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fix：【bpm 工作流】BpmSequentialMultiInstanceBehavior 兼容 CallActivity、SubProcess 场景

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YunaiV
2025-08-04 12:52:07 +08:00
parent 7d1946d91e
commit 8108b9b826
2 changed files with 28 additions and 32 deletions
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49
yudao-module-bpm/src/main/java/cn/iocoder/yudao/module/bpm/framework/flowable/core/behavior/BpmParallelMultiInstanceBehavior.java
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@@ -7,35 +7,44 @@ import cn.iocoder.yudao.module.bpm.framework.flowable.core.candidate.BpmTaskCand
import cn.iocoder.yudao.module.bpm.framework.flowable.core.util.BpmnModelUtils;
import cn.iocoder.yudao.module.bpm.framework.flowable.core.util.FlowableUtils;
import lombok.Setter;
import org.flowable.bpmn.model.*;
import org.flowable.bpmn.model.Activity;
import org.flowable.bpmn.model.CallActivity;
import org.flowable.bpmn.model.FlowElement;
import org.flowable.bpmn.model.UserTask;
import org.flowable.engine.delegate.DelegateExecution;
import org.flowable.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior;
import org.flowable.engine.impl.bpmn.behavior.SequentialMultiInstanceBehavior;
import org.flowable.engine.impl.persistence.entity.ExecutionEntity;
import org.flowable.engine.impl.bpmn.behavior.ParallelMultiInstanceBehavior;
import java.util.List;
import java.util.Set;
/**
* 自定义的【串行】的【多个】流程任务的 assignee 负责人的分配
* 自定义的【并行】的【多个】流程任务的 assignee 负责人的分配
* 第一步，基于分配规则，计算出分配任务的【多个】候选人们。
* 第二步，将【多个】任务候选人们，设置到 DelegateExecution 的 collectionVariable 变量中，以便 BpmUserTaskActivityBehavior 使用它
*
* 本质上，实现和 {@link BpmParallelMultiInstanceBehavior} 一样，只是继承的类不一样
*
* @author 芋道源码
* @author kemengkai
* @since 2022-04-21 16:57
*/
@Setter
public class BpmSequentialMultiInstanceBehavior extends SequentialMultiInstanceBehavior {
public class BpmParallelMultiInstanceBehavior extends ParallelMultiInstanceBehavior {
private BpmTaskCandidateInvoker taskCandidateInvoker;
public BpmSequentialMultiInstanceBehavior(Activity activity, AbstractBpmnActivityBehavior innerActivityBehavior) {
public BpmParallelMultiInstanceBehavior(Activity activity,
AbstractBpmnActivityBehavior innerActivityBehavior) {
super(activity, innerActivityBehavior);
}
/**
* 逻辑和 {@link BpmParallelMultiInstanceBehavior#resolveNrOfInstances(DelegateExecution)} 类似
* 重写该方法，主要实现两个功能：
* 1. 忽略原有的 collectionVariable、collectionElementVariable 表达式，而是采用自己定义的
* 2. 获得任务的处理人，并设置到 collectionVariable 中，用于 BpmUserTaskActivityBehavior 从中可以获取任务的处理人
*
* 差异的点：是在【第二步】的时候，需要返回 LinkedHashSet 集合！因为它需要有序！
* 注意，多个任务实例，每个任务实例对应一个处理人，所以返回的数量就是任务处理人的数量
*
* @param execution 执行任务
* @return 数量
*/
@Override
protected int resolveNrOfInstances(DelegateExecution execution) {
@@ -49,9 +58,8 @@ public class BpmSequentialMultiInstanceBehavior extends SequentialMultiInstanceB
super.collectionElementVariable = FlowableUtils.formatExecutionCollectionElementVariable(execution.getCurrentActivityId());
// 第二步，获取任务的所有处理人
// 不使用 execution.getVariable 原因：目前依次审批任务回退后 collectionVariable 变量没有清理， 如果重新进入该任务不会重新分配审批人
@SuppressWarnings("unchecked")
Set<Long> assigneeUserIds = (Set<Long>) execution.getVariableLocal(super.collectionVariable, Set.class);
Set<Long> assigneeUserIds = (Set<Long>) execution.getVariable(super.collectionVariable, Set.class);
if (assigneeUserIds == null) {
assigneeUserIds = taskCandidateInvoker.calculateUsersByTask(execution);
if (CollUtil.isEmpty(assigneeUserIds)) {
@@ -80,19 +88,4 @@ public class BpmSequentialMultiInstanceBehavior extends SequentialMultiInstanceB
return super.resolveNrOfInstances(execution);
}
@Override
protected void executeOriginalBehavior(DelegateExecution execution, ExecutionEntity multiInstanceRootExecution, int loopCounter) {
// 参见 https://t.zsxq.com/53Meo 情况
if (execution.getCurrentFlowElement() instanceof CallActivity
|| execution.getCurrentFlowElement() instanceof SubProcess) {
super.executeOriginalBehavior(execution, multiInstanceRootExecution, loopCounter);
return;
}
// 参见 https://gitee.com/zhijiantianya/yudao-cloud/issues/IC239F
super.collectionExpression = null;
super.collectionVariable = FlowableUtils.formatExecutionCollectionVariable(execution.getCurrentActivityId());
super.collectionElementVariable = FlowableUtils.formatExecutionCollectionElementVariable(execution.getCurrentActivityId());
super.executeOriginalBehavior(execution, multiInstanceRootExecution, loopCounter);
}
}

11
yudao-module-bpm/src/main/java/cn/iocoder/yudao/module/bpm/framework/flowable/core/behavior/BpmSequentialMultiInstanceBehavior.java
View File

@@ -7,10 +7,7 @@ import cn.iocoder.yudao.module.bpm.framework.flowable.core.candidate.BpmTaskCand
import cn.iocoder.yudao.module.bpm.framework.flowable.core.util.BpmnModelUtils;
import cn.iocoder.yudao.module.bpm.framework.flowable.core.util.FlowableUtils;
import lombok.Setter;
import org.flowable.bpmn.model.Activity;
import org.flowable.bpmn.model.CallActivity;
import org.flowable.bpmn.model.FlowElement;
import org.flowable.bpmn.model.UserTask;
import org.flowable.bpmn.model.*;
import org.flowable.engine.delegate.DelegateExecution;
import org.flowable.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior;
import org.flowable.engine.impl.bpmn.behavior.SequentialMultiInstanceBehavior;
@@ -85,6 +82,12 @@ public class BpmSequentialMultiInstanceBehavior extends SequentialMultiInstanceB
@Override
protected void executeOriginalBehavior(DelegateExecution execution, ExecutionEntity multiInstanceRootExecution, int loopCounter) {
// 参见 https://t.zsxq.com/53Meo 情况
if (execution.getCurrentFlowElement() instanceof CallActivity
|| execution.getCurrentFlowElement() instanceof SubProcess) {
super.executeOriginalBehavior(execution, multiInstanceRootExecution, loopCounter);
return;
}
// 参见 https://gitee.com/zhijiantianya/yudao-cloud/issues/IC239F
super.collectionExpression = null;
super.collectionVariable = FlowableUtils.formatExecutionCollectionVariable(execution.getCurrentActivityId());