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Spring Boot 流程引擎服务：流程定义/实例/任务、审批人解析、 回调分发、oapi 接口及单元测试。 保留远程 .gitea/workflows/build.yml 与 docker/Dockerfile， 新增 .gitignore 排除 target/ 构建产物。
63 lines
2.7 KiB
Java
63 lines
2.7 KiB
Java
package com.yunhai.flowcenter.engine;
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import com.yunhai.flowcenter.entity.FlwDef;
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import com.yunhai.flowcenter.entity.FlwInstance;
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import com.yunhai.flowcenter.enums.FlwEnums;
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import com.yunhai.flowcenter.repository.FlwDefRepository;
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import com.yunhai.flowcenter.repository.FlwInstanceRepository;
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import com.yunhai.flowcenter.repository.FlwTaskRepository;
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import lombok.RequiredArgsConstructor;
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import lombok.extern.slf4j.Slf4j;
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import org.springframework.stereotype.Service;
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import org.springframework.transaction.annotation.Propagation;
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import org.springframework.transaction.annotation.Transactional;
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/**
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* 节点放行推进（AFTER_COMMIT 监听器经代理调用本 bean，REQUIRES_NEW 生效——
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* 事务已提交后的同步监听阶段没有活动事务，@Modifying 批量语句必须有新事务承载）：
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* 该节点待办清零且办件在途才推进；并发冲突由 flw_instance.version 乐观锁暴露，监听器层负责重试。
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*/
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@Slf4j
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@Service
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@RequiredArgsConstructor
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public class FlowAdvanceService {
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private final FlwInstanceRepository instanceRepository;
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private final FlwDefRepository defRepository;
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private final FlwTaskRepository taskRepository;
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private final FlowEngine flowEngine;
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/** @return 是否实际推进了 */
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@Transactional(propagation = Propagation.REQUIRES_NEW)
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public boolean tryAdvance(Long instanceId, String nodeId) {
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FlwInstance instance = instanceRepository.findById(instanceId).orElse(null);
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if (instance == null
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|| instance.getStatus() != FlwEnums.InstanceStatus.APPROVING.getCode()) {
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return false;
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}
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// 已推进过的节点不再放行（currentNodes 由引擎在放行时移除，乐观锁保证互斥）
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String current = instance.getCurrentNodes();
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boolean active = current != null && java.util.Arrays.stream(current.split(","))
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.anyMatch(nodeId::equals);
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if (!active) {
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return false;
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}
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long pending = taskRepository.findByInstanceIdAndStatus(instanceId,
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FlwEnums.TaskStatus.PENDING.getCode()).stream()
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.filter(t -> nodeId.equals(t.getNodeId()))
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.count();
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if (pending > 0) {
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return false;
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}
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FlwDef def = defRepository.findById(instance.getDefId()).orElse(null);
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if (def == null) {
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log.error("[flow-center] 办件定义缺失，推进中止：instance={} defId={}",
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instanceId, instance.getDefId());
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return false;
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}
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flowEngine.continueAdvance(instance, def, nodeId);
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instanceRepository.save(instance);
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return true;
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}
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}
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