Dans Activiti6.0, lorsque l'approbation échoue, revenez au nœud précédent/au nœud spécifié
Dans le processus d'approbation actuel, nous devons ajouter une fonction pour restaurer le nœud en cas d'échec de l'approbation. Comme la configuration système actuelle n'a pas spécifiquement clarifié cette partie, j'ai d'abord écrit les deux situations de repli suivantes :
1. Revenez au nœud précédent
/**
* 撤回到上一个节点
* @param processInstanceId
* @param nowUserId
*/
@Override
@Transactional
public void revoke(String processInstanceId, String nowUserId) {
//获取待执行的任务节点
Task task = taskService.createTaskQuery().processInstanceId(processInstanceId).singleResult();
if(task == null){
// throw new Exception("sorry,the process is not started or has finished, cannot be withdrawn");
System.out.println("sorry,the process is not started or has finished, cannot be withdrawn");
}
//通过processInstanceId查询历史节点
List<HistoricTaskInstance> htiList = historyService.createHistoricTaskInstanceQuery()
.processInstanceId(processInstanceId)
.orderByTaskCreateTime()
.asc()
.list();
String myTaskId = null;
HistoricTaskInstance myTask = null;
//找到当前运行的节点
HistoricProcessInstance processInstance = historyService.createHistoricProcessInstanceQuery().processInstanceId(processInstanceId).singleResult();
ProcInstance procInstance = procInstanceMapper.selectById(processInstance.getBusinessKey()).get(0);
SysUser startUser = sysUserService.selectUserById(procInstance.getUserId());
List<SysUser> currUsers = findCurrUsers(task, startUser);
System.out.println("----------- =-= -------currUser-----------------------"+currUsers.get(0).getUserId());
System.out.println("------ =-= ------nowUserId--------------------------"+nowUserId);
for (HistoricTaskInstance hti : htiList) {
//判断一下当前的用户是否为当前任务的审批负责人 ， 感觉后面通过权限赋予也可以不加这个判断
//if (currUsers.get(0).getUserId().equals(nowUserId)&& hti.getId().equals(task.getId())) {
if ( currUsers.get(0).getUserId().toString().equals(nowUserId)&&hti.getId().equals(task.getId())) {
myTaskId = hti.getId(); //当前任务id
myTask = hti;
break;
}
}
if (null == myTaskId) {
//throw new Exception("该任务非当前用户提交，无法撤回");
System.out.println("该任务非当前用户提交，无法撤回~~!!");
}
String processDefinitionId = myTask.getProcessDefinitionId();
//获取流程模型
BpmnModel bpmnModel = repositoryService.getBpmnModel(processDefinitionId);
String myActivityId = null;
//查询已经完成的流程节点，查询到上一条已完成的节点，则跳出循环
List<HistoricActivityInstance> haiList = historyService.createHistoricActivityInstanceQuery()
.executionId(myTask.getExecutionId())
.finished()
.orderByHistoricActivityInstanceStartTime()
.desc()
.list();
System.out.println("---------------the latest finished---------------"+haiList.get(0));
myActivityId = haiList.get(0).getActivityId();
// for (HistoricActivityInstance hai : haiList) {
// if (myTaskId.equals(hai.getTaskId())) {
// myActivityId = hai.getActivityId();
// break;
// }
// }
//最近一个已完成节点的 FlowNode
FlowNode myFlowNode = (FlowNode) bpmnModel.getMainProcess().getFlowElement(myActivityId);
//原本的活动方向
Execution execution = runtimeService.createExecutionQuery().executionId(task.getExecutionId()).singleResult();
String activityId = execution.getActivityId();
FlowNode flowNode = (FlowNode) bpmnModel.getMainProcess().getFlowElement(activityId);
//记录原活动方向
List<SequenceFlow> oriSequenceFlows = new ArrayList<SequenceFlow>();
oriSequenceFlows.addAll(flowNode.getOutgoingFlows());
//清理活动方向
flowNode.getOutgoingFlows().clear();
//建立新方向
List<SequenceFlow> newSequenceFlowList = new ArrayList<SequenceFlow>();
SequenceFlow newSequenceFlow = new SequenceFlow();
newSequenceFlow.setId("newSequenceFlowId"+" WITHDRAW: "+nowtime());
//新方向的源头---当前节点
newSequenceFlow.setSourceFlowElement(flowNode);
//新方向的目标---上一个已完成节点
newSequenceFlow.setTargetFlowElement(myFlowNode);
newSequenceFlowList.add(newSequenceFlow);
flowNode.setOutgoingFlows(newSequenceFlowList);
Authentication.setAuthenticatedUserId(nowUserId);
taskService.addComment(task.getId(), task.getProcessInstanceId(), "撤回");
//完成任务
taskService.complete(task.getId());
//恢复原方向
flowNode.setOutgoingFlows(oriSequenceFlows);
System.out.println("------------------withdraw successfully！！----------------------------");
logger.info("退回成功！");
}
2. Revenez au nœud spécifié par l'utilisateur d'approbation actuel.
Interrogez d'abord la table d'activité historique de l'instance de processus actuelle :
/**
* 展示历史Activity表
* @param proInstanceId
* @return
*/
@Override
@Transactional
public List hisActInst(String proInstanceId){
HistoricProcessInstance instance = historyService.createHistoricProcessInstanceQuery().processInstanceBusinessKey(proInstanceId).singleResult();
String processInstanceId = instance.getId();
//获取待执行的任务节点
Task task = taskService.createTaskQuery().processInstanceId(processInstanceId).singleResult();
if(task == null){
// throw new Exception("sorry,the process is not started or has finished, cannot be withdrawn");
System.out.println("sorry,the process is not started or has finished, cannot be withdrawn");
}
//通过processInstanceId查询历史节点
List<HistoricTaskInstance> htiList = historyService.createHistoricTaskInstanceQuery()
.processInstanceId(processInstanceId)
.orderByTaskCreateTime()
.asc()
.list();
String myTaskId = null;
HistoricTaskInstance myTask = null;
//找到当前运行的节点
HistoricProcessInstance processInstance = historyService.createHistoricProcessInstanceQuery().processInstanceId(processInstanceId).singleResult();
ProcInstance procInstance = procInstanceMapper.selectById(processInstance.getBusinessKey()).get(0);
SysUser startUser = sysUserService.selectUserById(procInstance.getUserId());
List<SysUser> currUsers = findCurrUsers(task, startUser);
for (HistoricTaskInstance hti : htiList) {
//判断一下当前的用户是否为当前任务的审批负责人 ， 感觉后面通过权限赋予也可以不加这个判断
//if (currUsers.get(0).getUserId().equals(nowUserId)&& hti.getId().equals(task.getId())) {
if ( hti.getId().equals(task.getId())) {
myTaskId = hti.getId(); //当前任务id
myTask = hti;
break;
}
}
if (null == myTaskId) {
//throw new Exception("该任务非当前用户提交，无法撤回");
System.out.println("该任务非当前用户提交，无法撤回~~!!");
}
List<HistoricActivityInstance> haiList = historyService.createHistoricActivityInstanceQuery()
.executionId(myTask.getExecutionId())
.finished()
.orderByHistoricActivityInstanceStartTime()
.desc()
.list();
return haiList;
}
Effectuez l'opération de restauration en fonction de l'ActivityId obtenu du nœud de restauration cible :
/**
* 回退到指定节点处
* @param processInstanceId
* @param nowUserId
* @param tarActivityId
* @return
*/
@Override
@Transactional
public void rollBackToSpec(String processInstanceId, String nowUserId, String tarActivityId) {
//获取待执行的任务节点
Task task = taskService.createTaskQuery().processInstanceId(processInstanceId).singleResult();
if(task == null){
// throw new Exception("sorry,the process is not started or has finished, cannot be withdrawn");
System.out.println("sorry,the process is not started or has finished, cannot be withdrawn");
}
//通过processInstanceId查询历史节点
List<HistoricTaskInstance> htiList = historyService.createHistoricTaskInstanceQuery()
.processInstanceId(processInstanceId)
.orderByTaskCreateTime()
.asc()
.list();
String myTaskId = null;
HistoricTaskInstance myTask = null;
//找到当前运行的节点
HistoricProcessInstance processInstance = historyService.createHistoricProcessInstanceQuery().processInstanceId(processInstanceId).singleResult();
ProcInstance procInstance = procInstanceMapper.selectById(processInstance.getBusinessKey()).get(0);
SysUser startUser = sysUserService.selectUserById(procInstance.getUserId());
List<SysUser> currUsers = findCurrUsers(task, startUser);
System.out.println("----------- =-= -------currUser-----------------------"+currUsers.get(0).getUserId());
System.out.println("------ =-= ------nowUserId--------------------------"+nowUserId);
for (HistoricTaskInstance hti : htiList) {
//判断一下当前的用户是否为当前任务的审批负责人 ， 感觉后面通过权限赋予也可以不加这个判断
//if (currUsers.get(0).getUserId().equals(nowUserId)&& hti.getId().equals(task.getId())) {
if ( currUsers.get(0).getUserId().toString().equals(nowUserId)&&hti.getId().equals(task.getId())) {
myTaskId = hti.getId(); //当前任务id
myTask = hti;
break;
}
}
if (null == myTaskId) {
//throw new Exception("该任务非当前用户提交，无法撤回");
System.out.println("该任务非当前用户提交，无法撤回~~!!");
}
String processDefinitionId = myTask.getProcessDefinitionId();
//获取流程模型
BpmnModel bpmnModel = repositoryService.getBpmnModel(processDefinitionId);
// String myActivityId = null;
//查询已经完成的流程节点，查询到上一条已完成的节点，则跳出循环
// List<HistoricActivityInstance> haiList = historyService.createHistoricActivityInstanceQuery()
// .executionId(myTask.getExecutionId())
// .finished()
// .orderByHistoricActivityInstanceStartTime()
// .desc()
// .list();
// System.out.println("---------------the latest finished---------------"+haiList.get(0));
// myActivityId = haiList.get(0).getActivityId();
//想要回退到的节点位置
System.out.println(tarActivityId);
FlowNode myFlowNode = (FlowNode) bpmnModel.getMainProcess().getFlowElement(tarActivityId);
//原本的活动方向
Execution execution = runtimeService.createExecutionQuery().executionId(task.getExecutionId()).singleResult();
String activityId = execution.getActivityId();
FlowNode flowNode = (FlowNode) bpmnModel.getMainProcess().getFlowElement(activityId);
//记录原活动方向
List<SequenceFlow> oriSequenceFlows = new ArrayList<SequenceFlow>();
oriSequenceFlows.addAll(flowNode.getOutgoingFlows());
//清理活动方向
flowNode.getOutgoingFlows().clear();
//建立新方向
List<SequenceFlow> newSequenceFlowList = new ArrayList<SequenceFlow>();
SequenceFlow newSequenceFlow = new SequenceFlow();
newSequenceFlow.setId("newSequenceFlowId"+" ROLLBACK: "+nowtime());
//新方向的源头---当前节点
newSequenceFlow.setSourceFlowElement(flowNode);
System.out.println("--------------new flow-----------------"+flowNode);
//新方向的目标---要回退的节点
System.out.println("--------------target flow-----------------"+myFlowNode);
newSequenceFlow.setTargetFlowElement(myFlowNode);
newSequenceFlowList.add(newSequenceFlow);
flowNode.setOutgoingFlows(newSequenceFlowList);
Authentication.setAuthenticatedUserId(nowUserId);
taskService.addComment(task.getId(), task.getProcessInstanceId(), "回退");
//完成任务
System.out.println("========================完成任务====================");
taskService.complete(task.getId());
//恢复原方向
flowNode.setOutgoingFlows(oriSequenceFlows);
System.out.println("------------------RollBack successfully！！----------------------------");
logger.info("退回成功！");
//将退回完成后的当前节点的task返回
// HistoricActivityInstance historicActivityInstance = historyService.createHistoricActivityInstanceQuery().activityId(tarActivityId).singleResult();
//
// return historicActivityInstance.getTaskId();
}