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53 lines
2.5 KiB
53 lines
2.5 KiB
package com.mydreamjob.resume;
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import com.mydreamjob.candidatescore.refresh.CandidateScoringRefreshRequestService;
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import lombok.RequiredArgsConstructor;
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import org.springframework.stereotype.Component;
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import org.springframework.transaction.annotation.Propagation;
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import org.springframework.transaction.annotation.Transactional;
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import java.time.LocalDateTime;
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/**
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* 简历版本写入工作单元：每个"计算版本号 + 插入"运行在独立事务（REQUIRES_NEW）。
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*
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* <p>原因：唯一键冲突（uk_resume_versions_user_no）会把 Hibernate 事务标记为 rollback-only，
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* 在同一事务内重试必然回滚。独立事务保证单次冲突只回滚自身，外层可安全重试。
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*/
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@Component
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@RequiredArgsConstructor
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public class ResumeVersionWriter {
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private final ResumeVersionRepository resumeVersionRepository;
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/**
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* R01-D4-2 F3：刷新登记必须与版本行在同一提交边界。
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*
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* <p>版本行由本组件的 {@code REQUIRES_NEW} 事务独立提交（这是既有的并发冲突重试防护，
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* 不能移除）。若登记留在外层事务，外层在提交阶段失败就会出现"版本行已落库、刷新信号
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* 丢失"。把登记放进本事务后，二者要么一起提交、要么一起回滚。</p>
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*/
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private final CandidateScoringRefreshRequestService scoringRefreshRequestService;
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/** 计算用户下一个版本号（max+1）并插入；并发冲突抛 DataIntegrityViolationException */
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@Transactional(propagation = Propagation.REQUIRES_NEW)
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public ResumeVersion saveNewVersion(Long userId, String name, String storagePath,
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String fileName, String contentType, long fileSize) {
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Integer maxNo = resumeVersionRepository.findMaxVersionNo(userId);
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int versionNo = (maxNo == null ? 0 : maxNo) + 1;
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ResumeVersion version = ResumeVersion.builder()
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.userId(userId)
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.name(name)
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.versionNo(versionNo)
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.fileStoragePath(storagePath)
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.fileName(fileName)
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.contentType(contentType)
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.fileSize(fileSize)
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.defaultKey(null)
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.status(ResumeVersion.STATUS_ACTIVE)
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.build();
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ResumeVersion saved = resumeVersionRepository.save(version);
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// R01-D4-2 F3：与版本行同事务登记（RESUME 版本数/最近更新影响 GROWTH 维度）。
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scoringRefreshRequestService.requestRefresh(userId, LocalDateTime.now());
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return saved;
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}
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}
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