03.flowable 流程模板部署

最新推荐文章于 2025-07-14 00:02:34 发布

原创最新推荐文章于 2025-07-14 00:02:34 发布 · 497 阅读

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该博客主要介绍了如何进行模型的部署操作，包括根据modelId获取模型信息，转换为XML对象，修正过程ID，并针对不同租户进行部署。此外，还涉及了流程分类设置和异常处理。整个过程涉及到BPMN模型的转换、流程引擎的使用以及数据库操作。

1.演示

在这里插入图片描述
2.代码

@Override
    @Transactional
    public Object modelDeploy(ReqModel reqModel) throws IllegalAccessException, IntrospectionException, InstantiationException, SQLException, InvocationTargetException, ClassNotFoundException {
        /**
         * 1.根据modelId获取模型信息
         * 2.转换为xml对象
         * 3.部署对象以模型对象的名称命名
         * 4.部署转换出来的xml对象
         * */
        RetBean retbean = new RetBean();
        FlowModel model = this.queryFlowModelById(reqModel.getModelId());
        if (model == null) {
            return retbean.backError("No model found with the given id: " + reqModel.getModelId());
        }
        BpmnModel bpmnModel = getBpmnModel(model);
        for (Process process : bpmnModel.getProcesses()) {
            if (StringUtils.isNotEmpty(process.getId())) {
                char firstCharacter = process.getId().charAt(0);
                if (Character.isDigit(firstCharacter)) {
                    process.setId("a" + process.getId());
                }
            }
        }
        byte[] bytes = BPMN_XML_CONVERTER.convertToXML(bpmnModel);
        String processName = model.getName();
        if (!StringUtil.endsWithIgnoreCase(processName, FlowEngineConstant.SUFFIX)) {
            processName += FlowEngineConstant.SUFFIX;
        }
        String finalProcessName = processName;
        String[] ids = null;
        if (!StringUtil.isEmpty(reqModel.getTenantIds())) {
            ids = reqModel.getTenantIds().split(",");
        }
        if (!StringUtil.isEmpty(ids)) {
            for (String tenantId : ids) {
                Deployment deployment = repositoryService.createDeployment().addBytes(finalProcessName, bytes).name(model.getName()).key(model.getModel_key()).tenantId(tenantId).deploy();
                deploy(deployment, reqModel.getCategory());
            }
        } else {
            Deployment deployment = repositoryService.createDeployment().addBytes(finalProcessName, bytes).name(model.getName()).key(model.getModel_key()).deploy();
            deploy(deployment, reqModel.getCategory());
        }
        return retbean;
    }

	private BpmnModel getBpmnModel(FlowModel model) throws IllegalAccessException, IntrospectionException, InstantiationException, SQLException, InvocationTargetException, ClassNotFoundException {
        BpmnModel bpmnModel;
        try {
            Map<String, FlowModel> formMap = new HashMap<>(16);
            Map<String, FlowModel> decisionTableMap = new HashMap<>(16);
            List<FlowModel> referencedModels = this.findByParentModelId(model.getId());
            for (FlowModel childModel : referencedModels) {
                if (FlowModel.MODEL_TYPE_FORM == childModel.getModel_type()) {
                    formMap.put(childModel.getId(), childModel);
                } else if (FlowModel.MODEL_TYPE_DECISION_TABLE == childModel.getModel_type()) {
                    decisionTableMap.put(childModel.getId(), childModel);
                }
            }
            bpmnModel = getBpmnModel(model, formMap, decisionTableMap);
        } catch (Exception e) {
            throw new ServiceException("Could not generate BPMN 2.0 model");
        }
        return bpmnModel;
    }


    private BpmnModel getBpmnModel(FlowModel model, Map<String, FlowModel> formMap, Map<String, FlowModel> decisionTableMap) throws JsonProcessingException {
        ObjectNode editorJsonNode = (ObjectNode) objectMapper.readTree(model.getModel_editor_json());
        Map<String, String> formKeyMap = new HashMap<>(16);
        for (FlowModel formModel : formMap.values()) {
            formKeyMap.put(formModel.getId(), formModel.getModel_key());
        }
        Map<String, String> decisionTableKeyMap = new HashMap<>(16);
        for (FlowModel decisionTableModel : decisionTableMap.values()) {
            decisionTableKeyMap.put(decisionTableModel.getId(), decisionTableModel.getModel_key());
        }
        return BPMN_JSON_CONVERTER.convertToBpmnModel(editorJsonNode, formKeyMap, decisionTableKeyMap);
    }

 private boolean deploy(Deployment deployment, String category) {
        List<ProcessDefinition> list = repositoryService.createProcessDefinitionQuery().deploymentId(deployment.getId()).list();
        // 设置流程分类
        for (ProcessDefinition processDefinition : list) {
            if (StringUtil.isNotBlank(category)) {
                repositoryService.setProcessDefinitionCategory(processDefinition.getId(), category);
            }

        }
        if (list.size() == 0) {
            throw new ServiceException("部署失败,未找到流程");
        } else {
            return true;
        }
    }