17.flowable 流程实例撤回

项目地址：https://gitee.com/lwj/flowable.git 分支flowable-base
视频讲解地址
https://www.bilibili.com/video/av78129693/

1、演示

2、代码

public ReturnVo<String> revokeProcess(RevokeVo revokeVo) {
        ReturnVo<String> returnVo = new ReturnVo<>(ReturnCode.FAIL, "撤回失败!");
        if (StringUtils.isNotBlank(revokeVo.getProcessInstanceId())) {
            ProcessInstance processInstance = runtimeService.createProcessInstanceQuery()
                    .processInstanceId(revokeVo.getProcessInstanceId()).singleResult();
            if (processInstance != null) {
                //1.添加撤回意见
                this.addComment(revokeVo.getUserCode(), revokeVo.getProcessInstanceId(), CommentTypeEnum.CH.toString(), revokeVo.getMessage());
                //2.设置提交人
                runtimeService.setVariable(revokeVo.getProcessInstanceId(), FlowConstant.FLOW_SUBMITTER_VAR, processInstance.getStartUserId());
                //3.执行撤回
                Activity disActivity = flowableBpmnModelService.findActivityByName(processInstance.getProcessDefinitionId(), FlowConstant.FLOW_SUBMITTER);
                //4.删除运行和历史的节点信息
                this.deleteActivity(disActivity.getId(), revokeVo.getProcessInstanceId());
                //5.执行跳转
                List<Execution> executions = runtimeService.createExecutionQuery().parentId(revokeVo.getProcessInstanceId()).list();
                List<String> executionIds = new ArrayList<>();
                executions.forEach(execution -> executionIds.add(execution.getId()));
                this.moveExecutionsToSingleActivityId(executionIds, disActivity.getId());
                returnVo = new ReturnVo<>(ReturnCode.SUCCESS, "撤回成功!");
            }
        } else {
            returnVo = new ReturnVo<>(ReturnCode.FAIL, "流程实例id不能为空!");
        }
        return returnVo;
    }