2026-09-07 15:11:33 +08:00
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package com.gzzn.omms.msgexchange.domain
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2026-09-06 16:13:50 +08:00
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2026-09-10 10:59:58 +08:00
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import java.time.Instant
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2026-09-06 16:13:50 +08:00
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/**
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* PROC_STATE 处理伴生状态(docs/design.md §2.1/§2.3):每消息一行,
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* MSG_ID = 信箱 ID 主键防重复入队;IDENTITY_KEY 唯一约束防业务重复;
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* 处理状态机与错误分类同设计文档 §2.3。SUCCEEDED 终态兼作 SCHD 快照
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* 重放判定(docs/flight-state.md §4 步骤 / design.md §4.1)。
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*
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* 回填事实(message-lifecycle.md §5.2/§11)与处理事实同体同行:终态与回填意图
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* 由同一条 UPDATE 落下,因此不存在"业务已提交、回填待办未记"的崩溃窗口。
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*/
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enum class ProcStatus { PENDING, FAILED, SUCCEEDED, SKIPPED, DEAD }
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/** 错误分类(design.md §2.3):MALFORMED/PROTOCOL 直接 DEAD 不重试;其余退避重试。 */
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enum class ErrorClass { MALFORMED, PROTOCOL, CODEC_ERROR, EXHAUSTED, INFRA, UNSUPPORTED }
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data class ProcState(
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val msgId: Long,
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val state: ProcStatus,
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val identityKey: String? = null, // SNDR|TYPE|STYP|SEQN(design.md §2.2);decode 后首次绑定,FAILED 重试不重绑
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val attempts: Int = 0,
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val nextAttemptAt: Instant? = null,
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val errorClass: ErrorClass? = null,
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val lastError: String? = null,
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/** 信箱 CMINMSGS_DATE_RECEIVED:§5.2 超期补写的 R 判据与 OPS-2「最老未处理信龄」锚点。 */
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val receivedAt: Instant? = null,
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/** 非空 = 已确认信箱行持有处理标记(回填完成)。 */
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val backfillAt: Instant? = null,
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/** 非空 = 待回填;终态事务内登记为 now,失败按退避推后。 */
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val backfillNextAt: Instant? = null,
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val backfillAttempts: Int = 0,
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val backfillError: String? = null,
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val updatedAt: Instant = Instant.now(),
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)
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