Because the department manager approval has not been added in the process designer before, this function is added this time
The interface is as follows:
At the same time, multi-instance configuration can be performed for multiple department managers, as shown in the following figure:
1. Front-end implementation
Mainly modify the userTask.vue file.
<template>
<div style="margin-top: 16px">
<el-row>
<h4><b>设置用户类型</b></h4>
<el-radio-group v-model="defaultTaskForm.dataType" @change="changeDataType">
<div v-if="bDisplayUser">
<el-radio label="ASSIGNEE">指定用户</el-radio>
<el-radio label="INITIATOR">发起人</el-radio>
</div>
<el-radio label="MANAGER">部门经理</el-radio>
<el-radio label="USERS">候选用户</el-radio>
<el-radio label="ROLES">候选角色</el-radio>
</el-radio-group>
</el-row>
<el-row>
<div v-if="defaultTaskForm.dataType === 'ASSIGNEE'">
<el-select v-model="userTaskForm.assignee" filterable allow-create clearable @change="updateElementTask('assignee')">
<el-option v-for="ak in users" :key="ak.id" :label="ak.name" :value="ak.id" />
</el-select>
</div>
</el-row>
<el-row>
<div v-if="defaultTaskForm.dataType === 'USERS'">
<el-select v-model="userTaskForm.candidateUsers" filterable allow-create multiple collapse-tags @change="updateElementTask('candidateUsers')">
<el-option v-for="uk in users" :key="uk.id" :label="uk.name" :value="uk.id" />
</el-select>
</div>
</el-row>
<el-row>
<div v-if="defaultTaskForm.dataType === 'ROLES'">
<el-select v-model="userTaskForm.candidateGroups" filterable allow-create multiple collapse-tags @change="updateElementTask('candidateGroups')">
<el-option v-for="gk in groups" :key="gk.id" :label="gk.name" :value="gk.id" />
</el-select>
</div>
</el-row>
<el-row v-if="defaultTaskForm.dataType === 'USERS' || defaultTaskForm.dataType === 'ROLES' || defaultTaskForm.dataType === 'MANAGER'">
<h4><b>多实例</b></h4>
<div>
<element-multi-instance :business-object="bpmnElement.businessObject" @multiInsEvent="multiIns"/>
</div>
</el-row>
<!-- <el-form-item label="到期时间">
<el-input v-model="userTaskForm.dueDate" clearable @change="updateElementTask('dueDate')" />
</el-form-item>
<el-form-item label="跟踪时间">
<el-input v-model="userTaskForm.followUpDate" clearable @change="updateElementTask('followUpDate')" />
</el-form-item>
<el-form-item label="优先级">
<el-input v-model="userTaskForm.priority" clearable @change="updateElementTask('priority')" />
</el-form-item> -->
</div>
</template>
<script>
import ElementMultiInstance from "../../multi-instance/ElementMultiInstance";
export default {
name: "UserTask",
components: {
ElementMultiInstance,
},
props: {
users: {//兼容老系统add by nbacheng
type: Array,
required: true
},
groups: {//兼容老系统
type: Array,
required: true
},
id: String,
type: String
},
data() {
return {
defaultTaskForm: {
assignee: "",
candidateUsers: [],
candidateGroups: [],
dueDate: "",
followUpDate: "",
priority: "",
dataType: "",
},
userTaskForm: {},
bDisplayUser: true,
};
},
watch: {
id: {
immediate: true,
handler() {
this.bpmnElement = window.bpmnInstances.bpmnElement;
console.log("watch this.bpmnElement",this.bpmnElement)
if (this.containsKey(this.bpmnElement.businessObject, 'loopCharacteristics') &&
this.bpmnElement.businessObject.loopCharacteristics != null) {
this.bDisplayUser = false;
if (this.containsKey(this.bpmnElement.businessObject, 'candidateUsers') &&
this.bpmnElement.businessObject.candidateUsers != null) {
this.defaultTaskForm.dataType = "USERS";
}
if (this.containsKey(this.bpmnElement.businessObject, 'candidateUsers') &&
this.bpmnElement.businessObject.candidateUsers === '${DepManagerHandler.getUsers(execution)}') {
this.defaultTaskForm.dataType = "MANAGER";
}
if (this.containsKey(this.bpmnElement.businessObject, 'candidateGroups') &&
this.bpmnElement.businessObject.candidateGroups != null) {
this.defaultTaskForm.dataType = "ROLES";
}
}
else {
if (this.containsKey(this.bpmnElement.businessObject, 'assignee') &&
this.bpmnElement.businessObject.assignee != null) {
this.defaultTaskForm.dataType = "ASSIGNEE";
}
if (this.containsKey(this.bpmnElement.businessObject, 'candidateUsers') &&
this.bpmnElement.businessObject.candidateUsers != null) {
this.defaultTaskForm.dataType = "USERS";
}
if (this.containsKey(this.bpmnElement.businessObject, 'candidateGroups') &&
this.bpmnElement.businessObject.candidateGroups != null) {
this.defaultTaskForm.dataType = "ROLES";
}
if (this.containsKey(this.bpmnElement.businessObject, 'assignee') &&
this.bpmnElement.businessObject.assignee === '${INITIATOR}') {
this.defaultTaskForm.dataType = "INITIATOR";
}
if (this.containsKey(this.bpmnElement.businessObject, 'candidateUsers') &&
this.bpmnElement.businessObject.candidateUsers === '${DepManagerHandler.getUsers(execution)}') {
this.defaultTaskForm.dataType = "MANAGER";
}
}
this.$nextTick(() => this.resetTaskForm());
}
}
},
methods: {
multiIns(val) { //子组件传递是否是多实例
this.bDisplayUser = val;
},
containsKey(obj, key ) {
return Object.keys(obj).includes(key);
},
resetTaskForm() {
for (let key in this.defaultTaskForm) {
let value;
if (key === "candidateUsers" || key === "candidateGroups") {
value = this.bpmnElement?.businessObject[key] ? this.bpmnElement.businessObject[key].split(",") : [];
} else {
value = this.bpmnElement?.businessObject[key] || this.defaultTaskForm[key];
}
this.$set(this.userTaskForm, key, value);
}
},
changeDataType(val) {
// 清空 userTaskForm 所有属性值
//Object.keys(this.userTaskForm).forEach(key => this.userTaskForm[key] = null);
this.userTaskForm.dataType = val;
if (val === 'INITIATOR') {
this.userTaskForm.assignee = "${INITIATOR}";
this.userTaskForm.text = "流程发起人";
const taskAttr = Object.create(null);
taskAttr['candidateUsers'] = null;
taskAttr['candidateGroups'] = null;
this.userTaskForm['candidateUsers'] = null;
this.userTaskForm['candidateGroups'] = null;
taskAttr['assignee'] = this.userTaskForm['assignee'] || null;
window.bpmnInstances.modeling.updateProperties(this.bpmnElement, taskAttr);
}
if (val === 'MANAGER') {
this.userTaskForm.candidateUsers = "${DepManagerHandler.getUsers(execution)}";
this.userTaskForm.text = "部门经理";
const taskAttr = Object.create(null);
taskAttr['assignee'] = null;
taskAttr['candidateGroups'] = null;
this.userTaskForm['assignee'] = null;
this.userTaskForm['candidateGroups'] = null;
taskAttr['candidateUsers'] = this.userTaskForm['candidateUsers'] || null;
window.bpmnInstances.modeling.updateProperties(this.bpmnElement, taskAttr);
}
/*if (val === 'ASSIGNEE' && this.userTaskForm['assignee'] === '${INITIATOR}') {
this.userTaskForm['assignee'] = null;
const taskAttr = Object.create(null);
taskAttr['assignee'] = null;
window.bpmnInstances.modeling.updateProperties(this.bpmnElement, taskAttr);
}
if (val === 'MANAGER' && this.userTaskForm['candidateUsers'] === '${DepManagerHandler.getUsers(execution)}') {
this.userTaskForm['candidateUsers'] = null;
const taskAttr = Object.create(null);
taskAttr['candidateUsers'] = null;
window.bpmnInstances.modeling.updateProperties(this.bpmnElement, taskAttr);
}*/
},
updateElementTask(key) {
const taskAttr = Object.create(null);
if (key === "candidateUsers") {
taskAttr[key] = this.userTaskForm[key] && this.userTaskForm[key].length ? this.userTaskForm[key].join() : null;
if(taskAttr[key] !=null) {
taskAttr['candidateGroups'] = null;
taskAttr['assignee'] = null;
this.userTaskForm['candidateGroups'] = null;
this.userTaskForm['assignee'] = null;
}
}
else if (key === "candidateGroups") {
taskAttr[key] = this.userTaskForm[key] && this.userTaskForm[key].length ? this.userTaskForm[key].join() : null;
if(taskAttr[key] !=null) {
taskAttr['candidateUsers'] = null;
taskAttr['assignee'] = null;
this.userTaskForm['candidateUsers'] = null;
this.userTaskForm['assignee'] = null;
}
}
else if (key === "assignee") {
taskAttr[key] = this.userTaskForm[key] && this.userTaskForm[key].length ? this.userTaskForm[key] : null;
if(taskAttr[key] !=null) {
taskAttr['candidateUsers'] = null;
taskAttr['candidateGroups'] = null;
this.userTaskForm['candidateUsers'] = null;
this.userTaskForm['candidateGroups'] = null;
}
}
else {
taskAttr[key] = this.userTaskForm[key] || null;
}
window.bpmnInstances.modeling.updateProperties(this.bpmnElement, taskAttr);
}
},
beforeDestroy() {
this.bpmnElement = null;
}
};
</script>
2. Backend implementation
1. Add the execution class DepManagerHandler of the department manager as follows:
package com.nbcio.modules.flowable.listener;
import java.util.ArrayList;
import java.util.List;
import org.apache.commons.lang3.StringUtils;
import org.flowable.bpmn.model.FlowElement;
import org.flowable.bpmn.model.UserTask;
import org.flowable.engine.RuntimeService;
import org.flowable.engine.delegate.DelegateExecution;
import org.flowable.engine.runtime.ProcessInstance;
import org.jeecg.common.util.SpringContextUtils;
import org.springframework.stereotype.Component;
import com.nbcio.modules.flowable.apithird.service.IFlowThirdService;
import cn.hutool.core.util.ObjectUtil;
import lombok.AllArgsConstructor;
/**
* 部门经理处理类
*
* @author nbacheng
* @date 2023-08-06
*/
@AllArgsConstructor
@Component("DepManagerHandler")
public class DepManagerHandler {
private IFlowThirdService flowThirdService = SpringContextUtils.getBean(IFlowThirdService.class);
RuntimeService runtimeService = SpringContextUtils.getBean(RuntimeService.class);
public List<String> getUsers(DelegateExecution execution) {
List<String> assignUserName = new ArrayList<String>();
FlowElement flowElement = execution.getCurrentFlowElement();
if (ObjectUtil.isNotEmpty(flowElement) && flowElement instanceof UserTask) {
UserTask userTask = (UserTask) flowElement;
if ( StringUtils.isNotEmpty(userTask.getAssignee())) {
if(StringUtils.contains(userTask.getAssignee(),"DepManagerHandler")) {
// 获取流程发起人
ProcessInstance processInstance = runtimeService
.createProcessInstanceQuery()
.processInstanceId(execution.getProcessInstanceId())
.singleResult();
String startUserId = processInstance.getStartUserId();
// 获取部门负责人列表
List<String> depIds = flowThirdService.getDepartIdsByUsername(startUserId);
List<String> DepHeadlist = new ArrayList<String>();
for(String depId: depIds) {
List<String> depList = flowThirdService.getDeptHeadByDepId(depId);
if(depList != null) {
DepHeadlist.addAll(depList);
}
}
// 部门负责人列表去重
if(!DepHeadlist.isEmpty() ) {
for (String str : DepHeadlist) {
if (!assignUserName.contains(str)) {
assignUserName.add(str);
}
}
}
}
}
}
return assignUserName;
}
}
2. Considering the complexity, set the next approver, do not do any processing here, and let the initiator complete the submission process.
if(Objects.nonNull(nextFlowNode.getUserList())) {
if( nextFlowNode.getUserList().size() == 1 ) {
if (nextFlowNode.getUserList().get(0) != null) {
if(StringUtils.equalsAnyIgnoreCase(nextFlowNode.getUserList().get(0).getUsername(), "${INITIATOR}")) {//对发起人做特殊处理
taskService.complete(task.getId(), variables);
return Result.OK("流程启动成功给发起人.");
}
else if(nextFlowNode.getUserTask().getCandidateUsers().size()>0 && StringUtils.equalsAnyIgnoreCase(nextFlowNode.getUserTask().getCandidateUsers().get(0), "${DepManagerHandler.getUsers(execution)}")) {//对部门经理做特殊处理
//taskService.complete(task.getId(), variables);
return Result.OK("流程启动成功给部门经理,请到我的待办里进行流程的提交流转.");
}
else {
taskService.complete(task.getId(), variables);
return Result.OK("流程启动成功.");
}
}
else {
return Result.error("审批人不存在，流程启动失败!");
}
}
else if(nextFlowNode.getType() == ProcessConstants.PROCESS_MULTI_INSTANCE ) {//对多实例会签做特殊处理或者以后在流程设计进行修改也可以
Map<String, Object> approvalmap = new HashMap<>();
List<String> sysuserlist = nextFlowNode.getUserList().stream().map(obj-> (String) obj.getUsername()).collect(Collectors.toList());
approvalmap.put("approval", sysuserlist);
taskService.complete(task.getId(), approvalmap);
if(!nextFlowNode.isBisSequential()){//对并发会签进行assignee单独赋值
List<Task> nexttasklist = taskService.createTaskQuery().processInstanceId(processInstance.getProcessInstanceId()).active().list();
int i=0;
for (Task nexttask : nexttasklist) {
String assignee = sysuserlist.get(i).toString();
taskService.setAssignee(nexttask.getId(), assignee);
i++;
}
}
return Result.OK("多实例会签流程启动成功.");
}3. getNextFlowNode adds special handling for relevant department managers
/** modify by nbacheng
* 获取下一个节点信息,流程定义上的节点信息
* @param taskId 当前节点id
* @param values 流程变量
* @return 如果返回null，表示没有下一个节点，流程结束
*/
public FlowNextDto getNextFlowNode(String taskId, Map<String, Object> values) {
//当前节点
Task task = taskService.createTaskQuery().taskId(taskId).singleResult();
FlowNextDto flowNextDto = new FlowNextDto();
if (Objects.nonNull(task)) {
// 下个任务节点
if (DelegationState.PENDING.equals(task.getDelegationState())) { //对于委派的处理
List<UserTask> nextUserTask = FindNextNodeUtil.getNextUserTasks(repositoryService, task, values);
if (CollectionUtils.isNotEmpty(nextUserTask)) {
flowNextDto.setType(ProcessConstants.FIXED);//委派是按原来流程执行，所以直接赋值返回
return flowNextDto;
}
else {
return null;
}
}
List<UserTask> nextUserTask = FindNextNodeUtil.getNextUserTasks(repositoryService, task, values);
if (CollectionUtils.isNotEmpty(nextUserTask)) {
for (UserTask userTask : nextUserTask) {
MultiInstanceLoopCharacteristics multiInstance = userTask.getLoopCharacteristics();
// 会签节点
if (Objects.nonNull(multiInstance)) {
List<String> rolelist = new ArrayList<>();
rolelist = userTask.getCandidateGroups();
List<String> userlist = new ArrayList<>();
userlist = userTask.getCandidateUsers();
UserTask newUserTask = userTask;
if(rolelist.size() != 0 && StringUtils.contains(rolelist.get(0), "${flowExp.getDynamic")) {//对表达式多个动态角色做特殊处理
String methodname = StringUtils.substringBetween(rolelist.get(0), ".", "(");
Object[] argsPara=new Object[]{};
setMultiFlowExp(flowNextDto,newUserTask,multiInstance,methodname,argsPara);
}
else if(userlist.size() != 0 && StringUtils.contains(userlist.get(0), "${flowExp.getDynamic")) {//对表达式多个动态用户做特殊处理
String methodname = StringUtils.substringBetween(userlist.get(0), ".", "(");
Object[] argsPara=new Object[]{};
setMultiFlowExp(flowNextDto,newUserTask,multiInstance,methodname,argsPara);
}
else if(userlist.size() != 0 && StringUtils.contains(userlist.get(0), "DepManagerHandler")) {//对部门经理做特殊处理
String methodname = "getInitiatorDepManagers";
// 获取流程发起人
ProcessInstance processInstance = runtimeService
.createProcessInstanceQuery()
.processInstanceId(task.getProcessInstanceId())
.singleResult();
String startUserId = processInstance.getStartUserId();
Object[] argsPara=new Object[]{};
argsPara=new Object[]{startUserId};
setMultiFlowExp(flowNextDto,newUserTask,multiInstance,methodname,argsPara);
}
else if(rolelist.size() > 0) {
List<SysUser> list = new ArrayList<SysUser>();
for(String roleId : rolelist ){
List<SysUser> templist = iFlowThirdService.getUsersByRoleId(roleId);
for(SysUser sysuser : templist) {
SysUser sysUserTemp = iFlowThirdService.getUserByUsername(sysuser.getUsername());
List<String> listdepname = iFlowThirdService.getDepartNamesByUsername(sysuser.getUsername());
if(listdepname.size()>0){
sysUserTemp.setOrgCodeTxt(listdepname.get(0).toString());
}
list.add(sysUserTemp);
}
}
setMultiFlowNetDto(flowNextDto,list,userTask,multiInstance);
}
/*else if(userlist.size()>0 && StringUtils.equalsAnyIgnoreCase(userlist.get(0), "${DepManagerHandler.getUsers(execution)}")) {//对部门经理做特殊处理
List<SysUser> list = new ArrayList<SysUser>();
// 获取流程发起人
ProcessInstance processInstance = runtimeService
.createProcessInstanceQuery()
.processInstanceId(task.getProcessInstanceId())
.singleResult();
String startUserId = processInstance.getStartUserId();
//获取部门经理
list = getInitiatorDepManagers(startUserId);
List<String> listCandidateUsers = new ArrayList<String>();
for(SysUser sysUser: list) {
String username = sysUser.getUsername();
listCandidateUsers.add(username);
}
userTask.setCandidateUsers(listCandidateUsers);//对于多实例要覆盖原先的值
setMultiFlowNetDto(flowNextDto,list,userTask,multiInstance);
}*/
else if(userlist.size() > 0) {
List<SysUser> list = new ArrayList<SysUser>();
for(String username : userlist) {
SysUser sysUser = iFlowThirdService.getUserByUsername(username);
List<String> listdepname = iFlowThirdService.getDepartNamesByUsername(username);
if(listdepname.size()>0){
sysUser.setOrgCodeTxt(listdepname.get(0).toString());
}
list.add(sysUser);
}
setMultiFlowNetDto(flowNextDto,list,userTask,multiInstance);
}
else {
flowNextDto.setType(ProcessConstants.FIXED);
}
} else {
// 读取自定义节点属性 判断是否是否需要动态指定任务接收人员、组,目前只支持用户角色或多用户，还不支持子流程和变量
//String dataType = userTask.getAttributeValue(ProcessConstants.NAMASPASE, ProcessConstants.PROCESS_CUSTOM_DATA_TYPE);
//String userType = userTask.getAttributeValue(ProcessConstants.NAMASPASE, ProcessConstants.PROCESS_CUSTOM_USER_TYPE);
List<String> rolelist = new ArrayList<>();
rolelist = userTask.getCandidateGroups();
List<String> userlist = new ArrayList<>();
userlist = userTask.getCandidateUsers();
String assignee = userTask.getAssignee();
// 处理加载动态指定下一节点接收人员信息
if(assignee !=null) {
if(StringUtils.equalsAnyIgnoreCase(assignee, "${INITIATOR}")) {//对发起人做特殊处理
List<SysUser> list = new ArrayList<SysUser>();
SysUser sysUser = new SysUser();
sysUser.setUsername("${INITIATOR}");
list.add(sysUser);
setAssigneeFlowNetDto(flowNextDto,list,userTask);
}
else if(StringUtils.contains(assignee, "${flowExp.getDynamicAssignee")) {//对表达式单个动态用户做特殊处理
String methodname = StringUtils.substringBetween(assignee, ".", "(");
List<SysUser> list = new ArrayList<SysUser>();
SysUser sysUser = new SysUser();
flowExp flowexp = SpringContextUtils.getBean(flowExp.class);
Object[] argsPara=new Object[]{};
String username = null;
try {
username = (String) flowexp.invokeMethod(flowexp, methodname,argsPara);
} catch (Exception e) {
e.printStackTrace();
}
sysUser.setUsername(username);
list.add(sysUser);
setAssigneeFlowNetDto(flowNextDto,list,userTask);
}
else if(StringUtils.contains(assignee, "${flowExp.getDynamicList")) {//对表达式多个动态用户做特殊处理
String methodname = StringUtils.substringBetween(assignee, ".", "(");
List<SysUser> list = new ArrayList<SysUser>();
flowExp flowexp = SpringContextUtils.getBean(flowExp.class);
Object[] argsPara=new Object[]{};
try {
list = (List<SysUser>) flowexp.invokeMethod(flowexp, methodname,argsPara);
} catch (Exception e) {
e.printStackTrace();
}
setUsersFlowNetDto(flowNextDto,list,userTask);
}
else if(StringUtils.contains(assignee, "${DepManagerHandler")) {//对部门经理多用户做特殊处理
String methodname = "getInitiatorDepManagers";
List<SysUser> list = new ArrayList<SysUser>();
// 获取流程发起人
ProcessInstance processInstance = runtimeService
.createProcessInstanceQuery()
.processInstanceId(task.getProcessInstanceId())
.singleResult();
String startUserId = processInstance.getStartUserId();
flowExp flowexp = SpringContextUtils.getBean(flowExp.class);
Object[] argsPara=new Object[]{};
argsPara[0] = startUserId;
try {
list = (List<SysUser>) flowexp.invokeMethod(flowexp, methodname,argsPara);
} catch (Exception e) {
e.printStackTrace();
}
setUsersFlowNetDto(flowNextDto,list,userTask);
}
else {
List<SysUser> list = new ArrayList<SysUser>();
SysUser sysUser = iFlowThirdService.getUserByUsername(assignee);
List<String> listdepname = iFlowThirdService.getDepartNamesByUsername(assignee);
if(listdepname.size()>0){
sysUser.setOrgCodeTxt(listdepname.get(0).toString());
}
list.add(sysUser);
setAssigneeFlowNetDto(flowNextDto,list,userTask);
}
}
else if(userlist.size()>0 && StringUtils.equalsAnyIgnoreCase(userlist.get(0), "${DepManagerHandler.getUsers(execution)}")) {//对部门经理做特殊处理
List<SysUser> list = new ArrayList<SysUser>();
// 获取流程发起人
ProcessInstance processInstance = runtimeService
.createProcessInstanceQuery()
.processInstanceId(task.getProcessInstanceId())
.singleResult();
String startUserId = processInstance.getStartUserId();
list = getInitiatorDepManagers(startUserId);
if(list.size()> 1) {
setUsersFlowNetDto(flowNextDto,list,userTask);
setMultiFinishFlag(task,flowNextDto,list);
}
else {
setUsersFlowNetDto(flowNextDto,list,userTask);
}
}
else if(userlist.size() > 0) {
List<SysUser> list = new ArrayList<SysUser>();
for(String username : userlist) {
SysUser sysUser = iFlowThirdService.getUserByUsername(username);
List<String> listdepname = iFlowThirdService.getDepartNamesByUsername(username);
if(listdepname.size()>0){
sysUser.setOrgCodeTxt(listdepname.get(0).toString());
}
list.add(sysUser);
}
setUsersFlowNetDto(flowNextDto,list,userTask);
setMultiFinishFlag(task,flowNextDto,list);
}
else if(rolelist.size() > 0) {
List<SysUser> list = new ArrayList<SysUser>();
for(String roleId : rolelist ){
List<SysUser> templist = iFlowThirdService.getUsersByRoleId(roleId);
for(SysUser sysuser : templist) {
SysUser sysUserTemp = iFlowThirdService.getUserByUsername(sysuser.getUsername());
List<String> listdepname = iFlowThirdService.getDepartNamesByUsername(sysuser.getUsername());
if(listdepname.size()>0){
sysUserTemp.setOrgCodeTxt(listdepname.get(0).toString());
}
list.add(sysUserTemp);
}
}
setUsersFlowNetDto(flowNextDto,list,userTask);
setMultiFinishFlag(task,flowNextDto,list);
}
else {
flowNextDto.setType(ProcessConstants.FIXED);
}
}
}
return flowNextDto;
} else {
return null;
}
}
return null;
}4. The multi-instance processing class increases the processing of department managers
package com.nbcio.modules.flowable.listener;
import cn.hutool.core.collection.CollUtil;
import cn.hutool.core.util.ObjectUtil;
import com.nbcio.modules.flowable.apithird.entity.SysUser;
import com.nbcio.modules.flowable.apithird.service.IFlowThirdService;
import com.nbcio.modules.flowable.utils.flowExp;
import lombok.AllArgsConstructor;
import org.apache.commons.lang3.StringUtils;
import org.flowable.bpmn.model.FlowElement;
import org.flowable.bpmn.model.UserTask;
import org.flowable.engine.delegate.DelegateExecution;
import org.jeecg.common.util.SpringContextUtils;
import org.springframework.stereotype.Component;
import java.util.ArrayList;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Set;
/**
* 多实例collect用户处理类
*
* @author nbacheng
* @date 2022-10-16
*/
@AllArgsConstructor
@Component("multiInstanceHandler")
public class MultiInstanceHandler {
public Set<String> getUserName(DelegateExecution execution) {
Set<String> candidateUserName = new LinkedHashSet<>();
FlowElement flowElement = execution.getCurrentFlowElement();
if (ObjectUtil.isNotEmpty(flowElement) && flowElement instanceof UserTask) {
UserTask userTask = (UserTask) flowElement;
if (CollUtil.isNotEmpty(userTask.getCandidateUsers())) {
List<String> groups = userTask.getCandidateUsers();
if (groups.size()!= 0 && StringUtils.contains(groups.get(0), "${flowExp.getDynamic")) {
getDynamicUsers(groups,candidateUserName);
}
else if (groups.size()!= 0 && StringUtils.contains(groups.get(0), "DepManagerHandler")) {
getInitiatorDepManagers(candidateUserName);
}
else {
candidateUserName.addAll(userTask.getCandidateUsers());
}
} else if (CollUtil.isNotEmpty(userTask.getCandidateGroups())) {
List<String> groups = userTask.getCandidateGroups();
if (groups.size()!= 0 && StringUtils.contains(groups.get(0), "${flowExp.getDynamic")) {
getDynamicUsers(groups,candidateUserName);
}
else {
IFlowThirdService iFlowThirdService = SpringContextUtils.getBean(IFlowThirdService.class);
groups.forEach(item -> {
List<SysUser> listuserName = iFlowThirdService.getUsersByRoleId(item);
for(SysUser sysuser : listuserName) {
candidateUserName.add(sysuser.getUsername());
}
});
}
}
}
return candidateUserName;
}
@SuppressWarnings("unchecked")
private void getDynamicUsers(List<String> groups,Set<String> candidateUserName) {
String methodname = StringUtils.substringBetween(groups.get(0), ".", "(");
List<String> list = new ArrayList<String>();
flowExp flowexp = SpringContextUtils.getBean(flowExp.class);
Object[] argsPara=new Object[]{};
try {
list = (List<String>) flowexp.invokeMethod(flowexp, methodname,argsPara);
candidateUserName.addAll(list);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
@SuppressWarnings("unchecked")
private void getInitiatorDepManagers(Set<String> candidateUserName) {
String methodname = "getInitiatorDepManagers";
List<String> list = new ArrayList<String>();
flowExp flowexp = SpringContextUtils.getBean(flowExp.class);
Object[] argsP5. Increase the acquisition of department managers in the expression
//获取发起人部门经理
public List<String> getInitiatorDepManagers(String startUserId) {
// 获取部门负责人列表
List<String> depIds = iFlowThirdService.getDepartIdsByUsername(startUserId);
List<String> DepHeadlist = new ArrayList<String>();
for(String depId: depIds) {
List<String> depList = iFlowThirdService.getDeptHeadByDepId(depId);
if(depList != null) {
DepHeadlist.addAll(depList);
}
}
// 部门负责人列表去重
List<String> listUserName = new ArrayList<String>();
if(!DepHeadlist.isEmpty() ) {
for (String str : DepHeadlist) {
if (!listUserName.contains(str)) {
listUserName.add(str);
}
}
}
return listUserName;
}
/**
* 反射调用方法
* @param newObj 实例化的一个对象
* @param methodName 对象的方法名
* @param args 参数数组
* @return 返回值
* @throws Exception
*/
public Object invokeMethod(Object newObj, String methodName, Object[] args)throws Exception {
Class ownerClass = newObj.getClass();
Class[] argsClass = new Class[args.length];
for (int i = 0, j = args.length; i < j; i++) {
argsClass[i] = args[i].getClass();
}
Method method = ownerClass.getMethod(methodName, argsClass);
return method.invoke(newObj, args);
}