/**
* There are <a href="https://github.com/ketayao/keta-custom">keta-custom</a> code generation
*/
package com.ketayao.ketacustom.service.impl;
import java.util.ArrayList;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.jpa.domain.Specification;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import com.ketayao.ketacustom.dao.OrganizationDAO;
import com.ketayao.ketacustom.dao.UserDAO;
import com.ketayao.ketacustom.entity.main.Organization;
import com.ketayao.ketacustom.exception.NotDeletedException;
import com.ketayao.ketacustom.exception.NotExistedException;
import com.ketayao.ketacustom.service.OrganizationService;
import com.ketayao.ketacustom.util.dwz.Page;
import com.ketayao.ketacustom.util.dwz.PageUtils;
@Service
@Transactional
public class OrganizationServiceImpl implements OrganizationService {
@Autowired
private OrganizationDAO organizationDAO;
@Autowired
private UserDAO userDAO;
/*
* (non-Javadoc)
* @see com.ketayao.ketacustom.service.OrganizationService#get(java.lang.Long)
*/
@Override
public Organization get(Long id) {
return organizationDAO.findOne(id);
}
/* (non-Javadoc)
* @see com.ketayao.ketacustom.service.OrganizationService#getByName(java.lang.String)
*/
@Override
public Organization getByName(String name) {
return organizationDAO.getByName(name);
}
/*
* (non-Javadoc)
* @see com.ketayao.ketacustom.service.OrganizationService#saveOrUpdate(com.ketayao.ketacustom.entity.main.Organization)
*/
@Override
public void saveOrUpdate(Organization organization) {
if (organization.getId() == null) {
Organization parentOrganization = organizationDAO.findOne(organization.getParent().getId());
if (parentOrganization == null) {
throw new NotExistedException("id=" + organization.getParent().getId() + "父组织不存在！");
}
if (organizationDAO.getByName(organization.getName()) != null) {
throw new NotExistedException(organization.getName() + "已存在！");
}
}
organizationDAO.save(organization);
}
/*
* (non-Javadoc)
* @see com.ketayao.ketacustom.service.OrganizationService#delete(java.lang.Long)
*/
@Override
public void delete(Long id) {
if (isRoot(id)) {
throw new NotDeletedException("不允许删除根组织。");
}
Organization organization = this.get(id);
//先判断是否存在子模块，如果存在子模块，则不允许删除
if(organization.getChildren().size() > 0){
throw new NotDeletedException(organization.getName() + "组织下存在子组织，不允许删除。");
}
if (userDAO.findByOrganizationId(id).size() > 0) {
throw new NotDeletedException(organization.getName() + "组织下存在用户，不允许删除。");
}
organizationDAO.delete(organization);
}
/*
* (non-Javadoc)
* @see com.ketayao.ketacustom.service.OrganizationService#findAll(com.ketayao.ketacustom.util.dwz.Page)
*/
@Override
public List<Organization> findAll(Page page) {
org.springframework.data.domain.Page<Organization> springDataPage = organizationDAO.findAll(PageUtils.createPageable(page));
page.setTotalCount(springDataPage.getTotalElements());
return springDataPage.getContent();
}
/*
* (non-Javadoc)
* @see com.ketayao.ketacustom.service.OrganizationService#findByExample(org.springframework.data.jpa.domain.Specification, com.ketayao.ketacustom.util.dwz.Page)
*/
@Override
public List<Organization> findByExample(
Specification<Organization> specification, Page page) {
org.springframework.data.domain.Page<Organization> springDataPage = organizationDAO.findAll(specification, PageUtils.createPageable(page));
page.setTotalCount(springDataPage.getTotalElements());
return springDataPage.getContent();
}
/* (non-Javadoc)
* @see com.ketayao.ketacustom.service.OrganizationService#getTree()
*/
@Override
public Organization getTree() {
List<Organization> list = organizationDAO.findAllWithCache();
List<Organization> rootList = makeTree(list);
return rootList.get(0);
}
/**
* 判断是否是根组织.
*/
private boolean isRoot(Long id) {
return id == 1;
}
private List<Organization> makeTree(List<Organization> list) {
List<Organization> parent = new ArrayList<Organization>();
// get parentId = null;
for (Organization e : list) {
if (e.getParent() == null) {
e.setChildren(new ArrayList<Organization>(0));
parent.add(e);
}
}
// 删除parentId = null;
list.removeAll(parent);
makeChildren(parent, list);
return parent;
}
private void makeChildren(List<Organization> parent, List<Organization> children) {
if (children.isEmpty()) {
return ;
}
List<Organization> tmp = new ArrayList<Organization>();
for (Organization c1 : parent) {
for (Organization c2 : children) {
c2.setChildren(new ArrayList<Organization>(0));
if (c1.getId().equals(c2.getParent().getId())) {
c1.getChildren().add(c2);
tmp.add(c2);
}
}
}
children.removeAll(tmp);
makeChildren(tmp, children);
}
}