| 提交 | 用户 | 时间 | ||
| e7c126 | 1 | package com.iailab.module.bpm.framework.flowable.core.behavior; |
| H | 2 | |
| 3 | import com.iailab.module.bpm.framework.flowable.core.candidate.BpmTaskCandidateInvoker; | |
| 4 | import com.iailab.module.bpm.framework.flowable.core.util.FlowableUtils; | |
| 5 | import lombok.Setter; | |
| 6 | import org.flowable.bpmn.model.Activity; | |
| 7 | import org.flowable.engine.delegate.DelegateExecution; | |
| 8 | import org.flowable.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior; | |
| 9 | import org.flowable.engine.impl.bpmn.behavior.SequentialMultiInstanceBehavior; | |
| 10 | ||
| 11 | import java.util.LinkedHashSet; | |
| 12 | import java.util.Set; | |
| 13 | ||
| 14 | /** | |
| 15 | * 自定义的【串行】的【多个】流程任务的 assignee 负责人的分配 | |
| 16 | * | |
| 17 | * 本质上，实现和 {@link BpmParallelMultiInstanceBehavior} 一样，只是继承的类不一样 | |
| 18 | * | |
| 19 | * @author iailab | |
| 20 | */ | |
| 21 | @Setter | |
| 22 | public class BpmSequentialMultiInstanceBehavior extends SequentialMultiInstanceBehavior { | |
| 23 | ||
| 24 | private BpmTaskCandidateInvoker taskCandidateInvoker; | |
| 25 | ||
| 26 | public BpmSequentialMultiInstanceBehavior(Activity activity, AbstractBpmnActivityBehavior innerActivityBehavior) { | |
| 27 | super(activity, innerActivityBehavior); | |
| 28 | } | |
| 29 | ||
| 30 | /** | |
| 31 | * 逻辑和 {@link BpmParallelMultiInstanceBehavior#resolveNrOfInstances(DelegateExecution)} 类似 | |
| 32 | * | |
| 33 | * 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！ | |
| 34 | */ | |
| 35 | @Override | |
| 36 | protected int resolveNrOfInstances(DelegateExecution execution) { | |
| 37 | // 第一步，设置 collectionVariable 和 CollectionVariable | |
| 38 | // 从 execution.getVariable() 读取所有任务处理人的 key | |
| 39 | super.collectionExpression = null; // collectionExpression 和 collectionVariable 是互斥的 | |
| 40 | super.collectionVariable = FlowableUtils.formatExecutionCollectionVariable(execution.getCurrentActivityId()); | |
| 41 | // 从 execution.getVariable() 读取当前所有任务处理的人的 key | |
| 42 | super.collectionElementVariable = FlowableUtils.formatExecutionCollectionElementVariable(execution.getCurrentActivityId()); | |
| 43 | ||
| 44 | // 第二步，获取任务的所有处理人 | |
| 45 | Set<Long> assigneeUserIds = new LinkedHashSet<>(taskCandidateInvoker.calculateUsers(execution)); // 保证有序！！！ | |
| 46 | execution.setVariable(super.collectionVariable, assigneeUserIds); | |
| 47 | return assigneeUserIds.size(); | |
| 48 | } | |
| 49 | ||
| 50 | } | |
