMapper.selectList(new LambdaQueryWrapper<FlowCategory>()
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.apply(DataBaseHelper.findInSet(categoryId, "ancestors")));
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List<FlowCategory> list = new ArrayList<>();
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for (FlowCategory child : children) {
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FlowCategory category = new FlowCategory();
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category.setCategoryId(child.getCategoryId());
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category.setAncestors(child.getAncestors().replaceFirst(oldAncestors, newAncestors));
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list.add(category);
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}
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if (CollUtil.isNotEmpty(list)) {
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baseMapper.updateBatchById(list);
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}
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}
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/**
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* 删除流程分类信息
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*
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* @param categoryId 主键
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* @return 是否删除成功
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*/
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@CacheEvict(cacheNames = FlowConstant.FLOW_CATEGORY_NAME, key = "#categoryId")
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@Override
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public int deleteWithValidById(Long categoryId) {
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return baseMapper.deleteById(categoryId);
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}
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}
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