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document-haness/docs/clean-architecture-backend-template/final/evidence/raw/a06-f003-change-streams-true-shipped.txt
T
DongHyeonkaandClaude Opus 5 b2963105a8 docs(keycloak-session-store): import the session-storage lab as a new project
The keycloak project ended with four open questions that design could not
settle. A two-VM lab was built to answer them by measurement, and this is
that material: 26 experiments, 125 raw command outputs, 22 browser captures.

Follows the import procedure in README.md.

  source/     the originating repository verbatim — 78 documents, 28 SVGs,
              8 manifests, plus .source-revision recording the commit
  final/      the SSOT
    document.md   729 lines written from the 29 experiment documents, not
                  concatenated: what was predicted, what was measured, and
                  where the measurement itself was wrong
    evidence/raw    125 outputs, flattened to <experiment>__<file> because
                    the originals collided (01-baseline.txt appeared three
                    times) and the audit only globs the top level
    evidence/meta   one per raw file; command and exitCode are null and the
                    README says why rather than inventing them
    evidence/browser  22 captures
    assets/       three diagrams through techviz
    .techviz/     their VizSpecs

A separate project rather than an addition to keycloak: the B-layer answers
that project's four questions, but the A, C and D layers are about cluster
failure, SSO and operations, and one document.md should hold one subject.
The four question records there can point here through 관계.

Recorded rather than papered over: only three of the 28 diagrams were
remade. The repository forbids hand-drawn SVG and forbids titles inside the
canvas; all 28 originals carry both, so converting them is redrawing, not
reformatting. They stay in source/ and the gap is written into the document.

verify-pipeline.py passes. audit-records.py reports no issues.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-04 22:51:59 +09:00

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# source 빈이 놓인 자리의 조건 넷
@org.springframework.context.annotation.Configuration(proxyBeanMethods = false)
@ConditionalOnClass(MongoTemplate.class)
@ConditionalOnProperty(
prefix = "ca-skeleton.persistence-mongo",
name = "enabled",
havingValue = "true")
@EnableConfigurationProperties(MongoPlatformSettings.class)
@Import(MongoMappingConfiguration.class)
public class MongoPlatformAutoConfiguration {
...
@org.springframework.context.annotation.Configuration(proxyBeanMethods = false)
@ConditionalOnClass(org.springframework.data.mongodb.core.ReactiveMongoTemplate.class)
@ConditionalOnBean(org.springframework.data.mongodb.core.ReactiveMongoTemplate.class)
public static class ReactiveExecution {
...
@Bean
@ConditionalOnMissingBean
public dev.caskeleton.adapter.outbound.mongo.changestream.consumer.MongoChangeStreamSource
# 그 빈이 커서를 연다
return template
.changeStream(org.bson.Document.class)
.watchCollection(collections.require(subscription.collectionProfile()))
.resumeAt(optionsFor(subscription, resumeFrom))
.listen();
# 소비자 빈이 요구하는 조건 다섯
@org.springframework.boot.autoconfigure.condition.ConditionalOnBean({
dev.caskeleton.adapter.outbound.mongo.changestream.MongoChangeStreamSubscription.class,
dev.caskeleton.adapter.outbound.mongo.changestream.MongoResumeCheckpointStore.class,
dev.caskeleton.adapter.outbound.mongo.changestream.MongoResumeTokenCodec.class,
dev.caskeleton.adapter.outbound.mongo.changestream.projector.MongoChangeProjector.class,
dev.caskeleton.adapter.outbound.mongo.changestream.projector.MongoChangeDeduplicationStore
.class
# 그 다섯을 구현하는 클래스 전수
test …/advanced/bridge/MongoChangeMessagingBridgeTest.java CountingCheckpointStore implements MongoResumeCheckpointStore {
test …/changestream/projector/MongoChangeStreamRunnerTest.java RecordingCheckpointStore implements MongoResumeCheckpointStore {
test …/changestream/projector/MongoChangeStreamRunnerTest.java ClaimingDeduplicationStore implements MongoChangeDeduplicationStore {
test …/changestream/projector/MongoChangeStreamRunnerTest.java EmptyDeduplicationStore implements MongoChangeDeduplicationStore {
test …/changestream/consumer/ChangeStreamConsumerLifecycleTest.java PlainTextCodec implements MongoResumeTokenCodec {
test …/changestream/consumer/ChangeStreamConsumerLifecycleTest.java RecordingCheckpointStore implements MongoResumeCheckpointStore {
test …/changestream/consumer/ChangeStreamConsumerLifecycleTest.java CountingProjector implements MongoChangeProjector {
test …/changestream/consumer/ChangeStreamConsumerLifecycleTest.java AlwaysClaims implements MongoChangeDeduplicationStore {
test …/changestream/MongoChangeStreamPipelineTest.java AlwaysClaims implements MongoChangeDeduplicationStore {
test …/changestream/MongoChangeStreamPipelineTest.java NoOpCheckpoints implements MongoResumeCheckpointStore {
# 저장소 자신의 배선 시험이 고정한 네 상태
64: void aReactiveTemplateAssemblesTheReactivePath() {
81: void aSubscriptionWithoutAProjectorBuildsNoConsumer() {
105: void theProjectionPiecesAssembleAConsumer() {
147: void withoutAReactiveTemplateNothingReactiveIsBuilt() {
# 이 자동 구성 파일에서 changeStreams 가 나오는 곳
363: properties.changeStreams(),