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feat - 增加前加签代码逻辑

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wangli 2025-10-15 20:46:11 +08:00
parent 5187af00cd
commit c8238ba1ba
7 changed files with 225 additions and 41 deletions
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2
workflow-engine-common/src/main/java/cn/axzo/workflow/common/code/ConvertorRespCode.java
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@ -21,6 +21,8 @@ public enum ConvertorRespCode implements IModuleRespCode {
CONVERTOR_OPERATION_NUMBER_TYPE_ERROR("006", "条件节点(数字)运算符【{}】暂不支持"),
CONVERTOR_OPERATION_RADIO_TYPE_ERROR("007", "条件节点(单选)运算符【{}】暂不支持"),
CONVERTOR_OPERATION_CHECKBOX_TYPE_ERROR("008", "条件节点(复选)运算符【{}】暂不支持"),
CREATE_BPMN_USER_TASK_ERROR("009", "创建 UserTask 失败, 不支持的节点模式【{}】"),
CREATE_BPMN_PRE_SIGN_ERROR("010", "创建前加签节点失败，原因:【{}】"),
;
private final String code;

5
workflow-engine-common/src/main/java/cn/axzo/workflow/common/constant/BpmnConstants.java
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@ -47,6 +47,7 @@ public interface BpmnConstants {
String BIZ_NODE_ALTER = "[_BIZ_NODE_ALTER_]";
String INITIATOR_SPECIFY = "[_INITIATOR_SPECIFY_]";
String SIGNATURE_COLLECTION = "[_SIGNATURE_COLLECTION_]";
String FORWARD_COUNTERSIGN_COUNT = "[_FORWARD_COUNTERSIGN_COUNT_]";
String PROCESS_PREFIX = "Flowable";
@Deprecated
String OLD_TASK_ASSIGNEE_SKIP_FLAT = "taskSkip";
@ -264,4 +265,8 @@ public interface BpmnConstants {
* 提级审批变量标识
*/
String SUPPORT_UPGRADE_VARIABLE = "[_SUPPORT_UPGRADE_]";
/**
* 前加签节点 ID 片段
*/
String FORWARD_ACTIVITY_FRAGMENT = "[forward_sign]";
}

1
workflow-engine-common/src/main/java/cn/axzo/workflow/common/enums/BpmnFlowNodeMode.java
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@ -8,6 +8,7 @@ public enum BpmnFlowNodeMode {
GENERAL("GENERAL", "普通节点"),
OR("OR", "或签节点"),
AND("AND", "会签节点"),
SEQUENCE("SEQUENCE", "顺序节点"),
EXCEPTIONAL("EXCEPTIONAL", "异常"),
;

4
workflow-engine-core/src/main/java/cn/axzo/workflow/core/converter/json/UserTaskJsonConverter.java
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@ -686,7 +686,7 @@ public class UserTaskJsonConverter extends AbstractBpmnJsonConverter<UserTask> {
* @param node
* @param userTask
*/
private static void setExecutionListeners(BpmnJsonNode node, UserTask userTask) {
public static void setExecutionListeners(BpmnJsonNode node, UserTask userTask) {
List<FlowableListener> executionListeners = new ArrayList<>();
// 设置执行监听
@ -725,7 +725,7 @@ public class UserTaskJsonConverter extends AbstractBpmnJsonConverter<UserTask> {
*
* @param userTask
*/
private static void setTaskListeners(UserTask userTask) {
public static void setTaskListeners(UserTask userTask) {
List<FlowableListener> taskListeners = new ArrayList<>();
// 设置任务监听
FlowableListener taskListener = new FlowableListener();

68
workflow-engine-core/src/main/java/cn/axzo/workflow/core/engine/cmd/CustomCountersignUserTaskCmd.java
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@ -5,6 +5,7 @@ import cn.axzo.workflow.common.enums.BpmnFlowNodeMode;
import cn.axzo.workflow.common.exception.WorkflowEngineException;
import cn.axzo.workflow.common.model.request.bpmn.task.AttachmentDTO;
import cn.axzo.workflow.common.model.request.bpmn.task.BpmnTaskDelegateAssigner;
import cn.axzo.workflow.core.engine.cmd.helper.CustomBpmnModelHelper;
import cn.axzo.workflow.core.engine.cmd.helper.CustomTaskHelper;
import cn.axzo.workflow.core.engine.model.AddComment;
import cn.axzo.workflow.core.service.ExtAxHiTaskInstService;
@ -13,25 +14,24 @@ import com.alibaba.fastjson.JSON;
import lombok.extern.slf4j.Slf4j;
import org.flowable.bpmn.model.BpmnModel;
import org.flowable.bpmn.model.FlowElement;
import org.flowable.bpmn.model.Process;
import org.flowable.bpmn.model.UserTask;
import org.flowable.common.engine.impl.cfg.IdGenerator;
import org.flowable.common.engine.impl.interceptor.CommandContext;
import org.flowable.engine.RuntimeService;
import org.flowable.engine.TaskService;
import org.flowable.engine.impl.cfg.ProcessEngineConfigurationImpl;
import org.flowable.engine.impl.util.CommandContextUtil;
import org.flowable.engine.impl.util.ProcessDefinitionUtil;
import org.flowable.engine.runtime.ProcessInstance;
import org.flowable.task.api.Task;
import org.flowable.task.api.TaskInfo;
import org.flowable.task.api.history.HistoricTaskInstance;
import org.flowable.task.api.history.HistoricTaskInstanceQuery;
import org.flowable.task.service.impl.persistence.entity.TaskEntity;
import org.flowable.task.service.impl.persistence.entity.TaskEntityImpl;
import org.springframework.util.CollectionUtils;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
@ -42,10 +42,9 @@ import java.util.stream.Collectors;
import static cn.axzo.workflow.common.code.OtherRespCode.ASSIGNEE_NODE_ID_NOT_EXISTS;
import static cn.axzo.workflow.common.constant.BpmnConstants.AND_SIGN_EXPRESSION;
import static cn.axzo.workflow.common.constant.BpmnConstants.COUNTERSIGN_ASSIGNER_SHOW_NUMBER;
import static cn.axzo.workflow.common.constant.BpmnConstants.INTERNAL_ACTIVITY_FORWARD_COUNTERSIGN;
import static cn.axzo.workflow.common.constant.BpmnConstants.FORWARD_ACTIVITY_FRAGMENT;
import static cn.axzo.workflow.common.constant.BpmnConstants.FORWARD_COUNTERSIGN_COUNT;
import static cn.axzo.workflow.common.constant.BpmnConstants.INTERNAL_ACTIVITY_RELATION_ASSIGNEE_LIST_INFO_SNAPSHOT;
import static cn.axzo.workflow.common.constant.BpmnConstants.INTERNAL_TASK_RELATION_ASSIGNEE_INFO;
import static cn.axzo.workflow.common.enums.BpmnCountersignTypeEnum.FORWARD_COUNTERSIGN;
import static cn.axzo.workflow.common.enums.BpmnProcessInstanceResultEnum.COUNTERSIGN;
import static cn.axzo.workflow.core.common.utils.BpmnMetaParserHelper.getCategoryVersion;
import static cn.axzo.workflow.core.engine.cmd.helper.CustomTaskHelper.addMultiTask;
@ -169,39 +168,34 @@ public class CustomCountersignUserTaskCmd extends AbstractCommand<Void> implemen
private void forwardCountSign(CommandContext commandContext, TaskEntity task, List<BpmnTaskDelegateAssigner> valuTargetAssigneeList) {
ProcessEngineConfigurationImpl processEngineConfiguration =
CommandContextUtil.getProcessEngineConfiguration(commandContext);
IdGenerator idGenerator = processEngineConfiguration.getIdGenerator();
TaskService taskService = processEngineConfiguration.getTaskService();
RuntimeService runtimeService = processEngineConfiguration.getRuntimeService();
// 记录前加签的审批人快照
runtimeService.setVariable(task.getProcessInstanceId(), INTERNAL_ACTIVITY_RELATION_ASSIGNEE_LIST_INFO_SNAPSHOT + INTERNAL_ACTIVITY_FORWARD_COUNTERSIGN + task.getId(), valuTargetAssigneeList);
if (task instanceof TaskEntityImpl) {
TaskEntityImpl taskEntity = (TaskEntityImpl) task;
taskEntity.setCountEnabled(true);
taskEntity.setOwner(task.getAssignee());
taskEntity.setAssignee(null);
taskEntity.setScopeType(FORWARD_COUNTERSIGN.getType());
taskService.saveTask(taskEntity);
valuTargetAssigneeList.forEach(e -> {
TaskEntityImpl subTask = (TaskEntityImpl) taskService.newTask(idGenerator.getNextId());
subTask.setName(task.getName());
subTask.setDescription(task.getDescription());
subTask.setCategory(task.getCategory());
subTask.setParentTaskId(task.getId());
subTask.setProcessDefinitionId(task.getProcessDefinitionId());
subTask.setProcessInstanceId(task.getProcessInstanceId());
subTask.setTaskDefinitionKey(task.getTaskDefinitionKey());
subTask.setTaskDefinitionId(task.getTaskDefinitionId());
subTask.setPriority(task.getPriority());
subTask.setCreateTime(new Date());
subTask.setTenantId(task.getTenantId());
// subTask.setAssignee(e.buildAssigneeId());
taskService.saveTask(subTask);
// 设置快照信息
subTask.setVariable(INTERNAL_TASK_RELATION_ASSIGNEE_INFO + subTask.getId(), e.toJson());
taskService.setAssignee(subTask.getId(), e.buildAssigneeId());
});
RuntimeService runtimeService = processEngineConfiguration.getRuntimeService();
ProcessInstance processInstance = runtimeService.createProcessInstanceQuery().processInstanceId(task.getProcessInstanceId()).singleResult();
Process process = ProcessDefinitionUtil.getProcess(processInstance.getProcessDefinitionId());
UserTask originalUserTask = (UserTask) process.getFlowElement(task.getTaskDefinitionKey());
// 获取当前实例前加签次数
Long forwardCounterSignCount = runtimeService.getVariable(processInstance.getId(), FORWARD_COUNTERSIGN_COUNT, Long.class);
if (Objects.isNull(forwardCounterSignCount)) {
forwardCounterSignCount = 0L;
} else {
forwardCounterSignCount = forwardCounterSignCount + 1;
}
BpmnFlowNodeMode nodeMode = Objects.equals(originalUserTask.getLoopCharacteristics().getCompletionCondition(), AND_SIGN_EXPRESSION) ? BpmnFlowNodeMode.AND : BpmnFlowNodeMode.OR;
// 创建前加签节点
UserTask newUserTask = CustomBpmnModelHelper.createUserTask(processEngineConfiguration, originalUserTask, originalUserTask.getId() + FORWARD_ACTIVITY_FRAGMENT + forwardCounterSignCount, nodeMode, valuTargetAssigneeList);
// 加入模型
process.addFlowElement(newUserTask);
// 重新连接顺序流 (Sequence Flow)
CustomBpmnModelHelper.rewireSequenceFlows(process, originalUserTask, newUserTask);
runtimeService.createChangeActivityStateBuilder()
.processInstanceId(task.getProcessInstanceId())
// .moveExecutionsToSingleActivityId(Collections.singletonList(task.getExecutionId()), newUserTask.getId())
.moveActivityIdTo(task.getTaskDefinitionKey(), newUserTask.getId())
.changeState();
}
/**

178
workflow-engine-core/src/main/java/cn/axzo/workflow/core/engine/cmd/helper/CustomBpmnModelHelper.java Normal file
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@ -0,0 +1,178 @@
package cn.axzo.workflow.core.engine.cmd.helper;
import cn.axzo.workflow.common.enums.ApprovalMethodEnum;
import cn.axzo.workflow.common.enums.ApproverEmptyHandleTypeEnum;
import cn.axzo.workflow.common.enums.ApproverSpecifyEnum;
import cn.axzo.workflow.common.enums.BpmnFlowNodeMode;
import cn.axzo.workflow.common.enums.BpmnFlowNodeType;
import cn.axzo.workflow.common.exception.WorkflowEngineException;
import cn.axzo.workflow.common.model.request.bpmn.BpmnJsonNode;
import cn.axzo.workflow.common.model.request.bpmn.task.BpmnTaskDelegateAssigner;
import cn.hutool.core.lang.UUID;
import com.alibaba.fastjson.JSON;
import lombok.extern.slf4j.Slf4j;
import org.flowable.bpmn.model.ExtensionAttribute;
import org.flowable.bpmn.model.ExtensionElement;
import org.flowable.bpmn.model.MultiInstanceLoopCharacteristics;
import org.flowable.bpmn.model.Process;
import org.flowable.bpmn.model.SequenceFlow;
import org.flowable.bpmn.model.UserTask;
import org.flowable.engine.impl.bpmn.behavior.ParallelMultiInstanceBehavior;
import org.flowable.engine.impl.bpmn.behavior.UserTaskActivityBehavior;
import org.flowable.engine.impl.bpmn.parser.factory.ActivityBehaviorFactory;
import org.flowable.engine.impl.cfg.ProcessEngineConfigurationImpl;
import org.springframework.util.StringUtils;
import java.util.List;
import static cn.axzo.workflow.common.code.ConvertorRespCode.CREATE_BPMN_PRE_SIGN_ERROR;
import static cn.axzo.workflow.common.code.ConvertorRespCode.CREATE_BPMN_USER_TASK_ERROR;
import static cn.axzo.workflow.common.constant.BpmnConstants.AND_SIGN_EXPRESSION;
import static cn.axzo.workflow.common.constant.BpmnConstants.CONFIG_APPROVAL_METHOD;
import static cn.axzo.workflow.common.constant.BpmnConstants.CONFIG_APPROVER_EMPTY_HANDLE_TYPE;
import static cn.axzo.workflow.common.constant.BpmnConstants.CONFIG_APPROVER_SPECIFY;
import static cn.axzo.workflow.common.constant.BpmnConstants.CONFIG_NODE_TYPE;
import static cn.axzo.workflow.common.constant.BpmnConstants.ELEMENT_ATTRIBUTE_DESC;
import static cn.axzo.workflow.common.constant.BpmnConstants.ELEMENT_ATTRIBUTE_VALUE;
import static cn.axzo.workflow.common.constant.BpmnConstants.INTERNAL_TASK_RELATION_ASSIGNEE_LIST_INFO;
import static cn.axzo.workflow.common.constant.BpmnConstants.OR_SIGN_EXPRESSION_ONLY_ONE;
import static cn.axzo.workflow.core.converter.json.UserTaskJsonConverter.setExecutionListeners;
import static cn.axzo.workflow.core.converter.json.UserTaskJsonConverter.setTaskListeners;
/**
* 动态操作 BPMN 定义内容的帮助类
*
* @author wangli
* @since 2025-10-15 17:05
*/
@Slf4j
public class CustomBpmnModelHelper {
private CustomBpmnModelHelper() {
}
/**
* 创建 BPMN 中的 UserTask
*
* @param processEngineConfiguration
* @param originalUserTask
* @param nodeMode
*/
public static UserTask createUserTask(ProcessEngineConfigurationImpl processEngineConfiguration, UserTask originalUserTask, String customActivityId, BpmnFlowNodeMode nodeMode, List<BpmnTaskDelegateAssigner> assigners) {
UserTask newUserTask = new UserTask();
if (StringUtils.hasText(customActivityId)) {
newUserTask.setId(customActivityId);
} else {
newUserTask.setId(originalUserTask.getId());
}
newUserTask.setName(originalUserTask.getName());
newUserTask.setDocumentation("由" + originalUserTask.getId() + "节点前加签生成");
MultiInstanceLoopCharacteristics loopCharacteristics = new MultiInstanceLoopCharacteristics();
loopCharacteristics.setInputDataItem(INTERNAL_TASK_RELATION_ASSIGNEE_LIST_INFO + newUserTask.getId());
loopCharacteristics.setElementVariable("assigneeName");
newUserTask.setLoopCharacteristics(loopCharacteristics);
newUserTask.setAssignee("${assigneeName}");
switch (nodeMode) {
case AND:
loopCharacteristics.setSequential(false);
loopCharacteristics.setCompletionCondition(AND_SIGN_EXPRESSION);
break;
case OR:
loopCharacteristics.setSequential(false);
loopCharacteristics.setCompletionCondition(OR_SIGN_EXPRESSION_ONLY_ONE);
break;
case SEQUENCE:
loopCharacteristics.setSequential(true);
loopCharacteristics.setCompletionCondition(AND_SIGN_EXPRESSION);
break;
default:
throw new WorkflowEngineException(CREATE_BPMN_USER_TASK_ERROR, nodeMode.getType());
}
setTaskListeners(newUserTask);
setExecutionListeners(new BpmnJsonNode(), newUserTask);
ExtensionElement approvalMethodElement = new ExtensionElement();
approvalMethodElement.setName(CONFIG_APPROVAL_METHOD);
ExtensionAttribute approvalMethodValueAttribute = new ExtensionAttribute();
approvalMethodValueAttribute.setName(ELEMENT_ATTRIBUTE_VALUE);
approvalMethodValueAttribute.setValue(ApprovalMethodEnum.human.getType());
approvalMethodElement.addAttribute(approvalMethodValueAttribute);
ExtensionAttribute approvalMethodDescAttribute = new ExtensionAttribute();
approvalMethodDescAttribute.setName(ELEMENT_ATTRIBUTE_DESC);
approvalMethodDescAttribute.setValue("审批方式");
approvalMethodElement.addAttribute(approvalMethodDescAttribute);
newUserTask.addExtensionElement(approvalMethodElement);
ExtensionElement approverSpecifyElement = new ExtensionElement();
approverSpecifyElement.setName(CONFIG_APPROVER_SPECIFY);
ExtensionAttribute approverSpecifyValueAttribute = new ExtensionAttribute();
approverSpecifyValueAttribute.setName(ELEMENT_ATTRIBUTE_VALUE);
approverSpecifyValueAttribute.setValue(ApproverSpecifyEnum.fixedPerson.getType());
approverSpecifyElement.addAttribute(approverSpecifyValueAttribute);
ExtensionAttribute approverSpecifyDescAttribute = new ExtensionAttribute();
approverSpecifyDescAttribute.setName(ELEMENT_ATTRIBUTE_DESC);
approverSpecifyDescAttribute.setValue("审批人指定");
approverSpecifyElement.addAttribute(approverSpecifyDescAttribute);
approverSpecifyElement.setElementText(JSON.toJSONString(assigners));
newUserTask.addExtensionElement(approverSpecifyElement);
ExtensionElement nodeTypeElement = new ExtensionElement();
nodeTypeElement.setName(CONFIG_NODE_TYPE);
nodeTypeElement.setElementText(BpmnFlowNodeType.NODE_TASK.getType());
newUserTask.addExtensionElement(nodeTypeElement);
// TODO 追加设置审批人为空的配置，因为查找审批人模式是固定人员，会执行退场、离职校验，导致最终审批人可能为空
// 审批人为空时
ExtensionElement approverEmptyHandleTypeElement = new ExtensionElement();
approverEmptyHandleTypeElement.setName(CONFIG_APPROVER_EMPTY_HANDLE_TYPE);
ExtensionAttribute approverEmptyHandleTypeValueAttribute = new ExtensionAttribute();
approverEmptyHandleTypeValueAttribute.setName(ELEMENT_ATTRIBUTE_VALUE);
approverEmptyHandleTypeValueAttribute.setValue(ApproverEmptyHandleTypeEnum.autoPassed.getType());
approverEmptyHandleTypeElement.setElementText("[]");
approverEmptyHandleTypeElement.addAttribute(approverEmptyHandleTypeValueAttribute);
ExtensionAttribute approverEmptyHandleTypeDescAttribute = new ExtensionAttribute();
approverEmptyHandleTypeDescAttribute.setName(ELEMENT_ATTRIBUTE_DESC);
approverEmptyHandleTypeDescAttribute.setValue("审批人为空时");
approverEmptyHandleTypeElement.addAttribute(approverEmptyHandleTypeDescAttribute);
newUserTask.addExtensionElement(approverEmptyHandleTypeElement);
ActivityBehaviorFactory activityBehaviorFactory = processEngineConfiguration.getActivityBehaviorFactory();
UserTaskActivityBehavior userTaskActivityBehavior = activityBehaviorFactory.createUserTaskActivityBehavior(newUserTask);
// TODO 这里设置的 userTaskActivityBehavior 似乎是不对的。需要
ParallelMultiInstanceBehavior behavior = activityBehaviorFactory.createParallelMultiInstanceBehavior(newUserTask, userTaskActivityBehavior);
behavior.setCollectionVariable(INTERNAL_TASK_RELATION_ASSIGNEE_LIST_INFO + newUserTask.getId());
behavior.setCollectionElementVariable("assigneeName");
behavior.setCompletionCondition(loopCharacteristics.getCompletionCondition());
newUserTask.setBehavior(behavior);
return newUserTask;
}
public static void rewireSequenceFlows(Process process, UserTask originalUserTask, UserTask newUserTask) {
// 1. 找到所有指向原始节点的输入流
List<SequenceFlow> incomingFlows = originalUserTask.getIncomingFlows();
if (incomingFlows.isEmpty()) {
throw new WorkflowEngineException(CREATE_BPMN_PRE_SIGN_ERROR, "节点 " + originalUserTask.getId() + " 没有输入流，无法进行前加签");
}
// 2. 将这些输入流的目标从 originalUserTask 修改为 newUserTask
for (SequenceFlow incomingFlow : incomingFlows) {
incomingFlow.setTargetRef(newUserTask.getId());
// 如果需要，也可以更新FlowElement中的引用，但通常改TargetRef即可
}
// 3. 创建一个新的顺序流，从 newUserTask 指向 originalUserTask
SequenceFlow newSequenceFlow = new SequenceFlow();
newSequenceFlow.setId("pre_sign_dynamic" + UUID.fastUUID());
newSequenceFlow.setSourceRef(newUserTask.getId());
newSequenceFlow.setTargetRef(originalUserTask.getId());
process.addFlowElement(newSequenceFlow);
}
}

8
workflow-engine-core/src/main/java/cn/axzo/workflow/core/engine/cmd/helper/CustomTaskHelper.java
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@ -78,6 +78,10 @@ import static org.flowable.task.api.Task.DEFAULT_PRIORITY;
@Slf4j
public class CustomTaskHelper {
private CustomTaskHelper() {
}
public static void addMultiTask(CommandContext commandContext, TaskEntity originTask,
BpmnTaskDelegateAssigner newTaskAssignee) {
if (Objects.isNull(originTask)) {
@ -352,8 +356,8 @@ public class CustomTaskHelper {
*/
public static TaskEntity createVirtualTask(CommandContext commandContext, ExtAxHiTaskInstService extAxHiTaskInstService
, String processInstanceId, String nodeName, String taskDefinitionKey, String advice,
BpmnTaskDelegateAssigner assigner,
String extTaskInstStatus, AddComment addComment) {
BpmnTaskDelegateAssigner assigner,
String extTaskInstStatus, AddComment addComment) {
ProcessEngineConfigurationImpl processEngineConfiguration =
CommandContextUtil.getProcessEngineConfiguration(commandContext);
HistoryService historyService = processEngineConfiguration.getHistoryService();