activiti 流程模型复制源码

今天使用框架开发流程时，感觉从头画一个activiti 流程图太麻烦了，随即想到加个流程模型复制功能可以节省大量的开发时间。lets go 。
代码如下：

  //activiti 流程模型复制
    @Transactional(readOnly = false)
    public Model copy(String id) throws Exception {

        Model sourceModel = this.get(id);
        ObjectNode sourceObjectNode = (ObjectNode) new ObjectMapper().readTree(repositoryService.getModelEditorSource(id));

        Model model = repositoryService.newModel();
        model.setKey(sourceModel.getKey() + "_" + IdGenerator.get());
        model.setName(sourceModel.getName()+"_copy");
        model.setCategory(sourceModel.getCategory());
        model.setVersion(1);
        repositoryService.saveModel(model);

        ObjectNode editorNode = sourceObjectNode.deepCopy();
        ObjectNode properties = objectMapper.createObjectNode();
        properties.put("process_id", model.getKey());
        properties.put("process_author", "lms");
        properties.put("name", model.getName());
        editorNode.set("properties", properties);

        repositoryService.addModelEditorSource(model.getId(), editorNode.toString().getBytes("utf-8"));

        return model;

    }

效果图：