call services from API instead of adapters

src/text_generation/adapters/llm/language_model_with_rag.py

@@ -16,7 +16,7 @@ from src.text_generation.adapters.llm.abstract_language_model import AbstractLan
 from src.text_generation.adapters.llm.text_generation_foundation_model import TextGenerationFoundationModel
 
 
-class Phi3LanguageModelWithRag(AbstractLanguageModel):
+class LanguageModelWithRag(AbstractLanguageModel):
 
     def __init__(self):
         logger = logging.getLogger()

src/text_generation/entrypoints/http_api_controller.py

@@ -1,8 +1,8 @@
 import json
 import traceback
 
-from src.text_generation.services.language_models.language_model_response_service import TextGenerationResponseService
-from src.text_generation.adapters.llm.language_model_with_rag import Phi3LanguageModelWithRag
+from src.text_generation.services.language_models.text_generation_response_service import TextGenerationResponseService
+from src.text_generation.services.language_models.retrieval_augmented_generation_response_service import RetrievalAugmentedGenerationResponseService
 from src.text_generation.services.logging.file_logging_service import FileLoggingService
 
 class HttpApiController:
@@ -12,7 +12,7 @@ class HttpApiController:
         # Register routes
         self.register_routes()
         self.text_generation_svc = TextGenerationResponseService()
-        self.llm_rag_svc = Phi3LanguageModelWithRag()
+        self.rag_svc = RetrievalAugmentedGenerationResponseService()
 
     def register_routes(self):
         """Register all API routes"""
@@ -84,7 +84,7 @@ class HttpApiController:
             start_response('400 Bad Request', response_headers)
             return [response_body]
 
-        response_text = self.text_generation_svc.invoke(user_prompt=prompt)
+        response_text = self.rag_svc.invoke(user_prompt=prompt)
         response_body = self.format_response(response_text)
         
         http_status_code = 200 # make enum

src/text_generation/entrypoints/server.py

@@ -5,7 +5,8 @@ from wsgiref.simple_server import make_server
 
 class RestApiServer:
     def __init__(self):
-        self.logger = FileLoggingService(filename='text_generation.server.log')
+        logging_service = FileLoggingService(filename='text_generation.server.log')
+        self.logger = logging_service.logger
 
     def listen(self):
         try:

src/text_generation/services/language_models/retrieval_augmented_generation_response_service.py

@@ -0,0 +1,14 @@
+from src.text_generation.adapters.llm.language_model_with_rag import LanguageModelWithRag
+from src.text_generation.services.language_models.abstract_language_model_response_service import AbstractLanguageModelResponseService
+
+
+class RetrievalAugmentedGenerationResponseService(AbstractLanguageModelResponseService):
+
+    def invoke(self, user_prompt: str) -> str:
+
+        if not user_prompt:
+            raise ValueError(f"Parameter 'user_prompt' cannot be empty or None")
+
+        rag = LanguageModelWithRag()
+        response = rag.invoke(user_prompt=user_prompt)
+        return response