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document-haness/docs/clean-architecture-backend-template/tech-log-studio/schema-and-wire-models/concept/concept-messaging-schema-json-c02.md
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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

2.5 KiB

kind, slug, title, topic, project, status, sourceRevision, rootTreeNode, evidenceCapturedOn, assets, evidence, source, module
kind slug title topic project status sourceRevision rootTreeNode evidenceCapturedOn assets evidence source module
CONCEPT messaging-schema-json-c02 출하 구성의 codec registry에는 JSON 하나만 들어간다 schema-and-wire-models clean-architecture-backend-template 게시 전 21234e38cdb9a926cbc92bb97a2aee2e4a7d2916 concept:messaging-schema-json-c02 2026-09-01
key file
messaging-schema-json-c02 ../../../final/evidence/rendered/messaging-schema-json-c02.svg
../../../final/evidence/raw/messaging-schema-json-c02.txt
원본 분석 절은 analysis/messaging/messaging-schema-json.md#L71 이다.
messaging-schema-json

출하 구성의 codec registry에는 JSON 하나만 들어간다

들어오는 것: messaging-core-api(api), messaging-schema-api(api), jackson-databind(implementation). 나가는 것: messaging-spring-boot-starter(registry allowed_dependencies에 포함).

관계

  • 실패 코드는 운영자의 다음 행동이 갈리는 지점마다 나눈다 같은 분석 리프에서 끌어낸 규칙이다.

본문

들어오는 것은 messaging-core-api(api), messaging-schema-api(api), jackson-databind(implementation)다. 나가는 것은 messaging-spring-boot-starter(registry allowed_dependencies에 포함)다. 실제 배선 지점이 하나 있다 — 이 플랫폼에서 유일하게 조립되는 codec이다.

MessageContracts 참조 위치

:::evidence key="messaging-schema-json-c02" alt="코드베이스에서 MessageContracts 를 검색한 출력 8줄. 이 기록이 세는 참조가 그 출력에 그대로 보인다." caption="MessageContracts 코드베이스 검색 — 8줄 · exit 0" zoom="true" :::

varargs 자리가 비어 있다

RegisteredMessageCodecs.of(defaultCodec, codecs...)의 varargs 자리가 비어 있다. 즉 출하 구성의 codec registry에는 JSON 하나만 들어간다. Avro·Protobuf·raw bytes는 등록되지 않는다.

포맷 중립이어야 할 정책이 한 포맷 상수를 참조한다

두 번째 배선 지점은 상수 참조다. payload 정책의 상한이 JSON codec의 상수에서 파생된다 — §17에서 다룬다.

bean이 없으면 빈 registry로 만들어진다

contracts.getIfAvailable(MessageContracts::none)이 기본값이므로, 애플리케이션이 MessageContracts bean을 내놓지 않으면 빈 registry로 codec이 만들어진다. 그 codec은 모든 encode/decodeUNKNOWN_MESSAGE_TYPE으로 거절한다.