diff --git a/src/main/kotlin/com/gzzn/omms/msgexchange/codec/JacksonXmlCodec.kt b/src/main/kotlin/com/gzzn/omms/msgexchange/codec/JacksonXmlCodec.kt
new file mode 100644
index 0000000..f682731
--- /dev/null
+++ b/src/main/kotlin/com/gzzn/omms/msgexchange/codec/JacksonXmlCodec.kt
@@ -0,0 +1,175 @@
+package com.gzzn.omms.msgexchange.codec
+
+import com.gzzn.omms.msgexchange.domain.DecodedMessage
+import com.gzzn.omms.msgexchange.domain.ErrorClass
+import com.gzzn.omms.msgexchange.domain.MetaFields
+import com.gzzn.omms.msgexchange.domain.MsgKind
+import jakarta.inject.Singleton
+import org.w3c.dom.Element
+import org.w3c.dom.Node
+import org.xml.sax.InputSource
+import java.io.StringReader
+import javax.xml.XMLConstants
+import javax.xml.parsers.DocumentBuilderFactory
+
+/**
+ * SIS XML 解码(XXE 防护;META + TYPE 分派 + FLOP 集合解析)。
+ * 阶段 2 先覆盖 FLOP-GTDT 纵向链路所需字段;其余 STYP 仅完成 META/FLID 提取。
+ */
+@Singleton
+class JacksonXmlCodec : XmlCodec {
+
+ private val builderFactory: DocumentBuilderFactory = DocumentBuilderFactory.newInstance().apply {
+ isNamespaceAware = false
+ isExpandEntityReferences = false
+ setFeature(XMLConstants.FEATURE_SECURE_PROCESSING, true)
+ setFeature("http://apache.org/xml/features/disallow-doctype-decl", true)
+ setFeature("http://xml.org/sax/features/external-general-entities", false)
+ setFeature("http://xml.org/sax/features/external-parameter-entities", false)
+ try {
+ setAttribute(XMLConstants.ACCESS_EXTERNAL_DTD, "")
+ setAttribute(XMLConstants.ACCESS_EXTERNAL_SCHEMA, "")
+ } catch (_: IllegalArgumentException) {
+ // JDK 实现差异:忽略不支持的属性
+ }
+ }
+
+ override fun decode(rawXml: String): DecodeResult {
+ val trimmed = rawXml.trim()
+ if (trimmed.isEmpty() || !trimmed.startsWith("<")) {
+ return DecodeResult.Err(DecodeFailure(ErrorClass.MALFORMED, "empty-or-non-xml"))
+ }
+ return try {
+ val doc = builderFactory.newDocumentBuilder().parse(InputSource(StringReader(trimmed)))
+ val root = doc.documentElement ?: return DecodeResult.Err(
+ DecodeFailure(ErrorClass.MALFORMED, "missing-root"),
+ )
+ if (!root.tagName.equals("MSG", ignoreCase = true)) {
+ return DecodeResult.Err(DecodeFailure(ErrorClass.MALFORMED, "root-not-msg:${root.tagName}"))
+ }
+
+ val metaEl = firstChildElement(root, "META")
+ ?: return DecodeResult.Err(DecodeFailure(ErrorClass.MALFORMED, "missing-meta"))
+ val sndr = childText(metaEl, "SNDR")
+ ?: return DecodeResult.Err(DecodeFailure(ErrorClass.MALFORMED, "missing-sndr"))
+ val seqn = childText(metaEl, "SEQN")?.toLongOrNull()
+ ?: return DecodeResult.Err(DecodeFailure(ErrorClass.MALFORMED, "missing-or-invalid-seqn"))
+ val dttm = childText(metaEl, "DTTM")?.toLongOrNull()
+ ?: return DecodeResult.Err(DecodeFailure(ErrorClass.MALFORMED, "missing-or-invalid-dttm"))
+ val type = childText(metaEl, "TYPE")?.uppercase()
+ ?: return DecodeResult.Err(DecodeFailure(ErrorClass.MALFORMED, "missing-type"))
+ val styp = childText(metaEl, "STYP")?.uppercase()
+ ?: return DecodeResult.Err(DecodeFailure(ErrorClass.MALFORMED, "missing-styp"))
+
+ val kind = kindOf(type, styp)
+ val body = when (kind) {
+ is MsgKind.Flop -> parseFlopBody(root, type)
+ is MsgKind.Schd -> null
+ }
+
+ DecodeResult.Ok(
+ DecodedMessage(
+ meta = MetaFields(sndr = sndr, type = type, styp = styp, seqn = seqn, dttm = dttm),
+ kind = kind,
+ rawXml = trimmed,
+ body = body,
+ ),
+ )
+ } catch (e: NumberFormatException) {
+ DecodeResult.Err(DecodeFailure(ErrorClass.MALFORMED, "invalid-number:${e.message}"))
+ } catch (e: Exception) {
+ DecodeResult.Err(DecodeFailure(ErrorClass.MALFORMED, "xml-parse:${e.message ?: e.javaClass.simpleName}"))
+ }
+ }
+
+ override fun encodeRqrd(kind: String, rangeJson: String): String =
+ """RQFD"""
+
+ private fun kindOf(type: String, styp: String): MsgKind = when (type) {
+ "SCHD" -> MsgKind.Schd(
+ when (styp) {
+ "RESP" -> MsgKind.SchdSubtype.RESP
+ "DNLD" -> MsgKind.SchdSubtype.DNLD
+ "ADFT" -> MsgKind.SchdSubtype.ADFT
+ else -> MsgKind.SchdSubtype.DNLD
+ },
+ )
+ "FLOP" -> MsgKind.Flop(styp)
+ else -> MsgKind.Flop(styp)
+ }
+
+ private fun parseFlopBody(root: Element, type: String): FlopPayload? {
+ val section = firstChildElement(root, type) ?: return null
+ val scalars = linkedMapOf()
+ val collections = linkedMapOf>>()
+
+ section.childNodes.let { nodes ->
+ for (i in 0 until nodes.length) {
+ val node = nodes.item(i)
+ if (node.nodeType != Node.ELEMENT_NODE) continue
+ val el = node as Element
+ val tag = el.tagName.uppercase()
+ when {
+ tag in COLLECTION_TAGS -> {
+ collections.getOrPut(tag) { mutableListOf() }.add(parseCollectionItem(el))
+ }
+ tag == "FLID" -> scalars["FLID"] = el.textContent.trim()
+ hasElementChildren(el) -> Unit
+ else -> scalars[tag] = el.textContent.trim()
+ }
+ }
+ }
+
+ val flid = scalars.remove("FLID") ?: return null
+ return FlopPayload(flid = flid, scalars = scalars, collections = collections.mapValues { it.value.toList() })
+ }
+
+ private fun parseCollectionItem(el: Element): Map {
+ val item = linkedMapOf()
+ if (el.hasAttributes()) {
+ for (i in 0 until el.attributes.length) {
+ val attr = el.attributes.item(i)
+ item[attr.nodeName.uppercase()] = attr.nodeValue.trim()
+ }
+ }
+ el.childNodes.let { nodes ->
+ for (i in 0 until nodes.length) {
+ val node = nodes.item(i)
+ if (node.nodeType != Node.ELEMENT_NODE) continue
+ val child = node as Element
+ item[child.tagName.uppercase()] = child.textContent.trim()
+ }
+ }
+ return item
+ }
+
+ private fun firstChildElement(parent: Element, tag: String): Element? {
+ parent.childNodes.let { nodes ->
+ for (i in 0 until nodes.length) {
+ val node = nodes.item(i)
+ if (node.nodeType == Node.ELEMENT_NODE && (node as Element).tagName.equals(tag, ignoreCase = true)) {
+ return node
+ }
+ }
+ }
+ return null
+ }
+
+ private fun childText(parent: Element, tag: String): String? =
+ firstChildElement(parent, tag)?.textContent?.trim()?.takeIf { it.isNotEmpty() }
+
+ private fun hasElementChildren(el: Element): Boolean {
+ el.childNodes.let { nodes ->
+ for (i in 0 until nodes.length) {
+ if (nodes.item(i).nodeType == Node.ELEMENT_NODE) return true
+ }
+ }
+ return false
+ }
+
+ companion object {
+ val COLLECTION_TAGS: Set = setOf(
+ "GTDT", "CKDT", "CLDT", "PSDT", "CHDT", "DELY", "ABTM", "CHOT", "ROUT", "ERUT",
+ )
+ }
+}
diff --git a/src/main/kotlin/com/gzzn/omms/msgexchange/codec/SisMessageBody.kt b/src/main/kotlin/com/gzzn/omms/msgexchange/codec/SisMessageBody.kt
new file mode 100644
index 0000000..8e84068
--- /dev/null
+++ b/src/main/kotlin/com/gzzn/omms/msgexchange/codec/SisMessageBody.kt
@@ -0,0 +1,11 @@
+package com.gzzn.omms.msgexchange.codec
+
+/**
+ * FLOP 报文解析体(v2 §4 命令化输入)。
+ * scalars:FLID/FFID 等标量;collections:GTDT/CKDT 等重复集合(含源序号属性)。
+ */
+data class FlopPayload(
+ val flid: String,
+ val scalars: Map = emptyMap(),
+ val collections: Map>> = emptyMap(),
+)
diff --git a/src/main/kotlin/com/gzzn/omms/msgexchange/infra/pipeline/PipelineHolderFactory.kt b/src/main/kotlin/com/gzzn/omms/msgexchange/infra/pipeline/PipelineHolderFactory.kt
new file mode 100644
index 0000000..dca40d4
--- /dev/null
+++ b/src/main/kotlin/com/gzzn/omms/msgexchange/infra/pipeline/PipelineHolderFactory.kt
@@ -0,0 +1,23 @@
+package com.gzzn.omms.msgexchange.infra.pipeline
+
+import com.gzzn.omms.msgexchange.codec.JacksonXmlCodec
+import com.gzzn.omms.msgexchange.processing.CodecHolder
+import com.gzzn.omms.msgexchange.processing.Handler
+import com.gzzn.omms.msgexchange.processing.HandlerHolder
+import com.gzzn.omms.msgexchange.processing.HandlerRegistry
+import io.micronaut.context.annotation.Bean
+import io.micronaut.context.annotation.Factory
+import jakarta.inject.Singleton
+
+/** 主泵解码与 Handler 装配(stub / 实装模式共用真实 XmlCodec + 已注册 Handler)。 */
+@Factory
+class PipelineHolderFactory {
+
+ @Bean
+ @Singleton
+ fun codecHolder(codec: JacksonXmlCodec): CodecHolder = CodecHolder(codec)
+
+ @Bean
+ @Singleton
+ fun handlerHolder(handlers: List): HandlerHolder = HandlerHolder(HandlerRegistry(handlers))
+}
diff --git a/src/main/kotlin/com/gzzn/omms/msgexchange/infra/stub/StubAdapters.kt b/src/main/kotlin/com/gzzn/omms/msgexchange/infra/stub/StubAdapters.kt
index 7f38981..cf03809 100644
--- a/src/main/kotlin/com/gzzn/omms/msgexchange/infra/stub/StubAdapters.kt
+++ b/src/main/kotlin/com/gzzn/omms/msgexchange/infra/stub/StubAdapters.kt
@@ -1,32 +1,13 @@
package com.gzzn.omms.msgexchange.infra.stub
-import com.gzzn.omms.msgexchange.codec.DecodeFailure
-import com.gzzn.omms.msgexchange.codec.DecodeResult
-import com.gzzn.omms.msgexchange.codec.XmlCodec
import com.gzzn.omms.msgexchange.delivery.DeliveryPort
-import com.gzzn.omms.msgexchange.domain.ErrorClass
-import com.gzzn.omms.msgexchange.processing.CodecHolder
-import com.gzzn.omms.msgexchange.processing.HandlerHolder
-import com.gzzn.omms.msgexchange.processing.HandlerRegistry
-import io.micronaut.context.annotation.Bean
-import io.micronaut.context.annotation.Factory
import io.micronaut.context.annotation.Requires
import jakarta.inject.Singleton
/**
- * U07:stub 适配层——XmlCodec / DeliveryPort / Handler 装配,仅在 msgx.stubs=true 时生效(Redis 客户端已按 ACM2-28 移除)。
- * stub codec 未实装 → 报文 decode 返回 CODEC_ERROR(走 FAILED 可重放路径,链路上可观测),
- * 语义见 ACM2-10 U11:不把“未实装”写成报文非法/终态。
+ * U07:stub 适配层——DeliveryPort 内存实现,仅在 msgx.stubs=true 时生效。
+ * XmlCodec / Handler 由 [com.gzzn.omms.msgexchange.infra.pipeline.PipelineHolderFactory] 统一装配。
*/
-@Requires(property = "msgx.stubs", value = "true")
-@Singleton
-class StubXmlCodec : XmlCodec {
- override fun decode(rawXml: String): DecodeResult =
- DecodeResult.Err(DecodeFailure(ErrorClass.CODEC_ERROR, "stub:codec-not-implemented"))
-
- override fun encodeRqrd(kind: String, rangeJson: String): String = ""
-}
-
@Requires(property = "msgx.stubs", value = "true")
@Singleton
class StubDeliveryPort : DeliveryPort {
@@ -37,15 +18,3 @@ class StubDeliveryPort : DeliveryPort {
override fun sendKafka(topic: String, payloadJson: String) { sent += topic to payloadJson }
override fun indexFlightHts(payloadJson: String) = Unit
}
-
-/** Holder 工厂:CodecHolder/HandlerHolder 由 Micronaut Bean 提供(取代直连构造占位)。 */
-@Factory
-@Requires(property = "msgx.stubs", value = "true")
-class StubHolderFactory {
-
- @Bean
- fun codecHolder(codec: StubXmlCodec): CodecHolder = CodecHolder(codec)
-
- @Bean
- fun handlerHolder(): HandlerHolder = HandlerHolder(HandlerRegistry(emptyList())) // 阶段 2 前无 Handler 注册
-}
diff --git a/src/main/kotlin/com/gzzn/omms/msgexchange/processing/Pump.kt b/src/main/kotlin/com/gzzn/omms/msgexchange/processing/Pump.kt
index a3c9c96..a51f507 100644
--- a/src/main/kotlin/com/gzzn/omms/msgexchange/processing/Pump.kt
+++ b/src/main/kotlin/com/gzzn/omms/msgexchange/processing/Pump.kt
@@ -2,6 +2,7 @@ package com.gzzn.omms.msgexchange.processing
import com.gzzn.omms.msgexchange.config.PipelineProps
import com.gzzn.omms.msgexchange.domain.DecodedMessage
+import com.gzzn.omms.msgexchange.domain.flight.FlightStateEngine
import com.gzzn.omms.msgexchange.domain.ErrorClass
import com.gzzn.omms.msgexchange.domain.MsgEvent
import com.gzzn.omms.msgexchange.domain.ProcState
@@ -222,9 +223,15 @@ class MessageProcessor(
decision.schdPush.forEach { add(MsgEvent(target = Targets.KAFKA_SCHD, partitionKey = it.flid, payloadJson = it.payloadJson)) }
}
+ val messageId = head.cminmsgsId.toString()
txManager.inTransaction {
if (decision.flightChanges.isNotEmpty()) {
- flightSchd.upsertIncremental(decision.flightChanges)
+ val nextStates = decision.flightChanges.map { change ->
+ val current = flightSchd.findNextStateByFlid(change.flid)
+ val commands = FlightStateEngine.commandsFromFields(change.flid, change.fields, snapshotReplace = false)
+ FlightStateEngine.apply(current, commands, messageId, bumpVersion = true)
+ }
+ flightSchd.persistNextStates(null, nextStates, snapshotReplace = false)
}
if (events.isNotEmpty()) {
msgEvents.insertAll(events)
@@ -232,8 +239,11 @@ class MessageProcessor(
procState.update(head.cminmsgsId, ProcStatus.SUCCEEDED)
}
- // 提交后:backfill CMINMSGS(共享信箱外部副作用,补偿链路)
- inbox.backfillOnSuccess(head.cminmsgsId, decoded.meta.sndr, decoded.meta.type, decoded.meta.styp, decoded.meta.seqn)
+ try {
+ inbox.backfillOnSuccess(head.cminmsgsId, decoded.meta.sndr, decoded.meta.type, decoded.meta.styp, decoded.meta.seqn)
+ } catch (e: Exception) {
+ log.error("backfill failed after SUCCEEDED id={} (compensation required)", head.cminmsgsId, e)
+ }
log.info("SUCCEEDED id={} events={} flightChanges={}", head.cminmsgsId, events.size, decision.flightChanges.size)
}
}
diff --git a/src/main/kotlin/com/gzzn/omms/msgexchange/processing/SnapshotFlow.kt b/src/main/kotlin/com/gzzn/omms/msgexchange/processing/SnapshotFlow.kt
index cbe2e6d..22be3a7 100644
--- a/src/main/kotlin/com/gzzn/omms/msgexchange/processing/SnapshotFlow.kt
+++ b/src/main/kotlin/com/gzzn/omms/msgexchange/processing/SnapshotFlow.kt
@@ -1,6 +1,7 @@
package com.gzzn.omms.msgexchange.processing
import com.gzzn.omms.msgexchange.domain.DecodedMessage
+import com.gzzn.omms.msgexchange.domain.flight.FlightStateEngine
import com.gzzn.omms.msgexchange.domain.ErrorClass
import com.gzzn.omms.msgexchange.domain.ProcState
import com.gzzn.omms.msgexchange.domain.ProcStatus
@@ -36,18 +37,17 @@ class SnapshotFlow(
private val log = org.slf4j.LoggerFactory.getLogger(SnapshotFlow::class.java)
fun publishSnapshot(head: ProcState, msg: DecodedMessage) {
- // 1) staging:流式解析 + 整包校验(内存瞬态,崩溃从 raw 整包重放)
+ val messageId = head.cminmsgsId.toString()
val staged = StageResult.stagingOf(msg)
if (staged is StageResult.Invalid) {
log.warn("staging not implemented -> FAILED(UNSUPPORTED) id={} reason={}", head.cminmsgsId, staged.reason)
- procFailure.fail(head, ErrorClass.UNSUPPORTED, staged.reason) // U10:未实装 → 可重放,非终态
+ procFailure.fail(head, ErrorClass.UNSUPPORTED, staged.reason)
return
}
val ok = staged as StageResult.Ok
- val normalized = ok.flights // (flid, fields)
+ val normalized = ok.flights
val day = ok.day
- // 内存与超大包熔断防御(ACM2-28 评论 4 项 3)
if (normalized.size > MAX_FLIGHTS_PER_SNAPSHOT) {
log.error("snapshot flights exceed limit -> DEAD(MALFORMED) id={} size={}", head.cminmsgsId, normalized.size)
procState.update(head.cminmsgsId, ProcStatus.DEAD, errorClass = ErrorClass.MALFORMED,
@@ -55,39 +55,56 @@ class SnapshotFlow(
return
}
- // 2) 准备代元数据与差集(删除集 = gen.flids − 新代,ADFT 自动存活)
val gen = flightSchd.getGen(day)
+ if (gen?.lastMessageId == messageId) {
+ txManager.inTransaction {
+ procState.update(head.cminmsgsId, ProcStatus.SUCCEEDED)
+ }
+ safeBackfill(head, msg)
+ log.info("snapshot replay no-op id={} day={}", head.cminmsgsId, day)
+ return
+ }
+
val expected = gen?.version ?: 0L
val newFlids = normalized.map { it.first }.toSet()
val delFields = gen?.flids?.minus(newFlids) ?: emptySet()
val newVersion = expected + 1L
- // 3) 自有 PG 单事务原子提交(ACM2-28 定案:覆盖新代 + 域内差删 + SQL CAS + 事件 + SUCCEEDED)
+ val nextStates = normalized.map { (flid, fields) ->
+ val current = flightSchd.findNextStateByFlid(flid)
+ val commands = FlightStateEngine.commandsFromFields(flid, fields, snapshotReplace = true)
+ FlightStateEngine.apply(current, commands, messageId, bumpVersion = true)
+ }
+
try {
txManager.inTransaction {
- // 覆盖新代全量:强行声明 FDAY 归属(JDBC batch 批处理)
- flightSchd.upsertSnapshotBatch(day, normalized)
+ flightSchd.persistNextStates(day, nextStates, snapshotReplace = true)
- // 按代差删域化:仅删除 FDAY = day 且在 delFields 中的记录(ADFT 与跨代已迁移行存活)
if (delFields.isNotEmpty()) {
flightSchd.deleteDiffByDay(day, delFields)
}
- // SQL CAS 版本推进(防双写断言)
val casSuccess = flightSchd.putGenIfVersion(
day = day,
expected = expected,
- newGen = FlightSchdRepository.GenMeta(fday = day, version = newVersion, flids = newFlids),
+ newGen = FlightSchdRepository.GenMeta(
+ fday = day,
+ version = newVersion,
+ flids = newFlids,
+ lastMessageId = messageId,
+ ),
)
if (!casSuccess) {
- // 重放路径:version 已是目标值 → no-op 视为成功,否则为 CAS 冲突
val again = flightSchd.getGen(day)
- if (again == null || again.version != newVersion) {
- throw CasConflictException("gen-cas-conflict: expected=$expected current=${again?.version}")
+ val replayIdentity = again?.lastMessageId == messageId && again.version == newVersion
+ if (!replayIdentity) {
+ throw CasConflictException(
+ "gen-cas-conflict: expected=$expected current=${again?.version} msg=${again?.lastMessageId}",
+ )
}
+ log.info("gen idempotent replay within tx id={} day={}", head.cminmsgsId, day)
}
- // RESP 匹配 REQ_TRACK -> DONE
val schdKind = msg.kind as? MsgKind.Schd
if (schdKind?.subtype == MsgKind.SchdSubtype.RESP) {
reqTrack.findOpenByKind("SCHD")?.let { req ->
@@ -95,20 +112,21 @@ class SnapshotFlow(
}
}
- // 构造并批量写入 schd 投递事件(载荷 = 字段集序列化,KAFKA_SCHD 线格式)
- val events = normalized.map { (flid, fields) ->
- MsgEvent(target = Targets.KAFKA_SCHD, partitionKey = flid, payloadJson = FlightFieldsJson.toJson(fields))
+ val events = nextStates.map { state ->
+ MsgEvent(
+ target = Targets.KAFKA_SCHD,
+ partitionKey = state.flid,
+ payloadJson = FlightFieldsJson.toJson(state.toFlightFields()),
+ )
}
if (events.isNotEmpty()) {
msgEvents.insertAll(events)
}
- // 终态置 SUCCEEDED
procState.update(head.cminmsgsId, ProcStatus.SUCCEEDED)
}
- // 提交后:backfill CMINMSGS(外部副作用,补偿保障)
- inbox.backfillOnSuccess(head.cminmsgsId, msg.meta.sndr, msg.meta.type, msg.meta.styp, msg.meta.seqn)
+ safeBackfill(head, msg)
log.info("snapshot SUCCEEDED id={} day={} flights={}", head.cminmsgsId, day, normalized.size)
} catch (e: CasConflictException) {
log.warn("gen CAS conflict -> FAILED(INFRA) id={} msg={}", head.cminmsgsId, e.message)
@@ -116,6 +134,14 @@ class SnapshotFlow(
}
}
+ private fun safeBackfill(head: ProcState, msg: DecodedMessage) {
+ try {
+ inbox.backfillOnSuccess(head.cminmsgsId, msg.meta.sndr, msg.meta.type, msg.meta.styp, msg.meta.seqn)
+ } catch (e: Exception) {
+ log.error("backfill failed after SUCCEEDED id={} (compensation required)", head.cminmsgsId, e)
+ }
+ }
+
/** staging 结果(骨架)。 */
sealed interface StageResult {
data class Ok(val day: String, val flights: List>) : StageResult
diff --git a/src/main/kotlin/com/gzzn/omms/msgexchange/processing/handlers/GtdtHandler.kt b/src/main/kotlin/com/gzzn/omms/msgexchange/processing/handlers/GtdtHandler.kt
new file mode 100644
index 0000000..707ad15
--- /dev/null
+++ b/src/main/kotlin/com/gzzn/omms/msgexchange/processing/handlers/GtdtHandler.kt
@@ -0,0 +1,44 @@
+package com.gzzn.omms.msgexchange.processing.handlers
+
+import com.fasterxml.jackson.databind.ObjectMapper
+import com.gzzn.omms.msgexchange.codec.FlopPayload
+import com.gzzn.omms.msgexchange.domain.DecodedMessage
+import com.gzzn.omms.msgexchange.domain.Decision
+import com.gzzn.omms.msgexchange.domain.FlightChange
+import com.gzzn.omms.msgexchange.domain.MsgKind
+import com.gzzn.omms.msgexchange.domain.SchdPush
+import com.gzzn.omms.msgexchange.domain.flight.FlightStateEngine
+import com.gzzn.omms.msgexchange.infra.persistence.FlightFieldsJson
+import com.gzzn.omms.msgexchange.processing.Handler
+import jakarta.inject.Singleton
+
+/**
+ * FLOP-GTDT:登机门集合级快照替换(SIS §3.34;GTNO=0 清除)。
+ * 产出 FlightChange.fields["GTDT"] 为 JSON 数组,供 FlightStateEngine → persistNextStates 写入明细表。
+ */
+@Singleton
+class GtdtHandler(
+ private val mapper: ObjectMapper = ObjectMapper(),
+) : Handler {
+ override val kind: MsgKind = MsgKind.Flop("GTDT")
+
+ override fun decide(flightView: Map>, msg: DecodedMessage): Decision {
+ val body = msg.body as? FlopPayload
+ ?: throw IllegalArgumentException("GTDT handler requires FlopPayload body")
+ val gtdtItems = body.collections["GTDT"] ?: emptyList()
+ val fields = linkedMapOf()
+ fields["FLID"] = body.flid
+ body.scalars.forEach { (k, v) -> fields[k] = v }
+ fields["GTDT"] = mapper.writeValueAsString(gtdtItems)
+
+ val current = flightView[body.flid]?.let { FlightStateEngine.fromFlightFields(body.flid, it) }
+ val commands = FlightStateEngine.commandsFromFields(body.flid, fields, snapshotReplace = false)
+ val preview = FlightStateEngine.apply(current, commands, messageId = "", bumpVersion = false)
+ val payloadJson = FlightFieldsJson.toJson(preview.toFlightFields(mapper))
+
+ return Decision(
+ flightChanges = listOf(FlightChange(body.flid, fields)),
+ schdPush = listOf(SchdPush(body.flid, payloadJson)),
+ )
+ }
+}