chore: Consistent naming for VectorIO providers (#1023)

# What does this PR do?

This changes all VectorIO providers classes to follow the pattern
`<ProviderName>VectorIOConfig` and `<ProviderName>VectorIOAdapter`. All
API endpoints for VectorIOs are currently consistent with `/vector-io`.

Note that API endpoint for VectorDB stay unchanged as `/vector-dbs`. 

## Test Plan

I don't have a way to test all providers. This is a simple renaming so
things should work as expected.

---------

Signed-off-by: Yuan Tang <terrytangyuan@gmail.com>

llama_stack/providers/inline/vector_io/chroma/__init__.py

@@ -8,10 +8,10 @@ from typing import Dict
 
 from llama_stack.providers.datatypes import Api, ProviderSpec
 
-from .config import ChromaInlineImplConfig
+from .config import ChromaVectorIOConfig
 
 
-async def get_provider_impl(config: ChromaInlineImplConfig, deps: Dict[Api, ProviderSpec]):
+async def get_provider_impl(config: ChromaVectorIOConfig, deps: Dict[Api, ProviderSpec]):
     from llama_stack.providers.remote.vector_io.chroma.chroma import (
         ChromaVectorIOAdapter,
     )

llama_stack/providers/inline/vector_io/chroma/config.py

@@ -9,7 +9,7 @@ from typing import Any, Dict
 from pydantic import BaseModel
 
 
-class ChromaInlineImplConfig(BaseModel):
+class ChromaVectorIOConfig(BaseModel):
     db_path: str
 
     @classmethod

llama_stack/providers/inline/vector_io/faiss/__init__.py

@@ -8,14 +8,14 @@ from typing import Dict
 
 from llama_stack.providers.datatypes import Api, ProviderSpec
 
-from .config import FaissImplConfig
+from .config import FaissVectorIOConfig
 
 
-async def get_provider_impl(config: FaissImplConfig, deps: Dict[Api, ProviderSpec]):
-    from .faiss import FaissVectorIOImpl
+async def get_provider_impl(config: FaissVectorIOConfig, deps: Dict[Api, ProviderSpec]):
+    from .faiss import FaissVectorIOAdapter
 
-    assert isinstance(config, FaissImplConfig), f"Unexpected config type: {type(config)}"
+    assert isinstance(config, FaissVectorIOConfig), f"Unexpected config type: {type(config)}"
 
-    impl = FaissVectorIOImpl(config, deps[Api.inference])
+    impl = FaissVectorIOAdapter(config, deps[Api.inference])
     await impl.initialize()
     return impl

llama_stack/providers/inline/vector_io/faiss/config.py

@@ -16,7 +16,7 @@ from llama_stack.providers.utils.kvstore.config import (
 
 
 @json_schema_type
-class FaissImplConfig(BaseModel):
+class FaissVectorIOConfig(BaseModel):
     kvstore: KVStoreConfig
 
     @classmethod

llama_stack/providers/inline/vector_io/faiss/faiss.py

@@ -24,7 +24,7 @@ from llama_stack.providers.utils.memory.vector_store import (
     VectorDBWithIndex,
 )
 
-from .config import FaissImplConfig
+from .config import FaissVectorIOConfig
 
 logger = logging.getLogger(__name__)
 
@@ -112,8 +112,8 @@ class FaissIndex(EmbeddingIndex):
         return QueryChunksResponse(chunks=chunks, scores=scores)
 
 
-class FaissVectorIOImpl(VectorIO, VectorDBsProtocolPrivate):
-    def __init__(self, config: FaissImplConfig, inference_api: Api.inference) -> None:
+class FaissVectorIOAdapter(VectorIO, VectorDBsProtocolPrivate):
+    def __init__(self, config: FaissVectorIOConfig, inference_api: Api.inference) -> None:
         self.config = config
         self.inference_api = inference_api
         self.cache = {}