package org.dromara.workflow.service.impl;
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import cn.hutool.core.collection.CollUtil;
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import cn.hutool.core.convert.Convert;
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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.warm.flow.core.service.DefService;
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import org.dromara.warm.flow.orm.entity.FlowDefinition;
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import org.dromara.warm.flow.ui.service.CategoryService;
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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 org.springframework.transaction.annotation.Transactional;
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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, CategoryService {
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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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return baseMapper.selectVoById(categoryId);
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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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List<FlowCategoryVo> categoryList = this.queryList(category);
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if (CollUtil.isEmpty(categoryList)) {
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return CollUtil.newArrayList();
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}
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return TreeBuildUtils.buildMultiRoot(
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categoryList,
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node -> Convert.toStr(node.getCategoryId()),
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node -> Convert.toStr(node.getParentId()),
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(node, treeNode) -> treeNode
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.setId(Convert.toStr(node.getCategoryId()))
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.setParentId(Convert.toStr(node.getParentId()))
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.setName(node.getCategoryName())
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.setWeight(node.getOrderNum())
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);
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}
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/**
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* 工作流查询分类
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*
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* @return 分类树结构列表
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*/
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@Override
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public List<org.dromara.warm.flow.core.dto.Tree> queryCategory() {
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List<FlowCategoryVo> list = this.queryList(new FlowCategoryBo());
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return StreamUtils.toList(list, category -> new org.dromara.warm.flow.core.dto.Tree()
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.setId(Convert.toStr(category.getCategoryId()))
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.setName(category.getCategoryName())
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.setParentId(Convert.toStr(category.getParentId()))
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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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if (ObjectUtil.isNull(info)) {
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throw new ServiceException("父级流程分类不存在!");
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}
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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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@Transactional(rollbackFor = Exception.class)
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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() == 0L && category.getParentId() != 0L) {
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throw new ServiceException("不允许修改顶级分类的父级节点");
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}
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if (!oldCategory.getParentId().equals(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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} else {
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throw new ServiceException("父级流程分类不存在!");
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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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