Activiti7 结束/终止流程

1.  结束/终止 正在运行的流程实例

思路：跟回退一样的思路一样，直接从当前节点跳到结束节点（EndEvent） 

/**
 * 结束任务
 * @param taskId    当前任务ID
 */
public void endTask(String taskId) {
    //  当前任务
    Task task = taskService.createTaskQuery().taskId(taskId).singleResult();

    BpmnModel bpmnModel = repositoryService.getBpmnModel(task.getProcessDefinitionId());
    List endEventList = bpmnModel.getMainProcess().findFlowElementsOfType(EndEvent.class);
    FlowNode endFlowNode = endEventList.get(0);
    FlowNode currentFlowNode = (FlowNode) bpmnModel.getMainProcess().getFlowElement(task.getTaskDefinitionKey());

    //  临时保存当前活动的原始方向
    List originalSequenceFlowList = new ArrayList<>();
    originalSequenceFlowList.addAll(currentFlowNode.getOutgoingFlows());
    //  清理活动方向
    currentFlowNode.getOutgoingFlows().clear();

    //  建立新方向
    SequenceFlow newSequenceFlow = new SequenceFlow();
    newSequenceFlow.setId("newSequenceFlowId");
    newSequenceFlow.setSourceFlowElement(currentFlowNode);
    newSequenceFlow.setTargetFlowElement(endFlowNode);
    List newSequenceFlowList = new ArrayList<>();
    newSequenceFlowList.add(newSequenceFlow);
    //  当前节点指向新的方向
    currentFlowNode.setOutgoingFlows(newSequenceFlowList);

    //  完成当前任务
    taskService.complete(task.getId());

    //  可以不用恢复原始方向，不影响其它的流程
//        currentFlowNode.setOutgoingFlows(originalSequenceFlowList);
}