cameleer-server/.planning/STATE.md

---
gsd_state_version: 1.0
milestone: v1.0
milestone_name: milestone
status: completed
stopped_at: Phase 4 context gathered
last_updated: "2026-03-11T18:37:56.075Z"
last_activity: 2026-03-11 -- Completed 03-02 (SSE push + command delivery)
progress:
  total_phases: 4
  completed_phases: 3
  total_plans: 9
  completed_plans: 9
  percent: 95
---

# Project State

## Project Reference

See: .planning/PROJECT.md (updated 2026-03-11)

**Core value:** Users can reliably search and find any transaction across all connected Camel instances -- by any combination of state, time, duration, or content -- even at millions of transactions per day with 30-day retention.
**Current focus:** Phase 3: Agent Registry + SSE Push

## Current Position

Phase: 3 of 4 (Agent Registry + SSE Push)
Plan: 2 of 2 in current phase (SSE push + command delivery)
Status: Phase 03 complete, Phase 04 remaining
Last activity: 2026-03-11 -- Completed 03-02 (SSE push + command delivery)

Progress: [█████████░] 95%

## Performance Metrics

**Velocity:**
- Total plans completed: 0
- Average duration: -
- Total execution time: 0 hours

**By Phase:**

| Phase | Plans | Total | Avg/Plan |
|-------|-------|-------|----------|
| - | - | - | - |

**Recent Trend:**
- Last 5 plans: -
- Trend: -

*Updated after each plan completion*
| Phase 01 P01 | 3min | 2 tasks | 13 files |
| Phase 01 P02 | 7min | 2 tasks | 14 files |
| Phase 01 P03 | 10min | 2 tasks | 12 files |
| Phase 02 P01 | 13min | 2 tasks | 15 files |
| Phase 02 P02 | 14min | 2 tasks | 10 files |
| Phase 02 P03 | 12min | 2 tasks | 9 files |
| Phase 02 P04 | 22min | 1 tasks | 5 files |
| Phase 03 P01 | 15min | 2 tasks | 15 files |
| Phase 03 P02 | 32min | 2 tasks | 7 files |

## Accumulated Context

### Decisions

Decisions are logged in PROJECT.md Key Decisions table.
Recent decisions affecting current work:

- [Roadmap]: ClickHouse chosen as primary store (research recommendation, HIGH confidence)
- [Roadmap]: Full-text search starts with ClickHouse skip indexes (tokenbf_v1), OpenSearch deferred
- [Roadmap]: Phases 2 and 3 can execute in parallel (both depend only on Phase 1)
- [Roadmap]: Web UI deferred to v2
- [Phase 01]: Used spring-boot-starter-jdbc for JdbcTemplate + HikariCP auto-config
- [Phase 01]: Created MetricsSnapshot record in core module (cameleer3-common has no metrics model)
- [Phase 01]: Upgraded testcontainers to 2.0.3 for Docker Desktop 29.x compatibility
- [Phase 01]: Changed error_message/error_stacktrace to non-nullable String for tokenbf_v1 index compat
- [Phase 01]: TTL expressions require toDateTime() cast for DateTime64 columns in ClickHouse 25.3
- [Phase 01]: Controllers accept raw String body to support both single and array JSON payloads
- [Phase 01]: IngestionService is a plain class in core module, wired as bean by IngestionBeanConfig in app
- [Phase 01]: Removed @Configuration from IngestionConfig to fix duplicate bean with @EnableConfigurationProperties
- [Phase 02]: FlatProcessor record captures depth and parentIndex during DFS traversal
- [Phase 02]: Exchange bodies/headers concatenated into single String columns for LIKE search
- [Phase 02]: Headers serialized to JSON via Jackson ObjectMapper (static instance)
- [Phase 02]: DiagramRenderer/DiagramLayout stubs created to resolve pre-existing compilation blocker
- [Phase 02]: ELK layered algorithm with top-to-bottom direction for route diagram layout
- [Phase 02]: JFreeSVG over Batik for lightweight server-side SVG generation
- [Phase 02]: Manual Accept header parsing -- JSON only when first preference, SVG as default
- [Phase 02]: xtext xbase lib required at runtime by ELK 0.11.0 LayeredMetaDataProvider
- [Phase 02]: Compound node children detected from RouteNode.getChildren() (matches agent graph model)
- [Phase 02]: Search tests use correlationId scoping for shared ClickHouse isolation
- [Phase 02]: findProcessorSnapshot uses ClickHouse 1-indexed array access
- [Phase 02]: DetailController injects ClickHouseExecutionRepository directly for snapshot (not via interface)
- [Phase 02]: DiagramRepository injected via constructor into ClickHouseExecutionRepository for diagram hash lookup during batch insert
- [Phase 02]: Awaitility ignoreExceptions pattern adopted for all ClickHouse polling assertions
- [Phase 02]: Surefire and Failsafe both need reuseForks=false for ELK classloader isolation
- [Phase 03]: AgentInfo as Java record with wither-style methods for immutable ConcurrentHashMap swapping
- [Phase 03]: Dead threshold measured from staleTransitionTime, not lastHeartbeat
- [Phase 03]: spring.mvc.async.request-timeout=-1 set proactively for SSE support in Plan 02
- [Phase 03]: SSE events path excluded from ProtocolVersionInterceptor for EventSource client compatibility
- [Phase 03]: SseConnectionManager uses reference-equality in emitter callbacks to avoid removing newer emitters
- [Phase 03]: java.net.http.HttpClient async API for SSE integration tests (no webflux dependency)

### Pending Todos

None yet.

### Blockers/Concerns

- [Phase 1]: ClickHouse Java client API needs phase-specific research (library has undergone changes)
- [Phase 1]: Must read cameleer3-common PROTOCOL.md before designing ClickHouse schema
- [Phase 2]: Diagram rendering library selection is an open question (Batik, jsvg, JGraphX, or client-side)
- [Phase 2]: ClickHouse skip indexes may not suffice for full-text; decision point during Phase 2

## Session Continuity

Last session: 2026-03-11T18:37:56.072Z
Stopped at: Phase 4 context gathered
Resume file: .planning/phases/04-security/04-CONTEXT.md