hengyuss opened a new pull request, #7531:
URL: https://github.com/apache/shenyu/pull/7531
Closes #7381.
Parent issue: #7351.
## Summary
This PR establishes the initial AI Proxy Protocol–Provider–Transport
contracts
through a minimal runnable OpenAI Chat vertical slice.
- Add ShenYu-owned request and raw upstream request/response models.
- Add explicit Protocol and Provider registries with duplicate and
unsupported
implementation validation.
- Add an OpenAI Chat request decoder that retains the raw JSON payload.
- Add an OpenAI Provider adapter for endpoint, authentication, headers,
model,
token limit, and streaming request adaptation.
- Add a WebClient-based reactive Transport that preserves upstream status,
headers, streaming chunks, and error bodies.
- Add `AiProxyEngine` to coordinate request decoding, provider adaptation,
and
transport execution.
- Expose the initial implementations as Spring beans.
## Compatibility
This PR intentionally does not connect `AiProxyEngine` to `AiProxyPlugin`.
The existing streaming and non-streaming plugin execution paths, retry,
fallback, proxy-key validation, and response writing remain unchanged.
Response protocol conversion, additional providers, production transport
configuration, retry/fallback orchestration, and the final plugin migration
remain follow-up work under #7351 and its layer-specific sub-issues.
## Verification
```text
./mvnw -pl shenyu-plugin/shenyu-plugin-ai/shenyu-plugin-ai-proxy -am \
-Dtest='AiProxyEngineTest,OpenAiChatTest,AiProxyProtocolFactoryTest,AiProxyProviderFactoryTest,OpenAiTest,WebClientAiProxyTransportTest'
\
-Dsurefire.failIfNoSpecifiedTests=false \
-Dmaven.javadoc.skip=true -Drat.skip=true -Djacoco.skip=true test
```
- 16 focused tests passed.
- Checkstyle reported zero violations for all modules in the reactor build.
- The AI Proxy starter and its dependencies compile successfully.
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