4.x: API Design and Níma

[tomas-langer]

Tasks to finalize Níma (Helidon Loom based server implementation)

Prioritized:

• 4.x: Remove Níma from texts in repository #7339
• Metrics API for Helidon that is server agnostic and does not use MicroProfile metrics #4868
• Nima: HTTP/2 robustness and production quality code #5425
• Nima: Validate headers in ClientRequestImpl #6338
• Nima: ReadableEntityBase #5388
• Nima: OpenAPI #5411
• Support for Forwarded, X-Forwarded-Host, X-Forwarded-Proto headers #7244
• Níma: Config metadata documentation #5659
• Remove VirtualExecutorUtil #4869 - too big impact, can be postponed until virtual threads are GA - requires Java 21!
• Nima: ServerListener #5385 (ServerListener shutdown in Nima #4854)
• Nima: HttpRouting #5382
• Nima: Http1Connection #5383
• Nima: Http1ServerResponse #5384
• WebSocket - WsConnection todos #5183
• Nima - HTTP/2 Client #4910
• Nima: ClientRequestImpl #5386
• 4.x: Refactor Helidon SE (reactive) on top of Níma #5390
• Nima: Health Checks added twice #5389
• Nima: Refactor features to use HttpFeature #5391
• Nima: Configurable parent context #5393
• Add helidon-config-yaml-mp as a dependency in helidon-microprofile-config. (#4379) #4394

MP switch outstanding tasks:

• Nima: OIDC now contains Nima and SE integration #5395
• MP Fault tolerance is still based on reactive FT #5182
• MP WebSocket module is commented out - needs to be updated to use Níma concepts (UpgradeProvider) #5184
• examples/messaging/pom.xml - require websocket, commented out modules #5185
• examples/microprofile/pom.xml - websocket example commented out #5186
• Nima: TCK Metrics #5402
• Nima: TCK JWT-Auth #5403
• Nima: TCK OpentTracing #5404
• Nima: TCK LRA #5405
• Nima: Tracing configuration #5420

Production quality and other tasks - future releases

• Nima: WebSocket - production quality #5421

• Nima: WebSocket sub protocols #5422

• Nima: HTTP/2 configuration #5416

• Nima: Observe config #5426

• Nima: Observe Log #5655

• Nima: Observe Health #5427

• Nima: Support for Key rotation for server TLS #5412

• Níma: Access Log - fix UserLogEntry #5664

• Nima: Make number of max reroutes configurable in HttpRouting #5423

• Nima: User error handler #5428

• 4.x: Use System.Logger in all modules #5408

• 4.x: Use Duration for our timeouts #5409

• Níma: Consider SSE Support #5666

• Nima: Use common config in APIs #5495

• Níma: Features #5658

Done:

• Refactor Helidon MP on top of Níma #5056
• graphQL refactor to Níma (as part of Refactor Helidon MP on top of Níma #5056)
• service-common - refactor (probably belongs to reactive and microporfile respectively) (as part of Refactor Helidon MP on top of Níma #5056)
• Metrics implementation for Helidon SE #5060
• Security integration with Níma #4873
• FaultTolerance: BulkheadTest is missing (Ported combined FT test to Nima and enhancements to Async #4840)
• FaultTolerance: FaultToleranceTest has disabled tests (Enable FaultToleranceTest in Nima #4855)
• Header types rename #4856
• Add static factory methods to create HeaderValue to Header #4861
• Níma: add integration with Common Context #4866
• Use configuration aligned to Helidon MP (server.port instead of nima.server.port) - Config and name #4802
• Remove old code name of Níma (Warp) from all sources - Config and name #4802
• Single SocketHttpClient - Use a single SocketHttpClient. #4794
• Single DirectHandler - Move DirectHandler to HTTP common and refactor reactive and Nima #4782
• Move HttpException to common (if possible) - align handling of "internal" http exceptions that should be handled by DirectHandlers, and "user" http exceptions that should be handled by error handlers (such as 404?) - @tomas-langer
• Remove deprecated stuff from Common (align LogConfig, ideally to work correctly depending on which logging framework is added to classpath) Logging refactoring #4825